Results 251 to 260 of about 481,434 (314)

A Novel Approach to Pulse Pressure Variation Estimation

2006 International Conference of the IEEE Engineering in Medicine and Biology Society, 2006
We describe a novel algorithm to estimate the pulse pressure variation index (PPV) from arterial blood pressure signals (ABP). PPV has been shown to be one of the best predictors of fluid responsiveness in mechanically ventilated subjects. Our PPV algorithm uses a non-linear technique for envelope estimation, eliminating the need for automatic beat ...
Daniel, Austin, Christian, Staats, Mateo, Aboy   +2 more
openaire   +2 more sources

The impact of sedation on pulse pressure variation

Australian Critical Care, 2015
Pulse pressure variations (PPV) are mainly influenced by ventilation. The impact of sedation on PPV is not known. The aim of the study was to test the influence of sedation on pulse pressure variation in mechanically ventilated critically ill patients and to compare PPV in critically ill and brain dead patients.
Vaclav, Zvonicek, Pavel, Jurak, Josef, Halamek, Peter, Kruzliak, Vlastimil, Vondra, Pavel, Leinveber, Ivan, Cundrle, Martin, Pavlík, Pavel, Suk, Vladimír, Sramek   +9 more
openaire   +2 more sources

Photoplethysmographic and pulse pressure variations during abdominal surgery

Acta Anaesthesiologica Scandinavica, 2011
BackgroundRespiratory variations in pulse pressure (ΔPP) predict fluid responsiveness during mechanical ventilation. Variations in pulse oximetry plethysmography amplitude (ΔPOP) are proposed as a non‐invasive alternative. Large variations in ΔPOP and poor agreement between ΔPP and ΔPOP are found in intensive care unit patients.
L Ø, Høiseth, I E, Hoff, O, Skare, K A, Kirkebøen, S A, Landsverk   +4 more
openaire   +2 more sources

Monitoring pulse pressure variation during lung resection surgery

Revista Española de Anestesiología y Reanimación (English Edition), 2019
Although pulse pressure variation (PPV) is an effective dynamic parameter widely used to predict the increase in cardiac output after the administration of fluids in abdominal surgery, its use in thoracic surgery is controversial. A study was designed to describe the behaviour of PPV during lung resection surgery.A prospective observational study was ...
J M, Nieves Alonso, E, Alday Muñoz, A, Planas Roca   +2 more
openaire   +2 more sources

Pulse pressure variation: where are we today?

Journal of Clinical Monitoring and Computing, 2010
In the present review we will describe and discuss the physiological and technological background necessary in understanding the dynamic parameters of fluid responsiveness and how they relate to recent softwares and algorithms' applications. We will also discuss the potential clinical applications of these parameters in the management of patients under
Maxime, Cannesson, Mateo, Aboy, Christoph K, Hofer, Mohamed, Rehman   +3 more
openaire   +2 more sources

Variation of arterial compliance within the cardiac pressure pulse

Journal of Biomechanics, 1998
Past investigations of in vivo arterial behavior have concentrated on determining material properties based upon the maximum and minimum pressure and diameter measured over a pulse cycle. A new in vivo technique, based upon continuous measurement of pressure and flow, has been developed to study arterial compliance throughout the pulse cycle ...
B A, MacWilliams, A H, Hoffman, B J, Savilonis   +2 more
openaire   +2 more sources

Automatic Algorithm for Monitoring Systolic Pressure Variation and Difference in Pulse Pressure

Anesthesia & Analgesia, 2009
Difference in pulse pressure (dPP) reliably predicts fluid responsiveness in patients. We have developed a respiratory variation (RV) monitoring device (RV monitor), which continuously records both airway pressure and arterial blood pressure (ABP). We compared the RV monitor measurements with manual dPP measurements.ABP and airway pressure (PAW) from ...
Gunther, Pestel, Kimiko, Fukui, Volker, Hartwich, Peter M, Schumacher, Andreas, Vogt, Luzius B, Hiltebrand, Andrea, Kurz, Yoshihisa, Fujita, Daniel, Inderbitzin, Daniel, Leibundgut   +9 more
openaire   +2 more sources

Pulse pressure variation and ARDS.

Minerva anestesiologica, 2013
Fluid management is a crucial issue in patients with acute respiratory distress syndrome (ARDS). Assessment of preload responsiveness should help to define the best fluid strategy. Arterial pulse pressure variation (PPV), which represents the amplitude of the respiratory changes in arterial pulse pressure, is considered as a marker of preload ...
J L, Teboul, X, Monnet
openaire   +1 more source

Pulse pressure variations adjusted by alveolar driving pressure to assess fluid responsiveness

Intensive Care Medicine, 2009
To evaluate the ability of DeltaPP/DeltaP [pulse pressure variations (DeltaPP) adjusted by alveolar pressure variations (DeltaP = Pplat-PEEPtot)] in predicting fluid responsiveness, to compare its accuracy to that of DeltaPP used alone and to evaluate the influence of tidal volume (Vt) on these two indices.Prospective study.A 22-bed general intensive ...
Fabrice, Vallée, Jean Christophe M, Richard, Arnaud, Mari, Thomas, Gallas, Eric, Arsac, Pascale Sanchez, Verlaan, Benjamin, Chousterman, Kamran, Samii, Michèle, Genestal, Olivier, Fourcade   +9 more
openaire   +2 more sources

Respiratory Variation in Pulse Pressure and Plethysmographic Waveforms

Anesthesia & Analgesia, 2011
Dynamic variables are the best predictors of fluid responsiveness in patients under general anesthesia and mechanical ventilation; namely, respiratory variations in pulse pressure and in the plethysmographic waveform. However, these variables have potential limitations. Our aim was to evaluate their intraoperative applicability.
Sinead Maguire, Joseph Rinehart, Shermeen Vakharia, Maxime Cannesson   +3 more
openaire   +1 more source