Nghiên cứu đặc điểm hình thái phình mạch máu não và đánh giá kết quả ngắn hạn can thiệp đặt stent chuyển hướng dòng chảy điều trị phình mạch máu não

Abstract

Objective: To evaluate the morphological characteristics of cerebral aneurysm and short-term results of treatment using flow diverter stent in the intracranial aneurysm disease. Subject and method: 227 consecutive patients were treated by mean of flow diverter stents in our institution from December 2011 to August 2019. The method is descriptive, cross-sectional study, retrospective cohort, timing follow up to evaluate treatment results. Result: There were 239 intracranial aneurysms among 227 patients. Mean age was 50.2 ± 12.1 years, and most of patients in this study were female, accounted for 71.4%. Saccular aneurysm accounted for 94.15%, which had 89.8% of dome to neck ratios less than 1.5. The aneurysm location in the anterior circulation was 95.6% of the total.

Most aneurysms had small and medium size, the percentage of large and giant aneurysm > 25mm was only 8.8%. We used flow diverter stents for all patients in the cohort, and the result of this technique was successfully in 99.56%. In this group, stents which were in the right position, well hatched and close to the wall, reached 92.8%. The tolerance of xenetic in aneurysm lesions after using flow diverter stent was 75.6%. The conplication rate after intervention was 4.4%. One cases (0.4%) was death because of technique in the intervention progress. The proportion of patients who had aneurysm occlusion in 3 and 6 months were 57.83% and 84.37% respectively. 4.9% of patients without symptoms had mild stenosis in the lumen of stent. Conclusion: Our study shows the safety and effectiveness of flow diverter devices for the treatment of cerebral aneurysms.