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Laschena L, Messina E, Flammia RS, Borrelli A, Novelli S, Messineo D, Leonardo C, Sciarra A, Ciardi A, Catalano C, Panebianco V. What the urologist needs to know before radical prostatectomy: MRI effective support to pre-surgery planning. LA RADIOLOGIA MEDICA 2024; 129:1048-1061. [PMID: 38918291 PMCID: PMC11252184 DOI: 10.1007/s11547-024-01831-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2023] [Accepted: 05/23/2024] [Indexed: 06/27/2024]
Abstract
BACKGROUND Radical prostatectomy (RP) is recommended in case of localized or locally advanced prostate cancer (PCa), but it can lead to side effects, including urinary incontinence (UI) and erectile dysfunction (ED). Magnetic resonance imaging (MRI) is recommended for PCa diagnosis and staging, but it can also improve preoperative risk-stratification. PURPOSE This nonsystematic review aims to provide an overview on factors involved in RP side effects, highlighting anatomical and pathological aspects that could be included in a structured report. EVIDENCE SYNTHESIS Considering UI evaluation, MR can investigate membranous urethra length (MUL), prostate volume, the urethral sphincter complex, and the presence of prostate median lobe. Longer MUL measurement based on MRI is linked to a higher likelihood of achieving continence restoration. For ED assessment, MRI and diffusion tensor imaging identify the neurovascular bundle and they can aid in surgery planning. Finally, MRI can precisely describe extra-prostatic extension, prostate apex characteristics and lymph-node involvement, providing valuable preoperative information for PCa treatment. CONCLUSIONS Anatomical principals structures involved in RP side effects can be assessed with MR. A standardized MR report detailing these structures could assist urologists in planning optimal and tailored surgical techniques, reducing complications, and improving patients' care.
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Affiliation(s)
- Ludovica Laschena
- Department of Radiological Sciences, Oncology and Pathology, Sapienza University/Policlinico Umberto I, Viale del Policlinico 155, 00185, Rome, Italy
| | - Emanuele Messina
- Department of Radiological Sciences, Oncology and Pathology, Sapienza University/Policlinico Umberto I, Viale del Policlinico 155, 00185, Rome, Italy
| | - Rocco Simone Flammia
- Department of Surgery, Sapienza University/Policlinico Umberto I, Viale del Policlinico 155, 00185, Rome, Italy
- Uro-Oncology Unit, IFO IRCSS "Regina Elena" National Cancer Center Institute, Via Fermo Ognibene 23, 00144, Rome, Italy
| | - Antonella Borrelli
- Department of Radiological Sciences, Oncology and Pathology, Sapienza University/Policlinico Umberto I, Viale del Policlinico 155, 00185, Rome, Italy
| | - Simone Novelli
- Department of Mechanical and Aerospace Engineering, Sapienza University, Via Eudossiana 18, 00184, Rome, Italy
- Institute for Liver and Digestive Health, University College London/Royal Free Campus, Pond St, London, NW3 2QG, UK
| | - Daniela Messineo
- Department of Radiological Sciences, Oncology and Pathology, Sapienza University/Policlinico Umberto I, Viale del Policlinico 155, 00185, Rome, Italy
| | - Costantino Leonardo
- Uro-Oncology Unit, IFO IRCSS "Regina Elena" National Cancer Center Institute, Via Fermo Ognibene 23, 00144, Rome, Italy
| | - Alessandro Sciarra
- Department of Maternal-Infant and Urological Sciences, Sapienza University/Policlinico Umberto I, Viale del Policlinico 155, 00185, Rome, Italy
| | - Antonio Ciardi
- Department of Radiological Sciences, Oncology and Pathology, Sapienza University/Policlinico Umberto I, Viale del Policlinico 155, 00185, Rome, Italy
| | - Carlo Catalano
- Department of Radiological Sciences, Oncology and Pathology, Sapienza University/Policlinico Umberto I, Viale del Policlinico 155, 00185, Rome, Italy
| | - Valeria Panebianco
- Department of Radiological Sciences, Oncology and Pathology, Sapienza University/Policlinico Umberto I, Viale del Policlinico 155, 00185, Rome, Italy.
- Department of Radiological Sciences, Oncology and Pathology, Sapienza University of Rome, Viale Regina Elena 324, 00161, Rome, Italy.
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Spirito L, Chessa F, Hagman A, Lantz A, Celentano G, Sanchez-Salas R, La Rocca R, Olsson M, Akre O, Mirone V, Wiklund P. Long-Term Oncological Outcomes after Nerve-Sparing Robot-Assisted Radical Prostatectomy for High-Risk Localized Prostate Cancer: A Single-Center, Two-Arm Prospective Study. Diagnostics (Basel) 2024; 14:803. [PMID: 38667449 PMCID: PMC11049337 DOI: 10.3390/diagnostics14080803] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2024] [Revised: 04/02/2024] [Accepted: 04/08/2024] [Indexed: 04/28/2024] Open
Abstract
AIMS To compare the oncological outcomes of patients with high-risk localized prostate cancer undergoing nerve-sparing and non-nerve-sparing robot-assisted radical prostatectomy (RARP). METHODS Between November 2002 and December 2018, we prospectively recorded the data of patients undergoing RARP for high-risk localized prostate cancer (PCa) at our tertiary referral center. NSS (nerve-sparing surgery) was carefully offered on the basis of the preoperative clinical characteristics of the patients and an intraoperative assessment. The patients were stratified into two groups: nerve-sparing and non-nerve-sparing groups (yes/no). Radical prostatectomies were performed by 10 surgeons with a robot-assisted technique using a daVinci® surgical system. The primary oncological outcome evaluated was biochemical recurrence (BCR). The secondary oncological outcomes assessed were positive surgical margins (PSMs) and cancer-specific survival (CSS). RESULTS A total of 779 patients were included in the study: 429 (55.1%) underwent NSS while 350 (44.9%) underwent non-NSS. After a mean (±SD) follow-up of 192 (±14) months, 328 (42.1%) patients developed BCR; no significant difference was found between the NSS and non-NSS groups (156 vs. 172; p = 0.09). Both our univariable and multivariable analyses found that the nerve-sparing approach was not a predictor of BCR (p > 0.05). Kaplan-Mayer survival curves for BCR showed no significant difference among the non-NSS, unilateral NSS, and bilateral NSS groups (log rank test = 0.6). PSMs were reported after RARPs for 254 (32.6%) patients, with no significant difference between the NSS and non-NSS group (143 vs. 111; p = 0.5). In the subgroup of 15 patients who died during the follow-up period, mean (±SD) CSS was 70.5 (±26.1) months, with no significant difference between the NSS and non-NSS groups (mean CSS: 70.3 vs. 70.7 months). CONCLUSIONS NSS does not appear to negatively impact the oncological outcomes of patients with high-risk PCa. Randomized clinical trials are needed to confirm our promising findings.
