title: Case report: type I second-degree AV block masquerading as Type II block.
abstract: This report describes a patient with type I second-degree atrioventricular block and sequences consistent with type II block according to widely accepted criteria. The electrocardiograms illustrate the importance of deductive reasoning and the clinical context in the diagnostic evaluation of perplexing forms of second-degree AV block.
authors.affiliation: Genesee Hospital and University of Rochester School of Medicine and Dentistry, Rochester NY, USA. ssbarold@aol.com
authors.forename: S S
authors.initials: SS
authors.lastname: Barold
mesh_terms: D000328:Adult; D003937:Diagnosis, Differential; D004562:Electrocardiography; D015716:Electrocardiography, Ambulatory; D006327:Heart Block / Q000145:classification / Q000175:diagnosis*; D006801:Humans; D008297:Male; D012720:Severity of Illness Index