The interpositional bypass with a parietal branch of superficial temporal artery graft for symptomatic atherosclerotic anterior cerebral artery stenosis or occlusion

• DOI: 10.3389/fneur.2024.1361151
• Publication Date: 2024-04-05T04:58:41Z
• Authors: Chuyang Tai; Cong Ling; Tengchao Huang; Baoyu Zhang; Yang Yang; Lei Wei; Haiwan Wu; Ni Mo; Hui Wang; Chuan Chen
• Keywords: Superficial temporal artery; Bypass surgery; Stroke; Anterior cerebral artery

Background For nonmoyamoya patients with anterior cerebral artery (ACA) stenosis or occlusion, whether direct revascularization of the ACA territory can prevent stroke is still unclear. The objective this study was to investigate efficacy and safety a parietal branch superficial temporal artery-interposed artery-to-ACA bypass (PISAB) for preventing in symptomatic atherosclerotic occlusion (SAASO). Methods We retrospectively analyzed data from SAASO who had undergone PISAB our center between April 2016 November 2021. rates patency, satisfaction (revascularization grades A B) bypass, perioperative complications, recurrence ischemic stroke, changes flow, improvements blood perfusion were analyzed. Results total 19 involved study. Sixteen out (84.2%) free any events after surgery. Only 3 (15.8%) recurrent postoperatively. Two (10.5%) surgery-related complications occurred, including hyperperfusion syndrome minor stroke. No skin occurred. average follow-up period 50.6 ± 18.3 months. flow rate significantly increased half year surgery (56.2 8.0 mL/min vs. 44.3 5.3 mL/min, p < 0.001). ratio ipsilateral/contralateral mean transit time superior frontal gyrus decreased (1.08 0.07 1.23 0.05, 0.001) continued decrease 6 months (1.05 0.04 1.08 0.07, = 0.002). patency 94.7% (18/19) 2 years 89.5% (17/19). Conclusion results indicate that PISAB, as safe effectively reduce risk patients. More precise conclusions will require randomized control studies.