Systems and methods to determine patient's responsiveness to alveolar recruitment maneuver

Abstract

A system and method for determining a potential lung recruitment value for a patient that includes during an applied first positive end expiratory pressure (PEEP) to the lungs of the patient, measuring a first end expiratory lung impedance (EELZ) of the lungs at the first PEEP; during an applied second PEEP, measuring a second EELZ at the second PEEP, determining a change in EELZ between the firstPEEP and the second PEEP, determining a first chord-compliance of the lungs from pixels of a first electrical impedance tomography (EIT) image of the patient at the first PEEP, determining a second chord-compliance from a second EIT image of the patient at the second PEEP, determining a first index representing the change in EELZ, determining a second index representing a change in compliance, and based on the first index and the second index, determining a potential lung recruitment value for the patient.

Description

[0001] priority claim [0002] This application claims the benefit of U.S. Provisional Patent Application Serial No. 62 / 629,466, filed February 12, 2018, the disclosure of which is hereby incorporated by reference in its entirety under 35 U.S.C. § 119(e) way incorporated into this article. technical field [0003] The present disclosure relates to systems and methods for determining a patient's recruitment potential of a patient's lung volume through an alveolar recruitment procedure. In particular, the present disclosure relates to systems and methods that include and utilize electrical impedance tomography (EIT) systems to determine a patient's recruitment potential. Background technique [0004] Treatment of acute respiratory distress syndrome ("ARDS") includes an appropriate strategy of mechanical ventilation. Alveolar Recruitment Manipulation ("ARM") is an intervention applied in cases of moderate to severe ARDS. ARM is a temporary and controlled increase in mechanic...

AI Technical Summary

Problems solved by technology

However, CT provides only static images, requires the use of excess radiation (the entire lung must be scanned at at least two different PEEP levels), and it requires long inspiratory / expiratory pauses (with hypercapnia and hemodynamic risk of weakening)

Finally, patients must be transported from the ICU to the radiology department, which presents well-known risks

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