Blood Loss Estimation Using Gauze Visual Analogue

Area of Science:

• Medical Devices
• Surgical Techniques
• Clinical Research

Background:

• Accurate intraoperative blood loss estimation is crucial but difficult, particularly when blood is absorbed by gauze.
• Existing methods for quantifying blood absorbed by gauze are often imprecise.
• This study addresses the need for an improved method to estimate blood loss via gauze absorption.

Purpose of the Study:

• To develop and validate a visual analogue guide for estimating blood absorbed by surgical gauze.
• To provide a standardized tool for quantifying blood loss during surgical procedures.
• To enhance the accuracy of blood loss assessment in clinical settings.

Main Methods:

• A clinical experiment was performed using aspirated blood and standard surgical gauze.
• Photographs of gauze stained with varying blood percentages were used to create a visual analogue scale.
• The absorptive capacity of different gauze sizes and the effect of pre-wetting with saline were determined.

Main Results:

• A visual analogue scale was successfully developed to aid in estimating blood absorbed by gauze.
• The absorptive capacity of various gauze sizes was quantified under saturated conditions.
• A reduction in gauze absorption was observed when pre-wetted with normal saline.

Conclusions:

• The developed visual analogue scale can improve the accuracy of blood loss estimation.
• Utilizing this tool may reduce complications arising from over- or underestimation of surgical blood loss.
• This method offers a practical approach to enhance intraoperative blood loss assessment.