Document resource
Introduction For those aneurysms that are inaccessible by a microcatheter due to a narrow neck or a thin and tortuous parent artery, endovascular embolization is apparently impossible and risky.Aim of study We presented our experience of using micro-guidewire electrocoagulation for the treatment of aneurysms that were inaccessible by a microcatheter.Method Eleven consecutive patients who underwent endovascular electrocoagulation for the treatment of aneurysms between January 2020 and May 2022 were retrospectively included. All of them were admitted with a subarachnoid hemorrhage (SAH) and a ruptured aneurysm confirmed by DSA. Endovascular electrocoagulation was performed using a Traxcess-14 micro-guidewire super-selected into the orifice of the aneurysm or the beginning segment of the parent artery. Electrocoagulation was performed at 4.0 V and 1.0 mA current for 30–60 seconds each time. Patient demographics, treatment procedures, and follow-up outcomes were assessed.Results All of the eleven aneurysms in 11 patients were successfully treated using micro-guidewire electrocoagulation. After electrocoagulation for 1–4 min, all 11 aneurysms disappeared on angiography. Parent artery occlusion was observed in eight cases, and post-procedure infarctions of the operating region were identified in three patients. 10/11 received MRS 0 at 3-month follow-up. 9 patients had complete obliteration of aneurysm at a mean follow-up time of 13.6 months, no rebleeding was found.Conclusion Endovascular electrocoagulation is practicable and effective in treating aneurysms that are in accessable with microcatheters. Studies on larger populations are needed to further confirm its safety and long-term outcomes.Conflict of Interest No