Pulse pressure variation

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Influence of tidal volume on pulse pressure variation and stroke volume variation during experimental intra-abdominal hypertension

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.

10p viisaacnewton 25-04-2022 14 2 Download

Fluid management guided by a continuous non-invasive arterial pressure device is associated with decreased postoperative morbidity after total knee and hip replacement

The use of goal directed fluid protocols in intermediate risk patients undergoing hip or knee replacement was studied in few trials using invasive monitoring. For this reason we have implemented two different fluid management protocols, both based on a novel totally non-invasive arterial pressure monitoring device and compared them to the standard (no-protocol) treatment applied before the transition in our academic institution.

10p viisaacnewton 25-04-2022 8 2 Download

Slope analysis for the prediction of fluid responsiveness by a stepwise PEEP elevation recruitment maneuver in mechanically ventilated patients

Assessment of fuid responsiveness is problematic in intensive care unit patients. Lung recruitment maneuvers (LRM) can be used as a functional test to predict fuid responsiveness. We propose a new test to predict fuid responsiveness in mechanically ventilated patients by analyzing the variations in central venous pressure (CVP) and systemic arterial parameters during a prolonged sigh breath LRM without the use of a cardiac output measuring device.

12p viisaacnewton 26-04-2022 14 1 Download
Non-invasive detection of hypovolemia or fluid responsiveness in spontaneously breathing subjects

In the assessment of hypovolemia the value of functional hemodynamic monitoring during spontaneous breathing is debated. The aim of our study was to investigate in spontaneously breathing subjects the changes in hemodynamic parameters during graded central hypovolemia and to test whether slow patterned breathing improved the discriminative value of stroke volume (SV), pulse pressure (PP), and their variations (SVV, PPV). In addition, we tested the alterations in labial microcirculation.

8p viisaacnewton 26-04-2022 9 1 Download
The increase of vasomotor tone avoids the ability of the dynamic preload indicators to estimate fluid responsiveness

The use of vasoconstrictor can affect the dynamic indices to predict fluid responsiveness. We investigate the effects of an increase of vascular tone on dynamic variables of fluid responsiveness in a rabbit model of hemorrhage, and to examine the ability of the arterial pressure surrogates dynamic indices to track systolic volume variation (SVV) during hypovolemia under increased vasomotor tone.

9p viisaacnewton 26-04-2022 9 1 Download
A pragmatic multi-center trial of goaldirected fluid management based on pulse pressure variation monitoring during highrisk surgery

Intraoperative fluid therapy guided by mechanical ventilation-induced pulse-pressure variation (PPV) may improve outcomes after major surgery. We tested this hypothesis in a multi-center study.

10p viottohahn 30-03-2022 4 1 Download
Pulmonary hypertension attenuates the dynamic preload indicators increase during experimental hypovolemia

Pulse pressure (PPV) and stroke volume (SVV) variations may not be reliable in the setting of pulmonary hypertension and/or right ventricular (RV) failure. We hypothesized that RV afterload increase attenuates SVV and PPV during hypovolemia in a rabbit model of pulmonary embolism (PE) secondary to RV dysfunction.

8p viottohahn 30-03-2022 8 1 Download
Pulse pressure variation shows a direct linear correlation with tidal volume in anesthetized healthy patients

The settings of mechanical ventilation, like tidal volume (VT), occasionally need to be adjusted in the process of anesthesia for some special reasons. The aim of this study was therefore to assess the relationship between pulse pressure variations (PPVs) in different settings of VT in anesthetized healthy patients under mechanical ventilation.

7p viottohahn 30-03-2022 14 1 Download
Can a central blood volume deficit be detected by systolic pressure variation during spontaneous breathing?

Whether during spontaneous breathing arterial pressure variations (APV) can detect a volume deficit is not established. We hypothesized that amplification of intra-thoracic pressure oscillations by breathing through resistors would enhance APV to allow identification of a reduced cardiac output (CO). This study tested that hypothesis in healthy volunteers exposed to central hypovolemia by head-up tilt.

8p viottohahn 30-03-2022 9 1 Download
Pleth variability index versus pulse pressure variation for intraoperative goal-directed fluid therapy in patients undergoing lowto-moderate risk abdominal surgery: A randomized controlled trial

Goal-directed fluid therapy (GDFT) based on dynamic indicators of fluid responsiveness has been shown to decrease postoperative complications and hospital length of stay (LOS) in patients undergoing major abdominal surgery. The usefulness of this approach still needs to be clarified in low-to-moderate risk abdominal surgery.

