1.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*
2.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
3.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
4.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
5.Penile prosthesis implant in the special populations: diabetics, neurogenic conditions, fibrotic cases, concurrent urinary continence surgery, and salvage implants.
Asian Journal of Andrology 2020;22(1):39-44
Penile prosthesis implant (PPI) remains an effective and safe treatment option for men with erectile dysfunction (ED). However, PPI surgery can be associated with a higher risk of complications in certain populations. This article provides a critical review of relevant publications pertaining to PPI in men with diabetes, significant corporal fibrosis, spinal cord injury, concurrent continence surgery, and complex salvage cases. The discussion of each category of special populations includes a brief review of the surgical challenges and a practical action-based set of recommendations. While specific patient populations posed considerable challenges in PPI surgery, strict pre- and postoperative management coupled with safe surgical practice is a prerequisite to achieving excellent clinical outcomes and high patient satisfaction rate.
Diabetes Complications
;
Diabetes Mellitus
;
Erectile Dysfunction/surgery*
;
Humans
;
Male
;
Penile Implantation
;
Penile Induration/surgery*
;
Penile Prosthesis
;
Priapism/surgery*
;
Prosthesis-Related Infections/prevention & control*
;
Salvage Therapy
;
Spinal Cord Injuries/complications*
;
Suburethral Slings
;
Surgical Wound Infection/prevention & control*
;
Urinary Incontinence/surgery*
;
Urinary Sphincter, Artificial
6.Artificial urinary sphincter: current status and future directions.
Asian Journal of Andrology 2020;22(2):154-157
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.
Humans
;
Prostatectomy/adverse effects*
;
Prosthesis Design
;
Urinary Incontinence, Urge/surgery*
;
Urinary Sphincter, Artificial
7.Artificial Urinary Sphincter Cuff Size Predicts Outcome in Male Patients Treated for Stress Incontinence: Results of a Large Central European Multicenter Cohort Study
Fabian QUEISSERT ; Tanja HUESCH ; Alexander KRETSCHMER ; Ralf ANDING ; Martin KUROSCH ; Ruth KIRSCHNER-HERMANNS ; Tobias POTTEK ; Roberto OLIANAS ; Alexander FRIEDL ; Jesco PFITZENMAIER ; Carsten M NAUMANN ; Carola WOTZKA ; Joanne NYARANGI-DIX ; Torben HOFFMANN ; Edwin HERRMANN ; Alice OBAJE ; Achim ROSE ; Roland HOMBERG ; Rudi ABDUNNUR ; Hagen LOERTZER ; Ricarda M BAUER ; Axel HAFERKAMP ; Andres J SCHRADER ;
International Neurourology Journal 2019;23(3):219-225
PURPOSE: The aim was to study the correlation between cuff size and outcome after implantation of an AMS 800 artificial urinary sphincter. METHODS: A total of 473 male patients with an AMS 800 sphincter implanted between 2012 and 2014 were analyzed in a retrospective multicenter cohort study performed as part of the Central European Debates on Male Incontinence (DOMINO) Project. RESULTS: Single cuffs were implanted in 54.5% and double cuffs in 45.5% of the patients. The cuffs used had a median circumference of 4.5 cm. Within a median follow of 18 months, urethral erosion occurred in 12.8% of the cases and was associated significantly more often with small cuff sizes (P<0.001). Multivariate analysis showed that, apart from cuff size (P=0.03), prior irradiation (P<0.001) and the penoscrotal approach (P=0.036) were associated with an increased erosion rate. Continence rate tended to be highest with median cuff sizes (4–5.5 cm). CONCLUSIONS: Apart from irradiation and the penoscrotal approach, small cuff size is a risk factor for urethral erosion. Results are best with cuff sizes of 4.5–5.5 cm.
