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Kristensen-Alvarez A, Fode M, Stroomberg HV, Nielsen KK, Arch A, Lönn LB, Taudorf M, Widecrantz SJ, Røder A. Non-inferiority, randomised, open-label clinical trial on the effectiveness of transurethral microwave thermotherapy compared to prostatic artery embolisation in reducing severe lower urinary tract symptoms in men with benign prostatic hyperplasia: study protocol for the TUMT-PAE-1 trial. Trials 2024; 25:574. [PMID: 39223593 PMCID: PMC11367896 DOI: 10.1186/s13063-024-08409-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2024] [Accepted: 08/19/2024] [Indexed: 09/04/2024] Open
Abstract
BACKGROUND One-fourth of men older than 70 years have lower urinary tract symptoms (LUTS) that impair their quality of life. Transurethral resection of the prostate (TURP) is considered the gold standard for surgical treatment of LUTS caused by benign prostatic hyperplasia (BPH) that cannot be managed conservatively or pharmacologically. However, TURP is only an option for patients fit for surgery and can result in complications. Transurethral microwave thermotherapy (TUMT) and prostatic artery embolisation (PAE) are alternative minimally invasive surgical therapies (MISTs) performed in an outpatient setting. Both treatments have shown to reduce LUTS with a similar post-procedure outcome in mean International Prostate Symptom Score (IPSS). It is however still unknown if TUMT and PAE perform equally well as they have never been directly compared in a randomised clinical trial. The objective of this clinical trial is to assess if PAE is non-inferior to TUMT in reducing LUTS secondary to BPH. METHODS This study is designed as a multicentre, non-inferiority, open-label randomised clinical trial. Patients will be randomised with a 1:1 allocation ratio between treatments. The primary outcome is the IPSS of the two arms after 6 months. The primary outcome will be evaluated using a 95% confidence interval against the predefined non-inferiority margin of + 3 points in IPSS. Secondary objectives include the comparison of patient-reported and functional outcomes at short- and long-term follow-up. We will follow the patients for 5 years to track long-term effect. Assuming a difference in mean IPSS after treatment of 1 point with an SD of 5 and a non-inferiority margin set at the threshold for a clinically non-meaningful difference of + 3 points, the calculated sample size was 100 patients per arm. To compensate for 10% dropout, the study will include 223 patients. DISCUSSION In this first randomised clinical trial to compare two MISTs, we expect non-inferiority of PAE to TUMT. The most prominent problems with MIST BPH treatments are the unknown long-term effect and the lack of proper selection of candidates for a specific procedure. With analysis of the secondary outcomes, we aspire to contribute to a better understanding of durability and provide knowledge to guide treatment decisions. TRIAL REGISTRATION ClinicalTrials.gov NCT05686525. Registered on January 17, 2023, https://clinicaltrials.gov/study/NCT05686525 .
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Affiliation(s)
- Anna Kristensen-Alvarez
- Department of Urology, Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark.
- Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark.
| | - Mikkel Fode
- Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
- Department of Urology, Copenhagen University Hospital - Herlev and Gentofte, Herlev, Denmark
| | - Hein Vincent Stroomberg
- Department of Urology, Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark
- Department of Public Health, University of Copenhagen, Copenhagen, Denmark
| | - Kurt Krøyer Nielsen
- Department of Urology, Copenhagen University Hospital - Herlev and Gentofte, Herlev, Denmark
| | - Albert Arch
- Department of Urology, Copenhagen University Hospital - Herlev and Gentofte, Herlev, Denmark
| | - Lars Birger Lönn
- Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
- Department of Radiology, Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark
| | - Mikkel Taudorf
- Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
- Department of Radiology, Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark
| | | | - Andreas Røder
- Department of Urology, Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark
- Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
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Sciacqua LV, Vanzulli A, Di Meo R, Pellegrino G, Lavorato R, Vitale G, Carrafiello G. Minimally Invasive Treatment in Benign Prostatic Hyperplasia (BPH). Technol Cancer Res Treat 2023; 22:15330338231155000. [PMID: 36794408 PMCID: PMC9936536 DOI: 10.1177/15330338231155000] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2023] Open
Abstract
Review efficacy and safety of minimally-invasive treatments for Low Urinary Tract Symptoms (LUTS) in patients affected by Benign Prostate Hyperplasia (BPH). We performed a systematic review of the literature from 1993 to 2022 leveraging original research articles, reviews, and case-studies published in peer-reviewed journals and stored in public repositories. Prostate artery embolization (PAE), transurethral needle ablation (TUNA), transurethral microwave thermotherapy (TUMT), high intensity focused ultrasound (HIFU), laser treatments and Cryoablation are valid and safe alternatives to the gold standard (surgery) in the treatment of LUTS in patients affected by BPH, with fewer undesired effects being reported.
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Affiliation(s)
- L V Sciacqua
- Residency Program in Diagnostic and Interventional Radiology, Università degli Studi di Milano, Milan, Italy
| | - A Vanzulli
- Residency Program in Diagnostic and Interventional Radiology, Università degli Studi di Milano, Milan, Italy
| | - R Di Meo
- Residency Program in Diagnostic and Interventional Radiology, Università degli Studi di Milano, Milan, Italy
| | - G Pellegrino
- Residency Program in Diagnostic and Interventional Radiology, Università degli Studi di Milano, Milan, Italy
| | - R Lavorato
- Researcher at Diagnostic and Interventional Radiology Department, IRCCS Ca' Granda Fondazione Ospedale Maggiore Policlinico, Milan, Italy
| | - G Vitale
- Department of Medical Biotechnology and Translational Medicine, 9304University of Milan, Milan, Italy.,Istituto Auxologico Italiano, IRCCS, Laboratory of Geriatric and Oncologic Neuroendocrinology Research, Milan, Italy
| | - G Carrafiello
- Diagnostic and Interventional Radiology Department, IRCCS Ca' Granda Fondazione Ospedale Maggiore Policlinico, Università degli Studi di Milano, Milan, Italy
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Efficacy and Safety of Transurethral Columnar Balloon Dilation of the Prostate for the Treatment of Benign Prostatic Hyperplasia: A Multicenter Trial. COMPUTATIONAL AND MATHEMATICAL METHODS IN MEDICINE 2022; 2022:7881247. [PMID: 35720037 PMCID: PMC9203188 DOI: 10.1155/2022/7881247] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Revised: 04/21/2022] [Accepted: 04/30/2022] [Indexed: 01/11/2023]
Abstract
Objective To observe the efficacy and safety of transurethral columnar balloon dilation of the prostate (TUCBDP) for benign prostatic hyperplasia (BPH) in a multicenter trial. Method This multicenter study included 2050 patients with BPH who underwent TUCBDP from 11 cities of Zhejiang Province, from September 2015 to June 2021. Clinical assessment included recording and measurement of preoperative and postoperative data including prostate volume, serum prostate-specific antigen (PSA) levels, IPSS score, quality of life (QoL), maximum urinary flow rate (Qmax), postvoid residual urine (PVR), International Index of Erectile Function (IIEF-5), and Male Sexual Health Questionnaire-Ejaculatory Dysfunction Short Form (MSHQ-EjD-SF). Additionally, the correlation of the indicators was analyzed using linear regression and early postoperative complications were also recorded. Results One month after surgery, the patients' IPSS score, QoL, and PVR were significantly decreased, while the Qmax, IIEF-5, and MSHQ-EjD-SF scores were increased considerably, compared with preoperative data. After surgery, the patient's IPSS score, QoL, and Qmax were improved year by year, while PVR gradually decreased. Three months after TUCBDP, IIEF-5 and MSHQ-EjD-SF levels reached the climax. Linear regression analysis showed that the serum PSA level was significantly positively correlated with Qmax at 3 months after TUCBDP, while at 6 months after surgery, it was negatively related to IPSS and QoL. Early postoperative complications appeared in 384 cases during follow-up. Conclusion Collectively, TUCBDP may effectively improve the urinary and sexual function of BPH patients, with fewer postoperative complications, and its efficacy is not limited by age and prostate volume. It can be considered a better treatment option for BPH.
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The UroLift implant: mechanism behind rapid and durable relief from prostatic obstruction. Prostate Cancer Prostatic Dis 2022; 25:79-85. [PMID: 34363010 PMCID: PMC9018420 DOI: 10.1038/s41391-021-00434-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Revised: 06/16/2021] [Accepted: 07/21/2021] [Indexed: 02/04/2023]
Abstract
BACKGROUND Benign prostatic hyperplasia (BPH) is an affliction of the aging male population that contributes to bothersome and disruptive lower urinary tract symptoms (LUTS). The UroLift® implant has been developed as a mechanical means of widening the prostatic urethra and providing relief from lower urinary tract symptoms (LUTS) through a minimally invasive procedure. METHODS In the current study, we utilize histological results from canine tissue, resected tissue from human subjects treated with the UroLift System and post-market surveillance data collected by the manufacturer in order to elucidate the long-term biological mechanism of action of the UroLift implant. RESULTS The delivery of the implant causes tissue compression, likely resulting in focal ischemia that causes observed local atrophy and minimal-mild chronic inflammation that ultimately remodels tissue to produce a widened prostatic urethra. CONCLUSIONS These studies reveal the lack of impact the device has on systemic tissue, providing evidence that the UroLift System is benign and biocompatible, and offering histologic explanation for the clinically observed durability.
