Catalogue Search | MBRL
Search Results Heading
Explore the vast range of titles available.
MBRLSearchResults
-
DisciplineDiscipline
-
Is Peer ReviewedIs Peer Reviewed
-
Item TypeItem Type
-
SubjectSubject
-
YearFrom:-To:
-
More FiltersMore FiltersSourceLanguage
Done
Filters
Reset
344
result(s) for
"artificial sphincter"
Sort by:
Artificial urinary sphincter: current status and future directions
by
Carson, Culley
in
Antibiotics
,
artificial sphincter; bladder sling; prostate; sphincter; urinary incontinence
,
Bladder
2020
Urge urinary incontinence (UUI) is one of the most troublesome complications of surgery of the prostate whether for malignancy or benign conditions. For many decades, there have been attempts to reduce the morbidity of this outcome with variable results. Since its development in the 1970s, the artificial urinary sphincter (AUS) has been the \"gold standard\" for treatment of the most severe cases of UUI. Other attempts including injectable bulking agents, previous sphincter designs, and slings have been developed, but largely abandoned because of poor long-term efficacy and significant complications. The AUS has had several sentinel redesigns since its first introduction to reduce erosion and infection and increase efficacy. None of these changes in the basic AUS design have occurred in the past three decades, and the AUS remains the same despite newer technology and materials that could improve its function and safety. Recently, newer compressive devices and slings to reposition the bladder neck for men with mild-to-moderate UUI have been developed with success in select patients. Similarly, the AUS has had applied antibiotic coating to all portions except the pressure-regulating balloon (PRB) to reduce infection risk. The basic AUS design, however, has not changed. With newer electronic technology, the concept of the electronic AUS or eAUS has been proposed and several possible iterations of this eAUS have been reported. While the eAUS is as yet not available, its development continues and a prototype device may be available soon. Possible design options are discussed in this review.
Journal Article
Management of urethral atrophy after implantation of artificial urinary sphincter: what are the weaknesses?
by
Heah, Nathaniel
,
Tan, Ronny
in
artificial urinary sphincter; artificial urinary sphincter complications; tandem cuffs; transcorporal cuffs; urethral atrophy
,
Care and treatment
,
Failure
2020
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.
Journal Article
Survival Without Reintervention of Second Artificial Urinary Sphincter Implants in Men: A National Healthcare Data System-Based Study in France
2026
ABSTRACT Purpose: Artificial urinary sphincter (AUS) is the gold standard treatment for severe male stress urinary incontinence (SUI). While survival outcomes after primary implantation are now well established, the prognosis following reintervention remains poorly understood. We aimed to assess long-term reintervention-free survival after a second AUS implantation and to compare outcomes between device replacement and reimplantation after removal. Materials and Methods: We performed a nationwide, population-based, retrospective cohort study including all men aged ≥18 years in France who underwent a second AUS implantation between 2006 and 2018 for SUI following prostate cancer or benign prostatic hyperplasia treatment. AUS procedures were identified through a unique device identifier. Of 5,132,311 eligible men, 8,475 received a first AUS and 1,619 a second AUS: 1,165 after device replacement and 454 after reimplantation following removal. The primary outcome was reintervention-free survival, estimated by Kaplan–Meier analysis. Secondary outcomes included replacement and removal rates. Predictors of reintervention were identified using multivariable Cox regression. Results: Median follow-up was 53 months (IQR 26–81). Reintervention-free survival after second AUS was 81% (95% CI 79–83) at 2 years, 68% (95% CI 65–71) at 5 years, and 61% (95% CI 57–64) at 10 years. Device replacement achieved significantly better survival than reimplantation after removal (p < 0.001). Notably, only 21% of patients whose first AUS was removed underwent reimplantation. Conclusions: Second AUS implantation provides durable long-term outcomes, approaching those of primary implants. The indication for reintervention critically influences prognosis, with replacement outperforming reimplantation after removal. The low reimplantation rate after AUS removal provides a clinically relevant piece of information to counsel patients requiring device removal.
