<b>Determinação da variação da pressão de pulso em equinos anestesiados com isofluorano e mecanicamente ventilados submetidos à reposição volêmica</b>

Abstract

PIMENTA, E. L. M. Pulse pressure variation in mechanical ventilated isoflurane anesthetized horses submitted to fluid challenge. [Determinação da variação da pressão de pulso em equinos anestesiados com isofluorano e mecanicamente ventilados submetidos à reposição volêmica]. 2016. 82 f. Tese (Doutorado em Ciências)

Effect of alveolar recruitment maneuver on pulse pressure variation: a case report

“…due to muscle fatigue, in addition to enabling specific therapeutic procedures 1. The recruitment maneuver is one of the procedures in mechanical ventilation capable of increasing the lung surface and opening previously collapsed alveolar units through the use of high pressure levels in the respiratory system for short periods of time, which can be performed with progressive increases in PEEP. 2. One of the most used PEEP strategies today is the Open Lung Approach (OLA) which aims to find the individualized PEEP that promotes the best Static Compliance of the Respiratory System ( Csr ) or the best Elastance of the Respiratory System ( Esr ) 3. However, high levels of PEEP can reduce venous return and increase pulmonary vascular resistance, in addition to significant cardiac impairment 4. In this regard, hemodynamic monitoring becomes essential to quantify cardiovascular responses, especially in patients under invasive ventilatory support, due to the fact that variables such as heart rate, cardiac output, systolic blood pressure, diastolic blood pressure, venous return, among others they will be subject to changes as a result of the underlying pathology 6 and the effects of MV 14. Thus, the verification of the Pulse Pressure Variation (PPV) becomes important, because in addition to assessing responsiveness to fluid therapy, it also has significance in predicting hemodynamic effects of therapies using PEEP 5 . The aim of this study was to verify the effects of the alveolar recruitment maneuver on pulse pressure variation in mechanically ventilated patients.…”