1.Progressive pre-disconnection of urethral mucosal flap during transurethral plasmakinetic enucleation of prostate improves postoperative urinary continence.
Chunxiao CHEN ; Chunxiao LIU ; Peng XU ; Binshen CHEN ; Abai XU
Journal of Zhejiang University. Medical sciences 2023;52(2):156-161
		                        		
		                        			OBJECTIVES:
		                        			To investigate the effect of progressive pre-disconnection of urethral mucosal flap during transurethral plasmakinetic enucleation of prostate (TUPEP) on early recovery of urinary continence.
		                        		
		                        			METHODS:
		                        			Clinical data of patients with benign prostatic hyperplasia (BPH) admitted in Zhujiang Hospital of Southern Medical University during February and May 2022 were collected. All the patients underwent TUPEP, and the progressive pre-disconnection of urethral mucosal flap was performed in the procedure. The total operation time, enucleation time, postoperative bladder irrigation time and catheter indwelling time were recorded. Urinary continence was evaluated 24 h, 1 week, and 1, 3, 6 months after the removal of urinary catheter.
		                        		
		                        			RESULTS:
		                        			All surgeries were successfully completed at one time with less intraoperative bleeding, and there were no complications such as rectal injury, bladder injury or perforation of prostate capsule. The total operation time was (62.2±6.5) min, the enucleation time was (42.8±5.2) min, the postoperative hemoglobin decrease by (9.5±4.5) g/L, the postoperative bladder irrigation time was (7.9±1.4) h, and the postoperative catheter indwelling time was 10.0 (9.2, 11.4) h. Only 2 patients (3.6%) had transient urinary incontinence within 24 h after catheter removal. No urinary incontinence occurred at 1 week, and 1, 3, 6 months after operation, and no safety pad was needed. The Qmax at 1 month after operation was 22.3 (20.6, 24.4) mL/s, international prostate symptom scores were 8.0 (7.0, 9.0), 5.0 (4.0, 6.0) and 4.0 (3.0, 4.0) at 1, 3 and 6 months after surgery, and quality of life scores at 1, 3 and 6 months after surgery were 3.0 (2.0, 3.0), 2.0 (1.0, 2.0) and 1.0 (1.0, 2.0), all of these indicators were better than those before surgery (all P<0.01).
		                        		
		                        			CONCLUSIONS
		                        			In the treatment of BPH, the application of progressive pre-disconnection of urethral mucosal flap in TUPEP can completely remove the hyperplastic glands and promote early recovery of postoperative urinary continence with less perioperative bleeding and decreased surgical complications.
		                        		
		                        		
		                        		
		                        			Male
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Prostate
		                        			;
		                        		
		                        			Prostatic Hyperplasia/surgery*
		                        			;
		                        		
		                        			Transurethral Resection of Prostate/methods*
		                        			;
		                        		
		                        			Quality of Life
		                        			;
		                        		
		                        			Urinary Bladder
		                        			;
		                        		
		                        			Urinary Incontinence/surgery*
		                        			;
		                        		
		                        			Treatment Outcome
		                        			
		                        		
		                        	
2.Predictive model of early urinary continence recovery based on prostate gland MRI parameters after laparoscopic radical prostatectomy.
Hai MAO ; Fan ZHANG ; Zhan Yi ZHANG ; Ye YAN ; Yi Chang HAO ; Yi HUANG ; Lu Lin MA ; Hong Ling CHU ; Shu Dong ZHANG
Journal of Peking University(Health Sciences) 2023;55(5):818-824
		                        		
		                        			OBJECTIVE:
		                        			Constructing a predictive model for urinary incontinence after laparoscopic radical prostatectomy (LRP) based on prostatic gland related MRI parameters.
		                        		
