Thoracic Research and Practice
Original Article

Investigating the Differences in Polysomnography Results Evaluated According to the Recommended and Alternative Hypopnea Criteria Utilized in the Evaluation of Polysomnography

1.

Department of Pulmonary Diseases, İstanbul Bakirkoy Dr.Sadi Konuk Education and Research Hospital, İstanbul

2.

Department of Pulmonary Diseases, İstanbul University - Cerrahpaşa, Cerrahpaşa Medical Faculty, İstanbul

Thorac Res Pract 2022; 23: 383-386
DOI: 10.5152/TurkThoracJ.2022.22069
Read: 75 Downloads: 27 Published: 01 November 2022

OBJECTIVE: The criteria of hypopnea recommended by the American Academy of Sleep Medicine until 2012 was 3% desaturation and 50% decline in the signal amplitude. The recommended and alternative criteria for hypopnea were determined as 3% desaturation accompanied by a 30% decline in the signal amplitude and 4% desaturation accompanied by a 30% decline in the amplitude by the 2013 update of the guideline was published by the American Academy of Sleep Medicine in 2012. The objective of our study was to investigate to what degree scoring of hypopneas has great importance in the diagnosis and severity grading of obstructive sleep apnea syndrome according to different criteria.

MATERIAL AND METHODS: The present study was designed as a retrospective study in which the results of the polysomnography of 62 patients were recorded after evaluation according to 3 different hypopnea criteria. Criteria 1, criteria 2, and criteria 3 were accepted as a 3% drop in SaO2 accompanied by a 30% decline in the amplitude, as a 4% drop in SaO2 accompanied by a 30% decline in the amplitude, and as a 3% drop in SaO2 accompanied with a 50% decline in the amplitude, respectively.

RESULTS: Statistically significant differences were determined between criteria 1 and criteria 2, criteria 1 and criteria 3, and criteria 2 and criteria 3 regarding the numbers of hypopneas.

CONCLUSION: For the same polysomnography, evaluations with different accepted hypopnea criteria cause different polysomnography results.

Cite this article as: Gencer A, Calışkaner Özturk B, Musellim B. Investigating the differences in polysomnography results evaluated according to the recommended and alternative hypopnea criteria utilized in the evaluation of polysomnography. Turk Thorac J. 2022;23(6):383-386.

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