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O'Connor LP, Ramedani S, Daneshvar M, George AK, Abreu AL, Cacciamani GE, Lebastchi AH. Future perspective of focal therapy for localized prostate cancer. Asian J Urol 2021; 8:354-361. [PMID: 34765443 PMCID: PMC8566361 DOI: 10.1016/j.ajur.2021.04.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Revised: 03/09/2021] [Accepted: 04/06/2021] [Indexed: 10/25/2022] Open
Abstract
Objective To summarize the recent literature discussing focal therapy for localized prostate cancer. Methods A thorough literature review was performed using PubMed to identify recent studies involving focal therapy for the treatment of localized prostate cancer. Results In an effort to decrease the morbidity associated with prostate cancer treatment, many urologists are turning to focal therapy as an alternative treatment option. With this approach, the cancer bearing portion of the prostate is targeted while leaving the benign tissue untouched. Multiparametric magnetic resonance imaging remains the gold standard for visualization during focal therapy, but new imaging modalities such as prostate specific membrane antigen/positron emission tomography and contrast enhanced ultrasound are being investigated. Furthermore, several biomarkers, such as prostate cancer antigen 3 and prostate health index, are used in conjunction with imaging to improve risk stratification prior to focal therapy. Lastly, there are several novel technologies such as nanoparticles and transurethral devices that are under investigation for use in focal therapy. Conclusion Focal therapy is proving to be a promising option for the treatment of localized prostate cancer. However, further study is needed to determine the true efficacy of these exciting new technologies.
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Affiliation(s)
- Luke P O'Connor
- Urologic Oncology Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Shayann Ramedani
- College of Medicine, The Pennsylvania State University, Hershey, PA, USA
| | - Michael Daneshvar
- Urologic Oncology Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Arvin K George
- Department of Urology, University of Michigan, Ann Arbor, MI, USA
| | - Andre Luis Abreu
- Center for Image-Guided and Focal Therapy for Prostate Cancer, Institute of Urology and Catherine and Joseph Aresty Department of Urology, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA.,Institute of Urology and Catherine and Joseph Aresty Department of Urology, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
| | - Giovanni E Cacciamani
- Center for Image-Guided and Focal Therapy for Prostate Cancer, Institute of Urology and Catherine and Joseph Aresty Department of Urology, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA.,Institute of Urology and Catherine and Joseph Aresty Department of Urology, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
| | - Amir H Lebastchi
- Center for Image-Guided and Focal Therapy for Prostate Cancer, Institute of Urology and Catherine and Joseph Aresty Department of Urology, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA.,Institute of Urology and Catherine and Joseph Aresty Department of Urology, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
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Franco JV, Jung JH, Imamura M, Borofsky M, Omar MI, Escobar Liquitay CM, Young S, Golzarian J, Veroniki AA, Garegnani L, Dahm P. Minimally invasive treatments for lower urinary tract symptoms in men with benign prostatic hyperplasia: a network meta-analysis. Cochrane Database Syst Rev 2021; 7:CD013656. [PMID: 34693990 PMCID: PMC8543673 DOI: 10.1002/14651858.cd013656.pub2] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
BACKGROUND A variety of minimally invasive treatments are available as an alternative to transurethral resection of the prostate (TURP) for management of lower urinary tract symptoms (LUTS) in men with benign prostatic hyperplasia (BPH). However, it is unclear which treatments provide better results. OBJECTIVES Our primary objective was to assess the comparative effectiveness of minimally invasive treatments for lower urinary tract symptoms in men with BPH through a network meta-analysis. Our secondary objective was to obtain an estimate of relative ranking of these minimally invasive treatments, according to their effects. SEARCH METHODS We performed a comprehensive search of multiple databases (CENTRAL, MEDLINE, Embase, Scopus, Web of Science and LILACS), trials registries, other sources of grey literature, and conference proceedings, up to 24 February 2021. We had no restrictions on language of publication or publication status. SELECTION CRITERIA We included parallel-group randomized controlled trials assessing the effects of the following minimally invasive treatments, compared to TURP or sham treatment, on men with moderate to severe LUTS due to BPH: convective radiofrequency water vapor therapy (CRFWVT); prostatic arterial embolization (PAE); prostatic urethral lift (PUL); temporary implantable nitinol device (TIND); and transurethral microwave thermotherapy (TUMT). DATA COLLECTION AND ANALYSIS Two review authors independently screened the literature, extracted data, and assessed risk of bias. We performed statistical analyses using a random-effects model for pair-wise comparisons and a frequentist network meta-analysis for combined estimates. We interpreted them according to Cochrane methods. We planned subgroup analyses by age, prostate volume, and severity of baseline symptoms. We used risk ratios (RRs) with 95% confidence intervals (CIs) to express dichotomous data and mean differences (MDs) with 95% CIs to express continuous data. We used the GRADE approach to rate the certainty of evidence. MAIN RESULTS We included 27 trials involving 3017 men, mostly over age 50, with severe LUTS due to BPH. The overall certainty of evidence was low to very low due to concerns regarding bias, imprecision, inconsistency (heterogeneity), and incoherence. Based on the network meta-analysis, results for our main outcomes were as follows. Urologic symptoms (19 studies, 1847 participants): PUL and PAE may result in little to no difference in urologic symptoms scores (MD of International Prostate Symptoms Score [IPSS]) compared to TURP (3 to 12 months; MD range 0 to 35; higher scores indicate worse symptoms; PUL: 1.47, 95% CI -4.00 to 6.93; PAE: 1.55, 95% CI -1.23 to 4.33; low-certainty evidence). CRFWVT, TUMT, and TIND may result in worse urologic symptoms scores compared to TURP at short-term follow-up, but the CIs include little to no difference (CRFWVT: 3.6, 95% CI -4.25 to 11.46; TUMT: 3.98, 95% CI 0.85 to 7.10; TIND: 7.5, 95% CI -0.68 to 15.69; low-certainty evidence). Quality of life (QoL) (13 studies, 1459 participants): All interventions may result in little to no difference in the QoL scores, compared to TURP (3 to 12 months; MD of IPSS-QoL score; MD range 0 to 6; higher scores indicate worse symptoms; PUL: 0.06, 95% CI -1.17 to 1.30; PAE: 0.09, 95% CI -0.57 to 0.75; CRFWVT: 0.37, 95% CI -1.45 to 2.20; TUMT: 0.65, 95% CI -0.48 to 1.78; TIND: 0.87, 95% CI -1.04 to 2.79; low-certainty evidence). Major adverse events (15 studies, 1573 participants): TUMT probably results in a large reduction of major adverse events compared to TURP (RR 0.20, 95% CI 0.09 to 0.43; moderate-certainty evidence). PUL, CRFWVT, TIND and PAE may also result in a large reduction in major adverse events, but CIs include substantial benefits and harms at three months to 36 months; PUL: RR 0.30, 95% CI 0.04 to 2.22; CRFWVT: RR 0.37, 95% CI 0.01 to 18.62; TIND: RR 0.52, 95% CI 0.01 to 24.46; PAE: RR 0.65, 95% CI 0.25 to 1.68; low-certainty evidence). Retreatment (10 studies, 799 participants): We are uncertain about the effects of PAE and PUL on retreatment compared to TURP (12 to 60 months; PUL: RR 2.39, 95% CI 0.51 to 11.1; PAE: RR 4.39, 95% CI 1.25 to 15.44; very low-certainty evidence). TUMT may result in higher retreatment rates (RR 9.71, 95% CI 2.35 to 40.13; low-certainty evidence). Erectile function (six studies, 640 participants): We are very uncertain of the effects of minimally invasive treatments on erectile function (MD of International Index of Erectile Function [IIEF-5]; range 5 to 25; higher scores indicates better function; CRFWVT: 6.49, 95% CI -8.13 to 21.12; TIND: 5.19, 95% CI -9.36 to 19.74; PUL: 3.00, 95% CI -5.45 to 11.44; PAE: -0.03, 95% CI -6.38, 6.32; very low-certainty evidence). Ejaculatory dysfunction (eight studies, 461 participants): We are uncertain of the effects of PUL, PAE and TUMT on ejaculatory dysfunction compared to TURP (3 to 12 months; PUL: RR 0.05, 95 % CI 0.00 to 1.06; PAE: RR 0.35, 95% CI 0.13 to 0.92; TUMT: RR 0.34, 95% CI 0.17 to 0.68; low-certainty evidence). TURP is the reference treatment with the highest likelihood of being the most efficacious for urinary symptoms, QoL and retreatment, but the least favorable in terms of major adverse events, erectile function and ejaculatory function. Among minimally invasive procedures, PUL and PAE have the highest likelihood of being the most efficacious for urinary symptoms and QoL, TUMT for major adverse events, PUL for retreatment, CRFWVT and TIND for erectile function and PUL for ejaculatory function. AUTHORS' CONCLUSIONS Minimally invasive treatments may result in similar or worse effects concerning urinary symptoms and QoL compared to TURP at short-term follow-up. They may result in fewer major adverse events, especially in the case of PUL and PAE; resulting in better rankings for symptoms scores. PUL may result in fewer retreatments compared to other interventions, especially TUMT, which had the highest retreatment rates at long-term follow-up. We are very uncertain about the effects of these interventions on erectile function. There was limited long-term data, especially for CRFWVT and TIND. Future high-quality studies with more extended follow-up, comparing different, active treatment modalities, and adequately reporting critical outcomes relevant to patients, including those related to sexual function, could provide more information on the relative effectiveness of these interventions.
