1.Comparative Study of Greenlight Photos Selective Vaporization and Revolix 2 Micron Continuous Wave Laser Vaporesection for the Treatment of Superficial Bladder Tumor
Yongzhong JIA ; Min LUO ; Xuren XIAO
Chinese Journal of Minimally Invasive Surgery 2005;0(07):-
Objective To compare the safety and efficacy of greenlight photos selective vaporization and RevoLix 2 micron continuous wave laser vaporesection for the treatment of superficial bladder tumor. Methods Under sacral anesthesia or epidural anesthesia,a total of 42 patients with superficial bladder tumor were treated with greenlight photos selective vaporization while the other 42 patients received the RevoLix 2 micron continuous wave laser Vaporesection. The clinical stage of the patients was T1-T2,and the pathology grade was G1-G2. Results The greenlight photos selective vaporization and RevoLix 2 micron continuous wave laser vaporesection were successfully completed in all of the patients. No patients required blood transfusion. No complications such as obturator nerve reflex,bladder perforation or overhydration occurred. No significant difference was noticed in the operation time [(15.3?10.5) min vs (14.3?6.5) min,t=0.525,P=0.601],catheterization time [(6.3?0.5) d vs (6.3?1.2) d,t=0.000,P=0.999],and postoperative hospital stay [(6.3?3.5) d vs (7.2?2.4) d,t=-1.374,P=0.173]. The patients were followed up for 6 months,during the period the recurrence rate was 11.9%(5/42) and 7.1%(3/42) respectively in the greenlight group and RevoLix group (?2=0.138,P=0.710). Conclusions Both greenlight photos selective vaporization and RevoLix 2 micron continuous wave laser vaporesection are effective and safe for superficial bladder tumor and lead to low rates of postoperative complications and recurrence. Further studies are necessary to evaluate its long-term effect. For T2 and higher grades of bladder tumors,open surgery should be performed.
2.Minimally Invasive Treatment for Ureteral Calculus Accompanied with Granulation: 27 Cases Report
Dong PANG ; Bing HE ; Yongzhong JIA ; Hua WANG ; Xuren XIAO
Chinese Journal of Rehabilitation Theory and Practice 2010;16(9):869-871
ObjectiveTo investigate the therapeutic effects, safety of pneumatic lithotripsy and 2 μm laser via transurethral ureteroscope for ureteral calculi accompanied with granulation. Methods27 cases (30 sides) of ureteral calculi accompanied with granulation treated with 2 μm laser and pneumatic lithotripsy via ureteroscope were reviewed. Results28 sides were fragmented successfully in a single procedure. The operation time was 15~45 min (mean 25 min). The intraoperative blood loss was 3~15 ml (mean 5 ml). The postoperative hospitalization time was 3~7 d (mean 5.5 d). 1 upper ureteral stone was pushed back to the renal pelvis and extracorporeal shock wave lithotripsy was needed. The insertion of the ureteroscope was failed in 1 cases, who accepted open operation finally. Double-J tubes were pulled out in all the patients after 1 month, and 26 sides were stone-free. They were followed-up for 3~15 months (mean 8 months), no ureteral stenosis or urinary infection was found. Conclusion2 μm laser and pneumatic lithotripsy via ureteroscope is an effective and safe therapy for ureteral calculi with granulation, especially for those on middle or lower levels.
