New Algorithm, Perfusion Index (PI), and Pleth Variability Index (PVI) -How to Utilize Them in General Anesthesia Management-
نویسندگان
چکیده
منابع مشابه
Accuracy of the pleth variability index to predict fluid responsiveness depends on the perfusion index.
BACKGROUND Respiratory variations in plethysmographic waveform amplitudes derived from pulse oximetry are believed to predict fluid responsiveness. The non-invasive pleth variability index (PVI) is a variable based on the calculation of changes in the perfusion index (PI). The aim of the following study was to examine whether the predictive power of PVI depends on different values of PI. METH...
متن کاملPleth Variability Index predicts fluid responsiveness in critically ill patients
OBJECTIVE To investigate whether the pleth variability index, a noninvasive and continuous tool, can predict fluid responsiveness in mechanically ventilated patients with circulatory insufficiency. DESIGN Prospective study. SETTING Surgical intensive care unit of a university hospital. PATIENTS Forty mechanically ventilated patients with circulatory insufficiency in whom volume expansion ...
متن کاملEffect of hypercapnia on pleth variability index during stable propofol: Remifentanil anesthesia
BACKGROUND The pleth variability index (PVI), which is calculated from respiratory variations in the perfusion index (PI), has been shown to predict fluid responsiveness in mechanically ventilated patients; however, vasomotor tone changes induced by hypercapnia can affect PI and hence may slim down the accuracy of PVI. This study was designed to find out the impact of mild hypercapnia on PVI. ...
متن کاملChange of QT variability index during general anesthesia
BACKGROUND The QT variability index (QTVI)-a non-invasive measure of beat-to-beat QT interval (QTI) fluctuations-is related to myocardial repolarization lability. The QTVI represents the relationship between QTI and the RR interval. Elevated QTVI is associated with an increased risk of malignant ventricular arrhythmias and sudden death. We investigated the influence of general anesthesia and to...
متن کاملThe effect of nicardipine on the surgical pleth index during thyroidectomy under general anesthesia
BACKGROUND The effectiveness of surgical pleth index (SPI) for managing nociception-antinociception balance during general anesthesia with vasodilators, including nicardipine has not been demonstrated. We aimed to compare the time course during surgery in SPI values in patients receiving nicardipine or remifentanil infusion during thyroidectomy. METHODS Forty patients undergoing thyroidectomy...
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ژورنال
عنوان ژورنال: THE JOURNAL OF JAPAN SOCIETY FOR CLINICAL ANESTHESIA
سال: 2011
ISSN: 0285-4945,1349-9149
DOI: 10.2199/jjsca.31.501