7p vampires36 30-12-2021 6 0 Download
Prediction of fluid responsiveness in mechanically ventilated cardiac surgical patients: The performance of seven different functional hemodynamic parameters

Functional hemodynamic parameters such as stroke volume and pulse pressure variation (SVV and PPV) have been shown to be reliable predictors of fluid responsiveness in mechanically ventilated patients. Today, different minimally- and non-invasive hemodynamic monitoring systems measure functional hemodynamic parameters.

7p vampires36 30-12-2021 12 0 Download
The validity of central venous to arterial carbon dioxide difference to predict adequate fluid management during living donor liver transplantation. A prospective observational study

To assess the validity of central and pulmonary veno-arterial CO2 gradients to predict fluid responsiveness and to guide fluid management during liver transplantation. Methods: In adult recipients (ASA III to IV) scheduled for liver transplantation, intraoperative fluid management was guided by pulse pressure variations (PPV).

7p vizhangzhidong 29-12-2021 6 0 Download
The tidal volume challenge improves the reliability of dynamic preload indices during robot-assisted laparoscopic surgery in the Trendelenburg position with lungprotective ventilation

The reliability of pulse pressure variation (PPV) and stroke volume variation (SVV) is controversial under pneumoperitoneum. In addition, the usefulness of these indices is being called into question with the increasing adoption of lung-protective ventilation using low tidal volume (VT) in surgical patients.

11p vizhangzhidong 29-12-2021 10 2 Download
Variation of bispectral index in children aged 1–12 years under propofol anesthesia: An observational study

The use of the bispectral index (BIS) is widespread in pediatric anesthesia, but few studies have attempted to perform a detailed evaluation of how BIS varies according to age in children under propofol anesthesia. This prospective study aimed to explore the exact relationship between BIS value and the age of 1- to 12-year-old children under propofol anesthesia.

7p vizhangzhidong 29-12-2021 9 0 Download
Báo cáo y học: "Pulse pressure variation, stroke volume variation and dynamic arterial elastance"

Tuyển tập các báo cáo nghiên cứu về y học được đăng trên tạp chí y học Critical Care giúp cho các bạn có thêm kiến thức về ngành y học đề tài: Pulse pressure variation, stroke volume variation and dynamic arterial elastance...

2p thulanh18 05-11-2011 83 3 Download
Báo cáo y học: "Respiratory pulse pressure variation fails to predict fluid responsiveness in acute respiratory distress syndrome"

Tuyển tập các báo cáo nghiên cứu về y học được đăng trên tạp chí y học Critical Care giúp cho các bạn có thêm kiến thức về ngành y học đề tài: Respiratory pulse pressure variation fails to predict fluid responsiveness in acute respiratory distress syndrome...

11p thulanh18 05-11-2011 38 1 Download
Báo cáo y học: " Pulse pressure variation and stroke volume variation during increased intra-abdominal pressure: an experimental study"

Tuyển tập các báo cáo nghiên cứu về y học được đăng trên tạp chí y học Critical Care giúp cho các bạn có thêm kiến thức về ngành y học đề tài: Pulse pressure variation and stroke volume variation during increased intra-abdominal pressure: an experimental study...

9p thulanh18 05-11-2011 40 2 Download
Báo cáo y học: " Using pulse pressure variation or stroke volume variation to diagnose right ventricular failure"

Tuyển tập các báo cáo nghiên cứu về y học được đăng trên tạp chí y học quốc tế cung cấp cho các bạn kiến thức về ngành y đề tài: Using pulse pressure variation or stroke volume variation to diagnose right ventricular failure?

2p coxanh_7 31-10-2011 43 1 Download
Báo cáo y học: "Pulse pressure variation and volume responsiveness during acutely increased pulmonary artery pressure: an experimental study"

Tuyển tập các báo cáo nghiên cứu về y học được đăng trên tạp chí y học quốc tế cung cấp cho các bạn kiến thức về ngành y đề tài: Pulse pressure variation and volume responsiveness during acutely increased pulmonary artery pressure: an experimental study...

9p coxanh_6 30-10-2011 44 2 Download
Báo cáo y học: " Pulse-pressure variation and hemodynamic response in patients with elevated pulmonary artery pressure: a clinical study"

Tuyển tập các báo cáo nghiên cứu về y học được đăng trên tạp chí y học quốc tế cung cấp cho các bạn kiến thức về ngành y đề tài: Pulse-pressure variation and hemodynamic response in patients with elevated pulmonary artery pressure: a clinical study...

9p coxanh_6 30-10-2011 54 6 Download