cardiac origin of syncope

• 心源性晕厥

cardiac origin of syncope的用法和样例：

例句

1. The mechanism of vasovagal syncope is complex.
   血管迷走性晕厥机制复杂。
2. ConclusionAugmented endothelium-dependent vasodilation may play an important role in children with vasovagal syncope.
   结论血管内皮依赖性舒张功能增强可能是儿童血管迷走性晕厥发生机制之一。