Among 39 patients, 80% was female, 20% was male, the average age of symptom onset was 45.4, the mean preoperative duration of symptom was 5.3 years.
Trong số 39 bệnh nhân, nữ chiếm 80%, nam chiếm 20%, tuổi khởi phát triệu chứng trung bình là 45,4, thời gian co giật mặt trung bình trước khi phẫu thuật là 5,3 năm.