Preliminary observation of the swinging-tail technique in assisting embolization of wide-neck aneurysms of the posterior communicating artery with fetal-type posterior cerebral artery
Objective To preliminarily observe the safety and effectiveness of the swinging-tail technique in assisting coil embolization of wide-neck aneurysms of the posterior communicating artery(PCoA)with fetal-type posterior cerebral artery(fPCA).Methods The clinical data of 14 patients with wide-neck aneurysms of the PCoA with fPCA who were treated with the swinging-tail technique to assist coil embolization in the Department of Neurointerventional Radiology,the First Affiliated Hospital of Zhengzhou University from August 2018 to August 2023 were retrospectively analyzed.Technical and operation-related complications were observed.At 6 months post operation,telephone or outpatient follow-up was conducted and patients were reminded to undergo the scheduled whole-brain digital subtraction angiography(DSA).The neurological function status was evaluated by the modified Rankin Scale(mRS),and the embolization effect of the aneurysm was evaluated by Raymond classification.Results All 14 patients achieved technical success,and no operation-related complications occurred.One patient died due to respiratory failure 16 days after the operation.At discharge,there were 11 cases with mRS 0 point,1 case with mRS 1 point,and 1 case with mRS 2 points.At the 6-month follow-up after the operation,the mRS scores of 13 patients were all 0 point.Eleven patients completed DSA follow-up,and the follow-up time[M(Q1,Q3)]was 7(5,10)months;the results showed that the PCoA was all well opened,and there was no in-stent stenosis,among which there were 8 cases of Raymond grade Ⅰ and 3 cases of grade Ⅱ.Only two patients underwent the examination of magnetic resonance angiography,and no aneurysm recurrence was seen.Conclusion Preliminary observation has demonstrated that the use of the swinging-tail technique to assist coil embolization of wide-neck aneurysms of the PCoA with fPCA has fewer surgical complications and can effectively embolize the aneurysm.
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