title: Recent advances in obesity hypoventilation syndrome.
abstract: Obesity hypoventilation syndrome (OHS) consists of a combination of obesity and chronic hypercapnia accompanied by sleep-disordered breathing. During the last 3 decades, the prevalence of extreme obesity has markedly increased in the United States and other countries. With a global epidemic of obesity, the prevalence of OHS is bound to increase. Patients with OHS have a lower quality of life with increased health-care expenses and are at a higher risk for the development of pulmonary hypertension and early mortality compared to eucapnic patients with sleep-disordered breathing. Despite the significant morbidity and mortality associated with this syndrome, it is often unrecognized and treatment is frequently delayed. Clinicians must maintain a high index of suspicion since early recognition and treatment reduces the high burden of morbidity and mortality associated with this syndrome. In this review, we will discuss the definition and clinical presentation of OHS, provide a summary of its prevalence, review the current understanding of the pathophysiology, and discuss the recent advances in the therapeutic options.
authors.affiliation: Section of Pulmonary and Critical Care Medicine, The University of Chicago Pritzker School of Medicine, 5841 S Maryland Ave, MC 0999/Room L11B, Chicago, IL 60637, USA. bmokhles@medicine.bsd.uchicago.edu
authors.forename: Babak
authors.initials: B
authors.lastname: Mokhlesi
authors.forename: Aiman
authors.initials: A
authors.lastname: Tulaimat
mesh_terms: D000086:Acetazolamide / Q000627:therapeutic use; D000465:Algorithms; D000818:Animals; D050110:Bariatric Surgery; D015897:Comorbidity; D045422:Continuous Positive Airway Pressure; D003280:Contraceptives, Oral, Synthetic / Q000627:therapeutic use; D004232:Diuretics / Q000627:therapeutic use; D006801:Humans; D006935:Hypercapnia / Q000209:etiology / Q000628:therapy; D020738:Leptin / Q000502:physiology; D008525:Medroxyprogesterone / Q000627:therapeutic use; D010845:Obesity Hypoventilation Syndrome / Q000175:diagnosis / Q000453:epidemiology / Q000503:physiopathology* / Q000628:therapy*; D011175:Positive-Pressure Respiration; D011788:Quality of Life; D012132:Respiratory Muscles / Q000503:physiopathology; D014139:Tracheostomy; D016896:Treatment Outcome
chemical_list: D003280:Contraceptives, Oral, Synthetic; D004232:Diuretics; D020738:Leptin; D008525:Medroxyprogesterone; D000086:Acetazolamide