congenital arteriovenous fistula

例句：

1. 1.This congenital arteriovenous fistula has been causing her constant pain.
   这个先天性动脉-静脉瘘一直在给她带来持续的疼痛。
2. 2. The diagnosis of this congenital arteriovenous fistula is crucial for the treatment plan.
   对这个先天性动脉-静脉瘘的诊断对于治疗计划至关重要。
3. 3. Due to the complexity of the congenital arteriovenous fistula, surgery is often required.
   由于先天性动脉-静脉瘘的复杂性，手术通常是必要的。