Predictability of ANI (Analgesia Nociception Index) for Spinal Hypotension

Status Recruiting

Clinical Trial Summary

Spinal anesthesia is widely accepted as the anesthetic method of choice for Cesarean section. However, the incidence of spinal hypotension is 50-70%, and the decrease in blood pressure is often rapid and severe. Heart rate variability is influenced by various factors such as the sympathetic nervous system, parasympathetic nervous system, temperature regulation, baroreflex, and endocrine regulation, but high frequency heart rate variability above 0.15 Hz very specifically reflects the parasympathetic nervous system. The ANI monitor calculates heart rate variability mediated by changes in the parasympathetic nervous system. This study aims to determine whether ANI monitor can predict hypotension in patients undergoing a caesarean section under spinal anaesthesia while applying the preemptive vasopressor phenylephrine infusion protocol.

Clinical Trial Description

n/a

Study Design

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT06327165
Study type	Observational
Source	Yonsei University
Contact	Seung Hyun Kim, Associate Professor
Phone	82-2-2224-1055
Email	anesshkim@yuhs.ac
Status	Recruiting
Phase
Start date	March 18, 2024
Completion date	December 31, 2024

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See also
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