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Affiliation(s)
- Juan Va Franco
- Associate Cochrane Centre, Instituto Universitario Hospital Italiano de Buenos Aires, Buenos Aires, Argentina
| | - Jae Hung Jung
- Department of Urology, Yonsei University Wonju College of Medicine, Wonju, Korea, South
- Center of Evidence-Based Medicine, Institute of Convergence Science, Yonsei University, Seoul, Korea, South
| | - Mari Imamura
- Health Services Research Unit, University of Aberdeen, Aberdeen, UK
| | - Michael Borofsky
- Department of Urology, University of Minnesota, Minneapolis, Minnesota, USA
| | - Muhammad Imran Omar
- Guidelines Office, European Association of Urology, Arnhem, Netherlands
- Academic Urology Unit, University of Aberdeen, Aberdeen, UK
| | | | - Shamar Young
- Department of Radiology, Division of Interventional Radiology & Vascular Imaging, University of Minnesota, Minneapolis, Minnesota, USA
| | - Jafar Golzarian
- Department of Radiology, Division of Interventional Radiology & Vascular Imaging, University of Minnesota, Minneapolis, Minnesota, USA
| | - Areti Angeliki Veroniki
- Department of Primary Education, School of Education, University of Ioannina, Ioannina, Greece
| | - Luis Garegnani
- Associate Cochrane Centre, Instituto Universitario Hospital Italiano de Buenos Aires, Buenos Aires, Argentina
| | - Philipp Dahm
- Department of Urology, University of Minnesota, Minneapolis, Minnesota, USA
- Urology Section, Minneapolis VA Health Care System, Minneapolis, Minnesota, USA
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Ziętek RJ, Ziętek ZM. Transurethral Microwave Thermotherapy (TUMT) in the Treatment of Benign Prostatic Hyperplasia: A Preliminary Report. Med Sci Monit 2021; 27:e931597. [PMID: 34234095 PMCID: PMC8276617 DOI: 10.12659/msm.931597] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Accepted: 04/18/2021] [Indexed: 11/25/2022] Open
Abstract
BACKGROUND One treatment option for benign prostatic hyperplasia (BPH) is transurethral microwave thermotherapy (TUMT). Unfortunately, TUMT has been increasingly marginalized recently. The aim of this study was to evaluate erectile function and urinary symptoms in patients after TUMT for BPH and compare the results with those of patients on pharmacological treatment for BPH. MATERIAL AND METHODS The study group consisted of 840 patients with BPH treated with TUMT and a control group consisting of 1040 patients who underwent pharmacotherapy. Erectile dysfunction was evaluated using the International Index of Erectile Function-5 questionnaire and the Individual Postoperative Erectile Assessment (IPEA) questionnaire, which was created by the authors for this study. Urinary symptoms were evaluated using the International Prostate Symptom Score (IPSS) questionnaire. RESULTS More than 50% of all patients experienced an improvement in urinary symptoms after TUMT, compared with only approximately 30% in the control group. Differences in each of the IPSS symptom scales between the TUMT and control groups were statistically significant (P<0.031, P<0.041, and P<0.025 for mild, moderate, and severe symptoms, respectively). Improvement in erectile dysfunction after TUMT was also statistically significant (P<0.0001, P<0.0001, P<0.05 for mild, moderate, and severe erectile dysfunction, respectively). Based on the IPEA questionnaire, approximately 24% of the TUMT group reported significant improvement in erectile function, while a decrease in erectile function was reported in the control group. CONCLUSIONS TUMT may still be a valuable option in the treatment of BPH. TUMT may be especially suitable for patients who expect to improve urinary symptoms without decreasing erectile function.
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Affiliation(s)
- Roger J. Ziętek
- Department of Urology, Hospital of the Ministry of Internal Affairs and Administration, Szczecin, Poland
| | - Zbigniew M. Ziętek
- Department of Urology, Hospital of the Ministry of Internal Affairs and Administration, Szczecin, Poland
- Department of Normal and Clinical Anatomy, Pomeranian Medical University, Szczecin, Poland
- Department of General Surgery and Transplantology, Pomeranian Medical University, Szczecin, Poland
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Franco JV, Garegnani L, Escobar Liquitay CM, Borofsky M, Dahm P. Transurethral microwave thermotherapy for the treatment of lower urinary tract symptoms in men with benign prostatic hyperplasia. Cochrane Database Syst Rev 2021; 6:CD004135. [PMID: 34180047 PMCID: PMC8236484 DOI: 10.1002/14651858.cd004135.pub4] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
BACKGROUND Transurethral resection of the prostate (TURP) has been the gold-standard treatment for alleviating urinary symptoms and improving urinary flow in men with symptomatic benign prostatic hyperplasia (BPH). However, the morbidity of TURP approaches 20%, and less invasive techniques have been developed for treating BPH. Transurethral microwave thermotherapy (TUMT) is an alternative, minimally-invasive treatment that delivers microwave energy to produce coagulation necrosis in prostatic tissue. This is an update of a review last published in 2012. OBJECTIVES To assess the effects of transurethral microwave thermotherapy for the treatment of lower urinary tract symptoms in men with benign prostatic hyperplasia. SEARCH METHODS We performed a comprehensive search using multiple databases (the Cochrane Library, MEDLINE, Embase, Scopus, Web of Science, and LILACS), trials registries, other sources of grey literature, and conference proceedings published up to 31 May 2021, with no restrictions by language or publication status. SELECTION CRITERIA We included parallel-group randomized controlled trials (RCTs) and cluster-RCTs of participants with BPH who underwent TUMT. DATA COLLECTION AND ANALYSIS Two review authors independently assessed studies for inclusion at each stage and undertook data extraction and risk of bias and GRADE assessments of the certainty of the evidence (CoE). We considered review outcomes measured up to 12 months after randomization as short-term and beyond 12 months as long-term. Our main outcomes included: urologic symptoms scores, quality of life, major adverse events, retreatment, and ejaculatory and erectile function. MAIN RESULTS In this update, we identified no new RCTs, but we included data from studies excluded in the previous version of this review. We included 16 trials with 1919 participants, with a median age of 69 and moderate lower urinary tract symptoms. The certainty of the evidence for most comparisons was moderate-to-low, due to an overall high risk of bias across studies and imprecision (few participants and events). TUMT versus TURP Based on data from four studies with 306 participants, when compared to TURP, TUMT probably results in little to no difference in urologic symptom scores measured by the International Prostatic Symptom Score (IPSS) on a scale from 0 to 35, with higher scores indicating worse symptoms at short-term follow-up (mean difference (MD) 1.00, 95% confidence interval (CI) -0.03 to 2.03; moderate certainty). There is likely to be little to no difference in the quality of life (MD -0.10, 95% CI -0.67 to 0.47; 1 study, 136 participants, moderate certainty). TUMT likely results in fewer major adverse events (RR 0.20, 95% CI 0.09 to 0.43; 6 studies, 525 participants, moderate certainty); based on 168 cases per 1000 men in the TURP group, this corresponds to 135 fewer (153 to 96 fewer) per 1000 men in the TUMT group. TUMT, however, probably results in a large increase in the need for retreatment (risk ratio (RR) 7.07, 95% CI 1.94 to 25.82; 5 studies, 337 participants, moderate certainty) (usually by repeated TUMT or TURP); based on zero cases per 1000 men in the TURP group, this corresponds to 90 more (40 to 150 more) per 1000 men in the TUMT group. There may be little to no difference in erectile function between these interventions (RR 0.63, 95% CI 0.24 to 1.63; 5 studies, 337 participants; low certainty). However, TUMT may result in fewer cases of ejaculatory dysfunction compared to TURP (RR 0.36, 95% CI 0.24 to 0.53; 4 studies, 241 participants; low certainty). TUMT versus sham Based on data from four studies with 483 participants we found that, when compared to sham, TUMT probably reduces urologic symptom scores using the IPSS at short-term follow-up (MD -5.40, 95% CI -6.97 to -3.84; moderate certainty). TUMT may cause little to no difference in the quality of life (MD -0.95, 95% CI -1.14 to -0.77; 2 studies, 347 participants; low certainty) as measured by the IPSS quality-of-life question on a scale from 0 to 6, with higher scores indicating a worse quality of life. We are very uncertain about the effects on major adverse events, since most studies reported no events or isolated lesions of the urinary tract. TUMT may also reduce the need for retreatment compared to sham (RR 0.27, 95% CI 0.08 to 0.88; 2 studies, 82 participants, low certainty); based on 194 retreatments per 1000 men in the sham group, this corresponds to 141 fewer (178 to 23 fewer) per 1000 men in the TUMT group. We are very uncertain of the effects on erectile and ejaculatory function (very low certainty), since we found isolated reports of impotence and ejaculatory disorders (anejaculation and hematospermia). There were no data available for the comparisons of TUMT versus convective radiofrequency water vapor therapy, prostatic urethral lift, prostatic arterial embolization or temporary implantable nitinol device. AUTHORS' CONCLUSIONS TUMT provides a similar reduction in urinary symptoms compared to the standard treatment (TURP), with fewer major adverse events and fewer cases of ejaculatory dysfunction at short-term follow-up. However, TUMT probably results in a large increase in retreatment rates. Study limitations and imprecision reduced the confidence we can place in these results. Furthermore, most studies were performed over 20 years ago. Given the emergence of newer minimally-invasive treatments, high-quality head-to-head trials with longer follow-up are needed to clarify their relative effectiveness. Patients' values and preferences, their comorbidities and the effects of other available minimally-invasive procedures, among other factors, can guide clinicians when choosing the optimal treatment for this condition.
