Left bundle branch block and increased transverse:frontal plane QRS voltage ratio in severe left ventricular dysfunction.
Six patients with complete left bundle branch block and an increase in the transverse:frontal plane QRS voltage ratio are described. All these patients presented with congestive heart failure which was due to severe left ventricular dysfunction.
Cardiac Department, National University Hospital, Singapore, Singapore.
B L
BL
Chia
Y T
YT
Lim
H C
HC
Tan
P C
PC
Yan
D000368:Aged; D002037:Bundle-Branch Block / Q000150:complications / Q000503:physiopathology*; D004562:Electrocardiography; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D018487:Ventricular Dysfunction, Left / Q000150:complications / Q000503:physiopathology*