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pleth variability index

Wilhelmina J den Boogert, Hugo A van Elteren, Tom G Goos, Irwin K M Reiss, Rogier C J de Jonge, Victor J van den Berg
The aim was to assess the reproducibility of the Pleth Variability Index (PVI), developed for non-invasive monitoring of peripheral perfusion, in preterm neonates below 32 weeks of gestational age. Three PVI measurements were consecutively performed in stable, comfortable preterm neonates in the first 48 h of life. On each occasion, pulse oximeter sensors were attached to two different limbs for 5 min. Reproducibility was assessed with the intra-class correlation coefficient (ICC) and Bland-Altman analysis...
August 31, 2017: Journal of Clinical Monitoring and Computing
İsmail Demirel, Esef Bolat, Aysun Yıldız Altun, Mustafa Özdemir, Azize Beştaş
BACKGROUND: There is no well-recognized guideline for intraoperative fluid management in bariatric surgery. Goal-directed fluid therapy (GDFT) is a new concept of perioperative fluid management which was shown to improve patients' prognoses. Dynamic indicators may better predict fluid response compared to static indicators. In this study, we aimed to assess effects of administering GDFT protocol via Pleth Variability Index (PVI) in morbidly obese patients undergoing laparoscopic Roux-en-Y gastric bypass (RYGB) surgery...
July 31, 2017: Obesity Surgery
Sandra Funcke, Sven Sauerlaender, Hans O Pinnschmidt, Bernd Saugel, Kai Bremer, Daniel A Reuter, Rainer Nitzschke
BACKGROUND: This study compares the analgesic indices Analgesia Nociception Index (heart rate variability), Surgical Pleth Index (photoplethysmography), and pupillary dilatation, to heart rate, mean arterial pressure, and bispectral index, with regard to diagnostic accuracy and prediction probability for nociceptive response. The primary endpoint was the correlation between Δ values and the remifentanil dose administered. METHODS: We anesthetized 38 patients with propofol and increasing doses of remifentanil and applied standardized tetanic and intracutaneous electrical painful stimulations on each analgesic level...
August 2017: Anesthesiology
Nianfang Lu, Xiuming Xi, Li Jiang, Degang Yang, Kai Yin
OBJECTIVE: To evaluate respiratory variations in carotid and brachial peak velocity and other hemodynamic parameters to predict responsiveness to fluid challenge. METHODS: A prospective observational study was performed on mechanically ventilated patients with septic shock. Outcomes included the measurements of central venous pressure, intrathoracic blood volume index, stroke volume variation (SVV), pleth variability index(PVI), and ultrasound assessments of respiratory variations in inferior vena cava diameter (ΔIVC), carotid Doppler peak velocity (ΔCDPV), and brachial artery peak velocity (ΔVpeak brach)...
September 2017: American Journal of Emergency Medicine
P García-Soler, J M Camacho Alonso, J M González-Gómez, G Milano-Manso
OBJECTIVE: To determine the accuracy and usefulness of noninvasive continuous hemoglobin (Hb) monitoring in critically ill patients at risk of bleeding. DESIGN: An observational prospective study was made, comparing core laboratory Hb measurement (LabHb) as the gold standard versus transcutaneous hemoglobin monitoring (SpHb). SETTING: Pediatric Intensive Care Unit of a tertiary University Hospital. PATIENTS: Patients weighing >3kg at risk of bleeding...
May 2017: Medicina Intensiva
Audrey Uong, Ariel Brandwein, Tamar York, Colin Crilly, Peter Silver, Jahn Avarello, Sandeep Gangadharan
No abstract text is available yet for this article.
December 2016: Critical Care Medicine
O Collange, L Jazaerli, A Lejay, C Biermann, S Caillard, B Moulin, N Chakfe, F Severac, M Schaeffer, P-M Mertes, A Steib
BACKGROUND: Delayed graft function (DGF) is an early postoperative complication of kidney transplantation (KT) predisposing to acute rejection and lower graft survival. Intraoperative arterial hypotension and hypovolemia are associated with DGF. Central venous pressure (CVP) is used to estimate volemia but its reliability has been criticized. Pleth variability index (PVI) is a hemodynamic parameter predicting fluid responsiveness. The aim of this study was to examine the relationship between intraoperative PVI and CVP values and the occurrence of DGF...