		                        			METHODS:
		                        			In this study, 202 cases were included. All the patients were diagnosed with prostate cancer by prostate biopsy and underwent LRP surgery in Peking University Third Hospital. The preoperative MRI examination of all the patients was completed within 1 week before the prostate biopsy. Prostatic gland related parameters included prostate length, width, height, prostatic volume, intravesical prostatic protrusion length (IPPL), prostate apex shape, etc. From the first month after the operation, the recovery of urinary continence was followed up every month, and the recovery of urinary continence was based on the need not to use the urine pad all day long. Logistic multivariate regression analysis was used to analyze the influence of early postoperative recovery of urinary continence. Risk factors were used to draw the receiver operator characteristic (ROC) curves of each model to predict the recovery of postoperative urinary continence, and the difference of the area under the curve (AUC) was compared by DeLong test, and the clinical net benefit of the model was evaluated by decision curve analysis (DCA).
		                        		
		                        			RESULTS:
		                        			The average age of 202 patients was 69.0 (64.0, 75.5) years, the average prostate specific antigen (PSA) before puncture was 12.12 (7.36, 20.06) μg/L, and the Gleason score < 7 points and ≥ 7 points were 73 cases (36.2%) and 129 cases (63.9%) respectively, with 100 cases (49.5%) at T1/T2 clinical stage, and 102 cases (50.5%) at T3 stage. The prostatic volume measured by preoperative MRI was 35.4 (26.2, 51.1) mL, the ratio of the height to the width was 0.91 (0.77, 1.07), the membranous urethral length (MUL) was 15 (11, 16) mm, and the IPPL was 2 (0, 6) mm. The prostatic apex A-D subtypes were 67 cases (33.2%), 80 cases (39.6%), 24 cases (11.9%) and 31 cases (15.3%), respectively. The training set and validation set were 141 cases and 61 cases, respectively. The operations of all the patients were successfully completed, and the urinary continence rate was 59.4% (120/202) in the 3 months follow-up. The results of multivariate analysis of the training set showed that the MUL (P < 0.001), IPPL (P=0.017) and clinical stage (P=0.022) were independent risk factors for urinary incontinence in the early postoperative period (3 months). The nomogram and clinical decision curve were made according to the results of multivariate analysis. The AUC value of the training set was 0.885 (0.826, 0.944), and the AUC value of the validation set was 0.854 (0.757, 0.950). In the verification set, the Hosmer-Lemeshow goodness-of-fit test was performed on the model, and the Chi-square value was 5.426 (P=0.711).
		                        		
		                        			CONCLUSION
		                        			Preoperative MUL, IPPL, and clinical stage are indepen-dent risk factors for incontinence after LRP. The nomogram developed based on the relevant parameters of MRI glands can effectively predict the recovery of early urinary continence after LRP. The results of this study require further large-scale clinical research to confirm.
		                        		
		                        		
		                        		
		                        			Male
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Prostate/surgery*
		                        			;
		                        		
		                        			Prostatectomy/adverse effects*
		                        			;
		                        		
		                        			Prostatic Neoplasms/pathology*
		                        			;
		                        		
		                        			Urinary Incontinence/etiology*
		                        			;
		                        		
		                        			Laparoscopy/methods*
		                        			;
		                        		
		                        			Magnetic Resonance Imaging/adverse effects*
		                        			;
		                        		
		                        			Recovery of Function
		                        			;
		                        		
		                        			Retrospective Studies
		                        			
		                        		
		                        	
3.Relationship between recovery of urinary continence after laparoscopic radical prostatectomy and preoperative/postoperative membranous urethral length.
Fan ZHANG ; Qu CHEN ; Yi Chang HAO ; Ye YAN ; Cheng LIU ; Yi HUANG ; Lu Lin MA
Journal of Peking University(Health Sciences) 2022;54(2):299-303
		                        		
		                        			OBJECTIVE:
		                        			To evaluate the relationship between recovery of urinary continence after laparoscopic radical prostatectomy (LRP) and preoperative/postoperative membranous urethral length (MUL) on magnetic resonance imaging.
		                        		
		                        			METHODS:
		                        			We retrospectively analyzed 69 patients with pathologic confirmed prostate carcinoma who underwent laparoscopic radical prostatectomy. Preoperative MUL was defined as the distance from the apex of prostate to the level of the urethra at penile bulb on the coronal image. Postoperative MUL was defined as the distance from the bladder neck to the level of the urethra at the penile bulb on the coronal image. MUL-retained rate was defined as the percentage of postoperative MUL to preoperative MUL. All patients received extraperitoneal LRP. Patients reported freedom from using safety pad (0 pad/d) were defined as urinary continence. Multivariate Logistic regression analyses were used to identify independent predictors of early continence recovery after LRP. Kaplan-Meier analyses and log-rank test were used to compare time to continence recovery between the groups.
		                        		
