[Clinical analysis of 2643 cases of trigeminal neuralgia treated by microvascular decompression].

OBJECTIVE: To evaluate the clinical effects of microvascular decompression in treating trigeminal neuralgia. METHODS: Surgical experience and operative findings of 2643 cases of trigeminal neuralgia treated by microvascular decompression were analyzed retrospectively. RESULTS: Two thousand four hundred and eighty-seven of 2643 cases were cured, 76 cases were ineffectiveness, 48 cases were effectiveness and 31 were ineffective. One patient died. Two thousand one hundred and thirty-six cases were followed up in 3-240 months, 1918 cases were cured, 85 cases were obviously effective, 39 cases were effective and 30 were ineffective. Sixty-four cases were pain relapsed and 37 cases were cured by second operation among them. CONCLUSION: The etiology of trigeminal neuralgia is that the unusual vascular oppress the root entry zone, and arachnoid membrane circling the nerve is thickened and sticked. To untie the arachnoid membrane and decompress the offending vascular is the effective methods in treating trigeminal neuralgia.

[Therapeutic evaluation of microvascular decompression in patients with trigeminal neuralgia associated with hypertension].

OBJECTIVE: The aim of work was to evaluate the efficacy of microvascular decompression (MVD) in patients with trigeminal neuralgia (TN) associated with hypertension. METHODS: Five hundred and thirty-eight cases of TN associated with hypertension treated with MVD were retrospectively analyzed, all the cases were treated with MVD in the zone of the ventrolateral medulla oblongata and inspected postoperative blood pressure. RESULTS: Among 538 cases, 341 cases (63.4%) had cure result, 71 cases (13.2%) had obvious effectiveness, 53 cases (9.8%) had effectiveness, and 73 cases had no effectiveness. Four hundred and eighty-three cases have been followed 1.0 approximately 15.8 years, mean 6.3 years. At the time of their follow-up, 313 cases had cure result, 63 cases had obvious effectiveness, 42 cases had effectiveness and 65 cases had no effectiveness. CONCLUSIONS: It was pathogenesis of nedulla oblongata by abnormal vascular tab, long-term aching stimulation and emotional stress. It was an effective method to treat TN associated with hypertension with MVD in this zone.

[Clinical study on the removal of sellar region tumors by pterional approach (report of 119 cases)].

BACKGROUND & OBJECTIVE: Sellar region tumors are common intracranial tumor. This study was designed to investigate the methods of the removal of tumors in sellar region by pterional approach. METHODS: A total of 119 cases with sellar region tumors were performed operation. Before the operation, the relationships between the tumors and their periphery were determined according to CT, MR and the cerebral angiography and then the tumors were removed by pterional approach microsurgery in 4 different spaces. RESULTS: The number of the patients treated with total, subtotal, and partial resection were 72, 36, and 11, respectively; with 85 cases significantly improved, 24 getting better, 8 without changes and 2 dead. Follow-up half a year, 92 cases were survival in the half a year of follow-up, in which 61 cases were able to work with normal life, 15 could do light work, 9 could take care of themselves but 6 patients were disabled, and 1 died of heart disease. CONCLUSION: Pterional approach can be used to remove many kinds of tumors in sellar region and with better exploration, therefore, increase the total removal and cure rate of such tumors.