Determining whether acute myocardial infarction in patients with previous coronary bypass grafting is the result of narrowing of a bypass conduit or of a native coronary artery.
The relation between electrocardiographic changes and the infarct-related coronary artery was studied in 76 patients with acute myocardial infarction 77 +/- 49 months after coronary artery bypass surgery in a retrospective series. When the infarct-related coronary artery was a graft, the electrocardiogram showed ST elevation and new Q waves less often; although the infarction was smaller, these patients presented a worse in-hospital prognosis.
Moreno
R
R
Cardiology Department, Hospital Universitario Gregorio Marañon, Madrid, Spain.
López de Sá
E
E
López-Sendón
J
J
Rubio
R
R
Bobadilla
J F
JF
García
E J
EJ
Delcán
J L
JL
D000714:Anastomosis, Surgical / Q000009:adverse effects; D001026:Coronary Artery Bypass / Q000009:adverse effects; D003331:Coronary Vessels / Q000473:pathology*; D004562:Electrocardiography; D005260:Female; D005500:Follow-Up Studies; D006760:Hospitalization; D006801:Humans; D008297:Male; D008875:Middle Aged; D009203:Myocardial Infarction / Q000175:diagnosis / Q000473:pathology* / Q000601:surgery; D011379:Prognosis; D012008:Recurrence; D012189:Retrospective Studies; D012501:Saphenous Vein / Q000473:pathology / Q000637:transplantation; D014654:Vascular Patency