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Affiliation(s)
- Juan Va Franco
- Associate Cochrane Centre, Instituto Universitario Hospital Italiano de Buenos Aires, Buenos Aires, Argentina
| | - Luis Garegnani
- Research Department, Instituto Universitario Hospital Italiano, Buenos Aires, Argentina
| | | | - Michael Borofsky
- Department of Urology, University of Minnesota, Minneapolis, Minnesota, USA
| | - Philipp Dahm
- Urology Section, Minneapolis VA Health Care System, Minneapolis, Minnesota, USA
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9
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Karunakaran C, Zhao H, Xin H, Witte RS. Real-Time Volumetric Thermoacoustic Imaging and Thermometry Using a 1.5-D Ultrasound Array. IEEE TRANSACTIONS ON ULTRASONICS, FERROELECTRICS, AND FREQUENCY CONTROL 2021; 68:1234-1244. [PMID: 33196438 DOI: 10.1109/tuffc.2020.3038053] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Noninvasive thermal therapies for the treatment of breast cancer depend on accurate monitoring of tissue temperature to optimize treatment and ensure safety. This work describes a real-time system for 3-D thermoacoustic imaging and thermometry (TAI-TAT) for tracking temperature in tissue samples during heating. The study combines a 2.7-GHz microwave pulse generator with a custom 1.5-D 0.6 MHz ultrasound array for generating and detecting TA signals. The system is tested and validated on slabs of biological tissue and saline gel during heating. Calibration curves for relating the TA signal to temperature were calculated in saline gel (3.40%/°C), muscle (1.73%/°C), and fat (1.15%/°C), respectively. The calibrations were used to produce real-time, volumetric temperature maps at ~3-s intervals with a spatial resolution of approximately 3 mm. TAT temperature changes within a region of interest were compared to adjacent thermocouples with a mean error of 17.3%, 13.2%, and 20.4% for muscle, gel, and fat, respectively. The TAT algorithm was also able to simultaneously track temperatures in different tissues. With further development, noninvasive TAI-TAT may prove to be a valuable method for accurate and real-time feedback during breast cancer ablation therapy.
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10
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Manov JJ, Mohan PP, Kava B, Bhatia S. Benign Prostatic Hyperplasia: A Brief Overview of Pathogenesis, Diagnosis, and Current State of Therapy. Tech Vasc Interv Radiol 2020; 23:100687. [PMID: 33308528 DOI: 10.1016/j.tvir.2020.100687] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
As prostatic artery embolization is assuming an increasingly important role in the management of benign prostatic hyperplasia, it is important for the practicing interventional radiologist to have a deep understanding of all aspects of the disease process and the available treatment options. This paper provides a comprehensive overview of the pathophysiology, diagnosis and management options for benign prostatic hyperplasia with an emphasis on the surgical and medical treatments.
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Affiliation(s)
- John J Manov
- Department of Radiology, University of Miami, Miller School of Medicine, FL.
| | - Prasoon P Mohan
- Department of Interventional Radiology, University of Miami, Miller School of Medicine, FL
| | - Bruce Kava
- Department of Urology, University of Miami, Miller School of Medicine, FL
| | - Shivank Bhatia
- Department of Interventional Radiology, University of Miami, Miller School of Medicine, FL
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11
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Franco JVA, Jung JH, Imamura M, Borofsky M, Omar MI, Escobar Liquitay CM, Young S, Veroniki AA, Garegnani L, Dahm P. Minimally invasive treatments for lower urinary tract symptoms in men with benign prostatic hyperplasia: a network meta-analysis. Hippokratia 2020. [DOI: 10.1002/14651858.cd013656] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- Juan VA Franco
- Argentine Cochrane Centre; Instituto Universitario Hospital Italiano; Buenos Aires Argentina
| | - Jae Hung Jung
- Department of Urology; Yonsei University Wonju College of Medicine; Wonju Korea, South
| | - Mari Imamura
- Health Services Research Unit; University of Aberdeen; Aberdeen UK
| | - Michael Borofsky
- Department of Urology; University of Minnesota; Minneapolis Minnesota USA
| | - Muhammad Imran Omar
- European Association of Urology; Arnhem Netherlands
- Academic Urology Unit; University of Aberdeen; Aberdeen UK
| | | | - Shamar Young
- Department of Radiology, Division of Interventional Radiology; University of Minnesota; Minneapolis Minnesota USA
| | - Areti Angeliki Veroniki
- Department of Primary Education, School of Education; University of Ioannina; Ioannina Greece
| | - Luis Garegnani
- Research Department; Instituto Universitario Hospital Italiano; Buenos Aires Argentina
| | - Philipp Dahm
- Urology Section; Minneapolis VA Health Care System; Minneapolis Minnesota USA
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12
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Tanneru K, Gautam S, Norez D, Kumar J, Alam MU, Koocheckpour S, Balaji KC, Joseph C. Meta-analysis and systematic review of intermediate-term follow-up of prostatic urethral lift for benign prostatic hyperplasia. Int Urol Nephrol 2020; 52:999-1008. [DOI: 10.1007/s11255-020-02408-y] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2019] [Accepted: 02/06/2020] [Indexed: 12/12/2022]
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Affiliation(s)
- K Wilhelm
- Department Chirurgie, Klinik für Urologie, Universitätsklinikum Freiburg, Hugstetter Str. 55, 79106, Freiburg, Deutschland.
- UroEvidence, Deutsche Gesellschaft für Urologie, Nestorstraße 8/9, 10709, Berlin, Deutschland.
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Silva V, Grande AJ, Peccin MS. Physical activity for lower urinary tract symptoms secondary to benign prostatic obstruction. Cochrane Database Syst Rev 2019; 4:CD012044. [PMID: 30953341 PMCID: PMC6450803 DOI: 10.1002/14651858.cd012044.pub2] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
BACKGROUND Lower urinary tract symptoms caused by benign prostatic obstruction (LUTS/BPO) represents one of the most common clinical complaints in men. Physical activity might represent a viable first-line intervention for treating LUTS/BPO. OBJECTIVES To assess the effects of physical activity for lower urinary tract symptoms caused by benign prostatic obstruction (LUTS/BPO). SEARCH METHODS We performed a comprehensive search of multiple databases (CENTRAL, MEDLINE, Embase, Web of Science, LILACS, ClinicalTrials.gov, and WHO ICTRP); checked the reference lists of retrieved articles; and handsearched abstract proceedings of conferences with no restrictions on the language of publication or publication status from database inception to 6 November 2018. SELECTION CRITERIA We included published and unpublished randomised controlled and controlled clinical trials that included men diagnosed with LUTS/BPO. We excluded studies in which medical history suggested non-BPO causes of LUTS or prior invasive therapies to physical activity or that used electrical stimulation. DATA COLLECTION AND ANALYSIS Two review authors independently assessed study eligibility, extracted data, and assessed the risk of bias of included studies. We assessed primary outcomes (symptom score for LUTS; response rate, defined as 20% improvement in symptom score; withdrawal due to adverse events) and secondary outcomes (change of medication use; need for an invasive procedure; postvoid residual urine). We assessed the quality of the evidence using the GRADE approach. MAIN RESULTS We included six studies that randomised 652 men over 40 years old with moderate or severe LUTS. The four different comparisons were as follows:Physical activity versus watchful waitingTwo RCTs randomised 119 participants. The interventions included tai chi and pelvic floor exercise. The evidence was overall of very low quality, and we are uncertain about the effects of physical activity on symptom score for LUTS (mean difference (MD) -8.1, 95% confidence interval (CI) -13.2 to -3.1); response rate (risk ratio (RR) 1.80, 95% CI 0.81 to 4.02; 286 more men per 1000, 95% CI 68 fewer to 1079 more); and withdrawal due to adverse events (RR 1.00, 95% CI 0.59 to 1.69; 0 fewer men per 1000, 95% CI 205 fewer to 345 more).Physical activity as part of self-management programme versus watchful waitingTwo RCTs randomised 362 participants. Pelvic floor exercise was one of multiple intervention components. The evidence was of very low quality, and we are uncertain about the effects of physical activity for symptom score for LUTS (MD -6.2, 95% CI -9.9 to -2.5); response rate (RR 2.36, 95% CI 1.32 to 4.21; 424 more men per 1000, 95% CI 100 more to 1000 more); and withdrawal due to adverse events (risk difference 0.00, 95% CI -0.05 to 0.06; 65 fewer men per 1000, 95% CI 65 fewer to 65 fewer).Physical activity as part of weight reduction programme versus watchful waitingOne RCT randomised 130 participants. An unclear type of intense exercise was one of multiple intervention components. The evidence was of very low quality, and we are uncertain about the effects for symptom score for LUTS (MD -1.1, 95% CI -3.5 to 1.3); response rate (RR 1.20, 95% CI 0.74 to 1.94; 67 more men per 1000, 95% CI 87 fewer to 313 more); and withdrawal due to adverse events (RR 1.63, 95% CI 1.03 to 2.57; 184 more men per 1000, 95% CI 9 more to 459 more).Physical activity versus alpha-blockersOne RCT randomised 41 participants to pelvic floor exercise or alpha-blockers. The evidence was of very low quality, and we are uncertain about the effects for symptom score for LUTS (MD 2.8, 95% CI -0.9 to 6.4) and response rate (RR 0.80, 95% CI 0.55 to 1.15; 167 fewer men per 1000, 95% CI 375 fewer to 125 more). The evidence was of low quality for withdrawal due to adverse events; the effects for this outcome may be similar between interventions (RR 0.86, 95% CI 0.06 to 12.89; 7 fewer men per 1000, 95% CI 49 fewer to 626 more). AUTHORS' CONCLUSIONS We rated the quality of the evidence for most of the effects of physical activity for LUTS/BPO as very low. We are therefore uncertain whether physical activity affects symptom scores for LUTS, response rate, and withdrawal due to adverse events. Our confidence in the estimates was lowered due to study limitations, inconsistency, indirectness, and imprecision. Additional high-quality research is necessary.
