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Using Continuous Intraoperative Pressure Mapping to Describe Patterns of Tissue Interface Pressure.
AORN Journal
|August 25, 2022
Summary
High intraoperative tissue interface pressure is common, especially at the scapulae, interscapular, and sacral areas. Factors like BMI, surgery length, and patient position significantly increase this pressure, risking skin integrity.
Area of Science:
- Medical Science
- Surgical Nursing
- Biomedical Engineering
Background:
- Surgical patients are at risk of pressure-related skin injuries.
- Understanding intraoperative tissue interface pressure is crucial for prevention.
Purpose of the Study:
- To describe intraoperative tissue interface pressure patterns.
- To quantify time exceeding 32 mm Hg at key anatomical sites.
- To identify patient and surgery factors associated with peak pressure.
Main Methods:
- Utilized a pressure mapping system for 150 patients.
- Employed linear mixed-effects models to analyze pressure trends.
- Measured pressure at four anatomical locations during surgery.
Main Results:
- Interface pressure exceeded 32 mm Hg for 70% of the time at the scapulae and interscapular area.
- Interface pressure exceeded 32 mm Hg for 90% of the time at the sacral area.
- Body mass index, surgery length, and intraoperative position predicted increased peak pressure.
Conclusions:
- Sustained high tissue interface pressure is prevalent during surgery.
- Perioperative nurses can use this data to develop pressure-attenuating strategies.
- Protecting skin integrity requires understanding and managing intraoperative pressure.
Keywords:
critical valueperson-centered care (PCC)pressure injurypressure mappingtissue interface pressure