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Affiliation(s)
- Lorenzo Spirito
- Urology Unit, Department of Neurosciences, Reproductive Sciences, and Odontostomatology, University of Naples “Federico II”, 80138 Naples, Italy; (L.S.); (R.L.R.); (V.M.)
| | - Francesco Chessa
- Division of Urology, IRCCS Azienda Ospedaliero-Universitaria di Bologna, 40138 Bologna, Italy
| | - Anna Hagman
- Department of Urology, Karolinska University Hospital, 171 64 Stockholm, Sweden; (A.H.); (A.L.); (R.S.-S.); (M.O.); (O.A.); (P.W.)
- Clinical Epidemiology Unit, Department of Medicine, Karolinska Institutet, 171 77 Stockholm, Sweden
| | - Anna Lantz
- Department of Urology, Karolinska University Hospital, 171 64 Stockholm, Sweden; (A.H.); (A.L.); (R.S.-S.); (M.O.); (O.A.); (P.W.)
- Clinical Epidemiology Unit, Department of Medicine, Karolinska Institutet, 171 77 Stockholm, Sweden
| | | | - Rodolfo Sanchez-Salas
- Department of Urology, Karolinska University Hospital, 171 64 Stockholm, Sweden; (A.H.); (A.L.); (R.S.-S.); (M.O.); (O.A.); (P.W.)
- Clinical Epidemiology Unit, Department of Medicine, Karolinska Institutet, 171 77 Stockholm, Sweden
| | - Roberto La Rocca
- Urology Unit, Department of Neurosciences, Reproductive Sciences, and Odontostomatology, University of Naples “Federico II”, 80138 Naples, Italy; (L.S.); (R.L.R.); (V.M.)
| | - Mats Olsson
- Department of Urology, Karolinska University Hospital, 171 64 Stockholm, Sweden; (A.H.); (A.L.); (R.S.-S.); (M.O.); (O.A.); (P.W.)
- Clinical Epidemiology Unit, Department of Medicine, Karolinska Institutet, 171 77 Stockholm, Sweden
| | - Olof Akre
- Department of Urology, Karolinska University Hospital, 171 64 Stockholm, Sweden; (A.H.); (A.L.); (R.S.-S.); (M.O.); (O.A.); (P.W.)
- Clinical Epidemiology Unit, Department of Medicine, Karolinska Institutet, 171 77 Stockholm, Sweden
| | - Vincenzo Mirone
- Urology Unit, Department of Neurosciences, Reproductive Sciences, and Odontostomatology, University of Naples “Federico II”, 80138 Naples, Italy; (L.S.); (R.L.R.); (V.M.)
| | - Peter Wiklund
- Department of Urology, Karolinska University Hospital, 171 64 Stockholm, Sweden; (A.H.); (A.L.); (R.S.-S.); (M.O.); (O.A.); (P.W.)
- Clinical Epidemiology Unit, Department of Medicine, Karolinska Institutet, 171 77 Stockholm, Sweden
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Tomalty D, Giovannetti O, Velikonja L, Munday J, Kaufmann M, Iaboni N, Jamzad A, Rubino R, Fichtinger G, Mousavi P, Nicol CJB, Rudan JF, Adams MA. Molecular characterization of human peripheral nerves using desorption electrospray ionization mass spectrometry imaging. J Anat 2023; 243:758-769. [PMID: 37264225 PMCID: PMC10557387 DOI: 10.1111/joa.13909] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Revised: 05/11/2023] [Accepted: 05/20/2023] [Indexed: 06/03/2023] Open
Abstract
Desorption electrospray ionization mass spectrometry imaging (DESI-MSI) is a molecular imaging method that can be used to elucidate the small-molecule composition of tissues and map their spatial information using two-dimensional ion images. This technique has been used to investigate the molecular profiles of variety of tissues, including within the central nervous system, specifically the brain and spinal cord. To our knowledge, this technique has yet to be applied to tissues of the peripheral nervous system (PNS). Data generated from such analyses are expected to advance the characterization of these structures. The study aimed to: (i) establish whether DESI-MSI can discriminate the molecular characteristics of peripheral nerves and distinguish them from surrounding tissues and (ii) assess whether different peripheral nerve subtypes are characterized by unique molecular profiles. Four different nerves for which are known to carry various nerve fiber types were harvested from a fresh cadaveric donor: mixed, motor and sensory (sciatic and femoral); cutaneous, sensory (sural); and autonomic (vagus). Tissue samples were harvested to include the nerve bundles in addition to surrounding connective tissue. Samples were flash-frozen, embedded in optimal cutting temperature compound in cross-section, and sectioned at 14 μm. Following DESI-MSI analysis, identical tissue sections were stained with hematoxylin and eosin. In this proof-of-concept study, a combination of multivariate and univariate statistical methods was used to evaluate molecular differences between the nerve and adjacent tissue and between nerve subtypes. The acquired mass spectral profiles of the peripheral nerve samples presented trends in ion abundances that seemed to be characteristic of nerve tissue and spatially corresponded to the associated histology of the tissue sections. Principal component analysis (PCA) supported the separation of the samples into distinct nerve and adjacent tissue classes. This classification was further supported by the K-means clustering analysis, which showed separation of the nerve and background ions. Differences in ion expression were confirmed using ANOVA which identified statistically significant differences in ion expression between the nerve subtypes. The PCA plot suggested some separation of the nerve subtypes into four classes which corresponded with the nerve types. This was supported by the K-means clustering. Some overlap in classes was noted in these two clustering analyses. This study provides emerging evidence that DESI-MSI is an effective tool for metabolomic profiling of peripheral nerves. Our results suggest that peripheral nerves have molecular profiles that are distinct from the surrounding connective tissues and that DESI-MSI may be able to discriminate between nerve subtypes. DESI-MSI of peripheral nerves may be a valuable technique that could be used to improve our understanding of peripheral nerve anatomy and physiology. The ability to utilize ambient mass spectrometry techniques in real time could also provide an unprecedented advantage for surgical decision making, including in nerve-sparing procedures in the future.
