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Summary of clinical experience and feasibility of day-time tubeless percutaneous nephrolithotomy

Journal of Modern Urology.2024;29(5):385-387,393. doi:10.3969/j.issn.1009-8291.2024.05.001

Percutaneous nephrolithotomy(PCNL)is important in the treatment of upper urinary tract stones,and tubeless day-time surgery is a promising approach.It can improve the patients'hospitalization experience and shorten hospitalization time,but it also faces risks such as difficulty in managing residual stones after surgery,urinary extravasation caused by poor ureteral drainage,and so on.Currently,there are insufficient guiding principles in this regard.Based on our experience and relevant literature,this paper will discuss the technical points of day-time tubeless PCNL and explore its feasibility.

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Perioperative application of prucalopride in robot-assisted laparoscopic radical cystectomy and urinary diversion

Fayun WEI ; Ning JIANG ; Huaying LIU ; Baofu FENG ; Shun ZHANG ; Jiarong DING ; Weidong GAN ; Shiwei ZHANG ; Hongqian GUO ; Rong YANG

Journal of Modern Urology.2024;29(5):394-398. doi:10.3969/j.issn.1009-8291.2024.05.003

Objective To explore the effects of prucalopride(PRUC)on the intestinal function during the perioperative period of robot-assisted laparoscopic radical cystectomy(RARC)and urinary diversion.Methods A total of 75 patients undertaking RARC with urinary diversion(orthotopic neobladder or ileal bladder)in Nanjing Drum Hospital during Jan.and Dec.2021 were divided into PRUC group(n=28)and control group(n=47)according to whether they took PRUC or not.Postoperative intestinal ventilation time and defecation time,drainage tube retention time,tolerance time for first intake of semi-flow food,postoperative hospital stay,and incidence of complications were observed and recorded in the two groups.Postoperative C-reactive protein(CRP)and neutrophil/lymphocyte ratio(NLR)were compared.Results The PRUC group had shorter intestinal ventilation time and defecation time[(47.14±16.31)h vs.(74.04±35.33)h,P＜0.01;(86.14±30.47)h vs.(123.57±79.12)h,P=0.02],smaller change of ΔCRP and ΔNLR[(79.99±29.71)mg/L vs.(127.75±56.98)mg/L;(9.24±6.43)vs.(16.11±9.90),P＜0.01].All complications were minor,the incidence of intestinal obstruction in PRUC group tended to decrease within 90 days after operation(P=0.38),and there was no significant difference in other complications between the two groups(P＞0.05).Conclusion The perioperative use of PRUC in RARC with urinary diversion is safe and effective,which can promote the recovery of intestinal function after operation.

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Clinical value of"four longitudinal,two transverse planes"method of membrane anatomy in laparoscopic radical cystectomy

Dongping BAO ; Peifeng ZHONG ; Guohao WU ; Haomin LI ; Dongjiang CHEN ; Xianguo HU ; Bingquan WU ; Zheng CHEN ; Zexiong GUO ; Dongming YE ; Caiyong LAI

Journal of Modern Urology.2024;29(5):399-405. doi:10.3969/j.issn.1009-8291.2024.05.004

Objective To explore the clinical value of laparoscopic radical cystectomy based on fascia anatomy for bladder cancer treatment.Methods The clinical data of 51 patients with bladder cancer who underwent 3D laparoscopic radical cystectomy during Jan.2015 and Jun.2022 were retrospectively analyzed.The surgery was performed based on membrane anatomy technology along four longitudinal and two transverse planes to complete the radical cystectomy.The pelvic plexus was preserved for patients with normal preoperative sexual function.Results All surgeries were completed without conversion to open operation.The mean operation time was(502.52±108.99)min,mean intraoperative blood loss was(275.96±155.18)mL,mean postoperative drainage time was(4.14±2.41)d,and the mean postoperative hospital stay was(16.37±4.85)d.The mean number of lymph nodes removed was(17.98±11.48).The mean postoperative follow-up was(30.27±19.39)months.At the last follow-up,no Clavien ≥grade 3 complications were observed.The estimated overall survival(OS),tumor-specific survival(TSS),and recurrence-free survival(RFS)were 82.4％,92.2％,and 88.2％,respectively.The lymph node positive patients had shorter OS and RFS(60.0％,60.0％)than the lymph node negative patients(84.8％,91.3％).Among the 19 male patients who underwent radical cystectomy with pre-exposure and preservation of pelvic plexus,daytime and nocturnal continence rate were 83.3％and 72.2％,respectively,and 17 patients recovered potency within 6 months postoperatively.Conclusion Laparoscopic radical cystectomy based on fascia anatomy is safe and effective in laparoscopic radical cystectomy,with standardized surgical procedure,satisfactory oncological outcomes,little hemorrhage,few complications and fast recovery.

