Obstructive sleep apnea

Obstructive sleep apnea hypopnea syndrome is an important medical condition which is on the increase in the past 50 years. It causes significant morbidity and mortality in both developed and developing nations of the world.. Literature review was carried out on the pathophysiology, clinical presentation, complications, diagnostic modalities, and various treatment options. Additional information was obtained by cross referencing on other related journals using computerized search.