Snapshot A 49-year-old man with morbid obesity presents to the clinic complaining of heart palpitations and a pre-syncopal episode. An EKG at the office demonstrates some premature ventricular beats. The patient states that he feels more tired than usual, and it is difficult to stay awake lately. He denies any rhythmic jerking, chest pain, or shortness of breath. Physical examination was unremarkable. Introduction Clinical definition login to view 7 more bullets Epidemiology login to view 10 more bullets Pathogenesis login to view 7 more bullets Presentation Symptoms login to view 4 more bullets Physical exam login to view 5 more bullets Studies Home sleep apnea testing login to view 1 more bullet In laboratory polysomnography login to view 2 more bullets Laboratory studies login to view 3 more bullets Diagnostic criteria login to view 3 more bullets Differential Narcolepsy login to view 3 more bullets Respiratory disease (e.g., chronic obstructive lung disease) login to view 2 more bullets Treatment OSA login to view 10 more bullets CSA login to view 3 more bullets Complications Arrhythmias login to view 3 more bullets Daytime fatigue (increased risk for motor vehicle accidents) Pulmonary hypertension login to view 1 more bullet Type 2 diabetes and other metabolic conditions Severe OSA may be associated with CAD Right ventricular failure