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Affiliation(s)
- Valter Silva
- Centro Universitário Tiradentes (UNIT/AL)Postgraduate Program on Society, Technology and Public Policies (SOTEPP); Department of MedicineAv. Comendador Gustavo Paiva, 5017Cruz das AlmasMaceióALBrazil57038‐000
| | - Antonio Jose Grande
- Universidade Estadual de Mato Grosso do SulLaboratory of Evidence‐Based PracticeAv. Dom Antônio Barbosa, 4155Vila Santo AmaroCampo GrandeMato Grosso do SulBrazil79115‐898
| | - Maria S Peccin
- Universidade Federal de São PauloDepartment of Human Movement SciencesR. Silva Jardim, 136 ‐ Vl. Mathias ‐SantosSão PauloBrazil11015‐020
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Zumstein V, Betschart P, Vetterlein MW, Kluth LA, Hechelhammer L, Mordasini L, Engeler DS, Kessler TM, Schmid HP, Abt D. Prostatic Artery Embolization versus Standard Surgical Treatment for Lower Urinary Tract Symptoms Secondary to Benign Prostatic Hyperplasia: A Systematic Review and Meta-analysis. Eur Urol Focus 2018; 5:1091-1100. [PMID: 30292422 DOI: 10.1016/j.euf.2018.09.005] [Citation(s) in RCA: 61] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2018] [Accepted: 09/10/2018] [Indexed: 01/28/2023]
Abstract
CONTEXT Prostatic artery embolization (PAE) has been introduced into clinical practice for the treatment of lower urinary tract symptoms secondary to benign prostatic hyperplasia (BPH-LUTS) despite a lack of high-level evidence. OBJECTIVE To perform a systematic review and meta-analysis of clinical trials comparing efficacy and safety of PAE versus established surgical therapies. EVIDENCE ACQUISITION Medline, Embase, and York CRD were searched up to June 23, 2018. Only comparative studies were included. The risk of bias was assessed by the Cochrane Collaboration tool. Meta-analyses were performed using RevMan 5.3. EVIDENCE SYNTHESIS Five studies including 708 patients met the selection criteria. Risk of bias was rated high for most of the studies. Mean reduction in the International Prostate Symptom Score was lower after PAE compared with standard surgical therapies (mean difference 3.80 points [95% confidence interval: 2.77-4.83]; p<0.001). PAE was less efficient regarding improvements in all functional parameters assessed including maximum urinary flow, post void residual, and reduction of prostate volume. In contrast, patient-reported erectile function (International Index of Erectile Function 5) was better after PAE and significantly fewer adverse events occurred after PAE. CONCLUSIONS Moderately strong evidence confirms efficacy and safety of PAE in the treatment of BPH-LUTS in the short term. Significant advantages regarding safety and sexual function, but clear disadvantages regarding all other patient-reported and functional outcomes were found for PAE. Large-scale randomized controlled trials including longer follow-up periods are mandatory before PAE can be considered as a standard therapy and to define the ideal indication for PAE in the management of BPH-LUTS. PATIENT SUMMARY We reviewed the role of prostatic artery embolization (PAE) in the treatment of symptoms associated with benign overgrowth of the prostate. The results suggest that PAE is not as effective as established surgical therapies but has fewer side effects. Further research is required to determine whether PAE is the best treatment for certain types of patients. PAE should, therefore, not yet be considered a standard treatment.
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Affiliation(s)
- Valentin Zumstein
- Department of Urology, St. Gallen Cantonal Hospital, St. Gallen, Switzerland; Department of Urology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
| | - Patrick Betschart
- Department of Urology, St. Gallen Cantonal Hospital, St. Gallen, Switzerland
| | - Malte W Vetterlein
- Department of Urology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Luis A Kluth
- Department of Urology, University Medical Center Frankfurt, Frankfurt (Main), Germany
| | - Lukas Hechelhammer
- Department of Radiology and Nuclear Medicine, St. Gallen Cantonal Hospital, St. Gallen, Switzerland
| | - Livio Mordasini
- Department of Urology, Lucerne Cantonal Hospital, Lucerne, Switzerland
| | - Daniel S Engeler
- Department of Urology, St. Gallen Cantonal Hospital, St. Gallen, Switzerland
| | - Thomas M Kessler
- Department of Neuro-Urology, Balgrist University Hospital, University of Zürich, Zürich, Switzerland
| | - Hans-Peter Schmid
- Department of Urology, St. Gallen Cantonal Hospital, St. Gallen, Switzerland
| | - Dominik Abt
- Department of Urology, St. Gallen Cantonal Hospital, St. Gallen, Switzerland
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Borchert A, Leavitt DA. A Review of Male Sexual Health and Dysfunction Following Surgical Treatment for Benign Prostatic Hyperplasia and Lower Urinary Tract Symptoms. Curr Urol Rep 2018; 19:66. [PMID: 29923036 DOI: 10.1007/s11934-018-0813-0] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
PURPOSE OF REVIEW Review how the various surgical treatments for benign prostatic hyperplasia and lower urinary tract symptoms impact on male sexual health and function. RECENT FINDINGS The interplay between benign prostatic hyperplasia and erectile function is complex, and the conditions seem linked. Most cavitating procedures to improve male voiding will degrade ejaculatory and possibly erectile function. Many of the newer minimally invasive therapies appear to preserve sexual function in the short term while sacrificing some of the voiding improvements realized with more complete removal of the prostate adenoma. Benign prostatic hyperplasia will affect the majority of men at some point in life, and surgical treatment remains an integral option for managing the associated urinary symptoms. These treatments are associated with variable rates of sexual side effects, including ejaculatory, erectile, and orgasmic dysfunction. As the impact of these treatment modalities on sexual dysfunction has become more widely acknowledged, there has been a rise in interest in modalities that minimize adverse sexual side effects. Recent studies have sought to further elucidate the relationship between surgical treatment of benign prostate hyperplasia and sexual outcomes, and a number of studies have demonstrated that treatment of benign prostate hyperplasia can actually result in improved sexual function for some patients. This work intends to review the proposed pathophysiology behind the sexual side effects resulting from the surgical treatment of benign prostate hyperplasia and review the literature regarding both established and emerging surgical techniques.
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Affiliation(s)
- Alex Borchert
- Vattikuti Urology Institute, Henry Ford Hospital, Henry Ford Health System, 2799 West Grand Boulevard, K9, Detroit, MI, 48202, USA
| | - David A Leavitt
- Vattikuti Urology Institute, Henry Ford Hospital, Henry Ford Health System, 2799 West Grand Boulevard, K9, Detroit, MI, 48202, USA.
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Helo S, Holland B, McVary KT. Convective Radiofrequency Water Vapor Thermal Therapy with Rezūm System. Curr Urol Rep 2018; 18:78. [PMID: 28780635 DOI: 10.1007/s11934-017-0728-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
PURPOSE Lower urinary tract symptoms (LUTS) secondary to benign prostatic hyperplasia (BPH) are amongst the most commonly treated conditions by urologists. Minimally invasive therapies for the treatment of BPH/LUTS have garnered increased interest as new technology has emerged, improving durability, efficacy, and safety. This paper reviews the most recent literature regarding water vapor therapy, a convective thermal therapy that ablates prostatic tissue. RECENT FINDINGS The current literature includes a pilot study of 65 men and a randomized controlled trial (RCT) of 197 men investigating the efficacy and safety profile of water vapor therapy up to 2 years. Subjects treated with water vapor therapy demonstrated a 51% reduction in IPSS from baseline, sustained at 24 months (p < 0.0001). Durable improvements in max flow rate (Qmax) and quality of life (QoL) were also achieved, while no changes in sexual function were observed. Reporting of adverse events (AEs) reveals predominantly Clavien grade I complications that were self-limited. The clinical efficacy and safety of water vapor therapy are durable to 24 months making it an attractive alternative for patients seeking a minimally invasive treatment for LUTS due to BPH.
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Affiliation(s)
- Sevann Helo
- Division of Urology, Southern Illinois University School of Medicine, St. John's Pavilion, 301 North Eighth St., P.O. Box 19665, Springfield, IL, 62794-9665, USA
| | - Bradley Holland
- Division of Urology, Southern Illinois University School of Medicine, St. John's Pavilion, 301 North Eighth St., P.O. Box 19665, Springfield, IL, 62794-9665, USA
| | - Kevin T McVary
- Division of Urology, Southern Illinois University School of Medicine, St. John's Pavilion, 301 North Eighth St., P.O. Box 19665, Springfield, IL, 62794-9665, USA.
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18
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Chin P, Robertson P. Medium-term efficacy of the prostatic urethral lift. Transl Androl Urol 2017; 6:S122-S132. [PMID: 28791231 PMCID: PMC5522795 DOI: 10.21037/tau.2017.04.10] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2016] [Accepted: 03/26/2017] [Indexed: 11/18/2022] Open
Abstract
Treatment options for patients with benign prostatic hyperplasia have traditionally revolved around pharmacotherapy or invasive surgery, both of which can negatively impact quality of life (QoL). The quest for a suitable minimally invasive surgical therapy as an alternative to long-term medication or conventional surgery, has seen the development of heat-based therapies, most of which have been dismissed because of post-operative complications and unacceptable re-treatment rates. During the late 1980s and 1990s, mechanical approaches such as transurethral balloon dilation and prostatic urethral stenting were investigated; however, re-treatment rates, encrustation and unacceptable migration rate of stents saw these options fall into disuse. In 2004, a new non-thermal, mechanical approach-the Prostatic Urethral Lift (PUL; UroLift®, NeoTract Inc., Pleasanton, CA, USA) was first investigated as a minimally invasive therapy for men with lower urinary tract symptoms (LUTS) secondary to BPH. A randomised "sham"-controlled clinical trial of PUL commenced enrolment in 2010. Results of 4-year follow-up have recently been published. This paper reviews these results, the latest literature on PUL and places them in perspective with regard to the proposed criteria for the optimal minimally invasive approach to treating LUTs in men with BPH.
