[Diagnosis of perioperative myocardial infarction by cardiac troponin T following coronary artery bypass grafting].
The determinations of cardiac troponin T provide the highest diagnostic efficiency for the detection of myocardial cell necrosis. To assess perioperative myocardial infarction, serum levels of cardiac troponin T were determined in 14 patients undergoing coronary artery bypass grafting (CABG). The patients were divided into two groups: group I (n = 9), those whose troponin T was less than 1.00 ng/ml on the first postoperative day; group II (n = 5), those whose troponin T was more than 1.00 ng/ml on the first postoperative day. Troponin T levels in group II patients were significantly higher than in group I from the second to the seventh postoperative day. Two patients in group II had specific changes on the electrocardiogram detecting perioperative myocardial infarction as a new Q wave and R wave reduction. These results suggest that troponin T is a valuable marker of perioperative myocardial infarction following CABG.
Azuhata
K
K
Department of Cariovascular Surgery, Tokyo Women's Medical College, Japan.
Suma
K
K
Shiroma
K
K
Mitsui
K
K
Miyawaki
F
F
D000328:Adult; D000368:Aged; D015415:Biomarkers / Q000097:blood; D001026:Coronary Artery Bypass; D005260:Female; D006801:Humans; D007431:Intraoperative Complications / Q000175:diagnosis*; D008297:Male; D008875:Middle Aged; D009203:Myocardial Infarction / Q000175:diagnosis*; D009206:Myocardium / Q000378:metabolism*; D011237:Predictive Value of Tests; D014336:Troponin / Q000097:blood*; D020107:Troponin T
D015415:Biomarkers; D014336:Troponin; D020107:Troponin T