Cohort Studies
;
Humans
;
Male
;
Multivariate Analysis
;
Retrospective Studies
;
Risk Factors
;
Urinary Sphincter, Artificial
8.Sling Surgery for Male Urinary Incontinence Including Post Prostatectomy Incontinence: A Challenge to the Urologist
Kwang Jin KO ; Sung Jin KIM ; Sung Tae CHO
International Neurourology Journal 2019;23(3):185-194
The management of postprostatectomy urinary incontinence (PPI) is still challenging for urologists. In recent decades, various kinds of male sling system have been developed and introduced; however, they have not yet shown as good a result as that of artificial urinary sphincter (AUS). However, a male sling is still in an important position because patients have a high demand for sling implantation, and it can allow the avoidance of the use of mechanical devices like AUS. Recently, the male sling has been widely used in mild-to-moderate PPI patients; however, there are no studies that compare individual devices. Thus, it is hard to directly compare the success rate of operation, and it is impossible to judge which sling system is more excellent. It is expected that many sling options will be available in addition to AUS in the near future with the technological development of various male slings and the accumulation of long-term surgical outcomes. In that in patients with PPI, sling implantation is an option that must be explained rather than an option that need not be explained to them, this review would share the latest outcomes and complications.
Humans
;
Male
;
Prostatectomy
;
Suburethral Slings
;
Urinary Incontinence
;
Urinary Sphincter, Artificial
9.Artificial Urinary Sphincter for Postradical Prostatectomy Urinary Incontinence — Is It the Best Option?
International Neurourology Journal 2019;23(4):265-276
Male stress urinary incontinence (SUI) can undoubtedly reduce quality of life and promote personal distress and psychosocial alienation. The frequency of postprostatectomy urinary incontinence (PPI) counts on the characterization of urinary incontinence and the periods of patient follow-up. Operational therapeutics, for instance, urethral male slings and artificial urinary sphincters, are well-chosen as adequate and secure surgeries for male SUI in men with continual PPI when conservative treatment is ineffective. Over the former 2 decades, surgery has progressed regarding both operative approach and sling architecture. However, there are no guidelines about when surgery should be carried out and which is the most appropriate surgical option. In this review, we summarize recent advances in implantable devices for PPI and also discuss traditional surgical care. When we are planning the male PPI surgery, careful preoperative work-up should be performed and surgical method should be chosen according to the severity of the disease. Male sling is preferred in mild and moderate symptomatic patients with normal detrusor pressure and it is recommended to select traditional artificial urinary sphincter device in those with severe symptoms. It is expected that effective devices without adverse events will be developed with technical advances in near future.
Emigrants and Immigrants
;
Follow-Up Studies
;
Humans
;
Male
;
Methods
;
Prostatectomy
;
Quality of Life
;
Suburethral Slings
;
Urinary Incontinence
;
Urinary Incontinence, Stress
;
Urinary Sphincter, Artificial
10.Coronary artery spasm as the probable cause of cardiac arrest immediately after the induction of spinal anesthesia: A case report.
Jung A KIM ; Chan Jong CHUNG ; Kyoung Sub YOON ; Jeong In HONG ; Seung Cheol LEE ; Sang Yoong PARK ; So Ron CHOI ; Dong Hyun LEE ; Jin Heon JEONG
Anesthesia and Pain Medicine 2018;13(2):180-183
A 72-year-old man underwent spinal anesthesia for artificial urinary sphincter placement for urinary incontinence. After the block level was confirmed below T6, 1 g of cefotetan, which had not shown any reaction on skin test, was administered as a prophylactic antibiotic. The patient began complaining of chest discomfort and dyspnea shortly after injection. ST elevation appeared on the electrocardiogram and the patient's pulse could not be palpated. Accordingly, cardiopulmonary resuscitation was performed for 5 minutes; the patient recovered spontaneous circulation. The patient was diagnosed as experienced coronary artery spasm by coronary angiography with spasm test. Because coronary artery spasm can also develop in patients with no history of coronary artery disease and under spinal anesthesia, careful observation, suspicion of coronary artery spasm and prompt response to hemodynamic and electrocardiogram changes are necessary.
Aged
;
Anesthesia, Conduction
;
Anesthesia, Spinal*
;
Cardiopulmonary Resuscitation
;
Cefotetan
;
Coronary Angiography
;
Coronary Artery Disease
;
Coronary Vasospasm
;
Coronary Vessels*
;
Dyspnea
;
Electrocardiography
;
Heart Arrest*
;
Hemodynamics
;
Humans
;
Skin Tests
;
Spasm*
;
Thorax
;
Urinary Incontinence
;
Urinary Sphincter, Artificial

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