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Affiliation(s)
- Peter Chin
- South Coast Urology, No. 1 Suttor place, Figtree 2525, New South Wales, Australia
| | - Peter Robertson
- South Coast Urology, No. 1 Suttor place, Figtree 2525, New South Wales, Australia
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Christidis D, McGrath S, Perera M, Manning T, Bolton D, Lawrentschuk N. Minimally invasive surgical therapies for benign prostatic hypertrophy: The rise in minimally invasive surgical therapies. Prostate Int 2017; 5:41-46. [PMID: 28593165 PMCID: PMC5448728 DOI: 10.1016/j.prnil.2017.01.007] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2017] [Revised: 01/11/2017] [Accepted: 01/12/2017] [Indexed: 11/27/2022] Open
Abstract
The prevalence of benign prostatic hypertrophy (BPH) causing bothersome lower urinary tract symptoms increases with our ageing population. Treatment of BPH traditionally begins with medical therapy and surgical intervention is then considered for those whose symptoms progress despite treatment. Minimally invasive surgical therapies have been developed as an intermediary in the treatment of BPH with the aim of decreasing the invasiveness of interventions. These therapies also aim to reduce morbidity and dysfunction related to invasive surgical procedures. Multiple treatment options exist in this group including mechanical and thermo-ablative strategies. Emerging therapies utilizing differing technologies range from the established to the experimental. We review the current literature related to these minimally invasive therapies and the evidence of their effectiveness in treating BPH. The role of minimally invasive surgical therapies in the treatment of BPH is still yet to be strongly defined. Given the experimental nature of many of the modalities, further study is required prior to their recommendation as alternatives to invasive surgical therapy. More mature evidence is required for the analysis of durability of effect of these therapies to make robust conclusions of their effectiveness.
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Affiliation(s)
- Daniel Christidis
- Department of Surgery, University of Melbourne, Austin Health, Melbourne, Australia
- Young Urology Researchers Organization (YURO), Melbourne, Australia
| | - Shannon McGrath
- Department of Surgery, University of Melbourne, Austin Health, Melbourne, Australia
- Young Urology Researchers Organization (YURO), Melbourne, Australia
| | - Marlon Perera
- Department of Surgery, University of Melbourne, Austin Health, Melbourne, Australia
- Young Urology Researchers Organization (YURO), Melbourne, Australia
| | - Todd Manning
- Department of Surgery, University of Melbourne, Austin Health, Melbourne, Australia
- Young Urology Researchers Organization (YURO), Melbourne, Australia
| | - Damien Bolton
- Department of Surgery, University of Melbourne, Austin Health, Melbourne, Australia
- Olivia Newton-John Cancer Research Institute, Heidelberg, Melbourne, Australia
| | - Nathan Lawrentschuk
- Department of Surgery, University of Melbourne, Austin Health, Melbourne, Australia
- Department of Surgical Oncology, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
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20
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Dixon CM, Cedano ER, Pacik D, Vit V, Varga G, Wagrell L, Larson TR, Mynderse LA. Two-year results after convective radiofrequency water vapor thermal therapy of symptomatic benign prostatic hyperplasia. Res Rep Urol 2016; 8:207-216. [PMID: 27921028 PMCID: PMC5123707 DOI: 10.2147/rru.s119596] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Objective The objective of this study was to assess the effectiveness and safety of convective radiofrequency (RF) water vapor thermal therapy in men with lower urinary tract symptoms (LUTS) associated with benign prostatic hyperplasia (BPH); a pilot study design with 2-year follow-up evaluations. Patients and methods Men aged ≥45 years with an International Prostate Symptom Score ≥13, a maximum urinary flow rate (Qmax) ≤15 mL/s, and prostate volume 20–120 cc were enrolled in a prospective, open-label pilot study using convective RF water vapor energy with the Rezūm System. Patients were followed up for 2 years after transurethral thermal treatment at 3 international centers in the Dominican Republic, Czech Republic, and Sweden. The transurethral thermal therapy utilizes radiofrequency to generate wet thermal energy in the form of water vapor injected through a rigid endoscope into the lateral lobes and median lobe as needed. Urinary symptom relief, urinary flow, quality of life (QOL) impact, sexual function, and adverse events (AEs) were assessed at 1 week, 1, 3, 6, 12, and 24 months. Results LUTS, flow rate, and QOL showed significant improvements from baseline; prostate volumes were appreciably reduced. Sexual function was maintained and no de novo erectile dysfunction occurred. The responses evident as early as 1 month after treatment remained consistent and durable over the 24 months of study. Early AEs were typically transient and mild to moderate; most were related to endoscopic instrumentation. No procedure related to late AEs were seen. Conclusion The Rezūm System convective RF thermal therapy is a minimally invasive treatment for BPH/LUTS which can be performed in the office or as an outpatient procedure with minimal associated perioperative AEs. It has no discernable effect on sexual function and provides significant improvement of LUTS that remain durable at 2 years.
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Affiliation(s)
- Christopher M Dixon
- Department of Urology, Phelps Memorial Hospital, Sleepy Hollow, New York, NY, USA
| | - Edwin Rijo Cedano
- Department of Urology, Clinical Canela, La Romana, Dominican Republic
| | - Dalibor Pacik
- Department of Urology, Brno University Hospital, Brno, Czech Republic
| | - Vítězslav Vit
- Department of Urology, Brno University Hospital, Brno, Czech Republic
| | - Gabriel Varga
- Department of Urology, Brno University Hospital, Brno, Czech Republic
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Nimeh T, Magnan B, Almallah YZ. Benign Prostatic Hyperplasia: Review of Modern Minimally Invasive Surgical Treatments. Semin Intervent Radiol 2016; 33:244-50. [PMID: 27582614 DOI: 10.1055/s-0036-1586148] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Tony Nimeh
- Department of Urology, University of Illinois at Chicago, Chicago, Illinois
| | - Brenden Magnan
- Department of Urology, University of Illinois at Chicago, Chicago, Illinois
| | - Y Zaki Almallah
- Department of Urology, University of Illinois at Chicago, Chicago, Illinois
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Revenig L, Leung A, Hsiao W. Ejaculatory physiology and pathophysiology: assessment and treatment in male infertility. Transl Androl Urol 2016; 3:41-9. [PMID: 26816751 PMCID: PMC4708301 DOI: 10.3978/j.issn.2223-4683.2014.02.02] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Azoospermia is a heterogeneous condition with multiple etiologies and a variety of treatments. In this chapter we present a summary of retrograde ejaculation and anejaculation, both of which are characterized by an absence of antegrade semen propulsion through the male reproductive tract. Each of these affects fertility, but is pathophysiologically distinct disorders with differing evaluation and treatment. Retrograde ejaculation has a myriad of well-characterized causes, from pharmacologic disruption to interference of neural mechanisms by surgical intervention for a variety of diseases. Medication is the mainstay of treatment, although only a minority responds and develops antegrade ejaculation. For the men who are not responders to medical therapy, but still have fertility goals, there are a variety of sperm retrieval techniques to assist their reproductive abilities. Failure of emission is characterized by an absence of the emission phase and no antegrade or retrograde expulsion of ejaculatory products. If fertility is desired, these men must rely on assisted ejaculatory procedures, and treatment choice is guided by etiology and response. Ultimately, retrograde ejaculation and failure of emission are in a spectrum of ejaculatory disorders which impair male fertility.
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Affiliation(s)
- Louis Revenig
- 1 Emory University, Department of Urology, Atlanta, Georgia, USA ; 2 Kaiser Permanente, Oakland Medical Center, Oakland, California, USA
| | - Andrew Leung
- 1 Emory University, Department of Urology, Atlanta, Georgia, USA ; 2 Kaiser Permanente, Oakland Medical Center, Oakland, California, USA
| | - Wayland Hsiao
- 1 Emory University, Department of Urology, Atlanta, Georgia, USA ; 2 Kaiser Permanente, Oakland Medical Center, Oakland, California, USA
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23
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Silva V, Grande AJ, Stanton KR, Peccin MS. Physical activity for lower urinary tract symptoms secondary to benign prostatic obstruction. Hippokratia 2016. [DOI: 10.1002/14651858.cd012044] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Valter Silva
- Universidade Federal de São Paulo; Department of Human Movement Sciences; Santos Brazil
| | - Antonio Jose Grande
- Universidade do Extremo Sul Catarinense; Laboratory of Evidence-Based Practice; Av. Universitária, 1105 Predio S, LABEPI Criciuma Santa Catarina Brazil 88806-000
| | | | - Maria S Peccin
- Universidade Federal de São Paulo; Department of Human Movement Sciences; Santos Brazil
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Bozkurt A, Karabakan M, Keskin E, Hirik E, Balci MBC, Nuhoglu B. Prostatic Urethral Lift: A New Minimally Invasive Treatment for Lower Urinary Tract Symptoms Secondary to Benign Prostatic Hyperplasia. Urol Int 2015; 96:202-6. [PMID: 26613256 DOI: 10.1159/000441850] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2015] [Accepted: 10/19/2015] [Indexed: 11/19/2022]
Abstract
INTRODUCTION Prostatic urethral lift (PUL) is a minimally invasive procedure for the treatment of lower urinary tract symptoms (LUTSs) secondary to benign prostatic hyperplasia (BPH). The PUL procedure involves the placement of implants that retract the obstructing prostate lobes. This procedure achieves quantifiable improvements in functional outcomes and quality of life (QoL), while preserving erectile and ejaculatory functions. METHODS Seventeen patients diagnosed with BPH who had undergone the UroLift® procedure between March 2011 and June 2015 were retrospectively evaluated. The parameters evaluated in the pre-operative, intra-operative and 1-year post-operative period were demographic data, and pre-operative, intra-operative and 1-year post-operative results were obtained from the International Prostate Symptom Score (IPSS), Uroflowmetry QoL index, International Index of Erectile Function (IIEF) and Male Sexual Health Questionnaire (MSHQ) for ejaculatory function (MSHQ-EjD). RESULTS The average improvements from baseline to 12 months after intervention were significant for the total IPSS 9.6. There was a 4.2-point increase in Qmax, a 0.9-point improvement in QoL and a 32% decrease in PVR. No statistically significant difference was found in the IIEF and MSHQ-EjD scores when the pre-operative and post-operative 3rd and 12th month scores were evaluated (p > 0.05). CONCLUSIONS PUL offers rapid improvement in voiding and storage symptoms, QoL and flow rate that is durable to 12 months after intervention. PUL is a minimally invasive procedure that has the moderate effect in treating troublesome LUTS secondary to benign prostatic obstruction and preserving total sexual function.
