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Liao Y, Wang M, Liu Y, Zhou W, Liu J, Yu H. Magnetically controlled artificial urinary sphincter: An overview from existing devices to future developments. Artif Organs 2023. [PMID: 37114754 DOI: 10.1111/aor.14535] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2023] [Revised: 04/04/2023] [Accepted: 04/06/2023] [Indexed: 04/29/2023]
Abstract
BACKGROUND Urinary incontinence is a common clinical problem in the world today. Artificial urinary sphincter is a good treatment approach for severe urinary incontinence, which is designed to mimic the action of the human urinary sphincter and assist patients to regain urinary function. METHODS There are many control methods based on artificial urinary sphincter, such as hydraulic control, electromechanical control, magnetic control, and shape memory alloy control. In this paper, the literature was first searched and documented based on PRISMA search strategy for selected specific subject terms. Then, a comparison of artificial urethral sphincters based on different control methods was conducted, and the research progress of magnetically controlled artificial urethral sphincters was reviewed, and their advantages and disadvantages were summarized. Finally, the design factors for the clinical application of magnetically controlled artificial urinary sphincter are discussed. RESULTS As magnetic control allows for non-contact force transfer and does not generate heat, it is proposed that magnetic control may be one of the more promising control methods. The design of future magnetically controlled artificial urinary sphincters will need a variety of considerations, including the structural design of the device, manufacturing materials, manufacturing costs, and convenience. In addition, validation of the safety and effectiveness of the device and device management are equally important. CONCLUSIONS The design of an ideal magnetically controlled artificial urinary sphincter is of great importance to enhance patient treatment outcomes. However, there are still great challenges to be faced for the clinical application of such devices.
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Affiliation(s)
- Yucheng Liao
- Institute of Rehabilitation Engineering and Technology, School of Intelligent Rehabilitation Engineering, University of Shanghai for Science and Technology, Shanghai, China
- Shanghai Engineering Research Center of Assistive Devices, Shanghai, China
| | - Minghui Wang
- Institute of Rehabilitation Engineering and Technology, School of Intelligent Rehabilitation Engineering, University of Shanghai for Science and Technology, Shanghai, China
- Shanghai Engineering Research Center of Assistive Devices, Shanghai, China
| | - Yunlong Liu
- Institute of Rehabilitation Engineering and Technology, School of Intelligent Rehabilitation Engineering, University of Shanghai for Science and Technology, Shanghai, China
- Shanghai Engineering Research Center of Assistive Devices, Shanghai, China
| | - Wei Zhou
- Institute of Rehabilitation Engineering and Technology, School of Intelligent Rehabilitation Engineering, University of Shanghai for Science and Technology, Shanghai, China
- Shanghai Engineering Research Center of Assistive Devices, Shanghai, China
| | - Ji Liu
- Institute of Rehabilitation Engineering and Technology, School of Intelligent Rehabilitation Engineering, University of Shanghai for Science and Technology, Shanghai, China
- Shanghai Engineering Research Center of Assistive Devices, Shanghai, China
| | - Hongliu Yu
- Institute of Rehabilitation Engineering and Technology, School of Intelligent Rehabilitation Engineering, University of Shanghai for Science and Technology, Shanghai, China
- Shanghai Engineering Research Center of Assistive Devices, Shanghai, China
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Toniolo I, Mascolini MV, Carniel EL, Fontanella CG. Artificial sphincters: An overview from existing devices to novel technologies. Artif Organs 2023; 47:617-639. [PMID: 36374175 DOI: 10.1111/aor.14434] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 09/21/2022] [Accepted: 10/11/2022] [Indexed: 11/16/2022]
Abstract
Artificial sphincters (ASs) are used to replace the function of the biological sphincters in case of severe urinary and fecal incontinence (UI and FI), and gastroesophageal reflux disease (GERD). The design of ASs is established on different mechanisms, e.g., magnetic forces or hydraulic pressure, with the final goal to achieve a implantable and durable AS. In clinical practice, the implantation of in-commerce AS is considered a reasonable solution, despite the sub-optimal clinical outcomes. The failure of these surgeries is due to the malfunction of the devices (between 46 and 51%) or the side effects on the biological tissues (more than 38%), such as infection and atrophy. Concentrating on this latter characteristic, particular attention has been given to the interaction between the biological tissues and AS, pointing out the closing mechanism around the duct and the effect on the tissues. To analyze this aspect, an overview of existing commercial/ready-on-market ASs for GERD, UI, and FI, together with the clinical outcomes available from the in-commerce AS, is given. Moreover, this invited review discusses ongoing developments and future research pathways for creating novel ASs. The application of engineering principles and design concepts to medicine enhances the quality of healthcare and improves patient outcomes. In this context, computational methods represent an innovative solution in the design of ASs, proving data on the occlusive force and pressure necessary to guarantee occlusion and avoid tissue damage, considering the coupling between different device sizes and individual variability.