3.Multicentric prospective randomized controlled study of efficacy of mannitol,furosemide and albumin in reducing intracranial pressure in patients with severe brain injury
Guodong HUANG ; Jun JIA ; Yun ZHEN ; Jiangong WEI ; Richu LIANG ; Weiping LI ; Yongzhong GAO
Chinese Journal of Trauma 2008;24(9):680-683
Objective To compare the effect of difierent combinatio of mannitol, furesemide and albumin in reducing intracranial pressure in 451 patients with severe traumatic brain injury (sTBI). Methods A total of 451 patients with an admissiou Glasgow Coma Scale of or less from 5 medical centers were randomly divided into 5 groups, ie, Group A(250 ml 20% mannitol each time as control), Group B(125 ml 20% mannitol each time), Group C(alternate use of 250 ml 20% mannitol each time or 40 mg furosemide), Group D(alternate use of 125 ml 20% mannitol each time and 20 mg furosemide)and Group E(alternate use of 125 ml 20% mannitol and moderate or large dose of albumin). We monitored intracraniai pressure continuously and observed the changes of intracranial pressure, electrolytes, hemato-crit and renal function after use of 5 combinations of mannitol. Furosemide and albumin. Results Man-nitol and furosemide could independently reduce intracranial pressure after 1-3 hours (P<0. 05). Semis mannitol plus furosemide or albumin could more signifieantly reduce intracranial pressure, with statistical difference compared with full dose of mannitol. Semis mannitol and alternate use of mannitol and furose-mide in aspect of intracranial pressure reduction and persistence time(P<0. 05). Alternate use of man-nitol and furosemide begot higher incidence rate of electrolyte abnormality, compared with the other com-binations (P<0. 05). Rebound rate of intracranial pressure was higher in full dose of mannitol than other combinations (P<0. 05). Incidence of renal function abnormality was higher in combination involved al-bumin than alternative use of mannitol and furosemide as well as combination of semis mannitol and furo-semide (P<0. 05). Abnormality of electrolyte and renal function wag reversible. Conclusion The use of 125 ml 20% mannitol each time plus 20 mg furesemide is more reasonable than other combina-tions. Meanwhile, semis mannitol combined with moderate or large dose of albumin has certain advantages too.
4.Two macron continuous wave laser and pneumatic lithotripsy treatment of ureteral calculus accompanied with granulation via ureteroscope
Dong PANG ; Bing HE ; Yongzhong JIA ; Hua WANG ; Yuzhu LI ; Xuren XIAO
Chinese Journal of Urology 2010;31(12):825-827
Objective To investigate the therapeutic effects, safety of ureteral calculus accom panied with granulation treated with pneumatic lithotripsy and two-macron laser via transurethral uret eroscopic. Methods From June 2007 to March 2010, 38 cases of ureteral calculus accompanied with granulation were treated with 2 μm laser and pneumatic lithotripsy via ureteroscope. All the patients had middle to severe hydronephrosis. The granulation under the calculus was vaporized with the 2 μm laser, and then the ureteral stone was fragmented with pneumatic lithotripsy. The clinical datum,stone disintegration rate, lithagogue rate and complication were retrospectively analyzed. Results Among 38 cases of ureteral stones, rate of successful fragmentation in a single procedure was 92%(35/38). The operation time ranged from 15 to 45 min, mean (23.0±6.5)min. Estimated the intraoperative blood loss was (7.0±4.5)ml. The postoperative hospitalization time was (5.2±0.6)d. Two upper ureteral stones were pushed back to the renal pelvis and a conversion to extracorporeal shock wave lithotripsy (ESWL) was needed. The insertion of the ureteroscope was failed in 1 case who was accepted open operation finally. Among the 37 cases treated via ureteroscopy, stone clearance rate was about 86% after operation 1 month. Follow-up examinations for 3-15 months (mean 8 months)showed no ureteral stenosis or urinary infection. Conclusion 2 μm laser and pneumatic lithotripsyvia ureteroscope could be a highly effective and safe therapy for treatment of ureteral stone with granulation.
5.Chitosan and its applications in synthesis of metal nanomaterials.
Dongwei WEI ; Cuiying JIA ; Xueping JIA ; Yongzhong YE ; Weiping QIAN
Chinese Journal of Biotechnology 2009;25(10):1449-1458
Chitosan has natural abundance, unique bioactivity and attractive physicochemical properties. Recent years, the synthesis of chitosan-based metal nanomaterials has attracted increasing attention. The synthesis of metal nanoparticles utilizing biomolecular or organism offers a mild medium, and thus a greater degree of control over the nanoparticles produced, along with higher reproducibility. In particular, preparation of metal nanoparticles based on biomolecular or organism has its unique facility in integrating "minimum feature sizes" into labile biological components to an excellent synergy and bifunctional effect and consequently a more broad application. Herein, we review the new development of chitosan, chitosan-based synthesis of metal nanomaterials, and their application.
