[Exercise radionuclide ventriculography in evaluating successful percutaneous transluminal coronary angioplasty (PTCA)].
To evaluate late success of PTCA in 29 patients with coronary artery disease, exercise radionuclide ventriculography was performed. Twenty-nine patients were classified into two groups according to the presence of restenosis (Group N: 19 patients without restenosis, Group R: 10 patients with restenosis). LVEF improved significantly in Group N, and the sensitivity, specificity and overall accuracy for detecting restenosis were 100%, 68% and 79%, respectively. Regional wall motion abnormality during exercise did not worsened in Group N, and the sensitivity, specificity and overall accuracy for detecting restenosis were 89%, 96%, and 94%, respectively. The left ventricular end-systolic volume during exercise increased in group R but decreased in Group N. The exercise response of the ratio of systolic blood pressure to end-systolic volume in Group N was significantly larger than that of Group R, and was considered to be useful parameter for detecting restenosis.
Koyama
T
T
Konishi
T
T
Okamoto
S
S
Aoki
T
T
Inden
M
M
Futagami
Y
Y
Hamada
M
M
Nakano
T
T
D000328:Adult; D000368:Aged; D015906:Angioplasty, Balloon, Coronary; D001794:Blood Pressure; D003327:Coronary Disease / Q000000981:diagnostic imaging / Q000503:physiopathology / Q000628:therapy*; D015444:Exercise; D005260:Female; D006339:Heart Rate; D006801:Humans; D008297:Male; D008875:Middle Aged; D009200:Myocardial Contraction; D015635:Radionuclide Ventriculography