title: Rate-dependent left bundle branch block during anaesthesia.
abstract: Rate-dependent left bundle branch block during general anaesthesia is rare. Its occurrence makes electrocardiographic diagnosis of acute myocardial ischaemia or infarction difficult. It can also be confused with a slow rate ventricular tachycardia. We present a case of rate-dependent left bundle branch block in a patient with no previous history of ischaemic heart disease. Carotid sinus massage resulted in a decrease in heart rate and reversion to normal sinus rhythm.
authors.affiliation: Department of Anaesthesiology and Critical Care, University College of Medical Sciences and GTB Hospital, Shahadra, Delhi, India.
authors.forename: A
authors.initials: A
authors.lastname: Tyagi
authors.forename: A K
authors.initials: AK
authors.lastname: Sethi
authors.forename: V
authors.initials: V
authors.lastname: Agarwal
authors.forename: M
authors.initials: M
authors.lastname: Mohta
mesh_terms: D000768:Anesthesia, General / Q000009:adverse effects* / Q000379:methods; D002037:Bundle-Branch Block / Q000175:diagnosis* / Q000209:etiology* / Q000628:therapy; D002763:Cholecystectomy / Q000379:methods; D002769:Cholelithiasis / Q000175:diagnosis / Q000601:surgery; D004562:Electrocardiography; D005260:Female; D005500:Follow-Up Studies; D006329:Heart Conduction System; D006339:Heart Rate / Q000502:physiology; D006801:Humans; D008875:Middle Aged; D035583:Rare Diseases; D018570:Risk Assessment; D012720:Severity of Illness Index; D016896:Treatment Outcome