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Positional OSA part 2: retrospective cohort analysis with a new classification system (APOC).

M J L Ravesloot1, M H Frank2,3, J P van Maanen4

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Sleep & Breathing = Schlaf & Atmung
|June 19, 2015
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Summary
This summary is machine-generated.

The Amsterdam Positional Obstructive Sleep Apnoea Classification (APOC) identifies 69% of obstructive sleep apnoea (OSA) patients benefiting from positional therapy (PT). This classification aids in cost-efficient OSA treatment by identifying suitable candidates for PT.

Keywords:
Obstructive sleeping positionPositional therapySleep apnoea

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Area of Science:

  • Sleep Medicine
  • Respiratory Medicine
  • Medical Device Technology

Background:

  • Obstructive Sleep Apnoea (OSA) is a prevalent condition requiring effective treatment strategies.
  • Positional Therapy (PT) is emerging as a viable treatment option for OSA, particularly with new generation devices.
  • The Amsterdam Positional Obstructive Sleep Apnoea Classification (APOC) was developed to identify patients most likely to benefit from PT.

Purpose of the Study:

  • To determine the prevalence of position-dependent obstructive sleep apnoea (POSA) using the APOC classification.
  • To investigate the association between POSA and patient characteristics such as Body Mass Index (BMI) and Apnoea-Hypopnoea Index (AHI).
  • To evaluate the utility of APOC in selecting patients for positional therapy.

Main Methods:

  • A retrospective, single-centre cohort study was conducted.
  • Polysomnography (PSG) data from 253 OSA patients, collected between April and October 2010, were analyzed.
  • The APOC classification was applied to assess POSA prevalence.

Main Results:

  • The prevalence of POSA was found to be 69% when using the APOC classification, compared to 64% with Cartwright's classification.
  • An inverse relationship was observed between POSA and BMI.
  • A similar inverse relationship was noted between POSA and the Apnoea-Hypopnoea Index (AHI).

Conclusions:

  • The APOC classification is a suitable tool for identifying patients who will benefit from PT.
  • APOC can contribute to more cost-efficient OSA treatment by enabling targeted patient selection for PT.
  • Further validation of APOC in diverse patient populations is warranted.