NGHIÊN CỨU MỐI LIÊN QUAN GIỮA PHÂN LOẠI YAKES VÀ MỨC ĐỘ ĐÁP ỨNG ĐIỀU TRỊ THUYÊN TẮC CỒN TUYỆT ĐỐI TRONG DỊ DẠNG ĐỘNG - TĨNH MẠCH NGOẠI BIÊN TẠI BỆNH VIỆN CHỢ RẪY

Abstract

Background: Peripheral arteriovenous malformations (AVMs) are complex vascular disorders with various classification systems guiding treatment approaches. The Yakes classification is widely used to evaluate anatomical and hemodynamic characteristics of AVMs, supporting appropriate intervention strategies. However, the relationship between Yakes classification and treatment response to absolute ethanol embolization (AEE) has not been adequately studied in Vietnam. Objective: To evaluate the relationship between Yakes classification and treatment response to absolute ethanol embolization in peripheral AVMs. Methods: A retrospective case series study was conducted at Cho Ray Hospital from May 2019 to October 2022. Patients were classified according to Yakes classification and treatment outcomes were assessed based on clinical and imaging criteria. Results: The study included 39 patients with peripheral arteriovenous malformations classified according to the Yakes system. The overall success rate of absolute ethanol embolization was 74.4% (29/39 patients). Yakes IIIa group had the highest success rate (86.7%), followed by group IIIb (75%) and group II (61.1%). Yakes IV group had a 100% success rate, however, the number of cases in this group was very small (n=2). Conclusion: Yakes classification has a close relationship with the response to absolute ethanol embolization treatment. Group IIIa had the highest success rate, while group II had the lowest success rate. This helps clinicians predict treatment outcomes and choose appropriate strategies.