Changes in computed tomography and ventilation/perfusion mismatch with positive end-expiratory pressure
نویسندگان
چکیده
منابع مشابه
Compressive forces and computed tomography-derived positive end-expiratory pressure in acute respiratory distress syndrome.
BACKGROUND It has been suggested that higher positive end-expiratory pressure (PEEP) should be used only in patients with higher lung recruitability. In this study, the authors investigated the relationship between the recruitability and the PEEP necessary to counteract the compressive forces leading to lung collapse. METHODS Fifty-one patients with acute respiratory distress syndrome (7 mild...
متن کاملPositive end-expiratory pressure.
PURPOSE OF REVIEW In the last 2 years, several reports have dealt with recruitment/positive end-expiratory pressure (PEEP) selection. Most of them confirm previous results and few add new information. RECENT FINDINGS It has been definitely confirmed that opening pressures are different throughout the acute respiratory distress syndrome lung parenchyma, ranging from 5-10 up to 30-40 cmH2O. The...
متن کاملChanges in canine left ventricular size and configuration with positive end-expiratory pressure.
Previous studies have shown that left atrial pressure increases when measured relative to pleura! pressure during positive end-expiratory pressure (PEEP). We studied the factors leading to this increase in anesthetized mechanically ventilated dogs. Cardiac output was maintained nearly constant before and during PEEP, and heart rate did not change. Left atrial pressure measured relative to pleur...
متن کاملInteraction Between Intra-Abdominal Pressure and Positive-End Expiratory Pressure
OBJECTIVE The aim of this study was to quantify the interaction between increased intra-abdominal pressure and Positive-End Expiratory Pressure. METHODS In 30 mechanically ventilated ICU patients with a fixed tidal volume, respiratory system plateau and abdominal pressure were measured at a Positive-End Expiratory Pressure level of zero and 10 cm H2O. The measurements were repeated after plac...
متن کاملResponse of Maximum Inspiratory Pressure and Functional Capacity to Positive End-Expiratory Pressure Device after Valvular Heart Surgery
Background: Pulmonary complications following valvular heart surgery are common and contribute to increased duration of hospital stay, rate of morbidity, and mortality. The purpose of the present study was to investigate the response of maximum inspiratory pressure and functional capacity to Positive End-Expiratory Pressure device in patients who underwent valvular hea...
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ژورنال
عنوان ژورنال: Critical Care
سال: 2014
ISSN: 1364-8535
DOI: 10.1186/cc13466