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Affiliation(s)
- Ilaria Toniolo
- Department of Industrial Engineering, University of Padova, Padova, Italy
- Centre for Mechanics of Biological Materials, University of Padova, Padova, Italy
| | - Maria Vittoria Mascolini
- Department of Industrial Engineering, University of Padova, Padova, Italy
- Centre for Mechanics of Biological Materials, University of Padova, Padova, Italy
| | - Emanuele Luigi Carniel
- Department of Industrial Engineering, University of Padova, Padova, Italy
- Centre for Mechanics of Biological Materials, University of Padova, Padova, Italy
| | - Chiara Giulia Fontanella
- Department of Industrial Engineering, University of Padova, Padova, Italy
- Centre for Mechanics of Biological Materials, University of Padova, Padova, Italy
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Comparison of Different Invasive Devices for the Treatment of Urinary Incontinence after Radical Prostatectomy. Adv Urol 2022; 2022:8736249. [PMID: 35774194 PMCID: PMC9239822 DOI: 10.1155/2022/8736249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2022] [Accepted: 06/06/2022] [Indexed: 11/28/2022] Open
Abstract
Purpose To compare different forms of invasive treatments for postradical prostatectomy (RP) urinary incontinence (UI) in terms of quantitative and qualitative parameters and continence recovery rate. Methods We distinguished five categories of treatment: A = bulking agents, B = fixed slings, C = adjustable slings, D = circumferential compressor devices (artificial sphincter), and E = noncircumferential compressor devices (ProACT). A literature search was performed following the PRISMA guidelines. We performed a cumulative meta-analysis to explore the trend in the effect sizes across groups at postoperative follow-up. We compared the available treatment arms using standardized mean difference (SMD) and event rate (ER) for questionnaire results, number of pads/day, and percentage of pad-free patients. Evidence synthesis. 36 clinical trials were selected. At baseline, in the different populations, mean number of pad-day varied from 1.1 to 8.8, 24-hour pad weight varied extremely from 17.3 g to 747.0 g, and mean ICIQ-UI-SF questionnaire score varied from 4.8 to 18.6. Considering a random effect model among eligible studies, ER of continence recovery was 0.33 (95% CI −0.12–0.78), 0.63 (95% CI 0.55–0.71), 0.65 (95% CI 0.58–0.72), 0.50 (95% CI 0.34–0.66), and 0.53 (95%CI 0.36–0.70), respectively, in groups A, B, C, D, and E (I2 85.87%; Q 249.82—P > 0.01) (test of group differences P=0.22). Conclusion In our analysis, the use of adjustable and fixed slings is associated with the highest whereas the use of bulking agents is associated with the lowest recovery rate of continence after treatment. Results are conditioned by an elevated rate of heterogeneity in part explained with a high variability of consistence in urinary leakage at baseline among populations.
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Gacci M, Sakalis VI, Karavitakis M, Cornu JN, Gratzke C, Herrmann TRW, Kyriazis I, Malde S, Mamoulakis C, Rieken M, Schouten N, Smith EJ, Speakman MJ, Tikkinen KAO, Gravas S. European Association of Urology Guidelines on Male Urinary Incontinence. Eur Urol 2022; 82:387-398. [PMID: 35697561 DOI: 10.1016/j.eururo.2022.05.012] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2022] [Accepted: 05/17/2022] [Indexed: 11/04/2022]
Abstract
CONTEXT Urinary incontinence (UI) is a common condition in elderly men causing a severe worsening of quality of life, and a significant cost for both patients and health systems. OBJECTIVE To report a practical, evidence-based, guideline on definitions, pathophysiology, diagnostic workup, and treatment options for men with different forms of UI. EVIDENCE ACQUISITION A comprehensive literature search, limited to studies representing high levels of evidence and published in the English language, was performed. Databases searched included Medline, EMBASE, and the Cochrane Libraries. A level of evidence and a grade of recommendation were assigned. EVIDENCE SYNTHESIS UI can be classified into stress urinary incontinence (SUI), urge urinary incontinence (UUI), and mixed urinary incontinence. A detailed description of the pathophysiology and diagnostic workup has been reported. Simple clinical interventions, behavioural and physical modifications, and pharmacological treatments comprise the initial management for all kinds of UI. Surgery for SUI includes bulking agents, male sling, and compression devices. Surgery for UUI includes bladder wall injection of botulinum toxin A, sacral nerve stimulation, and cystoplasty/urinary diversion. CONCLUSIONS This 2022 European Association of Urology guideline summary provides updated information on definition, pathophysiology, diagnosis, and treatment of male UI. PATIENT SUMMARY Male urinary incontinence comprises a broad subject area, much of which has been covered for the first time in the literature in a single manuscript. The European Association of Urology Non-neurogenic Male Lower Urinary Tract Symptoms Guideline Panel has released this new guidance, with the aim to provide updated information for urologists to be able to follow diagnostic and therapeutic indications for optimising patient care.