		                        			RESULTS:
		                        			For all the 69 patients, the average age was (71.4±8.6) years. The prostate specific antigen before biopsy was (23.40±30.31) μg/L, and the mean preoperative prostatic volume by magnetic resonance imaging was (39.48±22.73) mL. The mean preoperative MUL was (13.0±3.3) mm, the mean postoperative MUL was (12.3±3.4) mm, and the mean MUL-retained rate was 93.9%±6.2%. The continence rate for all the patients after LRP was 57.9% and 97.1% in three months and one year, respectively. The patients achieving early continence recovery had significant smaller prostatic volume (P=0.028), longer preoperative MUL and postoperative MUL (P < 0.001). Multivariate Logistic regression analyses revealed postoperative MUL (P < 0.001) were predictors of continence recovery after LRP. Kaplan-Meier analyses and Log-rank test revealed that preoperative MUL (≥14 mm vs. < 14 mm, P < 0.001) and postoperative MUL (≥13 mm vs. < 13 mm, P < 0.001), MUL-retained rate (< 94% vs. ≥94%, P < 0.001) were all significantly associated with continence recovery.
		                        		
		                        			CONCLUSION
		                        			Post-operative MUL was independently predictors of early continence recovery after LRP. Preoperative MUL, postoperative MUL and MUL retained rate were significantly associated with recovery of urinary continence.
		                        		
		                        		
		                        		
		                        			Aged
		                        			;
		                        		
		                        			Aged, 80 and over
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Laparoscopy
		                        			;
		                        		
		                        			Male
		                        			;
		                        		
		                        			Middle Aged
		                        			;
		                        		
		                        			Prostate/surgery*
		                        			;
		                        		
		                        			Prostatectomy/adverse effects*
		                        			;
		                        		
		                        			Prostatic Neoplasms/surgery*
		                        			;
		                        		
		                        			Recovery of Function
		                        			;
		                        		
		                        			Retrospective Studies
		                        			;
		                        		
		                        			Urethra
		                        			;
		                        		
		                        			Urinary Incontinence/etiology*
		                        			
		                        		
		                        	
4.Quality of life of patients with locally advanced rectal cancer after neoadjuvant therapy and sphincter-preserving surgery.
Wei Kun SHI ; Yun Hao LI ; Xiao Yuan QIU ; Yi XIAO ; Jiao Lin ZHOU ; Bin WU ; Guo Le LIN
Chinese Journal of Gastrointestinal Surgery 2022;25(4):348-356
		                        		
