[Detection of myocardial ischemia during dobutamine stress echocardiography. Correlation with coronary cineangiography].
OBJECTIVE
To detect myocardial ischemia during dobutamine stress echocardiography (DSE).


METHODS
Two hundred and seventy one patients were studied; 63 (23%) underwent coronary angiography within a month of DSE. Angiograms were analyzed independently by 3 angiographers, and coronary lesions larger than 50% of luminal occlusion were considered likely to cause ischemia.


RESULTS
The global sensitivity and specificity were 95% and 75% respectively, with 89% accuracy. Of 43 patients showing obstructive coronary artery disease, there were 2 false negatives. One of 5 false positives had ischemic cardiomyopathy and another a technically difficult exam. The symptoms and side effects in decreasing order of occurrence are as follows: palpitation 46%; arrhythmia 24%; mild hypotension 24%; chest pain 8%; hypertension 5%; facial paresthesia 4%; chills 1.8%; nausea 1.8%; headache 1.4%; dyspnea 0.4% and severe hypotension 0.4%.


CONCLUSIONS
Considering the results, the small number of complications and the feasibility, DSE seems to be a safe and promising method for detecting myocardial ischemia.
Mathias Júnior
W
W
Hospital Unicor, São Paulo.
Doya
E H
EH
Ribeiro
E E
EE
Silva
L A
LA
Gasques
A
A
Salvadori
R A
RA
Duprat Filho
R
R
D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D017023:Coronary Angiography; D004280:Dobutamine / Q000008:administration & dosage; D004452:Echocardiography / Q000379:methods*; D005080:Exercise Test / Q000379:methods; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D017202:Myocardial Ischemia / Q000000981:diagnostic imaging*; D012680:Sensitivity and Specificity
D004280:Dobutamine
Detecção de isquemia miocárdica através de ecocardiografia de estresse com dobutamina. Correlação com cinecoronariografia.