A method and system for monitoring patient safety after neurovascular surgery

Abstract

The present invention discloses a method and system for monitoring the safety of patients after neurovascular surgery, which relates to the field of medical health monitoring, and includes: a maximum monitoring interval calculation module, a data monitoring module, and a monitoring time adjustment module. The present invention calculates the comprehensive risk rate of the patient in real time through vital sign reference data and biochemical index reference data, adjusts the time point of the next monitoring according to the comprehensive risk rate, and takes into account the influence of the patient's emotional state on some monitoring indicators, and dynamically adjusts the preset threshold range, so as to be able to more flexibly respond to various changes in the patient's postoperative recovery process; this dynamic adjustment mechanism makes the monitoring more in line with the actual needs of the patient, improves the timeliness and effectiveness of the monitoring, helps to timely discover and deal with potential complications, and can save medical resources at the same time, and can also avoid excessive monitoring of patients with lower risk rates, resulting in affected patient experience.

Description

Technical Field

[0001] The present invention relates to the field of medical health monitoring, and in particular to a method and system for monitoring patient safety after neurovascular surgery. Background Art

[0002] With the development of medical technology, neurovascular surgery has become an important means of treating a variety of brain and spinal vascular diseases; however, safe monitoring of patients after surgery remains a challenge; traditional monitoring methods often rely on regular manual inspections and monitoring of vital signs, which is not only inefficient but may also miss important abnormal signals due to human factors.

[0003] In the existing technology, the monitoring system usually lacks comprehensive analysis of the patient's preoperative and intraoperative data, as well as real-time and dynamic monitoring of postoperative vital signs and biochemical indicators; in addition, the existing monitoring methods often cannot flexibly adjust the monitoring frequency according to the individual differences of the patients and the postoperative recovery conditions, which may lead to excessive monitoring or untimely monitoring; untimely monitoring may result in the failure to discover the patient's abnormal condition in the first time and miss the best time for intervention and treatment, while excessive monitoring will affect the patient's experience and consume unnecessary medical resources; on the other hand, after undergoing surgery, the patient may experience negative emotional states such as anxiety and fear, which may affect some of the patient's physiological indicators, and this factor is often ignored in the existing monitoring methods, which may lead to misjudgment of the monitoring results; in order to improve the efficiency and accuracy of safety monitoring of patients after neurovascular surgery, the present invention proposes a personalized monitoring method based on the patient's preoperative and intraoperative data. Summary of the invention

[0004] The present invention calculates the comprehensive risk rate of the patient in real time through the reference data of vital signs and the reference data of biochemical indicators, adjusts the time point of the next monitoring according to the comprehensive risk rate, conducts the next monitoring in a short time for the patient with a higher comprehensive risk rate, and appropriately extends the time of the next monitoring for the patient with a lower comprehensive risk rate, and at the same time takes into account the influence of the patient's emotional state on some monitoring indicators, dynamically adjusts the warning threshold range in each monitoring by calculating the emotion increase adjustment rate, thereby being able to more flexibly respond to various changes in the patient's postoperative recovery process; this dynamic adjustment mechanism makes the monitoring more in line with the actual needs of the patient, improves the timeliness and effectiveness of the monitoring, helps to timely discover and deal with potential complications, ensures the patient's postoperative safety, saves medical resources, and avoids excessive monitoring of patients with a lower risk rate, which affects the patient experience.

[0005] A method for monitoring the safety of a patient after neurovascular surgery, comprising:

[0006] Obtaining preoperative reference data and intraoperative reference data of the patient, the preoperative reference data including comorbidity data and age data; the intraoperative reference data including intraoperative blood loss data and operation duration; calculating and obtaining the patient reference value based on the obtained preoperative reference data and intraoperative reference data; determining the maximum monitoring interval of the patient's vital sign data and the maximum monitoring interval of the biochemical index data using the obtained patient reference value based on the preset first adjustable range and second adjustable range;

[0007] An emotion assessment time window is set, and the end time of the emotion assessment time window is the first monitoring time point; within the emotion assessment time window, the patient's skin electrical response SCR and heart rate are measured, and the patient's emotion increase adjustment rate is calculated based on the obtained SCR values ​​and heartbeat intervals; the obtained emotion increase adjustment rate is used to adjust the heart rate warning threshold range, blood pressure warning threshold range and respiratory rate warning threshold range in the preset warning threshold range; vital sign data are obtained at the current first monitoring time point to determine whether the obtained vital sign data is within the adjusted warning threshold range, and if not, an abnormal alarm is issued; if so, the patient's vital sign reference data is selected from the currently obtained vital sign data; the vital sign reference data includes heart rate, blood pressure, respiratory rate, blood oxygen saturation and body temperature; at the same time, the patient's GCS coma score is obtained, and the first risk rate of the patient is calculated based on the obtained vital sign reference data and the GCS coma score;

[0008] Acquire biochemical indicator data at the current second monitoring time point; determine whether the acquired biochemical indicator data is within a preset warning threshold range, and if not, issue an abnormal warning; if so, extract the patient's biochemical indicator reference data from the currently acquired biochemical indicator data; the biochemical indicator reference data includes blood sugar, white blood cell count, C-reactive protein and hemoglobin; calculate and acquire the patient's second risk rate based on the acquired biochemical indicator reference data;

[0009] Calculate and obtain a comprehensive risk rate by using the obtained first risk rate and second risk rate;

[0010] Based on the currently acquired comprehensive risk rate, the time interval of the patient's next first monitoring time point is adjusted within the maximum monitoring interval of the patient's vital signs data; at the same time, based on the comprehensive risk rate, the time interval of the patient's next second monitoring time point is adjusted within the maximum monitoring interval of the patient's biochemical indicator data; the time interval of the next first monitoring time point and the time interval of the next second monitoring time point are used to obtain the next vital signs data and biochemical indicator data, respectively.