Journal Article
The role of transcorporal cuff placement in high-risk and ultra-high-risk patients: are they actually helpful?
2023
PurposeTo assess the incidence of artificial urinary sphincter (AUS) explant in high-risk patients and to evaluate the relationship between transcorporal cuff (TCC) placement and explant risk in this population.MethodsWe retrospectively reviewed all AUS insertions performed on high-risk patients by a single surgeon from 2010 to 2020. “High-risk” was defined as having ≥ 1 urethral risk factor: pelvic radiation, urethroplasty, recalcitrant urethral/bladder neck stenosis, urethral stenting, or previous AUS erosion/infection. Patients with ≥ 2 factors were “ultra-high-risk.” Time-to-event analyses were used to assess all-cause-, infection/erosion-related-, and mechanical failure-related explant-free survival. Subgroup analyses were performed for patients with a history of radiation and urethral dissection.ResultsThe final cohort included 68 men, mean age of 67 years (SD 11), and 77 AUS cuffs. Mean follow-up was 32 months (IQR 6–50). 29% of cuffs (n = 22) were transcorporal. 32 cuffs (42%) were explanted. All-cause explant-free survival was 64% at 1 year and 52% at 2 years. Classification as “ultra-high-risk” was not associated with explant risk (all p-values > 0.05). TCC placement was associated with an increased risk of explant for infection/erosion across all patients (HR 2.74, p = 0.03) and in radiated patients (n = 50; HR 4.1, p = 0.04), but not in patients with prior urethral dissection (n = 52; HR 1.98, p = 0.21).ConclusionHigh-risk patients have a high rate of AUS explant and TCC placement may not be protective in this population. TCC placement was associated with an increased risk of infection/erosion in radiated patients, but not in those with a history of open urethral surgery.
Journal Article
Insufficient utilization of care in male incontinence surgery: health care reality in Germany from 2006 to 2020 and a systematic review of the international literature
2023
PurposeData suggest that the utilization of care in male incontinence surgery (MIS) is insufficient. The aim of this study was to analyse the utilization of care in MIS from 2006 to 2020 in Germany, relate this use to the number of radical prostatectomies (RP) and provide a systematic review of the international literature.MethodsWe analysed OPS codes using nationwide German billing data and hospitals’ quality reports from 2006 to 2020. A systematic review was performed according to the Preferred Reporting Items for Systematic Review and Meta-Analyses (PRISMA).ResultsMIS increased by + 68% from 2006 to 2011 (1843–3125; p = 0.009) but decreased by − 42% from 2011 to 2019 (3104–1799; p < 0.001). In 2020, only 1435 MISs were performed. In contrast, RP increased from 2014 to 2019 by 33% (20,760–27,509; p < 0.001). From 2012 to 2019, the number of artificial urinary sphincters (AUSs) changed minimally (− 12%; 1291–1136; p = 0.02). Sling/sling systems showed a decrease from 2011 to 2019 (− 68% 1632–523; p < 0.001). In 2019, 63% of patients received an AUS, 29% sling/sling systems, 6% paraurethral injections, and 2% other interventions. In 2019, few high-volume clinics [n = 27 (13%)] performed 55% of all AUS implantations, and few high-volume clinics [n = 10 (8%)] implanted 49% of retropubic slings.ConclusionMIS have exhibited a relevant decrease since 2011 despite the increase in RP numbers in Germany, indicating the insufficient utilization of care in MIS. The systematic review shows also an international deficit in the utilization of care in MIS.
