Clinical outcomes following simultaneous supra-aortic and aortovisceral artery bypass in patients with type V Takayasu arteritis.

Objective: Type V Takayasu arteritis (TAK) is the most extensive form of this large-vessel vasculitis, frequently necessitating complex surgical management due to its multiterritory arterial involvement. This study aims to evaluate the clinical efficacy and safety of 1-stage supra-aortic and aortovisceral artery (SAVA) bypass in patients with Numano type V TAK. Methods: We retrospectively reviewed all patients diagnosed with type V TAK undergoing simultaneous SAVA bypass at 6 tertiary centers in China between February 2017 and April 2024. These patients were selected from a multicenter surgical database of 264 patients with TAK. Demographics and characteristics were collected. The primary end point was mortality within 30 days after surgery; secondary end points included graft patency, major surgery-related complications, and overall survival. All patients were prospectively followed, and outcomes were analyzed. Results: A total of 12 patients, with 115 SAVA segments affected by TAK, underwent reconstruction of 42 arteries. These reconstructions utilized 14 autologous great saphenous vein grafts and 28 prosthetic grafts with a mean operative time of 514 ± 101 minutes. The 30-day survival rate was 100%. During a mean follow-up duration of 47.4 ± 28.5 months, 4 cases of graft restenosis were detected, of which 1 was successfully resolved via surgical thrombectomy and 3 were managed conservatively. No late mortality or major complications was observed. Postoperatively, systolic blood pressure decreased significantly, and patients achieved sustained symptom relief with improved health-related quality of life. Conclusions: With appropriate perioperative management and surgical planning, the simultaneous reconstruction of SAVA in type V TAK can be performed safely and effectively.