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Objective@#To assess value of immediate postoperative intravesical instillation of pirarubicin after transurethral resection (TURBT)of non-muscle invasive bladder cancer.@*Methods@#484 patients diagnosed with non-muscle-invasive bladder cancer admitted to the Second Affiliated Hospital of Kunming Medical University were divided into two groups after transurethral resection of bladder tumor. 285 patients received postoperative intravesical instillation of pirarubicin within 6 hours after the surgery, 199 patients received first instillation of pirarubicin at 10 days after the surgery, after that, all the patients received routine bladder perfusion chemotherapy. Patients who received intravesical instillation of pirarubicin within 6 hours were defined as immediate intravesical instillation group and the other patients as the control group. Based on the European Organisation for Research and Treatment of Cancer risk tables, scores of recurrence and progression of patients were calculated and then stratified into risk groups accordingly. Recurrence and progression rates of the immediate intravesical instillation group were analyzed and then compared with the corresponding reference of the risk tables.@*Results@#The 1-year and 5-year recurrence rate of patients with EORTC table scoring 0 in the immediate intravesical instillation group were significantly lower than that of the EORTC reference group (5.3% and 14.0% vs 15.0% and 31.0%, P<0.05). 1-year recurrence free rate between the immediate intravesical instillation group and the control group in patients scoring 1-4 was significantly different (81.3% vs 76.7%, P=0.014). However, 1-year recurrence free rate of the immediate intravesical instillation group was comparable with that of the control group in patients scoring 5-9, 10-17(P>0.05), which is quite close to the EORTC reference. The probability rates of 1-year and 5-year progression of the 285 patients who received immediate intravesical instillation group did not show significant difference with the EORTC reference. On multivariate analysis, previous recurrence, tumor grade G2-3, tumor multiplicity, delay of immediate intravesical instillation were independent risk factors of recurrence(P<0.05).@*Conclusions@#With the help of EORTC recurrence risk table stratifying the patients into different risk groups, our study showed that delay of immediate postoperative intravesical instillation of chemotherapy after TURBT was an independent risk factor of post-surgery recurrence of tumor. Moreover, patients with EORTC scoring 1-4 might obtain greatest benefits.
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Objective:To explore the correlation between single nucleotide polymorphisms (SNPs) in Homo sapiens longevity assur-ance homologue 2 (LASS2) gene 3′-untranslated regions (UTR) and susceptibility of bladder cancer among residents of Yunnan, China. Methods:A total of 105 bladder cancer patients (bladder cancer group) and 100 nonbladder cancer patients (control group) were se-lected. PCR method and sequence for LASS2-3′-UTR were performed to identify the SNPs correlated with bladder cancer. The relation-ships between the LASS2-3′-UTR polymorphisms and bladder cancer risk were analyzed. Results:An SNP (rs8444) was identified in LASS2-3′-UTR, and the T/C allele frequencies and genotype distributions of rs8444 largely differed between the bladder cancer and control groups (χ2=10.267, P=0.006;χ2=10.634, P=0.001). Individuals that carry the rs8444 C allele or CC genotype had a remarkably lower risk of bladder cancer compared with those that carry the T allele or TT genotype (OR=0.489, 95%CI:0.309-0.772, P=0.002;OR=0.258, 95%CI:0.081-0.827, P=0.023). No significant correlations were observed between the T/C allele frequencies and genotype distri-butions of rs8444 and TNM stage, as well as histological grade and distant metastasis in bladder cancer (P>0.05). Conclusion: The rs8444 C allele or CC genotype located within LASS2-3′-UTR can lower the susceptibility of bladder cancer among the residents of Yun-nan, China. However, it is not associated with the TNM stage, histological grade, and distant metastasis.
