title: Case 4: a patient with symptomatic bradycardia.
abstract: Both the clinical and electrocardiographic presentations of sick sinus syndrome are highly variable. As illustrated by this month's case of Interactive Grand Rounds, the initial challenge to the clinician is to establish the correct diagnosis in the patient who has symptomatic bradyarrhythmias.
authors.affiliation: Department of Medicine, Loyola University Medical Center, Maywood, Illinois 60153, USA.
authors.forename: D J
authors.initials: DJ
authors.lastname: Newton
authors.forename: B
authors.initials: B
authors.lastname: Olshansky
authors.forename: J P
authors.initials: JP
authors.lastname: Ornato
authors.forename: V E
authors.initials: VE
authors.lastname: Friedewald
mesh_terms: D000368:Aged; D002304:Cardiac Pacing, Artificial / Q000379:methods; D005260:Female; D006801:Humans; D010138:Pacemaker, Artificial; D012804:Sick Sinus Syndrome / Q000175:diagnosis / Q000628:therapy