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Affiliation(s)
- Aliseydi Bozkurt
- Erzincan University, Mengucek Gazi Training and Research Hospital, Urology Department, Erzincan, Turkey
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Becher EF, McVary KT. Surgical Procedures for BPH/LUTS: Impact on Male Sexual Health. Sex Med Rev 2015; 2:47-55. [PMID: 27784543 DOI: 10.1002/smrj.20] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
INTRODUCTION Lower urinary tract symptoms (LUTS) because of benign prostatic hyperplasia (BPH) are a highly prevalent condition in men over 50 years old, and their incidence increases with age. The relationship between LUTS and erectile dysfunction (ED) has received increased attention recently because both diseases are highly prevalent, frequently co-associated in the same aging male group, and contribute significantly to the overall quality of life. In this review, we will examine the literature to assess the impact of surgical and minimally invasive treatments for LUTS/BPH on the male's sexual health. METHODS The impact of the various surgical and minimally invasive treatments for LUTS/BPH was reviewed to ascertain the impact on erectile and ejaculatory function. RESULTS Sexual side effects of treatment for LUTS/BPH are underappreciated by urologists but likely play a prominent role in patient decision making, creating a disparity between provider and patient. Almost all accepted therapies for LUTS (surgical or medical) can affect some aspect of sexual health, making it imperative that health-care professionals understand their patients' concerns and motivations in these two linked diseases. The incidence of newly diagnosed postoperative ED in patients treated with monopolar transurethral resection (TURP) is around 14%, with reported values in various studies ranging from 0-32.5%, 7.7%, 6.5%, 17%, to 14%. Importantly, there is no significant difference reported between bipolar and monopolar TURP on sexual function. CONCLUSION The risk of sexual side effects is an important one to consider in discussing the implications for any LUTS intervention as they play a prominent role in patient motivation, acceptance of bother and decision making concerning surgical intervention, thus creating a potential disparity between provider and patient. Becher EF and McVary KT. Surgical procedures for BPH/LUTS: Impact on male sexual health. Sex Med Rev 2014;2:47-55.
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Affiliation(s)
- Edgardo F Becher
- Division of Urology, Hospital de Clínicas "José de San Martín", University of Buenos Aires, Buenos Aires, Argentina.
| | - Kevin T McVary
- School of Medicine, Southern Illinois University Springfield, Springfield, IL, USA
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Eslamirad Z, Soleimani H, Hajihossein R, Rafiei F. Evaluation of lethal effect of microwave exposure on protoscolices of hydatid cyst in vitro. ASIAN PACIFIC JOURNAL OF TROPICAL DISEASE 2015. [DOI: 10.1016/s2222-1808(15)60938-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Aoun F, Marcelis Q, Roumeguère T. Minimally invasive devices for treating lower urinary tract symptoms in benign prostate hyperplasia: technology update. Res Rep Urol 2015; 7:125-36. [PMID: 26317083 PMCID: PMC4547646 DOI: 10.2147/rru.s55340] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Benign prostatic hyperplasia (BPH) represents a spectrum of related lower urinary tract symptoms (LUTS). The cost of currently recommended medications and the discontinuation rate due to side effects are significant drawbacks limiting their long-term use in clinical practice. Interventional procedures, considered as the definitive treatment for BPH, carry a significant risk of treatment-related complications in frail patients. These issues have contributed to the emergence of new approaches as alternative options to standard therapies. This paper reviews the recent literature regarding the experimental treatments under investigation and presents the currently available experimental devices and techniques used under local anesthesia for the treatment of LUTS/BPH in the vast majority of cases. Devices for delivery of thermal treatment (microwaves, radiofrequency, high-intensity focused ultrasound, and the Rezum system), mechanical devices (prostatic stent and urethral lift), fractionation of prostatic tissue (histotripsy and aquablation), prostate artery embolization, and intraprostatic drugs are discussed. Evidence for the safety, tolerability, and efficacy of these "minimally invasive procedures" is analyzed.
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Affiliation(s)
- Fouad Aoun
- Department of Urology, Jules Bordet Institute, Université Libre de Bruxelles, Brussels, Belgium
| | - Quentin Marcelis
- Department of Urology, Jules Bordet Institute, Université Libre de Bruxelles, Brussels, Belgium
- Department of Urology, Erasme Hospital, University Clinics of Brussels, Université Libre de Bruxelles, Brussels, Belgium
| | - Thierry Roumeguère
- Department of Urology, Erasme Hospital, University Clinics of Brussels, Université Libre de Bruxelles, Brussels, Belgium
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Popovics P, Schally AV, Block NL, Rick FG. Preclinical therapy of benign prostatic hyperplasia with neuropeptide hormone antagonists. World J Clin Urol 2014; 3:184-194. [DOI: 10.5410/wjcu.v3.i3.184] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/16/2014] [Revised: 06/26/2014] [Accepted: 07/29/2014] [Indexed: 02/06/2023] Open
Abstract
Benign prostatic hyperplasia (BPH) is a pathologic condition of the prostate described as a substantial increase in its number of epithelial and stromal cells. BPH may significantly reduce the quality of life due to the initiation of bladder outlet obstruction and lower urinary tract syndromes. Current medical therapies mostly consist of inhibitors of 5α-reductase or α1-adrenergic blockers; their efficacy is often insufficient. Antagonistic analogs of neuropeptide hormones are novel candidates for the management of BPH. At first, antagonists of luteinizing hormone-releasing hormone (LHRH) have been introduced to the therapy aimed to reduce serum testosterone levels. However, they have also been found to produce an inhibitory activity on local LHRH receptors in the prostate as well as impotence and other related side effects. Since then, several preclinical and clinical studies reported the favorable effects of LHRH antagonists in BPH. In contrast, antagonists of growth hormone-releasing hormone (GHRH) and gastrin-releasing peptide (GRP) have been tested only in preclinical settings and produce significant reduction in prostate size in experimental models of BPH. They act at least in part, by blocking the action of respective ligands produced locally on prostates through their respective receptors in the prostate, and by inhibition of autocrine insulin-like growth factors-I/II and epidermal growth factor production. GHRH and LHRH antagonists were also tested in combination resulting in a cumulative effect that was greater than that of each alone. This article will review the numerous studies that demonstrate the beneficial effects of antagonistic analogs of LHRH, GHRH and GRP in BPH, as well as suggesting a potential role for somatostatin analogs in experimental therapies.
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Hartley B. Older patient perioperative care as experienced via transurethral resection of the prostate (TURP). J Perioper Pract 2014; 24:135-40. [PMID: 25007475 DOI: 10.1177/175045891402400602] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
This reflective piece takes a holistic approach to an older patient having a transurethral resection of the prostate, commonly known as a TURP. It concentrates on the effects of age and likely comorbidities, and how the care given at each stage--preoperatively, anaesthetically, surgically and postoperatively--by the perioperative team can help to optimise the outcome for the patient. The article offers a critical appraisal of the best evidence available which supports the development of evidence based practitioners.
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Abstract
Benign prostatic hyperplasia (BPH) is a highly prevalent and costly condition that affects older men worldwide. Many affected men develop lower urinary tract symptoms, which can have a negative impact on their quality of life. In the past, transurethral resection of the prostate (TURP) was the mainstay of treatment. However, several efficacious drug treatments have been developed, which have transformed BPH from an acute surgical entity to a chronic medical condition. Specifically, multiple clinical trials have shown that α adrenoceptor antagonists can significantly ameliorate lower urinary tract symptoms. Moreover, 5α reductase inhibitors, alone or combined with an α adrenoceptor antagonist, can reverse the natural course of BPH, reducing the risk of urinary retention and the need for surgical intervention. Newer medical regimens including the use of antimuscarinic agents or phosphodiesterase type 5 inhibitors, have shown promise in men with predominantly storage symptoms and concomitant erectile dysfunction, respectively. For men who do not adequately respond to conservative measures or pharmacotherapy, minimally invasive surgical techniques (such as transurethral needle ablation, microwave thermotherapy, and prostatic urethral lift) may be of benefit, although they lack the durability of TURP. A variety of laser procedures have also been introduced, whose improved hemostatic properties abrogate many of the complications associated with traditional surgery.