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Affiliation(s)
- Diane Tomalty
- Department of Biomedical and Molecular SciencesQueen's UniversityKingstonOntarioCanada
| | - Olivia Giovannetti
- Department of Biomedical and Molecular SciencesQueen's UniversityKingstonOntarioCanada
| | - Leah Velikonja
- Department of Biomedical and Molecular SciencesQueen's UniversityKingstonOntarioCanada
| | - Jasica Munday
- Department of Biomedical and Molecular SciencesQueen's UniversityKingstonOntarioCanada
| | - Martin Kaufmann
- Department of SurgeryQueen's UniversityKingstonOntarioCanada
- Gastrointestinal Diseases Research UnitKingston Health Sciences CenterKingstonOntarioCanada
| | - Natasha Iaboni
- Department of Pathology and Molecular MedicineQueen's UniversityKingstonOntarioCanada
| | - Amoon Jamzad
- School of ComputingQueen's UniversityKingstonOntarioCanada
| | - Rachel Rubino
- Division of Cancer Biology and GeneticsQueen's Cancer Research InstituteKingstonOntarioCanada
| | | | - Parvin Mousavi
- School of ComputingQueen's UniversityKingstonOntarioCanada
| | - Christopher J. B. Nicol
- Department of Pathology and Molecular MedicineQueen's UniversityKingstonOntarioCanada
- Division of Cancer Biology and GeneticsQueen's Cancer Research InstituteKingstonOntarioCanada
| | - John F. Rudan
- Department of SurgeryQueen's UniversityKingstonOntarioCanada
| | - Michael A. Adams
- Department of Biomedical and Molecular SciencesQueen's UniversityKingstonOntarioCanada
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Williams TR, Benjamin TGR, Schwartz MJ, Rastinehad AR. Narrative review-focal therapy: are we ready to change the prostate cancer treatment paradigm? ANNALS OF TRANSLATIONAL MEDICINE 2023; 11:24. [PMID: 36760247 PMCID: PMC9906217 DOI: 10.21037/atm-22-2337] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Accepted: 11/11/2022] [Indexed: 12/03/2022]
Abstract
Background and Objective Prostate cancer (PCa) has seen improved detection methods with a subsequent rise in disease prevalence, making novel prostate cancer treatment options an exciting yet controversial topic. Current treatment modalities encompass traditional approaches, namely surgery (radical prostatectomy) and radiation therapy. While heralded as a standard of care, these modalities may come with significant risk profiles, primarily sexual (erectile dysfunction) and urinary incontinence. Advances in technology and imaging, specifically multi-parametric MRI, have afforded great leaps in targeted focal therapy as a primary treatment option for localized PCa. This review identifies and highlights published data for novel and emerging PCa focal therapy (FT) modalities. Methods Our study identified and reviewed the current literature for relevant investigations related to primary FT modalities as they apply to the treatment of prostate cancer. After an internal review, relevant studies (published in English, between 2000-April 2022) were included for analysis and summarization. Key Content and Findings We provide a concise review of several novel focal therapy modalities that offer realistic potential for primary treatment of localized prostate cancer. Our narrative includes studies that primarily include their respective results, specifically focusing on those that reported both oncologic and quality-of-life outcomes after focal therapy. While still in its cumulative infancy, we discuss the current limitations, future directions, and advancements that hopefully push focal therapy into the limelight. Conclusions While many of the mentioned focal therapies for PCa have shown promising pathologic and quality of life outcomes, further clinical evidence is required to change overall management guidelines and recommendations. The advantages of FT in avoiding sexual and urinary side-effects of radical surgery or radiation are apparent; however, it is necessary to recognize the need for further long-term evidence that is durable over time and comparable to current gold-standard treatment options.
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Affiliation(s)
- Thomas R Williams
- The Smith Institute for Urology, Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Northwell Health, New York, NY, USA
| | - Tavya G R Benjamin
- The Smith Institute for Urology, Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Northwell Health, New York, NY, USA
| | - Michael J Schwartz
- The Smith Institute for Urology, Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Northwell Health, New York, NY, USA
| | - Ardeshir R Rastinehad
- The Smith Institute for Urology, Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Northwell Health, New York, NY, USA
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Tan MVN, Hoang NPC, Kha NT, Phuong DV, Tuan NT, Vinh TVA, Anh NVB, Vien NT. Optimizing Nerve Sparing in Robotic-Assisted Radical Prostatectomy: A Comparative Investigation of Traditional and Modified Endopelvic Fascia Preservation Techniques. Acta Inform Med 2023; 32:76-81. [PMID: 38585604 PMCID: PMC10997170 DOI: 10.5455/aim.2024.32.76-81] [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] [Received: 11/05/2023] [Accepted: 01/28/2024] [Indexed: 04/09/2024] Open
Abstract
Background Prostate cancer (PCa) is the second most common cancer and the sixth leading cause of cancer-related mortality in men. In 2000, Abbou performed the first robot-assisted radical prostatectomy, and radical prostatectomy has developed rapidly. Robot-assisted radical prostatectomy (RARP) is a valuable therapeutic option for the management of localized Pca. Objective To present the functional outcome of robot-assisted laparoscopic radical prostatectomy using traditional and modified endopelvic fascia preservation methods in a single center in Vietnam. Methods We prospectively analyzed a series of 65 patients diagnosed with prostate cancer from 2020 to 2023. All of those were operated by DaVinci Si system robot-assisted laparoscopic prostatectomy. Twenties patients were applied with a modified nerve-sparing technique, intrafascial dissection, and lateral prostatic fascia preservation, leaving the lateral tissue, including the neurovascular bundle, untouched and covered. We used the traditional approach, intrafascial nerve-sparing with open endopelvic fascia and lateral prostatic fascia in 45 cases. Patients were followed up to 12 months to assess the continence and erectile function by using IIEF-5 and EPIC questionnaires. Results The study sample included 65 cases; the mean patient age was 64.21 ± 6.68, erection rate after surgery at six months in bilateral NS was 36.58% (15/41) in the traditional group, and 68.42% (13/19) in the modified group (p=0.028). The patient did not recover erectile ability in the group of elderly patients (>65 years old) and unilateral nerve-sparing group. The continence rate six months after surgery was 86.66 % in the conventional group and 85% in the modified group, with no significant difference between the two groups. In the potency group, the IIEF-5 score was 13 ± 4.9, and the EPIC-26 score was 62.20 ± 10.04. Erectile ability in the modified group was better than the traditional group at six months after surgery. Conclusion Our results showed better potency recovery in the modified group. These results should be tested in future research with randomized studies.
