Intermittent anterior divisional block and far advanced right bundle branch block induced by vasospasm during exercise testing.
A patient is reported in whom exercise induced reversible ischemic left anterior fascicular block and far advanced right bundle branch block. Master's two step exercise test for pre-operative check-up revealed significant ST elevation in leads V1-5, negative U waves in leads V3-5 and fascicular blocks with retrosternal anginal chest pain. Long acting nitrate and nicorandil relieved the fascicular blocks.
Kanemoto
N
N
Tokai University School of Medicine, Department of Internal Medicine Bohseidai, Kanagawa, Japan.
Kawai
K
K
Hosokawa
J
J
Tagawa
R
R
Goto
Y
Y
D000368:Aged; D002037:Bundle-Branch Block / Q000188:drug therapy / Q000209:etiology; D003329:Coronary Vasospasm / Q000150:complications*; D004562:Electrocardiography; D005080:Exercise Test; D006327:Heart Block / Q000188:drug therapy / Q000209:etiology*; D006801:Humans; D008297:Male; D009536:Niacinamide / Q000031:analogs & derivatives / Q000627:therapeutic use; D020108:Nicorandil; D009566:Nitrates / Q000627:therapeutic use
D009566:Nitrates; D009536:Niacinamide; D020108:Nicorandil