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目的 :探讨脑动静脉形 ( AVM)破裂出血的相关因素。方法 :通过收集本院自 1 985至 1 999年经手术证实的 95例 AVM,回顾性地分析术中所见的 AVM血管的特点 ,通过对具有不同特点的 AVM发生出血率的比较 ,研究造成 AVM破裂出血的相关因素。结果 :由于 AVM的大小、位置、是否并发动脉瘤、引流静脉的数目、通畅程度、引流去向等因素的不同 ,出血的发生率存在着明显的差异。结论 :AVM是否发生出血与供血动脉是否并发动脉瘤、畸形血管团的大小、位置、引流静脉的数目、通畅程度、引流去向等因素密切相关。总结此规律 ,今后当发现AVM存在发生出血的危险因素时应及时处理以避免出血的发生。
Objective: To explore the related factors of cerebral arteriovenous (AVM) rupture and hemorrhage. Methods: By collecting 95 cases of AVM surgically confirmed in our hospital from 1985 to 1999, we retrospectively analyzed the characteristics of AVM vessels seen in the operation. By comparing the bleeding rates of AVM with different characteristics, AVM rupture bleeding related factors. Results: There was a significant difference in the incidence of bleeding because of the size and location of AVM, the presence or absence of aneurysms, the number of drainage veins, the degree of patency, and the direction of drainage. Conclusion: The occurrence of AVM is closely related to whether the donor artery has arterial aneurysm, the size of the abnormal blood vessel, the location, the number of drainage veins, the degree of patency and the direction of drainage. To sum up this rule, in the future when found AVM bleeding risk factors exist should be promptly treated to avoid the occurrence of bleeding.