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Affiliation(s)
- Mai Viet Nhat Tan
- Department of Urologic Oncology, Binh Dan hospital, Ho Chi Minh city, Vietnam
- Department of Surgery, Pham Ngoc Thach University of Medicine, Ho Chi Minh city, Vietnam
| | - Nguyen Phuc Cam Hoang
- Department of Urologic Oncology, Binh Dan hospital, Ho Chi Minh city, Vietnam
- Department of Urology, Pham Ngoc Thach University of Medicine, Ho Chi Minh City, Vietnam
| | - Nguyen Te Kha
- Department of Urologic Oncology, Binh Dan hospital, Ho Chi Minh city, Vietnam
| | - Do Vu Phuong
- Department of Urology, Pham Ngoc Thach University of Medicine, Ho Chi Minh City, Vietnam
| | - Nguyen Thanh Tuan
- Department of Urology, University of Medicine and Pharmacy at Ho Chi Minh City, Ho Chi Minh city, Vietnam
| | - Trang Vo Anh Vinh
- Department of Urologic Oncology, Binh Dan hospital, Ho Chi Minh city, Vietnam
| | | | - Nguyen Truong Vien
- Department of Public Health, Pham Ngoc Thach University of Medicine, Ho Chi Minh city, Vietnam
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Zhu A, Basourakos SP, Hu JC. Nerve-sparing Techniques During Robot-assisted Radical Prostatectomy: Clips. EUR UROL SUPPL 2022; 44:104-105. [PMID: 36093320 PMCID: PMC9450057 DOI: 10.1016/j.euros.2022.06.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/06/2022] [Indexed: 11/15/2022] Open
Affiliation(s)
| | | | - Jim C. Hu
- Corresponding author. Department of Urology, New York Presbyterian Hospital-Weill Cornell Medicine, 525 East 68th Street, New York, NY 10065, USA. Tel. +1 646 9629600; Fax: +1 646 9620715.
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Basourakos SP, Zhu A, Lewicki PJ, Ramaswamy A, Cheng E, Dudley V, Yu M, Karir B, Hung AJ, Khani F, Hu JC. Clipless Robotic-assisted Radical Prostatectomy and Impact on Outcomes. Eur Urol Focus 2022; 8:1176-1185. [PMID: 34246618 DOI: 10.1016/j.euf.2021.06.010] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Revised: 06/08/2021] [Accepted: 06/23/2021] [Indexed: 12/16/2022]
Abstract
BACKGROUND The use of surgical clips for athermal dissection of the lateral prostatic pedicles and ligation during pelvic lymph node dissection (PLND) while performing robotic-assisted radical prostatectomy (RARP) has been the gold standard. Clips are used to prevent thermal injury of the unmyelinated nerve fibers and lymphceles, respectively. OBJECTIVE To compare oncological and functional outcomes of a new technique of clipless, lateral pedicle control and PLND with RARP with bipolar energy (RARP-bi) versus the standard RARP technique with clips (RARP-c). DESIGN, SETTING, AND PARTICIPANTS A retrospective study was conducted among 338 men who underwent RARP between July 2018 and March 2020. SURGICAL PROCEDURE RARP-c versus RARP-bi. MEASUREMENTS We prospectively collected data and retrospectively compared demographic, clinicopathological, and functional outcome data. Urinary as well as sexual function was assessed using the Expanded Prostate Cancer Index for Clinical Practice, and complications were assessed using Clavien-Dindo grading. Multivariable regression modeling was used to examine whether the technical approach of RARP-bi versus RARP-c was associated with positive surgical margins (PSMs) or sexual and urinary function scores. RESULTS AND LIMITATIONS A total of 144 (43%) and 194 (57%) men underwent RARP-bi and RARP-c, respectively. Overall, there were no differences in functional and oncological outcomes between the two approaches. On multivariable regression analysis, the RARP-bi technique was not associated with significant differences in PSMs (odds ratio [OR] = 1.04, 95% confidence interval [CI] 0.6-1.8; p = 0.9), sexual function (OR = 0.4, 95% CI 0.1-1.5; p = 0.8), or urinary function (OR = 0.5, 95% CI 0.2-1.4; p = 0.2). The overall 30-d complication rates (12% vs 16%, p = 0.5) and bladder neck contracture rates (2.1% vs 3.6%, p = 0.5) were similar between the two groups. There was no difference in lymphocele complications (1.4% vs 0.52%, p = 0.58). All complications were of Clavien-Dindo grade I-II. CONCLUSIONS Despite the concerns for an increased risk of nerve injury secondary to the use of bipolar energy for prostatic pedicle dissection, we demonstrate that this technique is oncologically and functionally similar to the standard approach with surgical clips. There was no difference in complications or lymphocele formation for techniques with versus without clips. PATIENT SUMMARY We describe a modified technique for prostatic pedicle dissection during robotic-assisted radical prostatectomy, which utilizes bipolar energy and is associated with shorter operative time, without compromising functional or oncological outcomes.
