[Gammagraphy of the myocardial perfusion in patients with the manifestations of post-coronary angioplasty ischemia].
The evolution of 41 patients (36 men and 5 women), symptomatic or with positive ergometric tests post percutaneous transluminal coronary angioplasty, was studied to detect residual ischemia. Thallium-201 myocardial scintigrams were recorded six months after angioplasty. Stress induced ischemia in 22 (54%) cases (6 with multivessel disease and 11 with previous angina) was demonstrated. Coronary angiography was undertaken in 12 of ischemic cases, demonstrating restenosis in 7, atherosclerotic disease progression in 1 and no significant coronary lesions (with less 50% lumen vessel occlusion) in 4. The greatest lesions number (70%) corresponded to the left anterior descending coronary artery. In patients with restenosis, angina onset and ST segment depression with stress, were significant. The maximal load and the maximal heart rate percent achieved were less. Myocardial scintigraphy is a non-invasive method of great value to the post-angioplasty residual ischemia diagnosis, principally in those patients in whom angina reappears.
Instituto de Cardiología y Cirugía Cardiovascular, La Habana, Cuba.
A
A
Peix González
L
L
Llerena Rojas
L R
LR
Llerena Rojas
R
R
Fernández Felipe
F
F
Ponce Vicente
A M
AM
Maltas Pineda
D000328:Adult; D000368:Aged; D000704:Analysis of Variance; D015906:Angioplasty, Balloon, Coronary / Q000706:statistics & numerical data; D016009:Chi-Square Distribution; D017023:Coronary Angiography; D003326:Coronary Circulation; D005260:Female; D006321:Heart / Q000000981:diagnostic imaging*; D006801:Humans; D008297:Male; D008875:Middle Aged; D017202:Myocardial Ischemia / Q000000981:diagnostic imaging* / Q000453:epidemiology / Q000628:therapy; D011877:Radionuclide Imaging; D013794:Thallium Radioisotopes; D013997:Time Factors
D013794:Thallium Radioisotopes
Gammagrafía de perfusión miocárdica en pacientes con manifestaciones de isquemia post-angioplastía coronaria.