[Effect of decompression of blood vessel on vascular compressive tinnitus].

OBJECTIVE

To evaluate the diagnosis and surgical indications of vascular compressive tinnitus.

METHOD

We searched carefully the possible focus causing vascular compressive tinnitus around VIII 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.

RESULT

We had 38 cases of operation. All of them had artery compression on the surface of VIII cranial nerve, 6 of them had arachnoid synechia. After operation, the symptoms of tinnitus disappeared thoroughly. Of them 4 cases with vertigo recovered also. Recurrences were found in 2 cases in the follow-up survey which last 6 monthes to 7 years and 2 monthes.

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.