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Objective To evaluate the surgical treatment of pheochromocytoma. Methods A total of 151 cases of pheochromocytoma were studied in regard to the preoperative preparation,anesthetic management,operative technique and postoperative treatment. Results Of the 151 cases 132 underwent total tumor excision,12 cases intracapsular excavation and 7 cases partial cystectomy.Only 1 patient died during the course of operation.Pathological examination showed that 137 cases were of benign pheochromocytoma and 14 cases of malignant.After operation 136 cases had normal blood pressure and 15 cases were treated with hypotensor to maintain normal blood pressure.Of the 137 cases of benign pheochromocytoma 9 experienced relapse.Of the 14 cases of malignancy 10 died of metastasis within 5 years. Conclusions Surgical excision is the fundamental approach for cure,and correct preoperative diagnosis and proper perioperative management are extremely important.
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Objective To compare the efficacy of tamsulosin and nifedipine for the adjunctive expulsive therapy in patients with lower ureteral stones. Methods A total of 180 patients with stones (0.4-1.0 cm in diameter) located in the lower ureter (juxtavesical or intramural tract) were randomly divided into 3 groups (60 cases in each group). Group 1 served as controls; group 2 received nifedipine (10mg, 3 times daily) ; and group 3 received tamsulosin (0.4 mg, once daily). All patients were observed for 2 weeks. Results During 2 weeks, expulsion of stones was observed in 26 cases (43. 3% ) of group 1, in 44 (73. 3% ) of group 2, and 49 (81. 1% ) of group 3. The difference in expulsion rates between groups 2, 3 and group 1 was statistically significant (P 0. 05). In groups 1 , 2 and 3, renal colic recurred within 2 weeks and analgesics were used in 5 cases (8.3%), 1 (1.7% ) and 0, respectively, with significant difference between the groups (P
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Objective To investigate the quantitative expression of mRNA levels of human NOV and WT1 genes in renal cell carcinoma ( RCC). Methods Using quantitative real-time RT-PCR analysis, we quantified NOV and WT1 mRNA levels in the samples from 57 patients (40 men and 17 women; mean age,65 years) with RCC. Of them,39 cases had T1 stage tumor, 13 had T2 stage and 5 had T3a stage by UICC pathologic staging;and 14 cases had G1 tumor,23 had G2 and 20 had G3 by Fuhrman grading. The expression levels of NOV and WT1 genes,and their association were analyzed. Results The median level of NOV mRNA expression was significantly lower in RCC ( 1. 17) than in normal kidney tissue (4. 32, P