[0011] Preferably, based on the acquired preoperative reference data and intraoperative reference data, the patient reference value is calculated and acquired; based on the preset first adjustable range and second adjustable range, the maximum monitoring interval of the patient's vital sign data and the maximum monitoring interval of the biochemical index data are determined using the acquired patient reference value. The specific operations are as follows:

[0012] For patient age A, set an upper age limit and minimum age If the patient is younger than or equal to , then the patient's age score is 0; if the patient's age A is greater than and less than , then use the formula Calculate the patient's age score ; If the patient's age A is greater than or equal to , then the patient's age score is 1;

[0013] Determine whether the patient has comorbidities. If so, the patient's comorbidity score If not, the patient's comorbidity score is 0;

[0014] Set an upper limit for the amount of bleeding during surgery B and lower limit of bleeding volume ; If the patient's intraoperative blood loss B is less than or equal to , then the patient's bleeding volume score If the patient's intraoperative bleeding volume B is greater than and less than , then use the formula Calculate the patient's bleeding volume score ; If the patient's intraoperative bleeding volume B is greater than or equal to , then the patient's bleeding volume score is 1;

[0015] Set an upper limit on the duration of surgery D and the minimum surgical time ; If the duration of surgery D is less than or equal to , then the patient's surgery time score is 0; if the operation duration D is greater than and less than , then use the formula Calculate the surgical time score ; If the duration of surgery D is greater than or equal to , then the patient's surgery time score is 1;

[0016] Based on the patient's age score obtained , patient comorbidity score , patient bleeding volume score and patient operation time score , using the formula Calculate and obtain patient reference values;

[0017] Set the first adjustable range to to ; Using the formula Calculate the maximum monitoring interval for obtaining the patient's vital signs data ; Set the second adjustable range to to ; Using the formula Calculate the maximum monitoring interval for obtaining the patient's biochemical index data .

[0018] Preferably, based on the obtained SCR values ​​and heartbeat intervals, the patient's emotion increase adjustment rate is calculated; the obtained emotion increase adjustment rate is used to adjust the heart rate warning threshold range, the blood pressure warning threshold range and the respiratory rate warning threshold range in the preset warning threshold range, and the specific operation is as follows:

[0019] Set the SCR standard range to to ; Select the maximum SCR value among the obtained SCR values , using the formula Calculate the SCR peak ratio ; Calculate the mean of the SCR value , using the formula Calculate the SCR mean ratio ;

[0020] Set the RMSSD standard range to to , based on the obtained heartbeat interval , i=1, 2, ..., n; n represents the number of heartbeat intervals obtained in the current emotion evaluation time window; using the formula Calculate the patient's RMSSD value; then use the formula Calculate the RMSSD ratio of the patient ; Obtained SCR peak ratio , SCR mean ratio RMSSD value ratio The higher it is, the more intense the patient’s emotional state is;

[0021] Using the formula Calculate and obtain the increase adjustment rate, where x represents the maximum increase that can be adjusted for the heart rate warning threshold range, the blood pressure warning threshold range, and the respiratory rate warning threshold range under the influence of the patient's emotional state;

[0022] The specific adjustment method of the warning threshold range is as follows: the heart rate warning threshold range is changed from the original to Adjust to to ; The blood pressure warning threshold range is changed from the original to Adjust to to ; The respiratory rate warning threshold range is changed from the original to Adjust to to .

[0023] Preferably, based on the acquired vital sign reference data and the GCS coma score, the first risk rate of the patient is calculated and acquired, and the specific operation is as follows:

[0024] Based on the heart rate warning threshold range for the currently acquired heart rate HR and , calculate and obtain the intermediate value ; Using the formula Calculate the heart rate risk value ;in, Heart rate index factor, used to control the heart rate risk value when the heart rate HR is close to the heart rate warning threshold range. growth rate;

[0025] Based on the blood pressure warning threshold range, the current blood pressure BP is obtained. and Calculate the intermediate value ; Using the formula Calculate blood pressure risk value ;in, It is a blood pressure index factor, which is used to control the blood pressure risk value when the blood pressure BP is close to the blood pressure warning threshold range. growth rate;

[0026] Based on the respiratory rate warning threshold range, the current respiratory rate RR is and , calculate and obtain the intermediate value , using the formula Calculate the respiratory rate risk value ;

[0027] Based on the currently acquired blood oxygen saturation SpO2, the warning threshold of blood oxygen saturation and normal threshold of blood oxygen saturation If the patient's blood oxygen saturation SpO2 is greater than or equal to , then the blood oxygen saturation risk value If the patient's blood oxygen saturation SpO2 is lower than and higher than , then use the formula Calculate the blood oxygen saturation risk value ;in, It is the blood oxygen index factor, which is used to control the blood oxygen saturation SpO2 risk value when it is close to the blood oxygen saturation warning threshold. growth rate;

[0028] Based on the temperature warning threshold range, the current body temperature T is and , calculate and obtain the intermediate value , using the formula Calculate the body temperature risk value ;

[0029] For the currently obtained GCS coma score, use the formula Normalize the GCS coma score to obtain the coma score risk value ;

[0030] Based on the heart rate risk value obtained , blood pressure risk value , respiratory rate risk value , blood oxygen saturation risk value , Body temperature risk value and coma score risk ; Using the formula Calculate the first risk rate .

