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Fig. 3 | Critical Care

Fig. 3

From: A novel capnogram analysis to guide ventilation during cardiopulmonary resuscitation: clinical and experimental observations

Fig. 3

Reproduction of CO2 patterns on Thiel cadaver model: illustration in one cadaver. From top to bottom recordings of flow at airway opening (Flow), airway pressure (Paw), esophageal pressure (Peso) and expired CO2 (CO2). The tilted line on the Paw tracing represents the airway opening pressure (AOP). The recording is divided into three configurations: (1) Regular pattern: positive end-expiratory pressure (PEEP) was set above the AOP to simulate airway patency. (2) Intrathoracic airway closure: PEEP was set below the AOP to simulate airway closure. (3) Thoracic distension: PEEP was set above the AOP to simulate airway patency, and peak airway pressure set on the ventilator was increased to generate higher tidal volumes compared to step 1

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Critical Care

ISSN: 1364-8535