Yu-xuan Wu

Shanghai Ruijin Hospital, Shanghai, Shanghai Shi, China

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Publications (10)5.42 Total impact

  • Article: Myxoid adrenal cortical tumor: report of four cases.
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    ABSTRACT: Myxoid adrenocortical neoplasms are rare. Surgical resection of the mass is the first-line therapy. Here we reported a total of four patients, aged 44–66 years, diagnosed with myxoid adrenocortical tumor. The clinical characteristics and immunohistochemical features of the tumor are discussed in the current literature.
    Chinese medical journal 05/2012; 125(9):1672-4. · 0.86 Impact Factor
  • Article: Significance of heparanase-1 and vascular endothelial growth factor in adrenocortical carcinoma angiogenesis: potential for therapy.
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    ABSTRACT: The purpose of this study was to determine the correlation between human adrenocortical carcinoma (ACC) and the proteins involved in tumor angiogenesis, and to evaluate the angiogenic status of ACC. The expression of heparanase-1 (HPA-1), vascular endothelial growth factor (VEGF), and vascular endothelial growth factor receptor-2 (VEGFR-2) as well as microvessel density (MVD) were measured in a series of tissue samples from 44 human sporadic adrenocortical tumors by immunohistochemistry. These specimens were classified as adenomas (n = 20) and carcinomas (n = 24) according to the histological criteria defined by Weiss. A total of 22 of 24 (91.67%) malignant cases showed positive staining for HPA-1 and 3 of 20 (15%) benign cases showed positive, the difference of HPA-1 expression between ACA and ACC was statistically significant (P < 0.001). Similarly, VEGF staining was seen in 70.83% (17/24) of the malignant cases versus 25% (5/20) of the benign, the difference of VEGF expression among two groups was statistically significant (P = 0.002). VEGFR-2 expressed highly in the ACC group (79.17%, 19/24) and lowly in the benign group (25%, 5/20), the two groups had extremely significant difference (P < 0.001). Malignant cases showed higher MVD compared to benign tumors (84.70 ± 12.44 vs. 21.05 ± 8.07, P < 0.001). HPA-1 and VEGF expression were positively correlated with MVD in all specimens (r_s = 0.812, P = 0.001; r_s = 0.834, P < 0.001). In conclusion, these results suggest that angiogenesis of human ACC maybe mediated by these proteins and they could represent selective targets for the molecularly targeted treatments of ACC.
    Endocrine 06/2011; 40(3):445-51. · 1.42 Impact Factor
  • Article: Selective α1-adrenoceptor antagonist (controlled release tablets) in preoperative management of pheochromocytoma.
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    ABSTRACT: The objective of this article is to evaluate the efficacy of Doxazosin Mesylate Controlled Release Tablets for preoperative treatment of patients with pheochromocytoma. Between 2003 and 2008, 67 patients with confirmed diagnoses of pheochromocytoma were enrolled in this study. According to the drug used in preoperative management, patients were divided into two groups: Doxazosin Mesylate pretreatment group (n=36) and Phenoxybenzamine pretreatment group (n=31). Surgery was performed only in patients who met the optimal preoperative condition. The hematocrit decreased significantly (P<0.001) after antiadrenergic therapy in patients pretreated with phenoxybenzamine or doxazosin. There was no significant difference between the fluid intakes during operation in both groups. The systolic arterial pressures both before and after induction of anesthesia were all significantly higher in the doxazosin patients than in the phenoxybenzamine group (P<0.05). After tumor removed, the lowest systolic arterial pressure was significantly higher in doxazosin group than in phenoxybenzamine group (P<0.05). The fluctuation of systolic arterial pressure during operation was more stable in doxazosin group than in phenoxybenzamine group (P<0.05). Doxazosin mesylate controlled release tablet was as effective as phenoxybenzamine in preoperative volume expansion. Although phenoxybenzamine provided better arterial pressure control, patients pretreated with DOX experienced more stable perioperative hemodynamic changes, shorter preoperative management periods and more simple medication.
    Endocrine 10/2010; 38(2):254-9. · 1.42 Impact Factor
  • Source
    Article: Myxoid adrenocortical adenoma: a case report.
    Chinese medical journal 09/2008; 121(16):1598-600. · 0.86 Impact Factor
  • Article: [Surgical treatment of 486 cases of adrenal gland diseases: a retrospective study].
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    ABSTRACT: To evaluate the roles of laparoscopic adrenalectomy (LA) and open adrenalectomy (GA) for treatment of adrenal gland diseases. The data of 486 patients with adrenal gland diseases was analyzed retrospectively during 5 years. A total of 478 patients received surgical treatments including 318 GAs and 160 LAs. The operation time, bleeding volume during operation, intestine function recovery time, pain postoperatively, hospital stay time postoperatively and postoperative complications in group GA and group LA respectively were compared. All cases in group GA were successful. A total of 154 cases in group LA were successful, and 6 cases were converted to open surgery. In group LA, there were 9 cases whose tumor diameter exceeded 6 cm. There were 3 malignant cases in group LA, and no recurrence