Prediction of Hypotension During Beach Chair Position Using Pleth Variability Index

Hypotension Clinical Trial

Official title: Pleth Variability Index Predicts Hypotension in Beach Chair Position in Mechanically Ventilated Adults During General Anesthesia

Status Recruiting

Clinical Trial Summary

The beach chair position for shoulder operation induces hypotension during general anesthesia. Hypotension is induced by decreased preload and contractility due to anesthesia. Masimo is a pulse oximetry which shows pleth variability index noninvasively. The pleth variability may predict the hypotension during beach chair position.

Clinical Trial Description

The beach chair position for shoulder operation induces hypotension during general anesthesia. Hypotension is induced by decreased preload and contractility due to anesthesia. Masimo is a pulse oximetry which shows pleth variability index noninvasively. The investigators put the masimo probe before general anesthesia and recorded the values before and after beach chair position, The values include arterial pressure, heart rate, blood pressure, perfusion index, pleth variability index.

The primary end point was the predictive value and threshold or pleth variability index for hypotension induced by the beach chair position. The occurrence of hypotension was counted by using vasopressor. The use of vasopressor was performed when mean blood pressure less than 65 mmHg or 20% of baseline.

The investigators planned to recruit 57 patients. ;

Study Design

Observational Model: Cohort, Time Perspective: Prospective

Related Conditions & MeSH terms

• Hypotension

• NCT number: NCT02527538
• Study type: Observational
• Source: Chung-Ang University Hospital
• Contact: Yong-Hee Park, M.D.
• Phone: +82-2-6299-3207
• Email: dada822@naver.com
• Status: Recruiting
• Phase: N/A
• Start date: June 2015
• Completion date: June 2016