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Objective To compare the clinical effect of 2D and 3D laparoscopic radical prostectomy and summarize surgical experience of laparoscopic radical prostectomy of early prostate cancer.MethodsThe clinical data of 34 cases of prostate cancer treated in our institute from November 2015 to April 2016 were collected and analyzed retrospectively. The patients in observation group (11 cases) were treated by 3D laparoscopic radical prostectomy, while those in control group (23 cases) were given 2D laparoscopic radical prostectomy. The operation time, intraoperative bleeding volume, postoperative drainage time, quantity of drainage fluid within 24 hours postoperatively, indwelling catheter time, hospital time, positive surgical margin rate, potence rate, 30d-urinary continence rate and complications were compared between the two groups.Results All operations were successfully performed. There were no signiifcant differences in operation time, intraoperative bleeding volume, postoperative drainage time, quantity of drainage lfuid within 24 hours postoperatively, indwelling catheter time, hospital time, positive surgical margin rate, potence rate, 30d-urinary continence rate and complications between the two groups (P > 0.05). In observation group, the operation time was (153.52 ± 30.47) min and the potence rate was 50.0 %, 4 cases with uroclepsia (36.4 %), 1 case with urine leakage (9.1 %), no patient had urethral stricture or positive surgical margin, the 30d-urinary continence rate was 72.7 %. In control group, the operation time was (164.73 ± 28.65) min and the potence rate was 38.9 %, 13 cases with uroclepsia (56.5 %), 4 cases with urine leakage (17.4 %), 1 case with urethral stricture (4.3 %), 2 cases with positive surgical margin (8.7 %), 30d-urinary continence rate was 60.9 %.ConclusionLaparoscopic radical prostectomy is a safe, effective and less invasive method for treating early prostate cancer patients. Also 3D laparoscopic radical prostectomy play the similar functional results compared with 2D laparoscopic radical prostectomy, but 3D laparoscopic has the advantage in three dimensions space sense and accurate operation, it is worthy of promoting clinical application.
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Nucleic acid aptamer is the systematic evolution of ligands by exponential enrichment syn-thesized in vitro screening technology resulting single-stranded oligonucleotides (DNA or RNA),by folding into unique spatial structure specific recognition binding target molecules.Aptamers function is similar to the anti-bodies but more specifically,as novel molecular probes for the field of cancer therapeutics and diagnostics.
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To assess the outcome of 200 men with bladder calculi [BC] and benign prostatic hyperplasia [BPH] who underwent transurethral ballistic lithotripsy [BL] as well as transurethral plasmakinetic resection of prostate [PKRP]. Retrospective study Department of Urology, The Second AffiliatedHospital of Kunming Medical University, Kunming, China In a trial at our department, we performed a retrospective analysis of the results of 200 patients who underwent endoscopic removal of BC and PKRP. BL and PKRP International Prostate symptom score [IPSS], Quality of life scores [QOL], Maximum flowrate [Qmax], Residual urine volume [RUV] and postoperative complications At two years, the results showed that IPSS, QOL, Qmax and RUV were all significantly different between preoperative and postoperative data. Urethral stricture, short-term urinary incontinence, recurrent calculi, and BPH recurrence developed in 3.5% [n=7], 5.0% [n=10], 1.0% [n=2], and 1.5% [n=3] of the 200 patients, respectively. Overall, 178 [89.0%] cases did not have any complications. Combined BL and PKRP is an effective, safe, and economical way of treating patients with BC and BPH simultaneously
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Clinical data of 53 patients with lower caliceal stone during August 2005 and March2007 were analyzed retrospectively.The stones were 11-35 mm in diameter.Under the guidance of X-ray.single renal tract parallel to the lower caliceal for percutaneous nephrolithotomy was established.The procedures were successful in all the patients.Fifty patients were stone free after first minimally invasive pereutaneous nephrolithotomy(MPCNL),2 were stone free following second MPCNL,1 saw residual small stones clear off spontaneously during the follow-up period.Operative time was 65-162 minutes.and blood loss was 10-200 ml.No severe complications or death occurred.MPCNL may be related with minimal invasion and fewer complications,thus provides an effective and safe way of lower caliceal stone treatment.
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Objective To elucidate the diagnosis and treatment of the bladder mixed tumor.Methods 16 cases treated from Jun 1990 to Aug 2004 were reviewed.The clinical manifestations,diagnosis,treatment and prognosis were discussed.Correlative literature was reviewed at the same time.Results 16 cases of the bladder mixed tumor accounted for 6.9% of 223 bladder tumor patients in the same period,of which 7 of 16 were transitional squamous cell carcinoma,4 transitional adenocarcinoma,3 transitional squamous adenocarcinoma and 2 squamous adenocarcinoma mixed tumor.Most of the patients had irritable bladder symptoms and hematurine.Partial cystectomy was undergone for 3 of 16 cases,total cystectomy for 10 and radical total cystectomy for 3.The main treatment was partial or total cystectomy.The overall survival rates at 1,3 and 5 years post operation were 81.3%,56.3% and 12.5% respectively.Conclusion There were higher malignancy and worse prognosis in bladder mixed tumor.Early diagnosis and therapy might prolong survival.Radical total cystectomy seems to be the best method of treatment.