NCT02527538

Prediction of Hypotension During Beach Chair Position Using Pleth Variability Index

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

• Status: Unknown
• Phase: —
• Study type: Observational
• Enrollment: 57 (estimated)
• Sponsor: Chung-Ang University Hosptial, Chung-Ang University College of Medicine · Academic / Other
• Sex: All
• Age: 20 Years – 70 Years
• Healthy volunteers: Not accepted

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.

Detailed 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.

Conditions

• Hypotension

Interventions

Type	Name	Description
DEVICE	Pleth	apply the masimo probe on index fingertip and record the pleth variability and blood pressure during beach chair position

Timeline

• Start date: 2015-06-01
• Primary completion: 2016-06-01
• Completion: 2016-06-01
• First posted: 2015-08-19
• Last updated: 2016-01-28

Locations

1 site across 1 country: South Korea