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Affiliation(s)
- Mauro Gacci
- Unit of Urological Robotic Surgery and Renal Transplantation, University of Florence, Careggi Hospital, Florence, Italy; Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy.
| | - Vasileios I Sakalis
- Department of Urology, Agios Pavlos General Hospital of Thessaloniki, Thessaloniki, Greece
| | - Markos Karavitakis
- Department of Urology, University General Hospital of Heraklion, University of Crete Medical School, Heraklion, Crete, Greece
| | - Jean-Nicolas Cornu
- Department of Urology, CHU Hôpitaux de Rouen - Hôpital Charles Nicolle, Rouen, France
| | - Christian Gratzke
- Department of Urology, University Hospital Freiburg, Freiburg, Germany
| | | | - Iason Kyriazis
- Department of Urology, General University Hospital of Patras, Patras, Greece
| | - Sachin Malde
- Department of Urology, Guy's and St Thomas' NHS Foundation Trust, London, UK
| | - Charalampos Mamoulakis
- Department of Urology, University General Hospital of Heraklion, University of Crete Medical School, Heraklion, Crete, Greece
| | | | - Natasha Schouten
- European Association of Urology Guidelines Office, Arnhem, The Netherlands
| | - Emma J Smith
- European Association of Urology Guidelines Office, Arnhem, The Netherlands
| | - Mark J Speakman
- Department of Urology, Taunton & Somerset Hospital, Taunton, UK
| | - Kari A O Tikkinen
- Department of Urology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland; Department of Surgery, South Karelia Central Hospital, Lappeenranta, Finland
| | - Stavros Gravas
- Department of Urology, Medical School, University of Cyprus, Nicosia, Cyprus
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Campillo-Cañete MN, González-Tamajón RM, Berlango-Jiménez J, Crespo-Montero R. Incontinencia urinaria: causas y cuidados de enfermería. Una revisión bibliográfica. ENFERMERÍA NEFROLÓGICA 2021. [DOI: 10.37551/s2254-28842021003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
frecuencia en el sexo femenino y conforme aumenta la edad, provocando una disminución de la calidad de vida.Objetivo: Sintetizar la evidencia científica relacionada con las causas, tratamiento y cuidados de enfermería en la incontinencia urinaria.Metodología: Se ha realizado una revisión bibliográfica sistematizada en las bases de datos Proquest, Pubmed, Google Académico y Scielo, utilizando como términos "incontinencia urinaria" (urinary incontinence), "factoresde riesgo" (risk factor), "intervenciones de enfermería"(nursing intervention) y "procedimientos terapeúticos"(therapeutics), con una limitación de 5 años en la búsqueda. Se incluyeron estudios experimentales y de revisión.Resultados: Se incluyeron 26 artículos: 5 estudios experimentales,18 revisiones sistemáticas y 3 metaanálisis.La incontinencia urinaria está relacionada con la edad, sexo y factores de riesgo, dependiendo del tipo e intensidad de la incontinencia, y características propias del paciente. El abordaje es interdisciplinar, con técnicasmenos invasivas al principio, entre las que destacan la terapia conductual y los ejercicios del suelo pélvico; necesitándose cirugía en algunos casos, según las circunstanciasindividuales de los pacientes y/o la no existenciade mejoría con las técnicas menos invasivas.Conclusiones: La incontinencia urinaria se encuentra estrechamente relacionada con la edad y el sexo; sin embargo, la existencia de factores de riesgo y algunas causas pueden contribuir a aumentar las probabilidadesde su establecimiento. La labor enfermera resulta prometedora en el establecimiento de una detección y actuación precoz ante el problema, teniendo como base siempre para el tratamiento el menor grado de invasión.
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Affiliation(s)
| | | | - José Berlango-Jiménez
- Departamento de Enfermería. Facultad de Medicina y Enfermería. Universidad de Córdoba. Córdoba. Servicio de Nefrología. Hospital Universitario Reina Sofía de Córdoba
| | - Rodolfo Crespo-Montero
- Departamento de Enfermería. Facultad de Medicina y Enfermería. Universidad de Córdoba. Servicio de Nefrología. Hospital Universitario Reina Sofía de Córdoba. Instituto Maimónides de Investigación Biomédica de Córdoba. Córdoba. España
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Abstract
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.
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Affiliation(s)
- Culley C Carson
- Department of Urology, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
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