منابع مشابه
Pulse 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 کاملInfluence 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 کاملAssessment of Pericardium Volume by the Stroke Volume Variation in Patients with Off-Pump Cardiac Surgery
Objective: SVV is derived from the cardiopulmonary interaction, which is used to predict the responsiveness of cardiac preload guiding fluid therapy in patients under general anesthesia in non-opened chest surgery. From a clinical point of view, it is important to know how well SVV reflects preload and fluid responsiveness during cardiac surgery. This study was undertaken to assess the accuracy...
متن کاملA simple physiologic algorithm for managing hemodynamics using stroke volume and stroke volume variation: physiologic optimization program.
Intravascular volume status and volume responsiveness continue to be important questions for the management of critically ill or injured patients. Goal-directed hemodynamic therapy has been shown to be of benefit to patients with severe sepsis and septic shock, acute lung injury and adult respiratory distress syndrome, and for surgical patients in the operating room. Static measures of fluid st...
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....
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ژورنال
عنوان ژورنال: British Journal of Anaesthesia
سال: 2015
ISSN: 0007-0912
DOI: 10.1093/bja/aeu474