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  • Title: [Mammary-coronary anastomosis: a new technique of approach through the brachial route for angiographic study and angioplasty].
    Author: Galiano NE, Haddad JL, Salgado AA, San Martin LE, Zapata CA, Silva JP, Bittencourt D.
    Journal: Arq Bras Cardiol; 1991 Nov; 57(5):371-4. PubMed ID: 1824206.
    Abstract:
    PURPOSE: A new technique of mammary artery catheterization, by a brachial artery approach, utilizing a pre-molded conventional Sones catheter is described. METHODS: In a series of 300 patients, 308 procedures were performed. Three hundred internal mammary-coronary anastomosis were studied. In eight cases angioplasty were performed, five in the anterior descending artery and three in the internal mammary artery itself, with recanalization of one of the three cases. The approach was through the brachial artery homolateral to the anastomosed mammary artery. After the conventional coronarographic and bypass studies were performed, the catheter was withdrawn and pre-molded, forming a closed loop of approximately 10 mm in its distal extremity. The loop was introduced through the arteriotomy reaching the origin of the vertebral artery. The internal mammary artery was then catheterized utilizing rotation and traction movements. In the percutaneous transluminal coronary angioplasty (PTCA) procedures, the Sones catheter was replaced by a Myler right coronary catheter with a 260 cm metallic wire. RESULTS: In the 308 procedures, the internal mammary artery was catheterized in 305 instances (99.03%). In the remaining three cases selective catheterization of the internal mammary artery was not possible. In these three cases there was extreme tortuosity of the subclavian artery. The only complication observed in this series was thrombosis of the brachial artery in two cases (90.65%). In the eight patients submitted to PTCA the existing lesions were successfully dilated. CONCLUSION: Catheterization of the internal mammary artery through a brachial approach utilizing a pre-molded Sones catheter was an efficient procedure, with low incidence of complications. This approach could be the elective technique in the services that habitually utilize the brachial artery approach. It could be also an alternative for those utilizing the Judkins technique, whenever the internal mammary artery catheterization is impossible due to the anatomic characteristics of the patient.
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