. Author manuscript; available in PMC: 2013 Jul 10.

Published in final edited form as: J Am Coll Cardiol. 2012 Jul 10;60(2):96–105. doi: 10.1016/j.jacc.2012.02.054

Table 3.

Prevalence of “STEMI-equivalent” AMI in angiographic studies of patients with suspected ACS and LBBB

Study	Year	No. of patients with occluded culprit artery/total with LBBB (%)
		New or presumed new LBBB	Old LBBB
Larson et al. (35)	2007	20/36 (56)	n/a
Chang et al. (31)	2009	4/55 (7)	7/136 (5)
Lopes et al. (36)	2011	60/98 (61)	n/a
Jain et al. (42)	2011	5/36 (14)	n/a

Total (n=4)		89/225 (40)	7/136 (5)

ACS=acute coronary syndrome; AMI= acute myocardial infarction; LBBB= left bundle branch block; n/a=not applicable; STEMI= ST-elevation myocardial infarction