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Oclusäo de ramos secundários após angioplastia da artéria coronária descendente anterior / Occlusion of secondary branches after angioplasthy of the left descending coronary artery
Araújo, Edmur Carlos; Sousa, Amanda Guerra M. R; Nicolela Junior, Eduardo L; Cano, Manuel N; Maldonado, Galo; Feres, Fausto; Mattos, Luis Alberto P; Pinto, Ibraim M. F; Tanajura, Luiz Fernando L; Fontes, Valmir F; Sousa, J. Eduardo M. R.
  • Araújo, Edmur Carlos; s.af
  • Sousa, Amanda Guerra M. R; s.af
  • Nicolela Junior, Eduardo L; s.af
  • Cano, Manuel N; s.af
  • Maldonado, Galo; s.af
  • Feres, Fausto; s.af
  • Mattos, Luis Alberto P; s.af
  • Pinto, Ibraim M. F; s.af
  • Tanajura, Luiz Fernando L; s.af
  • Fontes, Valmir F; s.af
  • Sousa, J. Eduardo M. R; s.af
Arq. bras. cardiol ; 54(5): 313-317, maio 1990. ilus
Article in Portuguese | LILACS | ID: lil-88011
RESUMO
Avaliar a incidência de oclusäo de ramos secundários em pacientes com lesäo única da artéria descendente anterior, em que a angioplastia coronária foi aplicada pela primeira vez e com sucesso. Duzentos e treze casos com ramos secundários em pacientes com lesäo única da ar considerados " em risco" por estarem envolvidos na lesäo (grupo I - GI; 85 casos - 39,9%); ou por terem sido atingidos pela insuflaçäo do baläo (grupo II - GII, 128 casos - 61,5%). Corresponderam a GI - 54 ramos septais (S) e 31 ramos diaggonais (Dg), sendo que 36% tinham evidência angiográfica de doença ostial; GII - 77 S e 51 Dg, com 7,8% de doença ostial. Oclusäo de 7 (3,3%) ramos secundários " em "em risco", 4 (4,7%) do GI e 3 (2,3%) do GII. Na evoluçäo clínica destes 7 casos observaram-se angina de peito em 57% e alteraçöes isquêmicas discretas ao eletrocardiograma em 28.6%. Näo houve qualquer alteraçäo enzímica. A oclusäo foi clinicamente silenciosa em 43% dos casos. A oclusäo de ramos secundários é de baixa incidência, ocorre com maior freqüência nos septais, que nascem da lesäo e nos que têm doença ostial, sendo silenciosa em quase metade dos pacientes ou acompanhada de alteraçeos isquêmicas.
ABSTRACT

Purpose:

To evaluate the incidence and clinical presentation of the occlusion of such secondary branches in patients with single vessel coronary artery disease in the left anterior descending artery, who underwent a first elective and successful PTCA. Material and

Methods:

Two hundred and thirteen side branches of 121 patients considered to be at risk. They were divided into group I (GI85 side branches, 39.9%), if they originated from the atherosclerotic site; and group II (GII120 side branches, 61.5%), if their origin would be involved during the balloon inflation. In the GI there were 54 septal branches and 3.1 diagonal branches, and 36& had angiographic evidence of ostium disease. GII was constituted by 77 septal and 51 diagonal branches, and 7.8% of them had evidence of ostium disease.

Results:

Seven side branches (3.3%) at risk occluded, 4 from GI (4.7%) and 3 (2.3%) from GII. As for the clinical presentation, 57% of them had angina, where as 28.6% showed minor abnormalities in the ECG. No patient elevated its serum CK-MB, and silent occlusion cccurred in 43% if them.

Conclusion:

Occlusion of side branches is a low incidence phenomenon, which happens more often in septal branches with ostium disease that originates from the atherosclerotic site; that about half of the patient had silent occlusion (43%) or mild ischemic manifestations
Subject(s)

Full text: Available Index: LILACS (Americas) Main subject: Coronary Artery Disease / Angioplasty, Balloon / Coronary Disease / Coronary Vessels Limits: Adult / Aged80 / Female / Humans / Male Language: Portuguese Journal: Arq. bras. cardiol Journal subject: Cardiology Year: 1990 Type: Article

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Full text: Available Index: LILACS (Americas) Main subject: Coronary Artery Disease / Angioplasty, Balloon / Coronary Disease / Coronary Vessels Limits: Adult / Aged80 / Female / Humans / Male Language: Portuguese Journal: Arq. bras. cardiol Journal subject: Cardiology Year: 1990 Type: Article