نتایج جستجو برای: positive expiratory pressure
تعداد نتایج: 1047041 فیلتر نتایج به سال:
PURPOSE OF REVIEW The aim of this article is to describe the physiologic utility, correlation with lung morphology, difficulties in interpretation and current clinical applications of static respiratory system pressure-volume curves at the bedside in patients with acute lung injury or acute respiratory distress syndrome. RECENT FINDINGS Complex interpretation of pressure-volume curves indicat...
In paralyzed anesthetized dogs the cardiovascular effects of increasing positive end-expiratory pressure (PEEP) were explored under two conditions: a) end-expiratory lung volume increasing, b) end-expiratory lung volume kept nearly constant by matching pleural pressure rise to end-expiratory airway pressure rise. Two series of experiments were done: I) xenous return was allowed to fall, II) ven...
OBJECTIVE To investigate whether the response to sustained inflation and postinflation positive end-expiratory pressure varies between acute respiratory distress syndrome with pulmonary (ARDS(exp)) and extrapulmonary origin (ARDS(exp)). DESIGN Prospective clinical study. SETTING Multidisciplinary intensive care unit in a university hospital. PATIENTS A total of 11 patients with ARDS and 1...
OBJECTIVE The open lung approach is a mechanical ventilation strategy involving lung recruitment and a decremental positive end-expiratory pressure trial. We compared the Acute Respiratory Distress Syndrome network protocol using low levels of positive end-expiratory pressure with open lung approach resulting in moderate to high levels of positive end-expiratory pressure for the management of e...
Including positive end-expiratory pressure (PEEP) in the manual resuscitation bag (MRB) may render manual hyperinflation (MHI) ineffective as a secretion maneuver technique in mechanically ventilated patients. In this study we aimed to determine the effect of increased PEEP or decreased compliance on peak expiratory flow rate (PEF) during MHI. A blinded, randomized study was performed on a lung...
INTRODUCTION — Conventional mechanical ventilation refers to the delivery of full or partial ventilatory support by a volume-cycled mechanical ventilator or by pressure support. It also can include the maintenance of positive airway pressure at the end of exhalation, ie, positive end-expiratory pressure (PEEP) [1]. (See "Physiologic and pathophysiologic consequences of positive pressure ventila...
Background Pulmonary involvement is the main cause of mortality in cystic fibrosis (CF). Airway clearance techniques are non-pharmacological complement options for CF patients. The aim of this study was to evaluate the short-term outcome of airway cleaning treatment in patients with cystic fibrosis in a children's hospital. Materials and Methods This clinical trial study conducted on 40 CF pati...
The purpose of this study was to register breathing patterns, in healthy subjects, during breathing with a positive expiratory pressure. Integrated electromyographic (IEMG) activity of the following muscles was assessed: scalene muscle, parasternal muscle and abdominal muscles, using surface electrodes. Inspiration time, expiration time, total breathing cycle time, tidal volume and breathing fr...
BACKGROUND In the intensive care unit we have observed that patients have different adherence to 2 commonly used positive-expiratory-pressure (PEP) therapy devices: the PEP bottle and the PEP mask. The reason for this difference is not clear. METHODS In a randomized prospective study, we made continuous recordings of airway pressure and airflow, with 20 healthy volunteers, with the PEP bottle...
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