October 2016: Transplantation Proceedings
Ariel Brandwein, Kavita Patel, Myriam Kline, Peter Silver, Sandeep Gangadharan
OBJECTIVES: Patients with obstructive airway disease have varying degrees of pulsus paradoxus that correlate with illness severity. Pulsus paradoxus can be measured using plethysmography. We investigated whether plethysmograph (pleth) variability on admission to the pediatric emergency department (ED) could predict patient disposition. We hypothesized that patients with a larger pleth variability would have a higher likelihood of being admitted to a general pediatrics unit or the intensive care unit (ICU)...
October 6, 2016: Pediatric Emergency Care
Samantha R Warnakulasuriya, Simon J Davies, R Jonathan T Wilson, David R A Yates
STUDY OBJECTIVE: This study aims to investigate if there is equivalence in volumes of fluid administered when intravenous fluid therapy is guided by Pleth Variability Index (PVI) compared to the established technology of esophageal Doppler in low-risk patients undergoing major colorectal surgery. DESIGN: Randomized controlled trial. SETTING: Operating room. PATIENTS: Forty low-risk patients undergoing elective colorectal surgery...
November 2016: Journal of Clinical Anesthesia
Makoto Sato, Takayuki Kunisawa, Atsushi Kurosawa, Tomoki Sasakawa
STUDY OBJECTIVE: Hypertension or hypotension in patients receiving continuous infusions of dexmedetomidine (DEX) is often due to changes in vascular resistance caused by α2 receptor stimulation. We investigated whether baseline perfusion index (PI) and pleth variability index (PVI), derived from pulse oximetry readings, could predict DEX-induced changes in the hemodynamic status in spontaneously breathing patients. DESIGN: Observational study. SETTING: Operating room...
November 2016: Journal of Clinical Anesthesia
Jing Zhou, Yi Han
OBJECTIVES: To analyze the ability of pleth variability index (PVI) and respiratory system compliance (RSC) on evaluating the hemodynamic and respiratory effects of positive end expiratory pressure (PEEP), then to direct PEEP settings in mechanically ventilated critical patients. METHODS: We studied 22 mechanically ventilated critical patients in the intensive care unit. Patients were monitored with classical monitor and a pulse co-oximeter, with pulse sensors attached to patients' index fingers...
2016: SpringerPlus
J Harju, M-L Kalliomäki, H Leppikangas, M Kiviharju, A Yli-Hankala
BACKGROUND: The surgical pleth index (SPI) is a measurement of intraoperative nociception. Evidence of its usability in children is limited. Given that the autonomic nervous system is still developing during the first years of life, the performance of the SPI on small children cannot be concluded from studies carried out in older age groups. METHODS: Thirty children aged <2 yr, planned for elective open inguinal hernia repair or open correction of undescended testicle, were recruited...
September 2016: British Journal of Anaesthesia
Huseyin Konur, Gulay Erdogan Kayhan, Huseyin Ilksen Toprak, Nizamettin Bucak, Mustafa Said Aydogan, Saim Yologlu, Mahmut Durmus, Sezai Yılmaz
Fluid management is challenging and still remains controversial in orthotopic liver transplantation (OLT). The pleth variability index (PVI) has been shown to be a reliable predictor of fluid responsiveness of perioperative and critically ill patients; however, it has not been evaluated in OLT. This study was designed to examine whether the PVI can reliably predict fluid responsiveness in OLT and to compare PVI with other hemodynamic indexes that are measured using the PiCCO2 monitoring system. Twenty-five patients were enrolled in this study...
July 2016: Kaohsiung Journal of Medical Sciences
H-C Lee, Y-F Tsai, H-I Tsai, P C-H Chung, H-P Yu, W-C Lee, C-C Lin
BACKGROUND: Accurate estimation of cardiac preload during liver transplantation is essential. The right ventricular end-diastolic volume index (RVEDVI) is recognized as a good preload indicator in patients undergoing liver transplantation. Recently, dynamic variation parameters including pleth variability index (PVI) have been used as predictors of fluid responsiveness. However, the correlation between PVI and preload status has not been well studied. We evaluated the relationship between PVI and RVEDVI during liver transplantation...
