Influence of tidal volume on pulse pressure variation and stroke volume variation during experimental intra-abdominal hypertension
نویسندگان
چکیده
منابع مشابه
Influence of tidal volume on pulse pressure variation and stroke volume variation during experimental intra-abdominal hypertension
BACKGROUND Pulse pressure variation (PPV) and stroke volume variation (SVV) are frequently used to assess fluid responsiveness in critically ill patients on mechanical ventilation (MV). There are many factors, in addition to preload that influence the magnitude of these cyclic variations. We sought to investigate the effect of tidal volume (V(T)) on PPV and SVV, and prediction of fluid responsi...
متن کاملPulse pressure variation and stroke volume variation during increased intra-abdominal pressure: an experimental study
INTRODUCTION The aim of this study was to evaluate dynamic indices of fluid responsiveness in a model of intra-abdominal hypertension. METHODS Nine mechanically-ventilated pigs underwent increased intra-abdominal pressure (IAP) by abdominal banding up to 30 mmHg and then fluid loading (FL) at this IAP. The same protocol was carried out in the same animals made hypovolemic by blood withdrawal....
متن کاملPulse pressure variation, stroke volume variation and dynamic arterial elastance
Which means that SVV (%) ≈ pulse pressure variation (PPV; %) for FloTracTM. With the present mathematical equation, it can be demonstrated that the SVV calculated by FloTracTM (SVVFT) is not infl uenced by Khi, which means that SVVFT calculation does not include eff ective arterial elastance (Ea). Th e originality of Garcia and colleagues’ fi nding is that they realized that when measuring PPV ...
متن کاملPulse pressure variation and volume responsiveness during acutely increased pulmonary artery pressure: an experimental study
INTRODUCTION We found that pulse pressure variation (PPV) did not predict volume responsiveness in patients with increased pulmonary artery pressure. This study tests the hypothesis that PPV does not predict fluid responsiveness during an endotoxin-induced acute increase in pulmonary artery pressure and right ventricular loading. METHODS Pigs were subjected to endotoxemia (0.4 microg/kg/hour ...
متن کاملPulse pressure variation and stroke volume variation to predict fluid responsiveness in patients undergoing carotid endarterectomy
BACKGROUND During carotid endarterectomy (CEA), hemodynamic stability and adequate fluid management are crucial to prevent perioperative cerebral stroke, myocardial infarction and hyperperfusion syndrome. Both pulse pressure variation (PPV) and stroke volume variation (SVV), dynamic preload indices derived from the arterial waveform, are increasingly advocated as predictors of fluid responsiven...
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ژورنال
عنوان ژورنال: BMC Anesthesiology
سال: 2015
ISSN: 1471-2253
DOI: 10.1186/s12871-015-0105-x