		                        			
		                        			Objective: To investigate quality of life (QoL) of patients with locally advanced rectal cancer (LARC) who underwent low anterior resection with protective stoma under neoadjuvant therapy mode, and to explore the changes of QoL of patients from before neoadjuvant therapy to 12 months after stoma reversal. Methods: A descriptive case series study was carried out. A retrospective study was performed on patients with mid and low LARC who received complete neoadjuvant long course radiotherapy and chemotherapy, followed by radical low anterior resection (LAR) combined with protective stoma at Peking Union Medical College Hospital from December 2017 to January 2020. Inclusion criteria: (1) patients with rectal MRI assessment of mT3-4b or mN1-2 without distant metastasis (M0) before neoadjuvant therapy; (2) distance from tumor lower margin to the anal verge <12 cm; (3) rectal adenocarcinoma confirmed by biopsy before neoadjuvant therapy; (4) complete cycle of neoadjuvant therapy; (5) patients undergoing radical LAR with sphincter preservation and protective ostomy; (6) patients receiving follow-up for more than 12 months after stoma reversal. Exclusion criteria: (1) patients as grade Ⅳ to Ⅴclassified by the American Society of Anesthesiologists (ASA); (2) patients with multiple primary colorectal cancer; (3) patients with history of other malignant tumors in the past 5 years; (4) patients of emergency surgery; (5) pregnant or lactating women; (6) patients with history of severe mental illness; (7) patients with contraindication of MRI, radiotherapy, chemotherapy, or surgical treatment. A total of 83 patients were enrolled, including 51 males and 28 females with median age of 59 years and mean BMI of (24.4±3.1) kg/m(2). EORTC QLQ-CR29, international erectile function index (IIEF), Wexner constipation score and low anterior resection syndrome (LARS) score were applied to investigate the QoL of the patients before neoadjuvant therapy, 3 and 12 months after ostomy reversal, including rectal anal function and sexual function. M (P25, P75) was used for the scores of the scale. Results: (1) EORTC QLQ-CR29 score showed that before neoadjuvant therapy, before surgery, 3 months and 12 months after ostomy reversal, anxiety [64.4 (52, 0, 82.5), 75.3 (66.0, 89.5), 82.6 (78.5, 90.0), 83.6 (78.0, 91.0)] and concern about body image [76.8 (66.0, 92.0), 81.1 (76.5, 91.5), 85.5 (82.5, 94.0), 86.1 (82.0, 92.0)] were improved (all P<0.01); pelvic pain [5.4 (2.0, 8.0), 5, 0 (2.0, 7.8), 3.9 (1.0, 5.0), 3.0 (1.0, 5.0)], urinary incontinence [15.7 (7.0, 22.0), 11.1 (0, 17.5), 10.0 (0, 17.0), 9.9 (0, 16.0)], impotence [14.3 (4.2, 19.0), 12.2 (0, 16.8), 5.6 (0, 10.0), 5.2 (0.2, 8.0)], urinate [26.4 (13.0, 38.5), 13.9 (0, 20.0), 13.4 (2.5, 21.5), 13.2 (2.0, 20.0)] and mucous bloody stool [4.7 (3.0, 6.0), 2.6 (0, 5.0), 2.2 (0, 5.0), 1.9 (0, 4.0)] were improved as well (all P<0.01). The scores fluctuated in the improvement of male sexual function, abdominal pain, dry mouth, worry about body mass change, skin pain and dyspareunia, but the symptoms were significantly improved after ostomy reversal compared with before neoadjuvant therapy (all P<0.05). There were no significant changes in female sexual function, dysuria, dysgeusia and fecal incontinence after ostomy reversal compared with before neoadjuvant therapy (all P>0.05). (2) IIEF scale showed that all scores were similar before and after neoadjuvant therapy (all P>0.05). (3) Rectal and anal function scale revealed that before neoadjuvant therapy, before operation, 3 months and 12 months after stoma reversal, gas incontinence [3.1 (0, 4.0), 2.3 (0, 4.0), 1.8 (0, 4.0), 1.2 (0, 3.0)] and urgent defecation [7.2 (0, 11.0), 5.2 (0, 11.0), 2.9 (0, 9.0), 1.7 (0, 0)] were improved (all P<0.001). In terms of improving incomplete emptying sensation, the symptoms fluctuated, but the symptoms improved significantly after ostomy reversal compared with before neoadjuvant therapy (all P<0.05). While the symptoms of assistance with defecation [0 (0, 0), 0.7 (0, 1.0), 0.6 (0, 1.0), 0.7 (0, 1.0)] and defecation failure [0.2 (0, 0), 1.0 (0, 2.0), 0.8 (0, 1.5), 0.8 (0, 1.0)] showed a worsening trend (all P<0.001). Stratified analysis was performed on patients with different efficacy of neoadjuvant therapy to compare the changes in QoL before and after neoadjuvant therapy. Patients with less sensitive and more sensitive neoadjuvant therapy showed similar changes in function and symptoms. Patients with less sensitive therapy showed significant improvement in dysuria, urinary incontinence, skin pain and dyspareunia (all P<0.05), and the symptom of defecation frequency in more sensitive patients was significantly improved (P<0.05). Conclusions: For patients with LARC, neoadjuvant radiochemotherapy combined with radical LAR and protective stoma can improve QoL in many aspects. It is noted that patients show a worsening trend in the need for assistance with defecation and in defecation failure.
		                        		