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Value of controlling nutritional status score and related inflammatory indicators in predicting the prognosis of patients with clear cell renal cell carcinoma:a multi-center retrospective study

Fang XIE ; Chuanzong FENG ; Cheng ZHANG ; Xuejiao SHEN ; Jian ZHOU

Journal of Modern Urology.2024;29(5):406-411. doi:10.3969/j.issn.1009-8291.2024.05.005

Objective To explore the value of controlling nutritional status(CONUT)score and related inflammatory indicators in predicting the prognosis of clear cell renal cell carcinoma(ccRCC)patients,to provide a reference for better clinical assessment and individualized treatment plan.Methods A retrospective study was conducted on 132 patients with ccRCC admitted to four comprehensive hospitals in Yibin during 2010 and 2018.Patients'medical and follow-up records were collected,and receiver operating characteristic(ROC)curve was drawn to analyze the area under the curve(AUC)and optimal cut-off value of CONUT score and related indicators.Survival curve was plotted with Kaplan-Meier method,and the influencing factors of prognosis were analyzed with Log-rank test and Cox regression.Results During the follow-up of 62(53,71)months,37(28.03％)deaths occurred.The disease-specific survival(DSS)and progression-free survival(PFS)were 51(41,58)and 46(35,56)months,respectively.The 3-year and 5-year DSS and PFS were 84.09％and 71.97％,and 75.00％and 71.97％,respectively.The AUC of CONUT score,neutrophil to lymphocyte ratio(NLR),platelet to lymphocyte ratio(PLR),and lymphocyte to monocyte ratio(LMR)were 0.980,0.905,0.899 and 0.884,respectively,with the optimal cut-off values of 3.50,3.19,89.07 and 3.56,respectively.Cox regression showed that CONUT score(HR=0.042,95％CI:0.013-0.140)and PLR(HR=0.182,95％CI:0.045-0.744)were associated with DSS;CONUT score(HR=0.029,95％CI:0.010-0.086)and LMR(HR=2.984,95％CI:1.227-7.258)were associated with PFS.Conclusion The prognosis of ccRCC patients is related to their nutritional,immune,and inflammatory status.CONUT score and inflammatory factors(PLR,LMR)may be important predictors of DSS and PFS.

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Comparison of the efficacy and safety of suction ureteral stent and conventional ureteral stent in the treatment of urinary calculi

Yankuang GUO ; Zhiqiang RAN ; Tianbo LI ; Geng HUANG ; Dingwen GUI

Journal of Modern Urology.2024;29(5):412-416. doi:10.3969/j.issn.1009-8291.2024.05.006

Objective To compare the efficacy and safety of suction ureteral stent and conventional ureteral stent in the treatment of patients with urinary calculi,so as to evaluate the clinical application value.Methods A total of 196 patients with urinary calculi admitted to in our hospital during Dec.2022 and May 2023 were selected to undergo ureteral holmium laser lithotripsy with hard ureteroscopy or soft ureteroscopy,including 100 with suction ureteral stent(suction group)and 96 with conventional ureteral stent(conventional group).Basic data,visual analog scale(VAS),extubation time,extubation success rate,gross hematuria,lumbar and abdominal pain,and urinary tract infection were compared between the two groups.Results Compared with the conventional group,the suction group had lower VAS[(2.94±1.24)vs.(5.78±1.50)],shorter extubation time[(4.28±0.51)min vs.(13.51±1.81)min],and the differences were statistically significant(P＜0.01).After extubation,the suction group had a lower incidence of complications(P＜0.05).Conclusion Compared with conventional ureteral stent,extraction of suction ureteral stent has the advantages of simpler operation,better patient comfort,fewer complications,shorter extubation time and lower medical costs.