May 2016: Transplantation Proceedings
Ruth Edry, Vasile Recea, Yuri Dikust, Daniel I Sessler
BACKGROUND: The nociception level (NoL) index is an index of nociception based on nonlinear combination of heart rate, heart rate variability, photoplethysmograph wave amplitude, skin conductance, skin conductance fluctuations, and their time derivatives. The authors evaluated the abilities of the NoL index and other measures of nociception to discriminate between noxious and nonnoxious stimuli, to progressively respond to graded stimuli, and to respond to opioid administration. METHODS: Intraoperative NoL was compared to heart rate, pulse plethysmograph amplitude, noninvasive blood pressure, and the surgical pleth index around five specific stimuli: tetanic stimulation with and without fentanyl analgesia, intubation, first incision/trocar insertion, and a nonnoxious period...
July 2016: Anesthesiology
L N Hannivoort, H E M Vereecke, J H Proost, B E K Heyse, D J Eleveld, T W Bouillon, M M R F Struys, M Luginbühl
BACKGROUND: The probability to tolerate laryngoscopy (PTOL) and its derivative, the noxious stimulation response index (NSRI), have been proposed as measures of potency of a propofol-remifentanil drug combination. This study aims at developing a triple drug interaction model to estimate the combined potency of sevoflurane, propofol, and remifentanil in terms of PTOL. We compare the predictive performance of PTOL and the NSRI with various anaesthetic depth monitors. METHODS: Data from three previous studies (n=120) were pooled and reanalysed...
May 2016: British Journal of Anaesthesia
Hiroaki Tanaka, Shinji Katsuragi, Kayo Tanaka, Takuya Kawamura, Masafumi Nii, Michiko Kubo, Kazuhiro Osato, Yoshihito Sasaki, Tomoaki Ikeda
OBJECTIVE: We assessed the utility of the pulse oximeter perfusion index (PI) in maternal monitoring immediately after delivery. METHODS: We examined 30 pregnant women without any complications using the Rad7 device at delivery. The correlations between heart rate (HR), systolic blood pressure (BP), oxygen saturation SpO2, PI, Pleth variability index (PVI), shock index and blood loss were assessed. RESULTS: Blood loss at 20-min postpartum was not correlated with the difference in heart rate, systolic BP, SpO2, shock index or PVI taken immediately after delivery and at 20-min postpartum, but showed a strong negative correlation with the difference in the PI taken immediately after delivery and at 20-min postpartum (r = -0...
December 2016: Journal of Maternal-fetal & Neonatal Medicine
H Bahlmann, R G Hahn, L Nilsson
BACKGROUND: Optimisation of stroke volume using oesophageal Doppler is an established technique to guide intraoperative fluid therapy. The method has practical limitations and therefore alternative indices of fluid responsiveness, such as ventilator-induced variation in the pulse oximetric signal (Pleth Variability Index (PVI)) could be considered. We hypothesised that both methods predict fluid responsiveness in a similar way. METHODS: Seventy-five patients scheduled for open major abdominal surgery were randomised to fluid optimisation using fluid bolus algorithms based on either PVI (n = 35) or Doppler (n = 39)...
February 2016: Acta Anaesthesiologica Scandinavica
Haitao Chu, Yong Wang, Yanfei Sun, Gang Wang
To systemically evaluate the accuracy of pleth variability index to predict fluid responsiveness in mechanically ventilated patients. A literature search of PUBMED, OVID, CBM, CNKI and Wanfang Data for clinical studies in which the accuracy of pleth variability index to predict fluid responsiveness was performed (last update 5 April 2015). Related journals were also searched manually. Two reviewers independently assessed trial quality according to the modified QUADAS items. Heterogeneous studies and meta-analysis were conducted by Meta-Disc 1...
June 2016: Journal of Clinical Monitoring and Computing
Yu Chen, Qiang Fu, Wei-dong Mi
OBJECTIVE: To investigate the effects of different positive end expiratory pressures (PEEP) on functional hemodynamic parameters in patients lying in prone position during operation under general anesthesia. METHODS: Totally 60 patients undergoing cervical vertebra operation or lumbar vertebra operation were studied. All patients were also monitored with Vigileo/FloTrac system. The functional hemodynamic parameters including stroke volume variation (SVV), pulse pressure variation (PPV), and pleth variability index (PVI) under PEEP levels of 0 mmHg, 5 mmHg, 10 mmHg, and 15 mmHg were recorded before and after volume expansion (hydroxyethyl starch 6%,7 ml/kg)...
April 2015: Zhongguo Yi Xue Ke Xue Yuan Xue Bao. Acta Academiae Medicinae Sinicae
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