[Therapeutic effect of gamma knife on intracranial cavernous angioma].

Objective: To evaluate the therapeutic effect of gamma knife on patients with intracranial cavernous angioma (CA).

Methods: The medical records of 122 patients (134 lesions) who underwent radiosurgery were reviewed retrospectively.

Results: Th e average follow-up period was 43 months. No patient died. One patient underwent CA resection. In patients with epilepsy, 83% patients showed alleviation of seizures. About 44% of the lesions shrank in size after treatment with gamma knife radiosurgery (59/134). Seven cases had hemorrhage again after radiosurgery, and the overall annual hemorrhage rate was 1.6%. Edema was found in 11.5% patients (14/122) and all patients showed improvement aft er treatment.

Conclusion: Gamma knife is a safe treatment for CA, which could obviously improve the symptoms of epilepsy. Gamma knife radiosurgery is the fi rst option for the treatment of cavernous sinus angiomas.