Yiğit Ş, Takcı Ş, Bozkaya D, Yurdakök M. Perfusion index and pleth variability index in the first hour of life according to mode of delivery. Turk J Pediatr 2018; 60: 421-425. Perfusion index (PI) is a relative assessment of the pulse strength at the monitoring site. The plethysmographic variability index (PVI, pleth variability index) is a noninvasive and continuous measure of the dynamic change in PI that occurs during respiratory cycles. In this study PI and PVI changes were compared in babies born with cesarean section (C/S) or spontaneous vaginal delivery (SVD); 125 healthy term infants were monitored with pulse oxymeter after first ten minutes of life. Data were recorded from this monitor on a personal computer and analyzed by generalized estimating equations (GEE) method. Pulse rate was lower in babies born via SVD. Perfusion index were higher in C/S group. Pleth variability index were higher in C/S group. Higher pulse rate, PI and PVI values in babies born via C/S may be indicative of more significant hemodynamic changes in these infants during early transitional period after birth.
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http://dx.doi.org/10.24953/turkjped.2018.04.010 | DOI Listing |
Medicina (Kaunas)
December 2024
Department of Anesthesiology and Pain Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul 05505, Republic of Korea.
: The modified prone position, which is an alteration of the standard prone position, reduces cardiac preload. Dynamic variables including stroke volume variation (SVV), pulse pressure variation (PPV), and pleth variability index (PVI) are reliable predictors for fluid responsiveness during surgery. To the best of our knowledge, no studies assessing dynamic variables for fluid responsiveness have been conducted in the modified prone position.
View Article and Find Full Text PDFCir Cir
November 2024
Department of Anesthesia and Reanimation, Health Sciences University, Ümraniye Training and Research Hospital, Istanbul, Turkey.
Objective: We aimed to predict the risk of hypotension due to spinal anesthesia (HSA) by measuring the diameter and area of the inferior vena cava (IVC-D, IVC-A) through ultrasound and pleth variability index (PVI) in patients who underwent endovenous radiofrequency ablation under spinal anesthesia (SA).
Methods: This cross-sectional, observational, and prospective study was completed with 64 patients. Before SA, PVI IVC-D, and IVC-A were measured.
Turk Gogus Kalp Damar Cerrahisi Derg
July 2024
Departments of Thoracic Surgery, Faculty of Medicine, Karadeniz Technical University, Trabzon, Türkiye.
Background: The aim of this study was to compare the total fluid volume performed by noninvasive Pleth Variability Index in thoracic surgery patients in comparison to conventional fluid management.
Methods: In this prospective randomized controlled study conducted between May 2019 and May 2020, 80 patients (68 males, 12 females; mean age: 58.5±6.
Vet Sci
August 2024
Section of Veterinary Clinics and Animal Production, Department of Precision and Regenerative Medicine and Ionian Area (DiMePre-J), University of Bari, 70010 Valenzano, Italy.
The aim of this prospective, randomized clinical trial was to evaluate the use of the pleth variability index (PVi) to guide the rate of intraoperative fluid therapy compared to a traditional fixed-fluid-rate approach in ASA 1-2 dogs undergoing surgery. Twenty-seven dogs met the inclusion criteria and were randomly assigned to the conventional fluid management group (CFM, = 12) or the PVi-guided group (PVi, = 15). The CFM group received a fixed rate of 5 mL kg h of crystalloid solution, while in the PVi group the rate was continuously adjusted based on the PVi: PVi < 14% = 3 mL kg h; 14% ≤ PVi ≥ 20% = 10 mL kg h; and PVi > 20% = 15 mL kg h.
View Article and Find Full Text PDFCrit Care
September 2024
AP-HP, Service de médecine intensive-réanimation, Hôpital de Bicêtre, DMU 4 CORREVE, Inserm UMR S_999, FHU SEPSIS, CARMAS, Université Paris-Saclay, 78 rue du Général Leclerc, 94270, Le Kremlin-Bicêtre, France.
Background: To detect preload responsiveness in patients ventilated with a tidal volume (Vt) at 6 mL/kg of predicted body weight (PBW), the Vt-challenge consists in increasing Vt from 6 to 8 mL/kg PBW and measuring the increase in pulse pressure variation (PPV). However, this requires an arterial catheter. The perfusion index (PI), which reflects the amplitude of the photoplethysmographic signal, may reflect stroke volume and its respiratory variation (pleth variability index, PVI) may estimate PPV.
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