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Affiliation(s)
- Spyridon P Basourakos
- Department of Urology, New York Presbyterian Hospital, Weill Cornell Medicine, New York, NY, USA
| | - Alec Zhu
- Department of Urology, New York Presbyterian Hospital, Weill Cornell Medicine, New York, NY, USA
| | - Patrick J Lewicki
- Department of Urology, New York Presbyterian Hospital, Weill Cornell Medicine, New York, NY, USA
| | - Ashwin Ramaswamy
- Department of Urology, New York Presbyterian Hospital, Weill Cornell Medicine, New York, NY, USA
| | - Emily Cheng
- Department of Urology, New York Presbyterian Hospital, Weill Cornell Medicine, New York, NY, USA
| | - Vanessa Dudley
- Department of Urology, New York Presbyterian Hospital, Weill Cornell Medicine, New York, NY, USA
| | - Miko Yu
- Department of Urology, New York Presbyterian Hospital, Weill Cornell Medicine, New York, NY, USA
| | - Beerinder Karir
- Department of Pathology and Laboratory Medicine, New York Presbyterian Hospital, Weill Cornell Medicine, New York, NY, USA
| | - Andrew J Hung
- Department of Urology, University of Southern California Institute of Urology, Los Angeles, CA, USA
| | - Francesca Khani
- Department of Pathology and Laboratory Medicine, New York Presbyterian Hospital, Weill Cornell Medicine, New York, NY, USA
| | - Jim C Hu
- Department of Urology, New York Presbyterian Hospital, Weill Cornell Medicine, New York, NY, USA.
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Benjamin TGR, Williams TR, Zhang B, Schwartz MJ, Rastinehad AR. Alternatives to whole gland treatment for localized prostate cancer: a review of novel focal therapies. Curr Opin Urol 2022; 32:239-247. [PMID: 35552305 DOI: 10.1097/mou.0000000000000981] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
PURPOSE OF REVIEW The mainstays of the management of clinically localized prostate cancer have historically rested upon active surveillance, radiation therapy, or radical prostatectomy. Although both radiation and surgical treatment of localized prostate cancer can achieve excellent oncologic outcomes, the subsequent potential adverse effects of urinary stress incontinence and erectile dysfunction are unappealing to patients. This has led to investigational studies centered upon focal treatment of the cancerous lesion, with the aim to improve quality-of-life outcomes. In this review, we describe numerous novel modalities, including nanoparticle ablation and irreversible electroporation, which are being utilized for the focal treatment of clinically localized prostate cancer. RECENT FINDINGS Although many of these novel therapies are in their investigational infancy, several have revealed very promising results both in their post-treatment pathologic outcomes as well as objective quality-of-life measures. SUMMARY Initial data regarding novel focal therapy for prostate cancer treatment show promising short-term outcomes in regards to oncologic and quality-of-life assessments. Further investigational studies are needed to determine inclusion criteria for the selection of optimal candidates.
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Affiliation(s)
- Tavya G R Benjamin
- The Smith Institute for Urology, Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Northwell Health, New York, New York, USA
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Kyriazis I, Spinos T, Tsaturyan A, Kallidonis P, Stolzenburg JU, Liatsikos E. Different Nerve-Sparing Techniques during Radical Prostatectomy and Their Impact on Functional Outcomes. Cancers (Basel) 2022; 14:cancers14071601. [PMID: 35406373 PMCID: PMC8996922 DOI: 10.3390/cancers14071601] [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] [Received: 02/08/2022] [Revised: 03/14/2022] [Accepted: 03/17/2022] [Indexed: 11/16/2022] Open
Abstract
Simple Summary Optimum preservation of potency and continence after radical prostatectomy (RP) are equally important surgical endpoints as cancer control itself. Nerve-sparing technique during RP has a major impact to both oncological and functional outcomes of the procedure and various different techniques have been developed aiming to optimize its outcomes. This literature review aims to summarize all different nerve-sparing techniques applied during RP from its first description from Patrick C. Walsh to its newer trends. The review underlines that optimum nerve-sparing expands far beyond recognising and preserving the anatomical integrity of the neurovascular bundles. It also emphasises that nerve-sparing is a field under constant development, with new technologies entering continuously the nerve-sparing field corresponding to the evolving open, laparoscopic and robotic-assisted RP approaches. Abstract The purpose of this narrative review is to describe the different nerve-sparing techniques applied during radical prostatectomy and document their functional impact on postoperative outcomes. We performed a PubMed search of the literature using the keywords “nerve-sparing”, “techniques”, “prostatectomy” and “outcomes”. Other potentially eligible studies were retrieved using the reference list of the included studies. Nerve-sparing techniques can be distinguished based on the fascial planes of dissection (intrafascial, interfascial or extrafascial), the direction of dissection (retrograde or antegrade), the timing of the neurovascular bundle dissection off the prostate (early vs. late release), the use of cautery, the application of traction and the number of the neurovascular bundles which are preserved. Despite this rough categorisation, many techniques have been developed which cannot be integrated in one of the categories described above. Moreover, emerging technologies have entered the nerve-sparing field, making its future even more promising. Bilateral nerve-sparing of maximal extent, athermal dissection of the neurovascular bundles with avoidance of traction and utilization of the correct planes remain the basic principles for achieving optimum functional outcomes. Given that potency and continence outcomes after radical prostatectomy are multifactorial endpoints in addition to the difficulty in their postoperative assessment and the well-documented discrepancy existing in their definition, safe conclusions about the superiority of one technique over the other cannot be easily drawn. Further studies, comparing the different nerve-sparing techniques, are necessary.
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Affiliation(s)
- Iason Kyriazis
- Department of Urology, University of Patras, 26504 Patras, Greece; (I.K.); (T.S.); (A.T.); (P.K.)
| | - Theodoros Spinos
- Department of Urology, University of Patras, 26504 Patras, Greece; (I.K.); (T.S.); (A.T.); (P.K.)
| | - Arman Tsaturyan
- Department of Urology, University of Patras, 26504 Patras, Greece; (I.K.); (T.S.); (A.T.); (P.K.)
| | - Panagiotis Kallidonis
- Department of Urology, University of Patras, 26504 Patras, Greece; (I.K.); (T.S.); (A.T.); (P.K.)
| | | | - Evangelos Liatsikos
- Department of Urology, University of Patras, 26504 Patras, Greece; (I.K.); (T.S.); (A.T.); (P.K.)