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Comparison of flexible terminal suction ureteral access sheath versus negative pressure ureteral access sheath in the treatment of kidney stones with diameter＜2 cm

Jianhang DAI ; Yunxin XIAO ; Weiming YANG ; Kaixuan CUI ; Chengjie ZHANG ; Guangyao CHEN

Journal of Modern Urology.2024;29(5):417-420. doi:10.3969/j.issn.1009-8291.2024.05.007

Objective To compare the safety and efficacy of flexible terminal suction ureteral access sheath(FTS-UAS)and negative pressure ureteral access sheath(NPUAS)in flexible ureteroscopic lithotripsy with holmium laser in treatment of renal calculi less than 2 cm in diameter.Methods A total of 68 patients(largest diameter of stone＜2 cm)with renal calculi treated in Yangjiang Hospital Affiliated to Guangdong Medical University during Nov.2022 and Aug.2023 were divided into FTS-UAS group(n=34)and NPUAS group(n=34)according to different surgical methods.The perioperative parameters and stone-free rate(SFR)were compared between the two groups.Results The average SFR on the first day after operation was significantly higher in the FTS-UAS group than in the NPUAS group[85.3％(29/34)vs.61.8％(21/34),P=0.028].The operation time was significantly lower in the FTS-UAS group than in the NPUAS group[(65.85±13.16)min vs.(75.59±20.21)min,P=0.022].For lower calyceal renal calculi,the SFR was significantly higher in the FTS-UAS group than in the NPUAS group[82.4％(14/17)vs.43.8％(7/16),P=0.032].One month after operation,the SFR was higher in the FTS-UAS group than in the NPUAS group[94.1％(32/34)vs.85.3％(29/34),P=0.452].There were no significant differences in hemoglobin reduction,serum creatinine level,postoperative complications,hospital stay and hospitalization costs between the two groups(P＞0.05).Conclusion FTS-UAS in flexible ureteroscopic lithotripsy can shorten the operation time and improve stone-clearance rate,which is safe,effective,and worthy of clinical promotion.

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Differential analysis of HER-2 expression in urothelial bladder carcinoma and upper urothelial carcinoma

Jianbing LIU ; Zhongjin YUE ; Hong CHANG ; Panfeng SHANG ; Yating LIU

Journal of Modern Urology.2024;29(5):421-426,431. doi:10.3969/j.issn.1009-8291.2024.05.008

Objective To investigate the differences in human epidermal factor receptor 2(HER-2)expression between urothelial bladder carcinoma(UBC)and upper tract urothelial carcinoma(UTUC)and the relationship between HER-2 expression and disease recurrence and progression.Methods Clinical data of 184 patients with urothelial carcinoma admitted in our hospital during Nov.2015 and Jun.2022 were retrospectively analyzed.The patients were divided into UBC group and UTUC group.The positive expression rate of HER-2,recurrence-free survival(RFS)and progression-free survival(PFS)of the two groups were compared,and the survival curve was drawn.The effects of HER-2 expression on the recurrence and progression of disease were analyzed with Cox proportional hazards model.Results The positive expression of HER-2 was significantly higher in UBC patients than in UTUC patients(49.6％vs.32.2％,P=0.027).Among UTUC patients,there was no statistically significant difference in the positive expression of HER-2 in those with renal pelvis cancer and ureteral cancer(30.6％vs.34.8％,P＞0.05).Cox analysis showed that HER-2 positive expression affected UBC recurrence(P＜0.001),but had no effects on the recurrence and progression of UTUC;HER-2 positive expression(P＜0.001),tumor diameter ≥3 cm(P＜0.001),stage ≥T2(P=0.003)and multiple tumor foci(P=0.033)affected the progression of UBC.Conclusion The positive expression of HER-2 is significantly higher in UBC than in UTUC,which can increase the risk of recurrence and progression of UBC,but has no significant effects on the recurrence and progression of UTUC.HER-2 expression is not recommended to independently predict the risk of recurrence and progression of UTUC.

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Establishment and verification of a prediction model of venous thromboembolism in elderly patients with urinary system calculi after endoscopic surgery

Songlin CHEN ; Jun QU ; Cong HUANG ; Jinzhu XIAO

Journal of Modern Urology.2024;29(5):427-431. doi:10.3969/j.issn.1009-8291.2024.05.009