		                        		
		                        		
		                        			Dyspareunia
		                        			;
		                        		
		                        			Dysuria
		                        			;
		                        		
		                        			Female
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Lactation
		                        			;
		                        		
		                        			Male
		                        			;
		                        		
		                        			Middle Aged
		                        			;
		                        		
		                        			Neoadjuvant Therapy
		                        			;
		                        		
		                        			Neoplasms, Second Primary
		                        			;
		                        		
		                        			Pain
		                        			;
		                        		
		                        			Postoperative Complications
		                        			;
		                        		
		                        			Quality of Life
		                        			;
		                        		
		                        			Rectal Neoplasms/surgery*
		                        			;
		                        		
		                        			Retrospective Studies
		                        			;
		                        		
		                        			Syndrome
		                        			;
		                        		
		                        			Treatment Outcome
		                        			;
		                        		
		                        			Urinary Incontinence
		                        			
		                        		
		                        	
5.Relationship between prostate apex depth and early recovery of urinary continence after laparoscopic radical prostatectomy.
Fan ZHANG ; Xiao Juan HUANG ; Bin YANG ; Ye YAN ; Cheng LIU ; Shu Dong ZHANG ; Yi HUANG ; Lu Lin MA
Journal of Peking University(Health Sciences) 2021;53(4):692-696
		                        		
		                        			OBJECTIVE:
		                        			To evaluate the relationship between recovery of urinary continence after laparoscopic radical prostatectomy (LRP) and preoperative prostate apex depth (PAD) on magnetic resonance imaging (MRI).
		                        		
		                        			METHODS:
		                        			We retrospectively analyzed 184 patients with pathologic confirmed prostate carcinoma who underwent LRP in Department of Urology, Peking University Third Hospital. All the patients received MRI examination before surgery. Membranous urethral length (MUL) was defined as the distance from the apex of prostate to the level of the urethra at penile bulb on the coronal image. PAD was defined as the distance from the apex of prostate to the suprapubic ridge line on sagittal MRI. PAD ratio (PADR) was defined as PAD/pubic height. All the patients received extraperitoneal LRP. The patients' reporting freedom from using safety pad (0 pad/d) were defined as urinary continence. Univariate and multivariate regression analyses were used to identify independent predictors of early continence recovery after LRP. Kaplan-Meier analyses and log-rank test were used to compare time to continence recovery between the groups.
		                        		
		                        			RESULTS:
		                        			For all the 184 patients, the average age was (69.0±7.7) years, the ave-rage mass index(BMI) was (25.07±3.29) kg/m2, and the pre-biopsy PSA was (16.80±21.99) g/L. For all the patients who underwent MRI preoperatively, the mean PV was (39.35±25.25) mL and the mean MUL was (14.0±3.7) mm. The mean PAD was (24.52±4.97) mm and the mean PADR was 0.70±0.14. The continence rate for all the patients after LRP was 62.0% and 96.2% in three months and one year. The patients achieving early continence recovery had significant smaller PV (P=0.049), longer MUL (P < 0.001) and higher PADR (P=0.005). Multivariate analysis revealed MUL (P < 0.001) and PADR (P=0.032) were predictors of continence recovery after LRP. Kaplan-Meier analyses and Log-rank test revealed that MUL (≥14 mm vs. < 14 mm, P < 0.001) and PADR (≥0.70 vs. < 0.70, P < 0.001), PV(< 50 mL vs. ≥50 mL, P=0.001) were all significantly associated with continence recovery.
		                        		
		                        			CONCLUSION
		                        			MUL and PADR are independent predictors of early continence recovery after LRP. MUL, PADR and PV are significantly associated with recovery of urinary continence.
		                        		