[0031] Preferably, based on the acquired biochemical index reference data, the second risk rate of the patient is calculated and acquired, and the specific operation is as follows:

[0032] Based on the blood sugar warning threshold range, the current blood sugar BG is obtained. and , calculate and obtain the intermediate value ; Using the formula Calculate blood sugar risk value ;in, It is the blood sugar index factor, which is used to control the blood sugar risk value when blood sugar BG is close to the blood sugar warning threshold range. growth rate;

[0033] Based on the current white blood cell count WBC, the warning threshold range of the white blood cell count and , calculate and obtain the intermediate value ; Using the formula Calculate the risk value of white blood cell count ;in, It is the white blood cell index factor, which is used to control the white blood cell count risk value when the white blood cell count WBC is close to the white blood cell count warning threshold range. growth rate;

[0034] For C-reactive protein (CPR), based on the normal threshold of C-reactive protein and C-reactive protein warning threshold If the patient's C-reactive protein CPR is less than or equal to , then the patient's C-reactive protein risk value is 0; if the patient's C-reactive protein is greater than and less than , then use the formula Calculate the risk value of C-reactive protein ; Where k is a constant of growth rate, which is used to control the risk value of C-reactive protein The speed of ascent;

[0035] Based on the hemoglobin Hb value currently obtained, the warning threshold range of hemoglobin and , calculate and obtain the intermediate value ; Using the formula Calculate the hemoglobin risk value ;in, It is the hemoglobin index factor, which is used to control the hemoglobin risk value when the hemoglobin Hb is close to the hemoglobin warning threshold range. growth rate;

[0036] Based on the obtained blood sugar risk value , White blood cell count risk value , C-reactive protein risk value and hemoglobin risk value , using the formula Calculate the second risk rate .

[0037] Preferably, the comprehensive risk rate is calculated and obtained, and the specific operations are as follows:

[0038] Based on the most recently obtained first risk rate and the second risk rate , using the formula Calculate the comprehensive risk rate R, where and are the weights of the first risk rate and the second risk rate, Less than .

[0039] Preferably, based on the currently acquired comprehensive risk rate, the time interval of the next first monitoring time point of the patient is adjusted within the maximum monitoring interval of the patient's vital sign data; and at the same time, based on the comprehensive risk rate, the time interval of the next second monitoring time point of the patient is adjusted within the maximum monitoring interval of the patient's biochemical index data. The specific operations are as follows:

[0040] Maximum monitoring interval based on the patient's vital signs data and the most recently obtained comprehensive risk rate R, the time interval for the next first monitoring time From 0 to The specific adjustment formula is: ;

[0041] Maximum monitoring interval based on the patient's biochemical index data and the most recently obtained comprehensive risk rate R, the time interval for the next second monitoring time exist arrive Adjustments are made within, among which, is the preset minimum monitoring interval of biochemical index data, and the specific adjustment formula is: .

[0042] Preferably, a neurovascular postoperative patient safety monitoring system comprises:

[0043] The maximum monitoring interval calculation module includes a patient reference value calculation unit, a first calculation unit, and a second calculation unit; the patient reference value calculation unit is used to obtain the patient's preoperative reference data and intraoperative reference data, and calculate the patient reference value based on the obtained preoperative reference data and intraoperative reference data; the first calculation unit is used to determine the patient's vital sign data maximum monitoring interval according to the obtained patient reference value; the second calculation unit is used to determine the biochemical index data maximum monitoring interval according to the obtained patient reference value;

[0044] The data monitoring module includes an emotion assessment unit, a vital sign data monitoring unit and a biochemical index data monitoring unit; the emotion assessment unit is used to calculate the patient's emotion increase adjustment rate, and use the obtained emotion increase adjustment rate to adjust the heart rate warning threshold range, blood pressure warning threshold range and respiratory rate warning threshold range in the preset warning threshold range; the vital sign data monitoring unit is used to obtain vital sign data at the current first monitoring time point, and determine whether the obtained vital sign data is within the adjusted warning threshold range, and if not, issue an abnormal alarm; the biochemical index data monitoring unit is used to obtain biochemical index data at the current second monitoring time point; determine whether the obtained biochemical index data is within the preset warning threshold range, and if not, issue an abnormal alarm;

[0045] The monitoring time adjustment module comprises a first risk rate calculation unit, a second risk rate calculation unit, a comprehensive risk rate calculation unit, a first adjustment unit and a second adjustment unit; the first risk rate calculation unit is used to select the patient's vital sign reference data from the currently acquired vital sign data; at the same time, the patient's GCS coma score is acquired, and the patient's first risk rate is calculated based on the acquired vital sign reference data and the GCS coma score; the second risk rate calculation unit is used to extract the patient's biochemical index reference data from the currently acquired biochemical index data; based on the acquired biochemical index reference data, the patient's second risk rate is calculated; the comprehensive risk rate calculation unit is used to calculate the comprehensive risk rate through the acquired first risk rate and the second risk rate; the first adjustment unit is used to determine the time interval of the patient's next first monitoring time point according to the patient's maximum monitoring interval of the vital sign data and the currently acquired comprehensive risk rate; the second adjustment unit is used to determine the time interval of the patient's next second monitoring time point according to the patient's maximum monitoring interval of the biochemical index data and the currently acquired comprehensive risk rate.

[0046] The present invention has the following advantages:

[0047] The present invention calculates the comprehensive risk rate of the patient in real time through the reference data of vital signs and the reference data of biochemical indicators, adjusts the time point of the next monitoring according to the comprehensive risk rate, conducts the next monitoring in a short time for the patient with a higher comprehensive risk rate, and appropriately extends the time of the next monitoring for the patient with a lower comprehensive risk rate, and at the same time takes into account the influence of the patient's emotional state on some monitoring indicators, dynamically adjusts the warning threshold range in each monitoring by calculating the emotion increase adjustment rate, thereby being able to more flexibly respond to various changes in the patient's postoperative recovery process; this dynamic adjustment mechanism makes the monitoring more in line with the actual needs of the patient, improves the timeliness and effectiveness of the monitoring, helps to timely discover and deal with potential complications, ensures the patient's postoperative safety, saves medical resources, and avoids excessive monitoring of patients with a lower risk rate, which affects the patient experience.