- Department of Urology, Medical University of Vienna, 1090 Vienna, Austria
- Institute for Urology and Reproductive Health, Sechenov University, 119435 Moscow, Russia
- Correspondence: ; Tel.: +30-2610-999-386
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10
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De Novo Detrusor Underactivity and Other Urodynamic Findings after Radical Prostatectomy: A Systematic Review. Medicina (B Aires) 2022; 58:medicina58030381. [PMID: 35334557 PMCID: PMC8949898 DOI: 10.3390/medicina58030381] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2022] [Revised: 02/28/2022] [Accepted: 03/01/2022] [Indexed: 11/17/2022] Open
Abstract
Background and objectives: The aim of this systematic review is to evaluate the impact of radical prostatectomy (RP) on bladder function, with special attention towards detrusor underactivity investigated with the means of urodynamic evaluation. Materials and Methods: The review was performed in accordance with the PRISMA statement and was registered in the PROSPERO (ID#: CRD42020223480). The studied population was limited to men with prostate cancer who underwent urodynamic study prior to and after radical prostatectomy. Eight hundred twenty-seven studies were screened, with twenty-five finally included. A qualitative analysis was performed. Rates of detrusor underactivity (DU) before surgery were reported in eight studies and ranged from 1.6% to 75% (median of 40.8%). DU occurred de novo after RP in 9.1% to 37% of patients (median of 29.1%). On the other hand, preexisting DU resolved in 7% to 35.5% of affected men. Detrusor overactivity (DO) was the most frequently reported outcome, being assessed in 23 studies. The rate of DO preoperatively was from 5% to 76% (median of 25%). De novo was reported in 2.3–54.4% of patients (median of 15%) and resolved after RP in 19.6% to 87.5% (median of 33%) of affected patients. Baseline rates of bladder outlet obstruction (BOO) varied between studies from 19% to 59.3%, with a median of 27.8%. The most pronounced change after surgery was the resolution of BOO in 88% to 93.8% (median of 92%) of affected patients. Results: Rates of de novo impaired bladder compliance (IBC) varied from 3.2% to 41.3% (median of 13.3%), whereas the resolution of IBC was reported with rates ranging from 0% to 47% (median of 4.8%). Conclusions: BOO, DO, and DU are frequently diagnosed in men scheduled for RP. BOO is improved after RP in most patients; however, there is still a substantial rate of patients with de novo DU as well as DO which may impair functional outcomes and quality of life.
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11
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Basourakos SP, Kowalczyk K, Moschovas MC, Dudley V, Hung AJ, Shoag JE, Patel V, Hu JC. Robot-Assisted Radical Prostatectomy Maneuvers to Attenuate Erectile Dysfunction: Technical Description and Video Compilation. J Endourol 2021; 35:1601-1609. [PMID: 34015959 PMCID: PMC8820193 DOI: 10.1089/end.2021.0081] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Erectile dysfunction (ED) remains a significant problem in up to 63% of men after robot-assisted radical prostatectomy (RARP). After the discovery of the neurovascular bundle (NVB), additional anatomic description and variation in nerve-sparing (NS) techniques have been described to improve post-RARP ED. However, it remains questionable whether ED rates have improved over time, and this is concerning as competing treatments are introduced that have better ED outcomes. In this review, we describe RARP NS technical modifications that improve erectile function recovery. We focused on reports that included detailed anatomical descriptions as well as video illustrations to disseminate technique. We found that the alternative RARP NS surgical techniques provide better outcomes compared with standard NS RARP. The use of validated quality of life questionnaires is necessary for the appropriate comparison of outcomes. However, the retrospective character and inherent weaknesses of the included studies do not allow one to conclude which is the best NS approach. Overall, there is significant variation in RARP NS techniques and outcomes, and the ideal technical maneuvers to optimize outcomes remains subject to debate. However, there is a consensus on the importance of anatomically dissecting the NVB, minimizing traction and thermal injury as well as preserving the periprostatic fascia. Well-designed randomized controlled trials with videos describing details of different surgical techniques for generalizability are needed to consistently and objectively evaluate sexual function outcomes after RARP to optimize postoperative potency.
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Affiliation(s)
- Spyridon P. Basourakos
- Department of Urology, New York Presbyterian Hospital, Weill Cornell Medicine, New York, New York, USA
| | - Keith Kowalczyk
- Department of Urology, MedStar Georgetown University Hospital, Lombardi Cancer Center, Washington, District of Columbia, USA
| | | | - Vanessa Dudley
- Department of Urology, New York Presbyterian Hospital, Weill Cornell Medicine, New York, New York, USA
| | - Andrew J Hung
- Center for Robotic Simulation & Education, Catherine & Joseph Aresty Department of Urology, University of Southern California Institute of Urology, Los Angeles, California, USA
| | - Jonathan E. Shoag
- Department of Urology, New York Presbyterian Hospital, Weill Cornell Medicine, New York, New York, USA.,Department of Urology, Case Western University Hospital, Cleveland, Ohio, USA
| | - Vipul Patel
- AdventHealth Global Robotics Institute, Celebration, Florida, USA
| | - Jim C. Hu
- Department of Urology, New York Presbyterian Hospital, Weill Cornell Medicine, New York, New York, USA.,Address correspondence to: Jim C. Hu, MD, Department of Urology, New York Presbyterian Hospital-Weill Cornell Medicine, 525 East 68th Street, Starr 900, New York, NY 10021, USA
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12
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Keshav N, Ehrhart MD, Eberhardt SC, Terrazas MF. Local Staging of Prostate Cancer with Multiparametric MRI. Semin Roentgenol 2021; 56:366-375. [PMID: 34688339 DOI: 10.1053/j.ro.2021.09.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Revised: 09/06/2021] [Accepted: 09/09/2021] [Indexed: 11/11/2022]
Affiliation(s)
- Nandan Keshav
- Department of Radiology, University of New Mexico Health Sciences Center, Albuquerque, NM
| | - Mark D Ehrhart
- Department of Radiology, University of New Mexico Health Sciences Center, Albuquerque, NM
| | - Steven C Eberhardt
- Department of Radiology, University of New Mexico Health Sciences Center, Albuquerque, NM.
