Purpose: To analyze the clinical and anatomical outcome after subclavian carotid transposition and to compare the results with other surgical procedures.
Methods: The hospital records of 51 patients undergoing subclavian carotid transposition were reviewed retrospectively for preoperative symptoms, Doppler and arteriography findings, preoperative details and postoperative complications. Long-term patency and symptoms were determined by physical and Doppler examination during the follow-up.
Results: The indications for subclavian transposition were: vertebrobasilar ischemia (24%), ischemia of the upper limb (45%), asymptomatic occlusion or non-specific symptoms (31%). Subclavian artery transposition was associated with vertebral revascularization (7 cases), and homolateral carotid surgery (11 cases). There were no deaths. Early occlusions occurred in two cases, one required reoperation. Minor complications were observed in 21% of the patients with no permanent morbidity. Overall patency after a mean 54 months follow-up was 96%.
Conclusion: Subclavian carotid transposition is a good method for the treatment of proximal subclavian occlusive disease. Long-term patency can be achieved. Carotido-subclavian bypass should be limited to cases with extensive occlusive lesions as patency rate is lower.
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