Overlap of Sleep Disorders and Chronic Respiratory Diseases: An Emerging Health Dilemma

  • Puru Koirala Birat Medical College Teaching Hospital, Biratnagar, Nepal http://orcid.org/0000-0003-2799-5266
  • Narendra Bhatta BP Koirala Institute of Health Sciences, Dharan, Nepal
  • Ram Hari Ghimire Nobel Medical College, Biratnagar, Nepal
  • Deebya Raj Mishra BP Koirala Institute of Health Sciences, Dharan, Nepal
  • Bidesh Bista Civil Service Hospital, Kathmandu, Nepal
  • Bhupendra Shah BP Koirala Institute of Health Sciences, Dharan, Nepal
Keywords: Overlap Syndrome, Sleep Disorders, Respiratory Diseases

Abstract

Introduction: The burden of Overlap Syndrome (coexistence of sleep-related breathing disorders in patients with respiratory diseases) is high in developing countries, and such a phenomenon implies higher morbidity. The study was conducted to measure the prevalence of sleep-related breathing disorders in patients with Respiratory Symptom Complex and to identify factors associated with the severity of sleep-related breathing disorders.
Materials and Methods: A hospital-based cross-sectional study of 50 patients with respiratory symptom complex was conducted at BP Koirala Institute of Health Sciences. Structured proforma and Polysomnography were used for analysis.
Results: There were 24 patients (48%) with COPD, 18 (36%) with Bronchial Asthma. 6 patients (12%) with Bronchiectasis and 2 patients with Interstitial Lung Disease. 60% (n=30) patients had sleep-related breathing disorder or Overlap syndrome, 14 patients (46.67%) had mild sleep-related breathing disorder while 16 (53.33%) patients had moderate to severe type. 62.5% COPD patients, 55.55% Bronchial Asthma patients, 50% of patients with Interstitial Lung Disease and 50% Post-TB Bronchiectasis patients had a sleep-related breathing disorder. There was a significant positive correlation between the presence of sleep-related breathing disorder in patients with respiratory symptom complex and high neck circumference (0.499, p-value <0.001), waist circumference (0.293, p-value = 0.039) and hip circumference (0.371, p-value = 0.008).
Conclusions: Overlap Disorders comprising sleep disorders in patients with chronic respiratory diseases are high in developing countries. Routine sleep history and polysomnography in all patients with Respiratory Symptom Complex can detect sleep-related breathing disorders.

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Author Biographies

Puru Koirala, Birat Medical College Teaching Hospital, Biratnagar, Nepal

Assistant Professor, Department of Internal Medicine

Narendra Bhatta, BP Koirala Institute of Health Sciences, Dharan, Nepal

Department of Pulmonary, Critical Care & Sleep Medicine

Ram Hari Ghimire, Nobel Medical College, Biratnagar, Nepal

Department of Pulmonary & Sleep Medicine, Nobel Medical College, Biratnagar, Nepal and
Department of Internal Medicine, BP Koirala Institute of Health Sciences, Dharan, Nepal

Deebya Raj Mishra, BP Koirala Institute of Health Sciences, Dharan, Nepal

Department of Pulmonary, Critical Care & Sleep Medicine

Bidesh Bista, Civil Service Hospital, Kathmandu, Nepal

Department of Internal Medicine, Civil Service Hospital, Kathmandu, Nepal and
Department of Internal Medicine, BP Koirala Institute of Health Sciences, Dharan, Nepal

Bhupendra Shah, BP Koirala Institute of Health Sciences, Dharan, Nepal

Department of Internal Medicine

Published
2019-12-22
How to Cite
Koirala, P., Bhatta, N., Ghimire, R. H., Mishra, D., Bista, B., & Shah, B. (2019). Overlap of Sleep Disorders and Chronic Respiratory Diseases: An Emerging Health Dilemma. Nepalese Medical Journal, 2(2), 243-249. https://doi.org/10.3126/nmj.v2i2.26007
Section
Original Articles