Predicting Preoperative Hemodynamic Changes Using the Visual Analog Scale

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Abstract

Purpose:

This study aimed to investigate how both visual analog scale cutoff scores and State-Trait Anxiety Inventory scores relate to hemodynamic changes in patients entering the operating theater.

Design:

A prospective observational study.

Methods:

The study subjects included 130 prospectively enrolled patients who were scheduled for abdominal surgery under combined epidural-general anesthesia and who underwent preoperative anxiety level measurements using both scales.

Findings:

The heart rate and systolic blood pressure on entering the operating theater were significantly higher than those at baseline in the high and low/moderate anxiety groups. Variations in heart rate and systolic blood pressure were significantly higher, whereas peripheral blood flow was significantly lower in the high anxiety group compared with the low/moderate anxiety group.

Conclusions:

Using the visual analog scale to measure anxiety can improve our understanding of the hemodynamic changes that occur when patients enter the operating theater.

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