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Related Experiment Videos

Principles of alternating pressure surfaces

A G McLeod1

  • 1Huntleigh Healthcare, Luton, England.

Advances in Wound Care : the Journal for Prevention and Healing
|February 5, 1998
PubMed
Summary

Alternating pressure air mattresses (APAMs) effectively prevent pressure ulcers but have design issues. Understanding their alternating surfaces is crucial for safe clinical use and accurate pressure measurement.

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Area of Science:

  • Biomedical Engineering
  • Clinical Medicine
  • Materials Science

Background:

  • Alternating pressure air mattresses (APAMs) have been used for nearly 50 years.
  • Early APAMs showed effectiveness in preventing pressure ulcers but faced quality and reliability issues.
  • Current APAMs, including overlays and replacements, are common in clinical settings for pressure ulcer management.

Purpose of the Study:

  • To review the design rationale of APAMs.
  • To highlight the importance of understanding alternating surface characteristics.
  • To caution against direct comparison of interface pressures with static surfaces.

Main Methods:

  • Literature review on APAM design and function.
  • Discussion of physical characteristics of alternating surfaces.
  • Analysis of factors influencing interface pressure measurements.

Main Results:

  • Limited published data exists on APAM design rationale.
  • Quality and reliability were historical concerns impacting APAM use.
  • Interface pressure measurement comparability between APAMs and static surfaces requires careful consideration.

Conclusions:

  • APAMs are valuable tools for pressure ulcer prevention and treatment.
  • Further understanding of APAM characteristics is needed for optimal application.
  • Standardized methods for pressure measurement on dynamic surfaces are essential.

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