[0048] The present invention analyzes the patient's preoperative and intraoperative data, takes into account individual differences such as the patient's age, comorbidities, intraoperative blood loss and duration of surgery, and calculates reference values ​​and maximum monitoring intervals that are more in line with the patient's actual situation, providing a more reasonable limit range for the subsequent dynamic adjustment mechanism of the monitoring time; the personalized monitoring plan not only improves the accuracy of monitoring, but also effectively reduces unnecessary waste of medical resources, making monitoring more efficient and economical. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] Figure 1 This is a schematic diagram of the structure of a post-neurovascular surgery patient safety monitoring system used in an embodiment of the present invention. DETAILED DESCRIPTION

[0050] In order to enable persons skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0051] Embodiment 1, a method for monitoring the safety of a patient after neurovascular surgery, comprising:

[0052] Obtain the patient's preoperative reference data and intraoperative reference data. The preoperative reference data includes comorbidity data and age data. Comorbidity data refers to other diseases or health problems that the patient already has before the operation, such as diabetes, hypertension, etc. This information is crucial for assessing the patient's overall health status and surgical risks. The patient's age can affect the surgical risk and recovery process. For example, the elderly may have a higher risk of complications than young people. Intraoperative reference data includes intraoperative bleeding volume data and operation duration. The amount of bleeding during surgery is an important indicator for assessing the complexity of the operation and the patient's condition. A large amount of bleeding may mean that the operation is difficult or the patient's condition is unstable. The duration of the operation can reflect the complexity of the operation and the physiological stress on the patient. The longer the operation time, the higher the risk the patient may face. Based on the obtained preoperative reference data and intraoperative reference data, calculate and obtain the patient's reference value, which can reflect the patient's overall health status and surgical risks. Based on the preset first adjustable range and second adjustable range, The obtained patient reference values ​​are used to determine the maximum monitoring interval of the patient's vital signs data and the maximum monitoring interval of the biochemical index data; the first adjustable range refers to the frequency range of monitoring the patient's vital signs in the existing monitoring method, ranging from more than ten minutes to several hours; and the second adjustable range refers to the frequency range of monitoring the patient's biochemical indexes, ranging from several hours to dozens of hours; the maximum monitoring interval of vital signs data refers to the maximum time interval for monitoring the patient's vital signs (such as heart rate, blood pressure, respiratory rate, blood oxygen saturation and body temperature) after surgery. This interval is dynamic and is adjusted within the maximum time interval according to the patient's specific situation to ensure that any possible abnormalities are detected in time; similarly, the maximum monitoring interval of biochemical index data refers to the maximum time interval for monitoring the patient's biochemical indexes (such as blood sugar, white blood cell count, C-reactive protein and hemoglobin); by analyzing preoperative and intraoperative data, medical staff can better understand the patient's health status and thus develop a more appropriate monitoring plan;

[0053] An emotion assessment time window is set, and the end time of the emotion assessment time window is the first monitoring time point; within the emotion assessment time window, the patient's skin electrical response SCR and heart rate are measured, and the patient's emotion increase adjustment rate is calculated based on the obtained SCR values ​​and heartbeat intervals; the obtained emotion increase adjustment rate is used to adjust the heart rate warning threshold range, blood pressure warning threshold range, and respiratory rate warning threshold range in the preset warning threshold range; vital signs data are obtained at the current first monitoring time point, including but not limited to indicators such as heart rate, blood pressure, respiratory rate, blood oxygen saturation, and body temperature, and it is determined whether the obtained vital signs data are within the preset warning threshold range. The warning threshold is set according to the medical standards and the specific conditions of the patient, and is used to determine whether the patient's vital signs are within the normal range. If not, an abnormal alarm is issued; if so, the patient's vital sign reference data is selected from the currently acquired vital sign data; the vital sign reference data includes heart rate, blood pressure, respiratory rate, blood oxygen saturation and body temperature; at the same time, the patient's GCS coma score is obtained. The GCS coma score is a method for evaluating the patient's state of consciousness. The score ranges from 3 to 15. The lower the score, the more severe the consciousness disorder. Based on the acquired vital sign reference data and the GCS coma score, the first risk rate of the patient is calculated;

[0054] Acquire biochemical indicator data at the current second monitoring time point; determine whether the acquired biochemical indicator data is within a preset warning threshold range, and if not, issue an abnormal warning; if so, extract the patient's biochemical indicator reference data from the currently acquired biochemical indicator data; the biochemical indicator reference data includes blood sugar, white blood cell count, C-reactive protein and hemoglobin; calculate and acquire the patient's second risk rate based on the acquired biochemical indicator reference data;

[0055] Calculate and obtain a comprehensive risk rate by using the obtained first risk rate and second risk rate;

[0056] Based on the maximum monitoring interval of the patient's vital signs data, the maximum monitoring interval of biochemical index data and the currently obtained comprehensive risk rate, the time intervals between the patient's next first monitoring time point and the second monitoring time point are determined respectively; this approach can effectively identify those situations that are not currently beyond the normal range but are close to the critical value; the advantage of this monitoring mechanism is that it can promptly detect subtle signs that the patient's physiological indicators may be about to change, thereby predicting the risk that the patient may develop abnormalities in the near future; through this early warning mechanism, medical staff can take preventive measures in advance, increase the monitoring frequency, and pay closer attention to changes in the patient's condition, so as to intervene before problems occur, effectively reduce the risk of complications, and ensure the safety and health of patients; this method not only improves the sensitivity and predictability of monitoring, but also helps to achieve more personalized and refined patient care.