| | - Martha F Terrazas
- Department of Radiology, University of New Mexico Health Sciences Center, Albuquerque, NM
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13
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Yang CW, Wang HH, Hassouna MF, Chand M, Huang WJS, Chung HJ. Prediction of a positive surgical margin and biochemical recurrence after robot-assisted radical prostatectomy. Sci Rep 2021; 11:14329. [PMID: 34253832 PMCID: PMC8275750 DOI: 10.1038/s41598-021-93860-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Accepted: 06/14/2021] [Indexed: 02/06/2023] Open
Abstract
The positive surgical margin (PSM) and biochemical recurrence (BCR) are two main factors associated with poor oncotherapeutic outcomes after prostatectomy. This is an Asian population study based on a single-surgeon experience to deeply investigate the predictors for PSM and BCR. We retrospectively included 419 robot-assisted radical prostatectomy cases. The number of PSM cases was 126 (30.1%), stratified as 22 (12.2%) in stage T2 and 103 (43.6%) in stage T3. Preoperative prostate-specific antigen (PSA) > 10 ng/mL (p = 0.047; odds ratio [OR] 1.712), intraoperative blood loss > 200 mL (p = 0.006; OR 4.01), and postoperative pT3 stage (p < 0.001; OR 6.901) were three independent predictors for PSM while PSA > 10 ng/mL (p < 0.015; hazard ratio [HR] 1.8), pT3 stage (p = 0.012; HR 2.264), International Society of Urological Pathology (ISUP) grade > 3 (p = 0.02; HR 1.964), and PSM (p = 0.027; HR 1.725) were four significant predictors for BCR in multivariable analysis. PSMs occurred mostly in the posterolateral regions (73.8%) which were associated with nerve-sparing procedures (p = 0.012) while apical PSMs were correlated intraoperative bleeding (p < 0.001). A high ratio of pT3 stage after RARP in our Asian population-based might surpass the influence of PSM on BCR. PSM was less significant than PSA and ISUP grade for predicting PSA recurrence in pT3 disease. Among PSM cases, unifocal and multifocal positive margins had a similar ratio of the BCR rate (p = 0.172) but ISUP grade > 3 (p = 0.002; HR 2.689) was a significant BCR predictor. These results indicate that PSA and pathological status are key factors influencing PSM and BCR.
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Affiliation(s)
- Ching-Wei Yang
- Department of Urology, Cheng-Hsin General Hospital, No. 45, Cheng-Hsin St., Beitou Dist., Taipei, 112, Taiwan
- Department of Urology, College of Medicine and Shu-Tien Urological Research Center, National Yang Ming Chiao Tung University, No.155, Sec.2, Linong Street, Taipei, 112, Taiwan
- Wellcome EPSRC Centre for Interventional and Surgical Sciences (WEISS), University College London, 43-45 Foley Street, London, W1W 7JN, UK
| | - Hsiao-Hsien Wang
- Department of Urology, Cheng-Hsin General Hospital, No. 45, Cheng-Hsin St., Beitou Dist., Taipei, 112, Taiwan
| | - Mohamed Fayez Hassouna
- Wellcome EPSRC Centre for Interventional and Surgical Sciences (WEISS), University College London, 43-45 Foley Street, London, W1W 7JN, UK
- Division of Surgical and Interventional Sciences, Charles Bell House, 43-45 Foley St, Fitzrovia, London, W1W 7TY, UK
| | - Manish Chand
- Wellcome EPSRC Centre for Interventional and Surgical Sciences (WEISS), University College London, 43-45 Foley Street, London, W1W 7JN, UK
- Department of Colorectal Surgery, University College London Hospital, 250 Euston Road, London, NW1 2BU, UK
| | - William J S Huang
- Department of Urology, College of Medicine and Shu-Tien Urological Research Center, National Yang Ming Chiao Tung University, No.155, Sec.2, Linong Street, Taipei, 112, Taiwan
- Department of Urology, Taipei Veterans General Hospital, 201, Sec 2, Shih-Pai Rd., Beitou Dist., Taipei, 112, Taiwan
| | - Hsiao-Jen Chung
- Department of Urology, College of Medicine and Shu-Tien Urological Research Center, National Yang Ming Chiao Tung University, No.155, Sec.2, Linong Street, Taipei, 112, Taiwan.
- Department of Urology, Taipei Veterans General Hospital, 201, Sec 2, Shih-Pai Rd., Beitou Dist., Taipei, 112, Taiwan.
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14
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Sigorski D, Gulczyński J, Sejda A, Rogowski W, Iżycka-Świeszewska E. Investigation of Neural Microenvironment in Prostate Cancer in Context of Neural Density, Perineural Invasion, and Neuroendocrine Profile of Tumors. Front Oncol 2021; 11:710899. [PMID: 34277455 PMCID: PMC8281889 DOI: 10.3389/fonc.2021.710899] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Accepted: 06/21/2021] [Indexed: 12/20/2022] Open
Abstract
Background Cancer stroma contains the neural compartment with specific components and action. Neural microenvironment processing includes among others axonogenesis, perineural invasion (PNI), neurosignaling, and tumor cell neural/neuroendocrine differentiation. Growing data suggest that tumor-neural crosstalk plays an important function in prostate cancer (PCa) biology. However, the mechanisms involved in PNI and axonogenesis, as well as their patho-clinical correlations in this tumor are unclear. Methods The present study was carried out on FFPE samples of 73 PCa and 15 benign prostate (BP) cases. Immunohistochemistry with neural markers PGP9.5, TH, and NFP was performed on constructed TMAs and selected tissue sections. The analyzed parameters of tumor innervation included small nerve density (ND) measured on pan-neural marker (PGP9.5) and TH s4tained slides, as well assessment of PNI presence and morphology. The qualitative and topographic aspects were studied. In addition, the expression of neuroendocrine marker chromogranin and NPY was assessed with dedicated indexes. The correlations of the above parameters with basic patho-clinical data such as patients’ age, tumor stage, grade, angioinvasion, and ERG status were examined. Results The study showed that innervation parameters differed between cancer and BP. The neural network in PCa revealed heterogeneity, and ND PGP9.5 in tumor was significantly lower than in its periphery. The density of sympathetic TH-positive fibers and its proportion to all fibers was lower in cancer than in the periphery and BP samples. Perineural invasion was confirmed in 76% of cases, usually multifocally, occurring more commonly in tumors with a higher grade. NPY expression in PCa cells was common with its intensity often rising towards PNI. ERG+ tumors showed higher ND, more frequent PNI, and a higher stage. Moreover, chromogranin-positive cells were more pronounced in PCa with higher NPY expression. Conclusions The analysis showed an irregular axonal network in prostate cancer with higher neural density (panneural and adrenergic) in the surroundings and the invasive front. ND and PNI interrelated with NPY expression, neuroendocrine differentiation, and ERG status. The above findings support new evidence for the presence of autocrine and paracrine interactions in prostate cancer neural microenvironment.
