NICHOLAS P. DEPASQUALE, M.D.; MICHAEL S. BRUNO, M.D.
Inductive reasoning supported by experimental study and clinicopathologic correlation has yielded electrocardiographic criteria for the diagnosis of various combinations of block within the three divisions of the intraventricular conduction system (1-3). A central issue regarding the implications of intraventricular block was raised a few years ago, when it was reported that most of a group of patients with complete heart block had combined right bundle-branch block and left anterior hemiblock (bifascicular block) during orthograde conduction (4). As a result of this and similar studies physicians began to question whether patients with bifascicular block should have prophylactic permanent pacemaker insertion or
DEPASQUALE NP, BRUNO MS. To Pace or Not to Pace. Ann Intern Med. ;81:395–396. doi: 10.7326/0003-4819-81-3-395
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Published: Ann Intern Med. 1974;81(3):395-396.
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