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Original Articles

Evaluation of Polysomnographic data pattern of Patients who undergo overnight sleep study in NHSL

Authors:

DS Tennakoon ,

Registrar, ENT unit, National Hospital, LK
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DCS Perera,

LK
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C Jayasuriya,

LK
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RP Dayasena,

LK
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DMRF Senarathna,

LK
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KAYS Wijethilaka,

LK
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PGJS Kumaratunga

LK
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Abstract

Objectives Aim of the study is to evaluate the polysomnographic data pattern of Sri Lankan population who are undergoing overnight sleepstudy.

Method Analytial study of Polysomnographic reports of 117 patients was done by analyzing the polysomnography reports of each patient in detail.

Results Study was done on 117 patients. 82% of the patients were males and 18% were females. 33% were in the age group between 41-50 years. 51% had a BMI of 26-30. 24% were obese. Only one patient was morbidly obese. 21% were snoring with more than 100 snoring episodes during sleep, with 12% showing a total snoring time lasting for more than 1 hour. There is a significant difference in snoring between male and female population. 62% maintained an average oxygen saturation of 96-100%. 50% were restless during the sleep with more than 90 limb movements per sleep. Apnoea-Hypopnoea Index showed 33%of mild sleep apnoea, 29% moderate and 16% severe sleep apnoea. Majority of the population showed an obstructive sleep apnoea pattern.

Conclusion Majority of Sri Lankan patients who undergo sleep study are overweight middle aged males. There is a significant difference between snoring episode and gender. Most of the study population showed mild obstructive sleep apnoea. Though Polysomnographic studies are time consuming and expensive, it is a unique apparatus to correlate electrical and electro physiological data and is a good instrument towards patient’s outcome and unnecessary testing.

DOI: http://dx.doi.org/10.4038/cjo.v3i1.5214

Ceylon Journal of Otolaryngology Vol.3(1) 2013 pp.20-25

How to Cite: Tennakoon, D. et al., (2013). Evaluation of Polysomnographic data pattern of Patients who undergo overnight sleep study in NHSL. Ceylon Journal of Otolaryngology. 3(1), pp.20–25. DOI: http://doi.org/10.4038/cjo.v3i1.5214
Published on 08 Feb 2013.
Peer Reviewed

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