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Affiliation(s)
- John M Hollingsworth
- Department of Urology, University of Michigan Medical School, Ann Arbor, MI, USA Center for Healthcare Outcomes and Policy, University of Michigan Medical School, Ann Arbor, MI, USA
| | - Timothy J Wilt
- Minneapolis VA Center for Chronic Diseases Outcomes Research, Minneapolis, MN 55417, USA University of Minnesota School of Medicine, Minneapolis, MN, USA
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Leoci R, Aiudi G, Silvestre F, Lissner E, Lacalandra GM. Effect of pulsed electromagnetic field therapy on prostate volume and vascularity in the treatment of benign prostatic hyperplasia: a pilot study in a canine model. Prostate 2014; 74:1132-41. [PMID: 24913937 PMCID: PMC4145661 DOI: 10.1002/pros.22829] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/24/2014] [Accepted: 05/02/2014] [Indexed: 11/07/2022]
Abstract
BACKGROUND Benign prostatic hyperplasia (BPH) is a result of urogenital aging. Recent studies suggest that an age-related impairment of the blood supply to the lower urinary tract plays a role in the development of BPH and thus may be a contributing factor in the pathogenesis of BPH. The canine prostate is a model for understanding abnormal growth of the human prostate gland. We studied the efficacy of pulsed electromagnetic field therapy (PEMF) in dogs to modify prostate blood flow and evaluated its effect on BPH. METHODS PEMF (5 min, twice a day for 3 weeks) was performed on 20 dogs affected by BPH. Prostatic volume, Doppler assessment by ultrasonography, libido, semen quality, testosterone levels, and seminal plasma volume, composition and pH were evaluated before and after treatment. RESULTS The 3 weeks of PEMF produced a significant reduction in prostatic volume (average 57%) without any interference with semen quality, testosterone levels or libido. Doppler parameters showed a reduction of peripheral resistances and a progressive reduction throughout the trial of the systolic peak velocity, end-diastolic velocity, mean velocity, mean, and peak gradient of the blood flow in the dorsal branch of the prostatic artery. The pulsatility index and the resistance index did not vary significantly over time. CONCLUSIONS The efficacy of PEMF on BPH in dogs, with no side effects, suggests the suitability of this treatment in humans and supports the hypothesis that impairment of blood supply to the lower urinary tract may be a causative factor in the development of BPH.
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Affiliation(s)
- Raffaella Leoci
- Department of Emergency and Organ Transplantation (DETO), Section of Veterinary Clinic and Animal Production, University of Bari Aldo MoroValenzano, Bari, Italy
- *Correspondence to: Raffaella Leoci, PhD, Department of Emergency and Organ Transplantation (DETO), Section of Veterinary Clinic and Animal Production, University of Bari Aldo Moro, SP per Casamassima km 3, Valenzano, Bari, Italy. E-mail:
| | - Giulio Aiudi
- Department of Emergency and Organ Transplantation (DETO), Section of Veterinary Clinic and Animal Production, University of Bari Aldo MoroValenzano, Bari, Italy
| | - Fabio Silvestre
- Department of Emergency and Organ Transplantation (DETO), Section of Veterinary Clinic and Animal Production, University of Bari Aldo MoroValenzano, Bari, Italy
| | | | - Giovanni Michele Lacalandra
- Department of Emergency and Organ Transplantation (DETO), Section of Veterinary Clinic and Animal Production, University of Bari Aldo MoroValenzano, Bari, Italy
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Utomo E, Groen J, Blok BFM. Surgical management of functional bladder outlet obstruction in adults with neurogenic bladder dysfunction. Cochrane Database Syst Rev 2014; 2014:CD004927. [PMID: 24859260 PMCID: PMC11162557 DOI: 10.1002/14651858.cd004927.pub4] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
BACKGROUND The most common type of functional bladder outlet obstruction in patients with neurogenic bladder is detrusor-sphincter dyssynergia (DSD). The lack of co-ordination between the bladder and the external urethral sphincter muscle (EUS) in DSD can result in poor bladder emptying and high bladder pressures, which may eventually lead to progressive renal damage. OBJECTIVES To assess the effectiveness of different surgical therapies for the treatment of functional bladder outlet obstruction (i.e. DSD) in adults with neurogenic bladder dysfunction. SEARCH METHODS We searched the Cochrane Incontinence Group Specialised Register, which contains trials identified from the Cochrane Central Register of Controlled Trials (CENTRAL), MEDLINE, MEDLINE In-Process, and handsearching of journals and conference proceedings (searched 20 February 2014), and the reference lists of relevant articles. SELECTION CRITERIA Randomised controlled trials (RCTs) or quasi-RCTs comparing a surgical treatment of DSD in adults suffering from neurogenic bladder dysfunction, with no treatment, placebo, non-surgical treatment, or other surgical treatment, alone or in combination. DATA COLLECTION AND ANALYSIS Two review authors independently assessed trial quality and extracted data. MAIN RESULTS We included five trials (total of 199 participants, average age of 40 years). The neurological diseases causing DSD were traumatic spinal cord injury (SCI), multiple sclerosis (MS), or congenital malformations.One trial compared placement of sphincteric stent prosthesis with sphincterotomy. For urodynamic measurements, results for postvoid residual urine volume (PVR) and cystometric bladder capacity were inconclusive and consistent with benefit of either sphincteric stent prosthesis or sphincterotomy at three, six, 12, and 24 months. Results for maximum detrusor pressure (Pdet.max) were also inconclusive at three, six, and 12 months; however, after two years, the Pdet.max after sphincterotomy was lower than after stent placement (mean difference (MD) -30 cmH2O, 95% confidence interval (CI) 8.99 to 51.01).Four trials considered botulinum A toxin (BTX-A) injection in the EUS, either alone or in combination with other treatments. The comparators included oral baclofen, oral alpha blocker, lidocaine, and placebo. The BTX-A trials all differed in protocols, and therefore we did not undertake meta-analysis. A single 100 units transperineal BTX-A injection (Botox®) in patients with MS resulted in higher voided urine volumes (MD 69 mL, 95% CI 11.87 to 126.13), lower pre-micturition detrusor pressure (MD -10 cmH2O, 95% CI -17.62 to -2.38), and lower Pdet.max (MD -14 cmH2O, 95% CI -25.32 to -2.68) after 30 days, compared to placebo injection. Results for PVR using catheterisation, basal detrusor pressure, maximal bladder capacity, maximal urinary flow, bladder compliance at functional bladder capacity, maximal urethral pressure, and closure urethral pressure at 30 days were inconclusive and consistent with benefit of either BTX-A injection or placebo injections. In participants with SCI, treatment with 200 units of Chinese manufactured BTX-A injected at eight different sites resulted in better bladder compliance (MD 7.5 mL/cmH2O, 95% CI -10.74 to -4.26) than participants who received the same injections with the addition of oral baclofen. Results for maximum uroflow rate, maximal cystometric capacity, and volume per voiding were inconclusive and consistent with benefit of either BTX-A injection or BTX-A injection with the addition of oral baclofen. However, the poor quality of reporting in this trial caused us to question the relevance of bladder compliance as an adequate outcome measure.In participants with DSD due to traumatic SCI, MS, or congenital malformation, the results for PVRs after one day were inconclusive and consistent with benefit of either a single 100 units transperineal BTX-A (Botox®) injection or lidocaine injection. However, after seven and 30 days of BTX-A injection, PVRs were lower (MD -163 and -158 mL, 95% CI -308.65 to -17.35 and 95% CI -277.57 to -39.03, respectively) compared to participants who received lidocaine injections. Results at one month for Pdet.max on voiding, EUS activity in electromyography, and maximal urethral pressure were inconclusive and consistent with benefit of either BTX-A or lidocaine injections.Finally, one small trial consisting of five men with SCI compared weekly BTX-A injections with normal saline as placebo. The placebo had no effect on DSD in the two participants allocated to the placebo treatment. Their urodynamic parameters were unchanged from baseline values until subsequent injections with BTX-A once a week for three weeks. These subsequent injections resulted in similar responses to those of the three participants who were allocated to the BTX-A treatment. Unfortunately, the report presented no data on placebo treatment.Only the trial that compared sphincterotomy with stent placement reported outcome measures renal function and urologic complications related to DSD. Results for renal function at 12 and 24 months, and urologic complications related to DSD at three, six, 12, and 24 months were inconclusive and consistent with benefit of either sphincteric stent prosthesis or sphincterotomy.Adverse effects reported were haematuria due to the cystoscopic injection and muscle weakness, of which the latter may be related to the BTX-A dose used.All trials had some methodological shortcomings, so insufficient information was available to permit judgement of risk of bias. At least half of the trials had an unclear risk of selection bias and reporting bias. One trial had a high risk of attrition bias, and another trial had a high risk of reporting bias. AUTHORS' CONCLUSIONS Results from small studies with a high risk of bias have identified evidence of limited quality that intraurethral BTX-A injections improve some urodynamic measures after 30 days in the treatment of functional bladder outlet obstruction in adults with neurogenic bladder dysfunction. The necessity of reinjection of BTX-A is a significant drawback; a sphincterotomy might therefore be a more effective treatment option for lowering bladder pressure in the long-term.However, because of the limited availability of eligible trials, this review was unable to provide robust evidence in favour of any of the surgical treatment options. More RCTs are needed, measuring improvement on quality of life, and on other types of surgical treatment options for DSD since these are lacking. Future RCTs assessing the effectiveness of BTX-A injections also need to address the uncertainty about the optimal dose and mode of injection for this specific type of urological condition.
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Affiliation(s)
- Elaine Utomo
- Erasmus Medical CenterDepartment of UrologyRoom Na‐1708's‐Gravendijkwal 230RotterdamZuid‐HollandNetherlands3015 CE
| | - Jan Groen
- Erasmus Medical CenterDepartment of UrologyRoom Na‐1708's‐Gravendijkwal 230RotterdamZuid‐HollandNetherlands3015 CE
| | - Bertil FM Blok
- Erasmus Medical CenterDepartment of UrologyRoom Na‐1708's‐Gravendijkwal 230RotterdamZuid‐HollandNetherlands3015 CE
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