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Eur J Cardiothorac Surg 2002;21:794-799
© 2002 Elsevier Science NL

The results of radial artery Y-graft for complete arterial revascularization

Department of Cardiovascular Surgery, Gülhane Military Medical Academy, Ankara, Turkey

Received 21 November 2001; received in revised form 4 February 2002; accepted 6 February 2002.

* Corresponding author. Tel.: +90-312-3045203; fax: +90-312-3229494
e-mail: atyilmaz{at}gata.edu.tr

Objective: Harvesting of multiple arterial grafts is commonly associated with prolonged operating times and increased trauma in complete arterial coronary artery bypass grafting (CABG). Using sequential grafting techniques, CABG is possible with only two arterial grafts in multi-vessel coronary artery disease (CAD). However, sequential grafting may not be convenient for all circumstances and sometimes surgical technique may be challenging. We present our experience in the use of radial artery (RA) Y-graft on a routine basis. Methods: Between January 1996 and November 2001, 127 patients (aged 63±8 years) with the diagnosis of multi-vessel disease underwent complete arterial revascularization using left internal mammarian artery (LIMA) and RA. Left ventricular ejection fraction ranged from 23 to 65% (mean 51±11%). Triple-vessel disease was present in 73.2% of patients. We used the division technique of RA during harvesting and formation of one or more composite Y-grafts of the RA itself to allow end-side rather than sequential anastomoses without any significant decrease the usable conduit length. The results of this technique were compared with the data of patients (n=109) who underwent completely arterial CABG with the use of the multiple arterial grafts in the same period. Results: LIMA was anastomosed to the left anterior descending coronary artery (LAD) system in all patients. Two to four (mean 2.8±0.6) anastomoses were performed with RA Y-graft per patient. Proximal end of the radial graft was anastomosed to LIMA (60.6%) or aorta (39.4%). Mean operating time was 185 (45 min; bypass time, 68±23 min; and cross-clamp time, 49±17 min). Perioperative intraaortic balloon pump was necessary in five patients (3.9%). There was no operative mortality or morbidity. During the follow-up period of 2–30 months, none of the patients had any complication. Postoperative coronary angiography in 54 patients (42.5%) documented excellent early patency rates (LIMA 100%, and RA 98.1%). Conclusions: We believe that keeping our technique in their armamentarium will be useful for cardiac surgeons as an alternative method during complete arterial revascularization. This approach allows for complete arterial revascularization in multi-vessel CAD using only single IMA and RA grafts with excellent early results.

Key Words: Complete arterial revascularization • Radial artery • Y-graft technique

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