Publication: Clinical Profile and Diagnosis of Obstructive Sleep Apnea Syndrome using Overnight Polysomnography in a Tertiary Care Hospital
Date
2021
Journal Title
Journal ISSN
Volume Title
Publisher
Kathmandu University
Abstract
ABSTRACT
Background
Obstructive sleep apnea is a highly prevalent yet largely under-diagnosed disease
that poses a significant burden on the healthcare system.
Objective
To determine the role of predictors for Obstructive sleep apnea syndrome and its
severity in Nepalese population.
Method
Prospective and analytical study conducted in the Department of Otorhinolaryngology
and Head and Neck surgery at Kathmandu University Hospital between March 2018
and June 2020. A total of 85 adult patients with Obstructive sleep apnea with an
Epworth sleepiness score greater than 10 were included. Overnight polysomnography
was done and scoring of sleep associated events were done according to the
American Academy of Sleep Medicine criteria. Participants were classified as simple
snoring and mild, moderate or severe Obstructive sleep apnea syndrome groups
depending on the Apnea Hypopnea Index values. Relationship of Apnea hypopnea
index was analyzed with age, neck circumference, body mass index and Epworth
Sleepiness score.
Result
Simple snoring was seen in 18(21.17%) patients, 14(16.47%) had mild Obstructive
sleep apnea, 13(15.29%) had moderate Obstructive sleep apnea, whereas the severe
group consisted of 40(47.05%) patients. The minimum Epworth Sleepiness Score
was 10 and the maximum was 25. The Apnea hypopnea index correlated positively
with Body mass index (p=.010) and Epworth sleepiness score (p<.001). However,
Apnea hypopnea index had no association with age (p=.437) and neck circumference
(p=.118).
Conclusion
Health professionals need to be extremely vigilant while examining patients
presenting with Obstructive Sleep Apnea. Polysomnography is the investigation of
choice in the early identification of this treatable disease.
KEY WORDS
Apnea hypopnea index, Obstructive sleep apnea, Polysomnography
Description
Pokharel M, Shrestha BL, Dhakal A, Rajbhandari P, Shrestha KS, KC AK, Bhattarai A, Karki DR
Department of Otorhinolaryngology and Head and Neck Surgery
Kathmandu University School of Medical Sciences
Dhulikhel Hospital, Kathmandu University Hospital
Dhulikhel, Kavre, Nepal
Keywords
Apnea hypopnea index, Obstructive sleep apnea, Polysomnography