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Radial artery grafts: surgical anatomy and harvesting techniques(1)
Z Galajda1, E Jagamos, T Maros
1Department of Cardiac Surgery, Medical and Health Science Center, University of Debrecen, P.O. Box 4, Hungary. galajda@jaguar.dote.hu
Insights
Radial artery grafts show superior patency for coronary bypass surgery compared to traditional venous grafts. A minimally invasive harvesting technique significantly reduces neurological complications like temporary dysesthesia.
Area of Science:
- Cardiovascular Surgery
- Vascular Grafting
- Minimally Invasive Techniques
Background:
- The radial artery is increasingly utilized as a graft in coronary artery bypass grafting (CABG).
- Existing data suggest radial artery grafts offer better patency rates than traditional venous grafts.
- Surgical techniques for radial artery harvesting impact patient outcomes, particularly neurological complications.
Purpose of the Study:
- To compare the safety and efficacy of a novel minimally invasive radial artery harvesting technique versus the traditional method in CABG.
- To evaluate the incidence of neurological complications, specifically temporary dysesthesia, associated with each harvesting technique.
Main Methods:
- A retrospective analysis of 515 patients undergoing CABG using radial artery grafts between 1990 and 2000.
- Radial artery harvesting was performed using either a traditional open technique or a newly developed minimally invasive approach in 50 patients.
- One-year follow-up assessments, including neurological examinations, were conducted on 197 patients.
Main Results:
- No ischemic complications in the forearm or hand were observed with either harvesting method.
- Temporary dysesthesia occurred in 16.5% of patients following traditional harvesting versus 2% after the minimally invasive procedure.
- All neurological complications were temporary, resolving within 1-12 months, with no definitive neurological deficits reported.
Conclusions:
- Both traditional and minimally invasive radial artery harvesting techniques are safe for CABG.
- The minimally invasive technique demonstrates a significantly lower rate of temporary neurological complications.
- Further development and adoption of the minimally invasive approach for radial artery harvesting are recommended to improve patient outcomes.
Abstract:
At present more and more surgeons are using the radial artery as a graft for coronary bypass. The statistics until now show that the patency of radial grafts exceeds that of the venous grafts used up to the present. In our department we used radial artery for coronary bypass in 515 patients between January 1990 and December 2000. The radial artery harvesting with minimally invasive technique developed by us was applied in 50 of these patients while the rest were performed with the traditional method. No ischemic complications occurred in forearm or hand following either of the methods. One year after the operation we carried out control examinations on 197 consecutive patients. Our surveys showed that following the traditional technique of radial artery harvesting neurological complications (temporary dysaesthesia) occurred in 16.5% of the patients. After the minimally invasive procedure, temporary dysaesthesia occurred in one case (2%). These complaints ceased within 1-12 months (an average of 3.8 months). Definitive neurological complications did not occur in any of the patients. In summation, we experienced that both operating techniques can be safely applied. The proportion of temporary neurological complications is higher following the traditional procedure, therefore, further development and application of the minimally invasive procedure should be considered.