Journal Article
Outcomes of laparoscopic artificial urinary sphincter in women with stress urinary incontinence: mid-term evaluation
2021
PurposeAlthough artificial urinary sphincter (AUS) has become an established treatment for moderate to severe stress urinary incontinence (SUI), implantation can be challenging.This study aimed to review the outcomes of laparoscopic AUS (LAUS) implantation and revision in women presenting with SUI.MethodsWe reviewed the files of female patients presenting with moderate to severe SUI treated with LAUS implantation from October 2007 to July 2017. Surgeries were performed by one surgeon experienced in open AUS implantation and starting LAUS implantation. The primary endpoint was postoperative urinary continence, which was divided into three categories: complete continence, improved continence, and unchanged incontinence. The secondary outcomes were complications, explantation-free and revision-free time.ResultsA total of 49 women (mean age 64 years, range 40–80) had LAUS implantation. Among the 42 patients (85.7%) with an AUS in place at the last follow-up, 25 (59.5%) were fully continent, 16 (38.1%) had improved continence, and 1 (2.4%) had unchanged incontinence. At the last follow-up, 29 (59.2%) patients had their initial AUS and 13 (26.5%) had at least one reintervention. There were 9 (18.4%) intraoperative complications and 25 (51%) postoperative complications, of which 9 (18.4%) were Clavien⩾3. After a median follow-up of 4 years, 9 (18.4%) explantations and 11 (22.5%) revisions occurred. The average period without explantation or revision was 3.7 and 3.1 years, respectively.ConclusionOur study shows that the laparoscopic approach for AUS implantation is an efficient treatment option for women with moderate to severe SUI.
Journal Article
Recent Advances in Diagnosing and Treating Post-Prostatectomy Urinary Incontinence
2024
Radical prostatectomy and radiotherapy are common first-line treatments for clinically localized prostate cancer. Despite advances in surgical technology and multidisciplinary management, post-prostatectomy urinary incontinence (PPI) remains a common clinical complication. The incidence and duration of PPI are highly heterogeneous, varying considerably between individuals. Post-prostatectomy urinary incontinence may result from a combination of factors, including patient characteristics, lower urinary tract function, and surgical procedures. Physicians often rely on detailed medical history, physical examinations, voiding diaries, pad tests, and questionnaires-based symptoms to identify critical factors and select appropriate treatment options. Post-prostatectomy urinary incontinence treatment can be divided into conservative treatment and surgical interventions, depending on the severity and type of incontinence. Pelvic floor muscle training and lifestyle interventions are commonly conservative strategies. When conservative treatment fails, surgery is frequently recommended, and the artificial urethral sphincter remains the “gold standard” surgical intervention for PPI. This review focuses on the diagnosis and treatment of PPI, based on the most recent clinical research and recommendations of guidelines, including epidemiology and risk factors, diagnostic methods, and treatment strategies, aimed at presenting a comprehensive overview of the latest advances in this field and assisting doctors in providing personalized treatment options for patients with PPI.
Journal Article
Long-term outcomes and patient satisfaction after artificial urinary sphincter implantation
by
Schillebeeckx Charlotte
,
Van der Aa Frank
,
De Ridder Dirk
in
Patient satisfaction
,
Patients
,
Radiation therapy
2022
PurposeTo evaluate long-term functional outcomes of artificial urinary sphincter implantation in men for the treatment of stress urinary incontinence.Materials and methodsPatients who underwent artificial urinary sphincter implant for non-neurogenic stress urinary incontinence between June 1989 and January 2020 were included in this single-centre retrospective series. All patients with a functional artificial urinary sphincter in situ were contacted to evaluate long-term functional outcomes using validated questionnaires.ResultsA total of 263 patients were included in this retrospective series with a mean follow-up of 61 months. Explant-free survival after 5 years was 75% with a median time to explant of 16.2 years. Revision-free implant survival was 62% after 5 years with a median revision-free implant survival rate of 10.8 years. Previous pelvic irradiation, history of stricture disease and previous artificial urinary sphincter implant were associated with decreased implant survival. Overall social continence rate after 5 years was 60%. Prior radiation therapy, anticoagulation therapy and previous anti-incontinence surgery were associated with a higher incontinence risk. On long-term evaluation of 158 patients with their artificial urinary sphincter currently in situ, 51% were socially continent and 29% reported they were totally dry. Of these patients, 92% indicated to be satisfied with their current continence status.ConclusionA significant proportion of patients undergoing artificial urinary sphincter implant incontinence needed revision or explant surgery. Long-term continence rates are acceptable but tend to decrease by time. Nonetheless, if patients can maintain a functional AUS in situ, long-term patient satisfaction rates remain high.
