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Related Experiment Videos

What is hypopnea, anyway?

N J Moser1, B A Phillips, D T Berry

  • 1Department of Medicine, University of Kentucky, Lexington.

Chest
|February 1, 1994
PubMed
Summary
This summary is machine-generated.

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Quantifying sleep-disordered breathing (SDB) events like hypopneas lacks standardization. This study found no consensus on hypopnea definitions or recording techniques among sleep labs, impacting SDB research reliability.

Area of Science:

  • Sleep Medicine
  • Respiratory Physiology

Background:

  • Quantification of apneas and hypopneas is crucial for sleep-disordered breathing (SDB) research.
  • While apnea definitions are consistent, hypopnea definitions and recording techniques vary significantly in the literature.

Purpose of the Study:

  • To characterize the diversity in definitions and techniques used for identifying hypopnea in clinical sleep laboratories.
  • To assess the level of consensus on hypopnea measurement across accredited sleep facilities.

Main Methods:

  • A survey was distributed to 100 accredited sleep laboratories.
  • Laboratories were asked to provide their specific criteria and equipment for defining hypopnea.
  • Response rate was 45%.

Main Results:

Related Experiment Videos

  • No two responding laboratories utilized the same definition or measures for hypopnea.
  • Significant variability exists in both the criteria and equipment used to define hypopnea.
  • Lack of standardization in hypopnea detection methods was evident.

Conclusions:

  • There is a notable lack of consensus regarding both recording techniques and definitions of hypopnea.
  • Epidemiological studies and intervention reports on SDB require precise hypopnea definitions for accurate interpretation.
  • The findings highlight the need for standardization in hypopnea assessment to improve SDB research validity.