[0057] Based on the obtained preoperative reference data and intraoperative reference data, the patient reference value is calculated and obtained. The specific operations are as follows:

[0058] For patient age A, set an upper age limit and minimum age If the patient is younger than or equal to , then the patient's age score is 0; if the patient's age A is greater than and less than , then use the formula Calculate the patient's age score ; If the patient's age A is greater than or equal to , then the patient's age score is 1;

[0059] Determine whether the patient has comorbidities. If so, the patient's comorbidity score If not, the patient's comorbidity score is 0;

[0060] Set an upper limit for the amount of bleeding during surgery B and lower limit of bleeding volume ; If the patient's intraoperative blood loss B is less than or equal to , then the patient's bleeding volume score If the patient's intraoperative bleeding volume B is greater than and less than , then use the formula Calculate the patient's bleeding volume score ; If the patient's intraoperative bleeding volume B is greater than or equal to , then the patient's bleeding volume score is 1;

[0061] Set an upper limit on the duration of surgery D and the minimum surgical time ; If the duration of surgery D is less than or equal to , then the patient's surgery time score is 0; if the operation duration D is greater than and less than , then use the formula Calculate the surgical time score ; If the duration of surgery D is greater than or equal to , then the patient's surgery time score is 1;

[0062] Based on the patient's age score obtained , patient comorbidity score , patient bleeding volume score and patient operation time score , using the formula Calculate and obtain patient reference values;

[0063] Based on the preset first adjustable range and second adjustable range, the maximum monitoring interval of the patient's vital signs data and the maximum monitoring interval of the biochemical index data are determined by using the obtained patient reference value. The specific operation is as follows: Set the first adjustable range to to ; Using the formula Calculate the maximum monitoring interval for obtaining the patient's vital signs data ; Set the second adjustable range to to ; Using the formula Calculate the maximum monitoring interval for obtaining the patient's biochemical index data .

[0064] Based on the obtained SCR values ​​and heartbeat intervals, the patient's emotion increase adjustment rate is calculated; the obtained emotion increase adjustment rate is used to adjust the heart rate warning threshold range, blood pressure warning threshold range and respiratory rate warning threshold range in the preset warning threshold range. The specific operations are as follows:

[0065] Set the SCR standard range to to ; Select the maximum SCR value among the obtained SCR values , using the formula Calculate the SCR peak ratio ; Calculate the mean of the SCR value , using the formula Calculate the SCR mean ratio ;

[0066] Set the RMSSD standard range to to , based on the obtained heartbeat interval , i=1, 2, ..., n; n represents the number of heartbeat intervals obtained in the current emotion evaluation time window; using the formula Calculate the patient's RMSSD value; then use the formula Calculate the RMSSD ratio of the patient ; Obtained SCR peak ratio , SCR mean ratio RMSSD value ratio The higher it is, the more intense the patient’s emotional state is;

[0067] Using the formula Calculate and obtain the increase adjustment rate, where x represents the maximum increase that can be adjusted for the heart rate warning threshold range, blood pressure warning threshold range, and respiratory rate warning threshold range under the influence of the patient's emotional state; here it can be set to 10% to 30%, depending on the patient's own situation;

[0068] The specific adjustment method of the warning threshold range is as follows: the heart rate warning threshold range is changed from the original to Adjust to to ; The blood pressure warning threshold range is changed from the original to Adjust to to ; The respiratory rate warning threshold range is changed from the original to Adjust to to .

[0069] Based on the acquired vital sign reference data and GCS coma score, the first risk rate of the patient is calculated. The specific operations are as follows:

[0070] Based on the heart rate warning threshold range for the currently acquired heart rate HR and , calculate and obtain the intermediate value ; Using the formula Calculate the heart rate risk value ;in, Heart rate index factor, used to control the heart rate risk value when the heart rate HR is close to the heart rate warning threshold range. growth rate;

[0071] Based on the blood pressure warning threshold range, the current blood pressure BP is obtained. and Calculate the intermediate value ; Using the formula Calculate blood pressure risk value ;in, It is a blood pressure index factor, which is used to control the blood pressure risk value when the blood pressure BP is close to the blood pressure warning threshold range. growth rate;

[0072] Based on the respiratory rate warning threshold range, the current respiratory rate RR is and , calculate and obtain the intermediate value , using the formula Calculate the respiratory rate risk value ;

[0073] Based on the currently acquired blood oxygen saturation SpO2, the warning threshold of blood oxygen saturation and normal threshold of blood oxygen saturation If the patient's blood oxygen saturation SpO2 is greater than or equal to , then the blood oxygen saturation risk value If the patient's blood oxygen saturation SpO2 is lower than and higher than , then use the formula Calculate the blood oxygen saturation risk value ;in, It is the blood oxygen index factor, which is used to control the blood oxygen saturation SpO2 risk value when it is close to the blood oxygen saturation warning threshold. growth rate;

[0074] Based on the temperature warning threshold range, the current body temperature T is and , calculate and obtain the intermediate value , using the formula Calculate the body temperature risk value ;

[0075] For the currently obtained GCS coma score, use the formula Normalize the GCS coma score to obtain the coma score risk value ;

[0076] Based on the heart rate risk value obtained , blood pressure risk value , respiratory rate risk value , blood oxygen saturation risk value , Body temperature risk value and coma score risk ; Using the formula Calculate the first risk rate .

[0077] Based on the obtained biochemical index reference data, the second risk rate of the patient is calculated. The specific operations are as follows:

[0078] Based on the blood sugar warning threshold range, the current blood sugar BG is obtained. and , calculate and obtain the intermediate value ; Using the formula Calculate blood sugar risk value ;in, It is the blood sugar index factor, which is used to control the blood sugar risk value when blood sugar BG is close to the blood sugar warning threshold range. growth rate;

[0079] Based on the current white blood cell count WBC, the warning threshold range of the white blood cell count and , calculate and obtain the intermediate value ; Using the formula Calculate the risk value of white blood cell count ;in, It is the white blood cell index factor, which is used to control the white blood cell count risk value when the white blood cell count WBC is close to the white blood cell count warning threshold range. growth rate;

[0080] For C-reactive protein (CPR), based on the normal threshold of C-reactive protein and C-reactive protein warning threshold If the patient's C-reactive protein CPR is less than or equal to , then the patient's C-reactive protein risk value is 0; if the patient's C-reactive protein is greater than and less than , then use the formula Calculate the risk value of C-reactive protein ; Where k is a constant of growth rate, which is used to control the risk value of C-reactive protein The speed of ascent;

[0081] Based on the hemoglobin Hb value currently obtained, the warning threshold range of hemoglobin and , calculate and obtain the intermediate value ; Using the formula Calculate the hemoglobin risk value ;in, It is the hemoglobin index factor, which is used to control the hemoglobin risk value when the hemoglobin Hb is close to the hemoglobin warning threshold range. growth rate;

[0082] Based on the obtained blood sugar risk value , White blood cell count risk value , C-reactive protein risk value and hemoglobin risk value , using the formula Calculate the second risk rate .

