Obstructive sleep apnoea (OSA) is a common and progressive chronic disease. It is responsible for a high number of comorbidities and is linked with increased mortality, including a rise in the rate of sudden cardiac death. It is widely acknowledged that OSA now affects millions of people worldwide. This Monograph considers this high-impact condition from four different perspectives: pathogenesis; at-risk populations; clinical scenarios; and treatment and management. Comprehensive and up-to-date chapters provide the reader with a concise overview of OSA, making this book a useful reference for pulmonologists concerned with the management of this disease.