		                        		
		                        		
		                        			Aged
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Laparoscopy
		                        			;
		                        		
		                        			Male
		                        			;
		                        		
		                        			Middle Aged
		                        			;
		                        		
		                        			Prostate/surgery*
		                        			;
		                        		
		                        			Prostatectomy
		                        			;
		                        		
		                        			Prostatic Neoplasms/surgery*
		                        			;
		                        		
		                        			Recovery of Function
		                        			;
		                        		
		                        			Retrospective Studies
		                        			;
		                        		
		                        			Urinary Incontinence/etiology*
		                        			
		                        		
		                        	
6.Evaluating continence recovery time after robot-assisted radical prostatectomy.
Han HAO ; Yue LIU ; Yu Ke CHEN ; Long Mei SI ; Meng ZHANG ; Yu FAN ; Zhong Yuan ZHANG ; Qi TANG ; Lei ZHANG ; Shi Liang WU ; Yi SONG ; Jian LIN ; Zheng ZHAO ; Cheng SHEN ; Wei YU ; Wen Ke HAN
Journal of Peking University(Health Sciences) 2021;53(4):697-703
		                        		
		                        			OBJECTIVE:
		                        			To evaluate urinary continence recovery time and risk factors of urinary continence recovery after robot-assisted laparoscopic radical prostatectomy (RARP).
		                        		
		                        			METHODS:
		                        			From January 2019 to January 2021, a consecutive series of patients with localized prostate cancer (cT1-T3, cN0, cM0) were prospectively collected. RARP with total anatomical reconstruction was performed in all the cases by an experienced surgeon. Lymph node dissection was performed if the patient was in high-risk group according to the D'Amico risk classification. The primary endpoint was urinary continence recovery time after catheter removal. Postoperative and pathological variables were analyzed. Continence was rigo-rously analyzed 48 hours, 1 week, 4 weeks, 12 weeks, and 24 weeks after catheter removal. Continence was evaluated by recording diaper pads used per day, and all the patients were instructed to perform the 24-hour pad weight test until full recovery of urinary continence. The patient was defined as continent if no more than one safety pad were needed per day, or no more than 20-gram urine leakage on the 24-hour pad weight test. Time from catheter removal to full recovery of urinary continence was recorded, and risk factors influencing continence recovery time evaluated.
		                        		
		                        			RESULTS:
		                        			In total, 166 patients were analyzed. The mean age of the enrolled patients was 66.2 years, and the median prostate specific antigen (PSA) was 8.51 μg/L. A total of 59 patients (35.5%) had bilateral lymphatic dissection, and 28 (16.9%) underwent neurovascular bundle (NVB) preservation surgery. Postoperative pathology results showed that stage pT1 in 1 case (0.6%), stage pT2 in 77 cases (46.4%), stage pT3 in 86 cases (51.8%), and positive margins in 28 patients (16.9%). Among patients who underwent lymph node dissection, lymph node metastasis was found in 7 cases (11.9%). Median continence recovery time was one week. The number of the continent patients at the end of 48 hours, 1 week, 4 weeks, 12 weeks, and 24 weeks were 65 (39.2%), 32 (19.3%), 34 (20.5%), 24 (14.5%), and 9 (5.4%). Two patients remained incontinent 24 weeks after catheter removal. The continence rates after catheter removal at the end of 48 hours, 1 week, 4 weeks, 12 weeks, and 24 weeks were 39.2%, 58.4%, 78.9%, 93.4%, and 98.8%, respectively. Univariate COX analysis revealed that diabetes appeared to influence continence recovery time (OR=1.589, 95%CI: 1.025-2.462, P=0.038). At the end of 48 hours, 4 weeks, 12 weeks, and 24 weeks after catheter removal, the mean OABSS score of the continent group was significantly lower than that of the incontinent group.
		                        		
		                        			CONCLUSION
		                        			RARP showed promising results in the recovery of urinary continence. Diabetes was a risk factor influencing continence recovery time. Bladder overactive symptoms play an important role in the recovery of continence after RARP.
		                        		
