title: When is a PR interval too long?
authors.affiliation: Cardiology Department, Homerton University Hospital, London, UK.
authors.forename: Anil
authors.initials: A
authors.lastname: Ramoutar
authors.affiliation: Cardiology Department, Homerton University Hospital, London, UK.
authors.forename: Timothy
authors.initials: T
authors.lastname: Bowker
authors.affiliation: Cardiology Department, Homerton University Hospital, London, UK.
authors.forename: Arvinder
authors.initials: A
authors.lastname: Kurbaan
authors.affiliation: Cardiology Department, Homerton University Hospital, London, UK. Electronic address: hanbinxiao@hotmail.com.
authors.forename: Han B
authors.initials: HB
authors.lastname: Xiao
mesh_terms: D000328:Adult; D054537:Atrioventricular Block / Q000175:diagnosis / Q000503:physiopathology* / Q000628:therapy; D002304:Cardiac Pacing, Artificial / Q000379:methods*; D004562:Electrocardiography; D005080:Exercise Test; D005260:Female; D006339:Heart Rate / Q000502:physiology; D006801:Humans; D008875:Middle Aged
keywords: First degree AV block; First-degree heart block; PR interval; Permanent pacemaker; Stress echocardiogram