[0083] Calculate the comprehensive risk rate. The specific operations are as follows:

[0084] Based on the most recently obtained first risk rate and the second risk rate , using the formula Calculate the comprehensive risk rate R, where and are the weights of the first risk rate and the second risk rate, Less than , because biochemical indicators such as blood glucose, white blood cell count, C-reactive protein and hemoglobin can more sensitively reflect the patient's inflammatory response, infection risk and metabolic status, and have a greater impact on the patient's long-term health and the urgency of intervention; in addition, abnormalities in biochemical indicators may require more rapid medical intervention and may provide more critical information about the patient's pathological state, and therefore are given a higher weight in the comprehensive risk rate.

[0085] Based on the maximum monitoring interval of the patient's vital signs data, the maximum monitoring interval of the biochemical index data and the currently acquired comprehensive risk rate, the time interval between the patient's next first monitoring time point and the second monitoring time point is determined respectively. The specific operations are as follows:

[0086] Maximum monitoring interval based on the patient's vital signs data and the most recently obtained comprehensive risk rate R, the time interval for the next first monitoring time From 0 to The specific adjustment formula is: ;

[0087] Maximum monitoring interval based on the patient's biochemical index data and the most recently obtained comprehensive risk rate R, the time interval for the next second monitoring time exist arrive Adjustments are made within, among which, is the preset minimum monitoring interval of biochemical index data, and the specific adjustment formula is: ; This is because the detection of biochemical indicators is different from the direct acquisition of vital signs data. Biochemical indicator data usually requires the collection of blood samples and analysis in a laboratory environment; frequent biochemical indicator testing will increase the burden on the medical system, including human, material and financial resources, and is not realistic; at the same time, frequent blood tests will cause physical discomfort and psychological pressure on patients; setting a minimum monitoring interval can reduce invasive operations on patients and improve patient comfort and satisfaction;

[0088] Embodiment 2, a neurovascular surgery patient safety monitoring system, such as Figure 1 As shown, including:

[0089] The maximum monitoring interval calculation module includes a patient reference value calculation unit, a first calculation unit, and a second calculation unit; the patient reference value calculation unit is used to obtain the patient's preoperative reference data and intraoperative reference data, and calculate the patient reference value based on the obtained preoperative reference data and intraoperative reference data; the first calculation unit is used to determine the patient's vital sign data maximum monitoring interval according to the obtained patient reference value; the second calculation unit is used to determine the biochemical index data maximum monitoring interval according to the obtained patient reference value;

[0090] The data monitoring module includes an emotion assessment unit, a vital sign data monitoring unit and a biochemical index data monitoring unit; the emotion assessment unit is used to calculate the patient's emotion increase adjustment rate, and use the obtained emotion increase adjustment rate to adjust the heart rate warning threshold range, blood pressure warning threshold range and respiratory rate warning threshold range in the preset warning threshold range; the vital sign data monitoring unit is used to obtain vital sign data at the current first monitoring time point, and determine whether the obtained vital sign data is within the adjusted warning threshold range, and if not, issue an abnormal alarm; the biochemical index data monitoring unit is used to obtain biochemical index data at the current second monitoring time point; determine whether the obtained biochemical index data is within the preset warning threshold range, and if not, issue an abnormal alarm;

[0091] The monitoring time adjustment module comprises a first risk rate calculation unit, a second risk rate calculation unit, a comprehensive risk rate calculation unit, a first adjustment unit and a second adjustment unit; the first risk rate calculation unit is used to select the patient's vital sign reference data from the currently acquired vital sign data; at the same time, the patient's GCS coma score is acquired, and the patient's first risk rate is calculated based on the acquired vital sign reference data and the GCS coma score; the second risk rate calculation unit is used to extract the patient's biochemical index reference data from the currently acquired biochemical index data; based on the acquired biochemical index reference data, the patient's second risk rate is calculated; the comprehensive risk rate calculation unit is used to calculate the comprehensive risk rate through the acquired first risk rate and the second risk rate; the first adjustment unit is used to determine the time interval of the patient's next first monitoring time point according to the patient's maximum monitoring interval of the vital sign data and the currently acquired comprehensive risk rate; the second adjustment unit is used to determine the time interval of the patient's next second monitoring time point according to the patient's maximum monitoring interval of the biochemical index data and the currently acquired comprehensive risk rate.

[0092] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all such improvements and changes should fall within the scope of protection of the appended claims of the present invention. Parts not described in detail in this specification belong to the prior art known to those skilled in the art.