		                        		
		                        		
		                        			Aged
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Male
		                        			;
		                        		
		                        			Prostatectomy
		                        			;
		                        		
		                        			Prostatic Neoplasms/surgery*
		                        			;
		                        		
		                        			Recovery of Function
		                        			;
		                        		
		                        			Robotics
		                        			;
		                        		
		                        			Treatment Outcome
		                        			;
		                        		
		                        			Urinary Incontinence/etiology*
		                        			
		                        		
		                        	
7.Future considerations in prosthetic urology.
Asian Journal of Andrology 2020;22(1):70-75
		                        		
		                        			
		                        			Since their popularization, genitourinary prosthetics have remained a gold-standard therapy for the treatment of erectile dysfunction and stress urinary incontinence and in cases of testicular loss or dysfunction. They have also represented an area of significant innovation, which has contributed to excellent long-term outcomes. Given this history, the objective of the current review was to provide a 5-10-year outlook on anticipated trends and developments in the field of genitourinary prosthetics. To accomplish this objective, a PubMed and patent search was performed of topics relating to penile and testicular prostheses and urinary sphincters. In regard to penile prostheses, findings demonstrated several new concepts including temperature-sensitive alloys, automated pumps, devices designed specifically for neophalluses, and improved malleable designs. With artificial urinary sphincters, new concepts include the ability to add or remove fluid from an existing system, two-piece systems, and new mechanisms to occlude the urethra. For testicular prosthetics, future implementations may not only better replicate the feel of a biological testicle but also add endocrinological functions. Beyond device innovation, the future of prosthetics is also one of expanding geographic boundaries, which necessitates variable cost modeling and regulatory considerations. Surgical trends are also changing, with a greater emphasis on nonnarcotic, postoperative pain control, outpatient surgeries, and adjunctive techniques to lengthen the penis and address concomitant stress incontinence, among others. Concomitant with device and surgical changes, future considerations also include a greater need for education and training, particularly given the rapid expansion of sexual medicine into developing nations.
		                        		
		                        		
		                        		
		                        			Erectile Dysfunction/surgery*
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Male
		                        			;
		                        		
		                        			Penile Implantation
		                        			;
		                        		
		                        			Penile Prosthesis/trends*
		                        			;
		                        		
		                        			Prostheses and Implants/trends*
		                        			;
		                        		
		                        			Prosthesis Design/trends*
		                        			;
		                        		
		                        			Prosthesis Implantation/trends*
		                        			;
		                        		
		                        			Testicular Diseases/surgery*
		                        			;
		                        		
		                        			Urinary Incontinence, Stress/surgery*
		                        			;
		                        		
		                        			Urinary Sphincter, Artificial/trends*
		                        			;
		                        		
		                        			Urologic Surgical Procedures, Male/trends*
		                        			
		                        		
		                        	
8.Fundamentals of prosthetic urology.
Asian Journal of Andrology 2020;22(1):20-27
		                        		
		                        			
		                        			The field of prosthetic urology demonstrates the striking impact that simple devices can have on quality of life. Penile prosthesis and artificial urinary sphincter implantation are the cornerstone procedures on which this specialty focuses. Modern research largely concentrates on decreasing the rates of complication and infection, as the current devices offer superior rates of satisfaction when revision is not necessary. These techniques are also able to salvage sexual function and continence in more difficult patient populations including female-to-male transgender individuals, those with ischemic priapism, and those with erectile dysfunction and incontinence secondary to prostatectomy. This review summarizes modern techniques, outcomes, and complications in the field of prosthetic urology.
		                        		
		                        		
		                        		
		                        			Erectile Dysfunction/surgery*
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Male
		                        			;
		                        		
		                        			Penile Implantation/methods*
		                        			;
		                        		
		                        			Penile Prosthesis
		                        			;
		                        		
		                        			Postoperative Complications/epidemiology*
		                        			;
		                        		
		                        			Prostatectomy/adverse effects*
		                        			;
		                        		
		                        			Prosthesis Failure
		                        			;
		                        		
		                        			Prosthesis Implantation/methods*
		                        			;
		                        		
		                        			Prosthesis-Related Infections/epidemiology*
		                        			;
		                        		
		                        			Surgical Wound Infection/epidemiology*
		                        			;
		                        		
		                        			Urethra/injuries*
		                        			;
		                        		
		                        			Urinary Incontinence, Stress/surgery*
		                        			;
		                        		
		                        			Urinary Retention/epidemiology*
		                        			;
		                        		