Catalysis
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Chitosan
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chemistry
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Metal Nanoparticles
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chemistry
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Oxidation-Reduction
6.Surgical management of renal neoplasm extending into the inferior veno cava
Xuren XIAO ; Xianglong CHEN ; Hongjiang ZHU ; Yongzhong JIA ; Xuejie WU ; Dong PANG ; Qingjiang ZHANG ; Hua WANG ; Lixing WANG ; Qi WANG ; Lei ZHANG ; Linyang YE ; Baofa HONG ; Wei CAI ; Jiangping GAO ; Yong YANG ; Maoqiang WANG ; Changqing GAO ; Liang CUI
Chinese Journal of Urology 2017;38(1):9-14
Objective To summarize our experience with surgical management of renal neoplasm involving inferoir veno cava.Methods We review the data of 115 patients,including 74 male patients and 41 female patients,with renal neoplasm involving venous system between March 1993 and December 2015.The mean age was 52 years old,ranging 22 to 77 years old.The tumor was found in right side in 77 cases and left side in 38 cases.There were 15 patients (13.0%) with renal vein thrombus,38 (33.1%) with infrahepatic thrombus,29 (25.2%) with low retrohepatic thrombus,20 (17.4%) with high retrohepatic thrombus,and 13 (11.3%) with supradiaphragmatic thrombus.The mean age was 52 years old,ranging 22 to 77 years old.The tumor was found in right side in 77 cases and left side in 38 cases.All patients accepted the radical nephrectomy.Primary outcomes were overall survival (OS),and cancer special survival (CSS) in patients with renal cell carcinoma (RCC) estimated by Kaplan-Meier method.Secondary outcome included operative and oncological features,past-operative complications and hospital mortality.Cox proportional hazard model was used to univariate and multivariate analysis for risk factor impacting on OS of RCC patients.Results Complete resections of renal neoplasm with tumor thrombus were achieved in 113 patients (98.3%),2 patients died intraoperatively due to the dropping of thrombus.Postoperative complication rate was 16.8%.Hospital mortality was 2.6%.Mean follow-up interval was 48 months.OS rates at 5-,and 10-year in RCC patients were 66.5%,and 61.8%,respectively.Metastasis was an independent risk factor affecting on OS (P =0.000).However,the level of thrombus was not an risk factor affecting the prognosis.Conclusions Radical resection of renal tumor and caval thrombus is an effective treatment for prolonging survival in patients with RCC extending into venous system.Retrohepatic caval tumor thrombus below or above the main hepatic vein should be dichotomized and managed respectively with diverse techniques.Metastatic rather than the level of thrombus was a risk factor impacting on RCC patient survival.
7.Prevalence and Molecular Characterization of Echinococcus granulosus Sensu Stricto in Northern Xinjiang, China
Baoping GUO ; Zhuangzhi ZHANG ; Xueting ZHENG ; Yongzhong GUO ; Gang GUO ; Li ZHAO ; Ren CAI ; Bingjie WANG ; Mei YANG ; Xi SHOU ; Wenbao ZHANG ; Bin JIA
The Korean Journal of Parasitology 2019;57(2):153-159
Echinococcus granulosus is an important zoonotic parasite globally causing cystic echinococcosis (CE) in humans and animals. In this study, prevalence of CE and variation of cox1 gene sequence were analyzed with isolates E. granulosus collected from different areas in northern Xinjiang, China. The survey showed that 3.5% of sheep and 4.1% of cattle were infected with CE. Fragment of cox1 was amplified from all the positive sheep and cattle samples by PCR. In addition, 26 positive samples across the 4 areas were included. The isolates were all E. granulosus sensu stricto (s.s.) containing 15 haplotypes (Hap1-15), and clustered into 2 genotypes, G1 (90.1%, 91/101) and G3 (9.9%, 10/101). Hap1 was the most common haplotype (48.5%, 49/101). Hap9 were found in humans samples, indicating that sheep and cattle reservoir human CE. It is indicate that E. granulosus may impact on control of CE in livestock and humans in the region.
Animals
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Cattle
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China
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Cross-Sectional Studies
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Echinococcosis
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Echinococcus granulosus
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Echinococcus
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Genotype
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Haplotypes
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Humans
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Livestock
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Parasites
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Polymerase Chain Reaction
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Prevalence
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Sheep
8.Survey on the awareness and application of radiation shielding specifications for γ-ray radiotherapy room
Chenzhi JIA ; Chuanpeng HU ; Xiaojun CHENG ; Yongzhong MA ; Xiang DU ; Zechen FENG ; Zipo ZHAI ; Wei LI ; Zhen ZHANG
China Occupational Medicine 2023;50(1):94-98