Claims

1. A method for monitoring the safety of patients after neurovascular surgery, characterized in that: include: Obtain the patient's preoperative and intraoperative reference data, including comorbidity data and age data; Intraoperative reference data included intraoperative blood loss data and operation duration; Based on the obtained preoperative reference data and intraoperative reference data, the patient reference value is calculated; Based on the preset first adjustable range and the second adjustable range, the maximum monitoring interval of the patient's vital sign data and the maximum monitoring interval of the biochemical index data are determined using the acquired patient reference value; An emotion assessment time window is set, and the end time of the emotion assessment time window is the first monitoring time point; within the emotion assessment time window, the patient's skin electrical response SCR and heart rate are measured, and the patient's emotion increase adjustment rate is calculated based on the obtained SCR values ​​and heartbeat intervals; the obtained emotion increase adjustment rate is used to adjust the heart rate warning threshold range, blood pressure warning threshold range and respiratory rate warning threshold range in the preset warning threshold range; vital sign data are obtained at the current first monitoring time point to determine whether the obtained vital sign data is within the adjusted warning threshold range, and if not, an abnormal alarm is issued; if so, the patient's vital sign reference data is selected from the currently obtained vital sign data; the vital sign reference data includes heart rate, blood pressure, respiratory rate, blood oxygen saturation and body temperature; at the same time, the patient's GCS coma score is obtained, and the first risk rate of the patient is calculated based on the obtained vital sign reference data and the GCS coma score; Acquire biochemical index data at the current second monitoring time point; determine whether the acquired biochemical index data is within a preset warning threshold range, and if not, issue an abnormal warning; if so, extract the patient's biochemical index reference data from the currently acquired biochemical index data; The biochemical index reference data include blood sugar, white blood cell count, C-reactive protein and hemoglobin; based on the obtained biochemical index reference data, the second risk rate of the patient is calculated; Calculate and obtain a comprehensive risk rate by using the obtained first risk rate and second risk rate; Based on the currently acquired comprehensive risk rate, adjusting the time interval of the patient's next first monitoring time point within the maximum monitoring interval of the patient's vital sign data; At the same time, based on the comprehensive risk rate, the time interval of the patient's next second monitoring time point is adjusted within the maximum monitoring interval of the patient's biochemical indicator data; the time interval of the next first monitoring time point and the time interval of the next second monitoring time point are used to obtain the next vital signs data and biochemical indicator data respectively.

2. A method for monitoring the safety of patients after neurovascular surgery according to claim 1, characterized in that: Based on the acquired preoperative reference data and intraoperative reference data, the patient reference value is calculated and acquired; based on the preset first adjustable range and second adjustable range, the acquired patient reference value is used to determine the patient's maximum monitoring interval of vital sign data and the maximum monitoring interval of biochemical index data. The specific operations are as follows: For patient age A, set an upper age limit and minimum age If the patient is younger than or equal to , then the patient's age score is 0; if the patient's age A is greater than and less than , then use the formula Calculate the patient's age score ; If the patient's age A is greater than or equal to , then the patient's age score is 1; Determine whether the patient has comorbidities. If so, the patient's comorbidity score If not, the patient's comorbidity score is 0; Set an upper limit for the amount of bleeding during surgery B and lower limit of bleeding volume ; If the patient's intraoperative blood loss B is less than or equal to , then the patient's bleeding volume score If the patient's intraoperative bleeding volume B is greater than and less than , then use the formula Calculate the patient's bleeding volume score ; If the patient's intraoperative blood loss B is greater than or equal to , then the patient's bleeding volume score is 1; Set an upper limit on the duration of surgery D and the minimum surgical time ; If the duration of surgery D is less than or equal to , then the patient's surgery time score is 0; if the operation duration D is greater than and less than , then use the formula Calculate the surgical time score ; If the duration of surgery D is greater than or equal to , then the patient's surgery time score is 1; Based on the patient's age score obtained , patient comorbidity score , patient bleeding volume score and patient operation time score , using the formula Calculate and obtain patient reference values; Set the first adjustable range to to ; Using the formula Calculate the maximum monitoring interval for obtaining the patient's vital signs data ; Set the second adjustable range to to ; Using the formula Calculate the maximum monitoring interval for obtaining the patient's biochemical index data .

3. A method for monitoring patient safety after neurovascular surgery according to claim 2, characterized in that: Based on the obtained SCR values ​​and heartbeat intervals, the patient's emotion increase adjustment rate is calculated; the obtained emotion increase adjustment rate is used to adjust the heart rate warning threshold range, blood pressure warning threshold range and respiratory rate warning threshold range in the preset warning threshold range. The specific operations are as follows: Set the SCR standard range to to ; Select the maximum SCR value among the obtained SCR values , using the formula Calculate the SCR peak ratio ; Calculate the mean of the SCR values , using the formula Calculate the SCR mean ratio ; Set the RMSSD standard range to to , based on the obtained heartbeat interval , i=1, 2, ..., n; n represents the number of heartbeat intervals obtained in the current emotion evaluation time window; using the formula Calculate the patient's RMSSD value; then use the formula Calculate the RMSSD ratio of the patient ; Obtained SCR peak ratio , SCR mean ratio RMSSD value ratio The higher it is, the more intense the patient’s emotional state is; Using the formula Calculate and obtain the increase adjustment rate, where x represents the maximum increase that can be adjusted for the heart rate warning threshold range, the blood pressure warning threshold range, and the respiratory rate warning threshold range under the influence of the patient's emotional state; The specific adjustment method of the warning threshold range is as follows: the heart rate warning threshold range is changed from the original to Adjust to to ; The blood pressure warning threshold range is changed from the original to Adjust to to ; The respiratory rate warning threshold range is changed from the original to Adjust to to .

4. A method for monitoring patient safety after neurovascular surgery according to claim 3, characterized in that: Based on the acquired vital sign reference data and GCS coma score, the first risk rate of the patient is calculated. The specific operations are as follows: Based on the heart rate warning threshold range for the currently acquired heart rate HR and , calculate and obtain the intermediate value ; Using the formula Calculate the heart rate risk value ;in, Heart rate index factor, used to control the heart rate risk value when the heart rate HR is close to the heart rate warning threshold range. growth rate; Based on the blood pressure warning threshold range, the current blood pressure BP is obtained. and Calculate the intermediate value ; Using the formula Calculate blood pressure risk value ;in, It is a blood pressure index factor, which is used to control the blood pressure risk value when the blood pressure BP is close to the blood pressure warning threshold range. growth rate; Based on the respiratory rate warning threshold range, the current respiratory rate RR is and , calculate and obtain the intermediate value , using the formula Calculate the respiratory rate risk value ; Based on the currently acquired blood oxygen saturation SpO2, the warning threshold of blood oxygen saturation and normal threshold of blood oxygen saturation If the patient's blood oxygen saturation SpO2 is greater than or equal to , then the blood oxygen saturation risk value If the patient's blood oxygen saturation SpO2 is lower than and higher than , then use the formula Calculate the blood oxygen saturation risk value ;in, It is the blood oxygen index factor, which is used to control the blood oxygen saturation SpO2 risk value when it is close to the blood oxygen saturation warning threshold. growth rate; Based on the temperature warning threshold range, the current body temperature T is and , calculate and obtain the intermediate value , using the formula Calculate the body temperature risk value ; For the currently obtained GCS coma score, use the formula Normalize the GCS coma score to obtain the coma score risk value ; Based on the heart rate risk value obtained , blood pressure risk value , respiratory rate risk value , blood oxygen saturation risk value , Body temperature risk value and coma score risk ; Using the formula Calculate the first risk rate .

