title: Sinus node arrest and sino--atrial block.
abstract: Current epidemiological data suggest that sinus node dysfunction is a relatively uncommon condition in the pilot age group. Symptomatic pauses of any mechanism suggest disqualification from flying duties. Asymptomatic pauses (representing sino-atrial block or sinus node arrest) demand further investigation and regular follow-up. Idiopathic pauses greater than 2.5 s on an ambulatory ECG is abnormal and is likely to deny flying status.
mesh_terms: D000337:Aerospace Medicine; D000553:Ambulatory Care; D002908:Chronic Disease; D003937:Diagnosis, Differential; D004562:Electrocardiography; D005500:Follow-Up Studies; D006327:Heart Block / Q000175:diagnosis*; D006801:Humans; D012804:Sick Sinus Syndrome / Q000175:diagnosis*; D012848:Sinoatrial Block / Q000175:diagnosis*; D012849:Sinoatrial Node / Q000503:physiopathology