Journal Article
Robotic female artificial urinary sphincter implantation vs. male artificial urinary sphincter implantation for non-neurogenic stress urinary incontinence
by
Centre Hospitalier Universitaire de Rennes [CHU Rennes] = Rennes University Hospital [Pontchaillou]
,
Centre Hospitalier Universitaire de Rennes
,
Manunta, Andréa
in
Aged
,
Complications
,
Female
2024
PURPOSE: Previous studies suggested better functional outcomes and longer device survival for female artificial urinary sphincter (AUS) implantation compared to male AUS implantation. We hypothesized that the adoption of robotic approaches for female implantation might have influenced these comparisons. This study aimed to compare the outcomes of robotic female AUS and male AUS implantation for non-neurogenic stress urinary incontinence (SUI). METHODS: We retrospectively reviewed charts of male patients who had AUS implantation and female patients who underwent robotic AUS implantation for non-neurogenic SUI between 2010 and 2022 at a single center. Prior AUS implantations were exclusion criteria. The primary endpoint was continence status at 3 months, categorized as complete resolution of SUI (0 pad), improved SUI (1pad), or unchanged SUI (>1pad). RESULTS: After excluding 79 patients, 171 were included: 70 women and 101 men. Operative time was shorter in males (126.9 vs. 165.5 min; p < 0.0001). Postoperative complication rates were similar (17.3% vs. 22.9%; p = 0.38). Continence status at 3 months and last follow-up favored females. The ICIQ-SF decrease at 3 months was greater in females (-7.2 vs. -4.6; p < 0.001). The 5-year estimated explantation-free survival was similar (78.6% vs. 73.7%; p = 0.94) as was the revision-free survival (67.4% vs. 61.7%; p = 0.89). Multivariate analysis showed that female gender was associated with better continence at last follow-up (OR = 4.3; p = 0.03). CONCLUSION: Robotic female AUS implantation is associated with better functional outcomes than male AUS implantation, with similar morbidity and survival rates.
Journal Article
Urethral instrumentation in men with artificial urinary sphincter: a national survey among Brazilian urologists
by
Gomes, Cristiano Mendes
,
Anzolch, Karin Marise Jaeger
,
Fernandes, Jose Ailton
in
Adult
,
Brazil
,
Catheterization
2024
Purpose
Urethral instrumentation (UI) in patients with an artificial urinary sphincter (AUS) demands technical considerations and poses a risk of urethral erosion, leading to serious clinical and legal consequences. We conducted a national survey to evaluate the knowledge and experience of Brazilian urologists with UI in these patients.
Methods
This study used an electronic survey distributed to members of the Brazilian Society of Urology. The survey included 19 multiple-choice questions assessing sociodemographic characteristics, practice patterns, AUS training, knowledge of AUS components and functionality, experience with UI in AUS patients, and interest in further training. Urologists were classified as 'competent' in AUS manipulation if they had prior experience and confidence in performing UI.
Results
Among 536 participants (median age 47 years [39–55]), 72.8% reported involvement in urological emergencies, with 89.9% indicating inadequate AUS training during residency. Only 29.7% had occasional or regular involvement with AUS surgeries. Of the participants, 53.4% had performed UI in men with an AUS. Prior UI had been attempted by healthcare staff in 36.2% of cases. Only 46.8% reported knowledge of AUS components and 45.1% felt competent in deactivating it. Regarding urethral catheterization, 47.2% knew the safe catheter diameter, and 20.9% identified safe catheterization duration. Overall, 45.1% self-declared competence in UI, yet many gave incorrect answers on catheter size and duration. Competence strongly correlated with knowledge of AUS components, regular implant involvement, and prior experience. Most (89.3%) expressed interest in additional training for UI.
Conclusion
This study highlights significant gaps in training and knowledge among Brazilian urologists regarding UI in AUS patients. These deficiencies underscore the potential for enhanced education to improve patient outcomes and reduce AUS-associated complications in Brazil and possibly broader international contexts.
Journal Article