Objective To analyze the risk factors of venous thromboembolism(VTE)after endoscopic surgery in elderly patients with urinary system calculi,construct a prediction model and validate it.Methods A retrospective analysis was conducted on the clinical data of 402 elderly patients(≥ 60 years)with urinary system calculi who underwent endoscopic surgery in our hospital during Jan.2018 and Jan.2023.The patients were divided into VTE group(n=43)and non-VTE group(n=359)based on whether VTE occurred after surgery.Risk factors of VTE were screened with univariate and multivariate logistic regression analyses.Based on the screening results(P＜0.05 for the factor),a nomogram prediction model was established,the receiver operating characteristic(ROC)curve was drawn,the area under the curve(AUC)was calculated to determine the efficacy of the model,and a calibration chart was drawn to determine the accuracy of the model.Results Univariate analysis showed that age＞70 years,body mass index(BMI)≥30,VTE history,history of malignant tumors,diabetes,operation time＞180 min,diuretic use during operation,and postoperative ambulation time＞24 h were risk factors of VTE(P＜0.05).Logistic regression analysis showed that age＞70 years,BMI ≥ 30,history of VTE,history of malignant tumors,and operation time＞180 min were independent risk factors of VTE(P＜0.05).The AUC in the ROC curve of the validation set data was 0.789(95％CI:0.731-0.848,P＜0.001).The calibration chart showed that the calibration curve was close to the standard curve(Brier=0.13).Conclusion Age＞70 years,BMI ≥30,history of VTE,history of malignant tumors,and surgery time＞180 min are independent risk factors of postoperative VTE in elderly patients with urinary system calculi undergoing endoscopic surgery.The prediction model can effectively predict the risk factors of postoperative VTE.

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Efficacy of 450 nm blue laser vaporization prostatectomy in the treatment of benign prostatic hyperplasia

Yu WANG ; Wei XU ; Fayou ZHOU ; Rui XU ; Hui XIE ; Qiang CUI ; Songlin GUO

Journal of Modern Urology.2024;29(5):432-434,444. doi:10.3969/j.issn.1009-8291.2024.05.010

Objective To evaluate the safety and efficacy of 450 nm blue laser vaporization prostatectomy in the treatment of benign prostatic hyperplasia(BPH).Methods A retrospective analysis was conducted on 40 BPH patients treated with 450 nm blue laser vaporization prostatectomy at our hospital during Mar.and Nov.2023.The preoperative and postoperative maximum urinary flow rate(Qmax),post-void residual volume(PVR),international prostate symptom score(IPSS),and quality of life(QoL)score were compared.The operation time,postoperative bladder irrigation time,and postoperative hemoglobin decrease were recorded.Results All operations were successful.One month after surgery,the Qmax[(7.9±2.1)mL/s vs.(16.8±2.5)mL/s]was significantly higher,while PVR[(110.0±42.1)mL vs.(14.6±11.4)mL],IPSS[(25.0±3.1)vs.(11.8±4.0)],and QoL[(5.1±0.9)vs.(2.5±0.6)]were significantly lower,with statistical significance(P＜0.05).The operation time was(52.5±15.5)min,the bladder irrigation time was(22.3±4.9)h,the postoperative hemoglobin drop was(6.5±3.8)g/L.Urinary retention occurred in 2 patients after removal of the catheter.Gross hematuria occurred in 1 patient after discharge.Conclusion Vaporization prostatectomy with 450 nm blue laser can significantly improve clinical symptoms and perioperative safety,with high vaporization efficiency and good hemostatic effects.It is worthy of clinical promotion and application.

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Efficacy of"ditching and ridge removal"with 450 nm semiconductor blue laser in the treatment of large volume benign prostatic hyperplasia

Fanzhuo TU ; Xianyan CHEN ; Yaping QU ; Song LI ; Yan HU ; Chao MAN ; Changguan GE ; Yongwei ZHAO

Journal of Modern Urology.2024;29(5):435-439. doi:10.3969/j.issn.1009-8291.2024.05.011

Objective To explore the efficacy and safety of"ditching and ridge removal"with 450 nm semiconductor blue laser in the treatment of large volume benign prostatic hyperplasia(BPH),in order to promote the clinical application of this method.Methods A retrospective study was conducted on 30 patients with large volume BPH treated with"ditching and ridge removal"with 450 nm semiconductor blue laser in Yingsheng Branch of Tai'an Central Hospital during Sep.and Dec.2023.The laser operation time,level of hemoglobin before and after operation,bladder irrigation time after operation,urinary catheter indwelling time,postoperative hospital stay,and intraoperative and postoperative complications were recorded.The changes of international prostate symptom score(IPSS),quality of life scale(QoL)score,maximum urinary flow rate(Qmax)and post-void residual volume(PVR)were compared before and 1 month after operation.Results The volume of prostate was(104.5±14.52)mL,the laser operation time was(20.13±2.98)min,and the bladder irrigation time was(20.27±2.56)h.The catheter was removed in all patients 2 days after operation,and all patients were discharged 3 days after operation.One month after operation,the IPSS,QoL,Qmax and PVR were significantly improved as compared with those before operation(P＜0.05).No complications occurred during the follow-up.Conclusion"Ditching and ridge removal"with 450 nm semiconductor blue laser is a new,safe and effective method in the treatment of large volume BPH.

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