Objective : to evaluate the diagnosis and surgical indications of vascular compressive tinnitus 目的：探讨血管压迫性耳鸣的发病原因及提高手术治疗的方法。
2.
Conclusion ： surgical treatment of neurovascular decompression for vascular compressive tinnitus via retrosigmoid sinus approach has positive therapeutic effect as long as the diagnosis is correct 结论：血管压迫性耳鸣确诊后，采用乙状窦后径路神经血管减压术治疗，可以取得满意的疗效。
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Method : we searched carefully the possible focus causing vascular compressive tinnitus around cranial nerve in cerebellopontine angle via retrosigmoid sinus approach under microscope in 40 cases . the responsible blood vessels and synechia focus was separated and one piece of auto - musculomembrane was put between blood vessels and the nerve 方法：经乙状窦后径路进入桥小脑角，在手术显微镜下，对听神经周围仔细检查，发现38耳第脑神经均有血管压迫，其中6耳伴有蛛网膜增厚粘连。