5. A method for monitoring patient safety after neurovascular surgery according to claim 4, characterized in that: Based on the obtained biochemical index reference data, the second risk rate of the patient is calculated. The specific operations are as follows: Based on the blood sugar warning threshold range, the current blood sugar BG is obtained. and , calculate and obtain the intermediate value ; Using the formula Calculate blood sugar risk value ;in, It is the blood sugar index factor, which is used to control the blood sugar risk value when blood sugar BG is close to the blood sugar warning threshold range. growth rate; Based on the current white blood cell count WBC, the warning threshold range of the white blood cell count and , calculate and obtain the intermediate value ; Using the formula Calculate the risk value of white blood cell count ;in, It is the white blood cell index factor, which is used to control the white blood cell count risk value when the white blood cell count WBC is close to the white blood cell count warning threshold range. growth rate; For C-reactive protein (CPR), based on the normal threshold of C-reactive protein and C-reactive protein warning threshold If the patient's C-reactive protein CPR is less than or equal to , then the patient's C-reactive protein risk value is 0; if the patient's C-reactive protein is greater than and less than , then use the formula Calculate the risk value of C-reactive protein ; Where k is a constant of growth rate, which is used to control the risk value of C-reactive protein The speed of ascent; Based on the hemoglobin Hb value currently obtained, the warning threshold range of hemoglobin and , calculate and obtain the intermediate value ; Using the formula Calculate the hemoglobin risk value ;in, It is the hemoglobin index factor, which is used to control the hemoglobin risk value when the hemoglobin Hb is close to the hemoglobin warning threshold range. growth rate; Based on the obtained blood sugar risk value , White blood cell count risk value , C-reactive protein risk value and hemoglobin risk value , using the formula Calculate the second risk rate .

6. A method for monitoring patient safety after neurovascular surgery according to claim 5, characterized in that: Calculate the comprehensive risk rate. The specific operations are as follows: Based on the most recently obtained first risk rate and the second risk rate , using the formula Calculate the comprehensive risk rate R, where and are the weights of the first risk rate and the second risk rate, Less than .

7. A method for monitoring patient safety after neurovascular surgery according to claim 6, characterized in that: Based on the currently acquired comprehensive risk rate, the time interval of the patient's next first monitoring time point is adjusted within the maximum monitoring interval of the patient's vital signs data; at the same time, based on the comprehensive risk rate, the time interval of the patient's next second monitoring time point is adjusted within the maximum monitoring interval of the patient's biochemical index data. The specific operations are as follows: Maximum monitoring interval based on the patient's vital signs data and the most recently obtained comprehensive risk rate R, the time interval for the next first monitoring time From 0 to The specific adjustment formula is: ; Maximum monitoring interval based on the patient's biochemical index data and the most recently obtained comprehensive risk rate R, the time interval for the next second monitoring time exist arrive Adjustments are made within, among which, is the preset minimum monitoring interval of biochemical index data, and the specific adjustment formula is: .

8. A postoperative neurovascular patient safety monitoring system, characterized in that: The system is applied to the method for monitoring patient safety after neurovascular surgery as described in any one of claims 1 to 7, comprising: The maximum monitoring interval calculation module includes a patient reference value calculation unit, a first calculation unit, and a second calculation unit; the patient reference value calculation unit is used to obtain the patient's preoperative reference data and intraoperative reference data, and calculate the patient reference value based on the obtained preoperative reference data and intraoperative reference data; the first calculation unit is used to determine the patient's vital sign data maximum monitoring interval according to the obtained patient reference value; the second calculation unit is used to determine the biochemical index data maximum monitoring interval according to the obtained patient reference value; The data monitoring module includes an emotion assessment unit, a vital sign data monitoring unit and a biochemical index data monitoring unit; the emotion assessment unit is used to calculate the patient's emotion increase adjustment rate, and use the obtained emotion increase adjustment rate to adjust the heart rate warning threshold range, blood pressure warning threshold range and respiratory rate warning threshold range in the preset warning threshold range; the vital sign data monitoring unit is used to obtain vital sign data at the current first monitoring time point, and determine whether the obtained vital sign data is within the adjusted warning threshold range, and if not, issue an abnormal alarm; the biochemical index data monitoring unit is used to obtain biochemical index data at the current second monitoring time point; determine whether the obtained biochemical index data is within the preset warning threshold range, and if not, issue an abnormal alarm; The monitoring time adjustment module comprises a first risk rate calculation unit, a second risk rate calculation unit, a comprehensive risk rate calculation unit, a first adjustment unit and a second adjustment unit; the first risk rate calculation unit is used to select the patient's vital sign reference data from the currently acquired vital sign data; at the same time, the patient's GCS coma score is acquired, and the patient's first risk rate is calculated based on the acquired vital sign reference data and the GCS coma score; the second risk rate calculation unit is used to extract the patient's biochemical index reference data from the currently acquired biochemical index data; based on the acquired biochemical index reference data, the patient's second risk rate is calculated; the comprehensive risk rate calculation unit is used to calculate the comprehensive risk rate through the acquired first risk rate and the second risk rate; the first adjustment unit is used to determine the time interval of the patient's next first monitoring time point according to the patient's maximum monitoring interval of the vital sign data and the currently acquired comprehensive risk rate; the second adjustment unit is used to determine the time interval of the patient's next second monitoring time point according to the patient's maximum monitoring interval of the biochemical index data and the currently acquired comprehensive risk rate.

Images