Pulseless electrical activity (PEA) detection method

Abstract

A pulseless electrical activity (PEA) detection method comprises the steps of: detecting a heart electrical activity signal, detecting a common carotid artery blood flow signal, and judging PEA based on the heart electrical activity signal and the common carotid artery blood flow signal. Meanwhile, common carotid artery blood flow parameters and electrocardiosignals serve as factors for comprehensively evaluating the PEA; the electrocardiosignals and blood flow signals associated with the electrocardiosignals in time can be analyzed in real time; the accuracy of PEA judgment based on the basis is high; time delay is small; besides, an ultrasonic Doppler blood flow detection module is used for testing the real condition of blood flow; hand touch type or induction type pulse measurement is replaced; the measurement result is real; and PEA judgment can be more effectively assisted.

Description

technical field [0001] The present invention relates to the technical field of medical detection equipment, in particular to a PEA detection method and device for pulseless electrical activity. Background technique [0002] PEA (Pulseless electrical activity), that is, pulseless electrical activity, also known as electromechanical dissociation, generally refers to the normal electrical activity of the heart, but there is no corresponding mechanical activity, unable to generate enough blood pressure to touch the arterial pulse. In patients with cardiac arrest, the incidence of PEA is gradually increasing, while the success rate of PEA rescue is very low. [0003] PEA is usually divided into two categories: one is true PEA, which means that the heart does not have any mechanical contraction function and cannot produce any arterial pulse; the other is pseudo-PEA, which means that the heart has certain mechanical activities, but due to other reasons, The mechanical activity is ...

AI Technical Summary

Problems solved by technology

However, most of the traditional detection methods are currently used in clinical practice: (1) After judging the loss of consciousness in the physical examination, the carotid artery fluctuations disappear and there is no breathing by hand-touch detection, that is, it is judged as a pulseless state. There are nearly 50% misdiagnosis of pulse detection by touch, and the use of pressure, infrared, laser, photoplethysmography (PPG) and other methods can only measure the number of pulses, and cannot measure the real situation of the pulse (autonomous or not); ( 2) Through electrocardiogram detection, as long as the electrocardiogram shows that there is electrocardiographic activity and the electrocardiogram is still there, it is not judged as cardiac arrest, which may delay the timing of resuscitation

On the one hand, the existing clinical technology cannot accurately judge the pulse condition; on the other hand, only relying on the results of electrocardiogram (such as ECG) to judge PEA may cause misjudgment and delay the timing of treatment

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