		                        			Urinary Sphincter, Artificial
		                        			;
		                        		
		                        			Urology
		                        			
		                        		
		                        	
9.Management of urethral atrophy after implantation of artificial urinary sphincter: what are the weaknesses?
Nathaniel H HEAH ; Ronny B W TAN
Asian Journal of Andrology 2020;22(1):60-63
		                        		
		                        			
		                        			The use of artificial urinary sphincter (AUS) for the treatment of stress urinary incontinence has become more prevalent, especially in the "prostate-specific antigen (PSA)-era", when more patients are treated for localized prostate cancer. The first widely accepted device was the AMS 800, but since then, other devices have also entered the market. While efficacy has increased with improvements in technology and technique, and patient satisfaction is high, AUS implantation still has inherent risks and complications of any implant surgery, in addition to the unique challenges of urethral complications that may be associated with the cuff. Furthermore, the unique nature of the AUS, with a control pump, reservoir, balloon cuff, and connecting tubing, means that mechanical complications can also arise from these individual parts. This article aims to present and summarize the current literature on the management of complications of AUS, especially urethral atrophy. We conducted a literature search on PubMed from January 1990 to December 2018 on AUS complications and their management. We review the various potential complications and their management. AUS complications are either mechanical or nonmechanical complications. Mechanical complications usually involve malfunction of the AUS. Nonmechanical complications include infection, urethral atrophy, cuff erosion, and stricture. Challenges exist especially in the management of urethral atrophy, with both tandem implants, transcorporal cuffs, and cuff downsizing all postulated as potential remedies. Although complications from AUS implants are not common, knowledge of the management of these issues are crucial to ensure care for patients with these implants. Further studies are needed to further evaluate these techniques.
		                        		
		                        		
		                        		
		                        			Atrophy
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Postoperative Complications/therapy*
		                        			;
		                        		
		                        			Prosthesis Failure
		                        			;
		                        		
		                        			Prosthesis Implantation
		                        			;
		                        		
		                        			Prosthesis-Related Infections/therapy*
		                        			;
		                        		
		                        			Urethra/pathology*
		                        			;
		                        		
		                        			Urethral Diseases/therapy*
		                        			;
		                        		
		                        			Urethral Stricture/surgery*
		                        			;
		                        		
		                        			Urinary Incontinence, Stress/surgery*
		                        			;
		                        		
		                        			Urinary Sphincter, Artificial
		                        			
		                        		
		                        	
10.Artificial urinary sphincter surgery in the special populations: neurological, revision, concurrent penile prosthesis and female stress urinary incontinence groups.
Asian Journal of Andrology 2020;22(1):45-50
		                        		
		                        			
		                        			The artificial urinary sphincter (AUS) remains the standard of care in men with severe stress urinary incontinence (SUI) following prostate surgery and radiation. While the current AUS provides an effective, safe, and durable treatment option, it is not without its limitations and complications, especially with regard to its utility in some "high-risk" populations. This article provides a critical review of relevant publications pertaining to AUS surgery in specific high-risk groups such as men with spinal cord injury, revision cases, concurrent penile prosthesis implant, and female SUI. The discussion of each category includes a brief review of surgical challenge and a practical action-based set of recommendations. Our increased understandings of the pathophysiology of various SUI cases coupled with effective therapeutic strategies to enhance AUS surgery continue to improve clinical outcomes of many patients with SUI.
		                        		
		                        		
		                        		
		                        			Erectile Dysfunction/surgery*
		                        			;
		                        		
		                        			Female
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Male
		                        			;
		                        		
		                        			Penile Implantation
		                        			;
		                        		
		                        			Prosthesis Implantation/methods*
		                        			;
		                        		
		                        			Reoperation
		                        			;
		                        		
		                        			Spinal Cord Injuries/complications*
		                        			;
		                        		
		                        			Urinary Bladder, Neurogenic/surgery*
		                        			;
		                        		
		                        			Urinary Incontinence, Stress/surgery*
		                        			;
		                        		
		                        			Urinary Sphincter, Artificial
		                        			
		                        		
		                        	
            
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