and metastasis were observed during 3-20 months follow-up. The average operation time was (112 +/- 16) mmn and (69 +/- 10) min in group GA and LA respectively. The average bleeding volume during operation was (286 +/- 23) ml, (56 +/- 10) ml in group GA and LA respectively. The average intestine function recovery time was (66 +/- 7) h, (24 +/- 7) h in group GA and LA respectively. The average frequency of treatment of pain was 1.9 +/- 0.4 and 0.5 +/- 0.1 in group GA and LA respectively. The average hospital stay time postoperatively was (10.3 +/- 1.1) d and (7.2 +/- 0.7) d in group GA and LA respectively. The rate of postoperative complications was 40.3% and 7.5% in group GA and LA respectively. All differences were significant (P = 0.023, 0.007, 0.039, 0.003, 0.029 and 0.001). LA has the added benefit of shorter convalescent times, improving patients satisfaction and less associated complications, as it has proved to be as effective as OA.
    Zhonghua wai ke za zhi [Chinese journal of surgery] 01/2008; 45(24):1694-6.
  • Article: [Clinical analysis of 286 cases of renal malignancies].
    Zhonghua zhong liu za zhi [Chinese journal of oncology] 06/2006; 28(5):400.
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    Article: Primary pigmented nodular adrenocortical disease: report of 5 cases.
    Chinese medical journal 06/2006; 119(9):782-5. · 0.86 Impact Factor
  • Article: [Prevention of incontinence after radical prostatectomy].
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    ABSTRACT: To discuss the effect of urine control after radical retropubic prostatectomy by preserve the membranous part of sphincter urethrae and the neurovascular bundle, or to rebuild the bladder neck. The radical retropubic prostatectomy was performed on a total of 32 cases of prostate cancer. We preserve the membranous part of sphincter urethrae and the neurovascular bundle lateral to the prostate. We evaginate the posterior wall of the bladder adequately and make an additional folding stitch to rebuild the bladder neck. The follow up is of 6-72 months. All patients could void without difficulty, no tumor recurrence and only 2 cases occurred slight incontinence. Other 30 cases regained the ability of controlling their urinations within 6 months. The incontinence after radical retropubic prostatectomy could be reduced by the method of preserving the membranous part of sphincter urethrae and preserving the neurovascular bundle lateral to the prostate in operation. It could also be avoided by evaginate the posterior wall of the bladder adequately and make an additional folding stitch to the bladder neck.
    Zhonghua wai ke za zhi [Chinese journal of surgery] 04/2006; 44(6):369-71.
  • Article: [Primary pigmented nodular adrenocortical disease report of 5 cases].
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    ABSTRACT: To study the pathology, diagnostic and therapeutic method of primary pigmented nodular adrenocortical disease (PPNAD). The data of 5 cases of PPNAD were analyzed retrospectively. Among the 5 cases, 2 were male and 3 were female. The range of age was from 12 to 53 years. All the 5 cases had symptoms of Cushing syndrome. The diagnose depended on the results of endocrine exams, ultrasound, CT, MR and pathological reports. All patients received operation of unilateral adrenalectomy. The therapeutic effects were determined by post-operative results, which concluded clinical symptoms and endocrine exams. The follow-up time was from 4 months to 3 years. All patients' symptoms of Cushing syndrome were relieved in 6 months after operation. The endocrine exam was normal in one case and obvious improved in the other four cases. Up to now, one patient drop out of the follow-up, the other 4 cases had no evidence of recurrence. PPNAD is a rare type of Cushing syndrome. Diagnose depends on endocrine exams and pathological results. Operation is the effective method for the disease.
    Zhonghua wai ke za zhi [Chinese journal of surgery] 08/2005; 43(14):944-7.
  • Article: [The analysis of the factors for postoperative blood pressure recovery of aldosterone producing adenoma patients].
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    ABSTRACT: To investigate the factors regarding the recovery of postoperative blood pressure of aldosterone producing adenoma (APA) patients. Sixty-eight patients with APA were recruited and their data including retinal blood vessel by Doppler sonography, urinary trace albumin, pathological changes of renal biopsy and the adrenal tissues around the adenoma were analyzed in order to determine the correlation between these data and postoperative durative hypertension. Postoperative durative hypertension occurred in 14 cases (41.2%) with increased resistance of unilateral or bilateral central artery of retina, in 16 cases (66.7%) with increased level of urinary trace albumin. Fifteen cases underwent renal biopsy and all of them showed different pathological alterations, 11 cases (73.3%) of which presented with postoperative durative hypertension. The pathological changes of the adrenal tissues around the adenoma is either atrophy or non-atrophy (normal or hyperplasia), 8 cases (40%) and 10 cases (22.2%) of which showed postoperative durative hypertension, respectively. The renal pathological changes and increased resistance of retinal blood vessel are the main reasons leading to postoperative hypertension in patients with APA.
    Zhonghua wai ke za zhi [Chinese journal of surgery] 06/2004; 42(10):587-9.