2 ? Obesity and Sleep- Disordered Breathing
Review series Obesity and the lung: 2 ? Obesity and sleep- Thorax: first published as 10.1136/thx.2007.086843 on 28 July 2008. Downloaded from disordered breathing F Crummy,1 A J Piper,2 M T Naughton3 1 Regional Respiratory Centre, ABSTRACT include excessive daytime sleepiness, unrefreshing Belfast City Hospital, Belfast, 2 As the prevalence of obesity increases in both the sleep, nocturia, loud snoring (above 80 dB), wit- UK; Royal Prince Alfred developed and the developing world, the respiratory nessed apnoeas and nocturnal choking. Signs Hospital, Woolcock Institute of Medical Research, University of consequences are often underappreciated. This review include systemic (or difficult to control) hyperten- Sydney, Sydney, New South discusses the presentation, pathogenesis, diagnosis and sion, premature cardiovascular disease, atrial fibril- Wales, Australia; 3 General management of the obstructive sleep apnoea, overlap and lation and heart failure.8 The obstructive sleep Respiratory and Sleep Medicine, obesity hypoventilation syndromes. Patients with these apnoea syndrome (OSAS) is arbitrarily defined by Department of Allergy, Immunology and Respiratory conditions will commonly present to respiratory physi- .5 apnoeas or hypopnoeas per hour plus symp- Medicine, Alfred Hospital and cians, and recognition and effective treatment have toms of daytime sleepiness. Monash University, Melbourne, important benefits in terms of patient quality of life and Almost 20 years ago the prevalence of OSA and Victoria, Australia reduction in healthcare
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