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采用显微血管减压术治疗原发性三叉神经痛３３例，术中发现小脑上动脉压迫２２例，小脑下前动脉压迫５例，小脑后下动脉压迫１例，静脉压迫５例；三叉神经根受动脉压迫扭曲或有明显压迹者２４例，神经与动脉接触但无扭曲、压迹４例。２８例动脉压迫者术后疼痛均消失，但２例三叉神经根仅与动脉接触而无明显压迹和扭曲者术后疼痛复发；５例静脉压迫者仅３例疼痛消失，２例疼痛减轻。提出神经根受压的部位在本病的发病中不是决定因素，关键是神经根受压的程度。静脉压迫和动脉仅与三叉神经根接触而无压迹、扭曲者显微血管减压术的疗效远不如三叉神经根明显受压者显著，应同时行感觉根切断术，以提高三叉神经痛的治疗效果。
Microvascular decompression in the treatment of 33 cases of primary trigeminal neuralgia, intraoperative findings of superior cerebellar artery compression in 22 cases, 5 cases of inferior cerebellar artery compression, inferior cerebellar artery compression in 1 case, 5 cases of venous compression; trigeminal nerve Root compression by artery compression distorted or significant pressure in 24 cases, the nerve contact with the artery but no distortion, pressure track in 4 cases. Twenty-eight patients with arterial oppression had no postoperative pain, but two patients with trigeminal nerve root contact only with arterial pressure and had no obvious signs of stroke and distress recurrence of pain. Only three patients with venous pressure disappeared and two patients with pain were relieved. Proposed nerve root compression of the site in the pathogenesis of this disease is not a determinant, the key is the degree of nerve root compression. Venous compression and artery contact with the trigeminal nerve root only without pressure trace, distorter microvascular decompression is far less effective than obvious trigeminal nerve root compression, sensory root resection should be performed simultaneously to improve trigeminal neuralgia treatment effect.