Ventilation: Theory and Practice

Background: To examine the influence of positive end-expiratory pressure (PEEP) settings on lung mechanics and oxygenation in elderly patients undergoing thoracoscopic

LUS: Lung ultrasound; IMV: Invasive mechanical ventilation; ARDS: Acute respiratory distress syndrome; PEEP: Positive end-expiratory pressure; ICU: Intensive care unit;

ARDS: acute respiratory distress syndrome; PaO 2 : partial pressure of oxygen; PaCO 2 : partial pressure of carbon dioxide; PEEP: positive end‑expiratory pres‑ sure; LPV:

ARDS: acute respiratory distress syndrome; EELV: end‑expiratory lung volume; FRC: functional residual capacity; PEEP: positive end‑expiratory pressure; PP: prone position;

2 Representative tracings of mean airway pressure (mPaw), plateau pressure (Pplat), total positive expiratory pressure (PEEP tot ), esophageal pressure (Pes) and

The first volume point of the PEEP pressure–volume curve therefore corresponds to the increase in end-expiratory lung volume induced by PEEP (i.e. the difference in end-expiratory

ALI, acute lung injury; ARDS, acute respiratory distress syndrome; EELV, end- expiratory lung volume; PEEP, positive end-expiratory pressure; VILI, ventilator- induced lung injury;

sure of carbon dioxide; PEEP: positive end-expiratory pressure; PEEPt: total positive end-expiratory pressure; PET: positron emission tomography; PO 2 : partial pressure of