Results 1 to 10 of about 27,091 (195)

Implantable Impedance Plethysmography [PDF]

Sensors, 2014
We demonstrate by theory, as well as by ex vivo and in vivo measurements that impedance plethysmography, applied extravascularly directly on large arteries, is a viable method for monitoring various cardiovascular parameters, such as blood pressure, with
Michael Theodor, Dominic Ruh, Martin Ocker, Dominik Spether, Katharina Förster, Claudia Heilmann, Friedhelm Beyersdorf, Yiannos Manoli, Hans Zappe, Andreas Seifert   +9 more
doaj   +5 more sources

Computerized photo-plethysmography of the finger [PDF]

Canadian Journal of Anaesthesia, 1993
A microcomputer system for studying photo-plethysmography of the finger (PPF) was designed and applied to 50 non-premedicated healthy boys (one to ten years old) undergoing general anaesthesia (halothane in 70% N2O, with mechanical ventilation) for outpatient inguinal hernia repair.
Victor Faria Blanc, Margaret Haig, Michel Troli, Benoit Sauvé   +3 more
openalex   +5 more sources

A STADY OF THE IMPEDANCE PLETHYSMOGRAPHY ON THE KIDNEY

The Japanese Journal of Urology, 1968
I Amino
openalex   +5 more sources

Evaluating endovenous laser and glue ablation in the treatment of great saphenous vein insufficiency: A 5-year retrospective comparative study

Turkish Journal of Vascular Surgery, 2023
Aim: The use of endovascular thermal and nonthermal methods in the treatment of chronic venous insufficiency has been in practice for over 10 years. The early results of these practices have been published and extensively discussed.
Hakan Guven
doaj   +1 more source

Different perspectives for monitoring nociception during general anesthesia [PDF]

Korean Journal of Anesthesiology, 2022
Safe anesthesia is achieved using objective methods that estimate the patient’s state during different phases of surgery. A patient’s state under anesthesia is characterized by three major aspects, which are linked to the main effects produced by each of
Pablo Martinez-Vazquez, Erik Weber Jensen   +1 more
doaj   +1 more source

Estimation of heart rate variability from finger photoplethysmography during rest, mild exercise and mild mental stress

Journal of Electrical Bioimpedance, 2021
Due to the possibilities in miniaturization and wearability, photoplethysmography (PPG) has recently gained a large interest not only for heart rate measurement, but also for estimating heart rate variability, which is derived from ECG by convention. The
Singstad Bjørn-Jostein, Azulay Naomi, Bjurstedt Andreas, Bjørndal Simen S., Drageseth Magnus F., Engeset Peter, Eriksen Kari, Gidey Muluberhan Y., Granum Espen O., Greaker Matias G., Grorud Amund, Hewes Sebastian O., Hou Jie, Llop Recha Adrián M., Matre Christoffer, Seputis Arnoldas, Sørensen Simen E., Thøgersen Vegard, Joten Vegard Munkeby, Tronstad Christian, Martinsen Ørjan G.   +20 more
doaj   +1 more source

Thoracoabdominal asynchrony: Two methods in healthy, COPD, and interstitial lung disease patients. [PDF]

PLoS ONE, 2017
Thoracoabdominal asynchrony is the nonparallel motion of the ribcage and abdomen. It is estimated by using respiratory inductive plethysmography and, recently, using optoelectronic plethysmography; however the agreement of measurements between these 2 ...
Mayra Caleffi Pereira, Desiderio Cano Porras, Adriana Claudia Lunardi, Cibele Cristine Berto Marques da Silva, Renata Cléia Claudino Barbosa, Letícia Zumpano Cardenas, Renata Pletsch, Jeferson George Ferreira, Isac de Castro, Celso Ricardo Fernandes de Carvalho, Pedro Caruso, Carlos Roberto Ribeiro de Carvalho, André Luis Pereira de Albuquerque   +12 more
doaj   +1 more source

Pulse arrival time: Measurement and clinical applications

MGM Journal of Medical Sciences, 2022
Pulse arrival time is the time elapsed between the R-wave of electrocardiogram and systolic peak in peripheral pulse obtained by any of the plethysmographic methods.
Chaitali A Deshmukh, Ghanshyam D Jindal, Uttam R Bagal, Gajanan D Nagare   +3 more
doaj   +1 more source

Perfusion index as an early predictor of hypotension following spinal anesthesia for cesarean section

Journal of Obstetric Anaesthesia and Critical Care, 2020
Introduction: Hypotension is a common complication after spinal anesthesia for cesarean delivery which is caused by sympathetic block 1. This can result in adverse maternal and fetal outcomes.
Roshana Prasad Mallawaarachchi, Vasanthi Pinto, P H D P De Silva   +2 more
doaj   +1 more source

Early prediction of acute kidney injury with cell cycle arrest biomarkers using plethesmography directed fluid management in major abdominal surgery

Egyptian Journal of Anaesthesia, 2022
Background Acute kidney injury (AKI) is a known complication after major abdominal surgery. Use of the usual functional AKI biomarkers for detection shows delayed results, and so, the use of cell cycle arrest biomarker was proposed.Purpose The aim of the
Marwa Medhat Ahmed Mahran, Amal Mohamed Sabry Ahmed, Ahmed Youssef Aly Mohamed, Ayman Fathy Khalifa Elsayed   +3 more
doaj   +1 more source