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Affiliation(s)
- Dawid Sigorski
- Department of Oncology, Collegium Medicum, University of Warmia and Mazury, Olsztyn, Poland.,Department of Oncology and Immuno-Oncology, Warmian-Masurian Cancer Center of the Ministry of the Interior and Administration Hospital, Olsztyn, Poland
| | - Jacek Gulczyński
- Department of Pathology and Neuropathology, Medical University of Gdańsk, Gdańsk, Poland.,Department of Pathomorphology, Copernicus Hospital, Gdańsk, Poland
| | - Aleksandra Sejda
- Department of Pathomorphology, Collegium Medicum, University of Warmia and Mazury, Olsztyn, Poland
| | - Wojciech Rogowski
- Department of Health, Pomeranian University in Słupsk, Słupsk, Poland.,Department of Oncology, Chemotherapy, Clinical trials, Regional Hospital, Słupsk, Poland
| | - Ewa Iżycka-Świeszewska
- Department of Pathology and Neuropathology, Medical University of Gdańsk, Gdańsk, Poland.,Department of Pathomorphology, Copernicus Hospital, Gdańsk, Poland
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15
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Chang X, Cao G, Pu J, Li S, Zhang X, Tang ST. Robot-assisted anorectal pull-through for anorectal malformations with rectourethral and rectovesical fistula: feasibility and short-term outcome. Surg Endosc 2021; 36:1910-1915. [PMID: 33877410 DOI: 10.1007/s00464-021-08473-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Accepted: 03/26/2021] [Indexed: 11/29/2022]
Abstract
BACKGROUND Multiple structures in the anorectal area are closely related to defecation, voiding and sexual function. Although laparoscopic-assisted anorectal pull-through is widely accepted as a minimally invasive surgical technique, controversy still exists for ARMs with rectourethral fistulas. Intraoperative injuries more or less involve the perirectal sphincters and neurovascular tissue. METHODS Seventeen selected infants with ARMs underwent robot-assisted anorectal pull-through (RAARP) between October 2016 and January 2018. The application of nerve- and sphincter-sparing technique in RAARP was detailed. The feasibility and early outcomes were evaluated. RESULTS All procedures were completed without conversion. The robotic system facilitated clear dissections between different anatomical layers. Under direct vision, the fistula was easier to repair, and the rectal pouch was precisely placed in the center of the striated muscle complex. During the follow-up of 11.6 months, 13 patients resumed normal defecation. The other four children experienced mild constipation or fecal incontinence. Their continence and defecation functions showed favorable evolution. CONCLUSION RAARP is a safe and effective alternative for the treatment of ARMs, which provides an advantage in further minimizing the injury to perirectal nerves and sphincters.
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Affiliation(s)
- Xiaopan Chang
- Department of Pediatric Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Guoqing Cao
- Department of Pediatric Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Jiarui Pu
- Department of Pediatric Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Shuai Li
- Department of Pediatric Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Xi Zhang
- Department of Pediatric Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Shao-Tao Tang
- Department of Pediatric Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China.
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Covas Moschovas M, Chew C, Bhat S, Sandri M, Rogers T, Dell'Oglio P, Roof S, Reddy S, Sighinolfi MC, Rocco B, Patel V. Association Between Oncotype DX Genomic Prostate Score and Adverse Tumor Pathology After Radical Prostatectomy. Eur Urol Focus 2021; 8:418-424. [PMID: 33757735 DOI: 10.1016/j.euf.2021.03.015] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Revised: 02/04/2021] [Accepted: 03/09/2021] [Indexed: 12/26/2022]
Abstract
BACKGROUND The Oncotype DX assay is a clinically validated 17-gene genomic assay that provides a genomic prostate score (GPS; scale 0-100) measuring the heterogeneous nature of prostate tumors. The test is performed on prostate tissue collected during biopsy. There is a lack of data on the association between the GPS and tumor pathology after radical prostatectomy (RP). OBJECTIVE To investigate the association between GPS and final pathology, including extraprostatic extension (EPE), positive surgical margin (PSM), and seminal vesicle invasion (SVI). DESIGN, SETTING, AND PARTICIPANTS Data for the 749 patients who underwent Oncotype DX assay and RP at a referral prostate cancer center between 2015 and 2019 were retrospectively assessed to evaluate the association between GPS and unfavorable pathology parameters. INTERVENTION After a GPS genetic test, patients underwent robotic RP performed by the same surgeon. OUTCOME MEASUREMENTS AND STATISTICAL ANALYSIS Multivariable logistic regression analyses were performed to assess the association between GPS and EPE, PSM, and SVI. The models were adjusted for age, clinical stage, prostate-specific antigen (PSA) level, Gleason score, and time between the genomic assay and surgery. The median time between Oncotype DX assay and surgery was 176 d (interquartile range [IQR] 141-226). The median age was 63 yr (IQR 58-68), median GPS was 29 (IQR 21-39), and median PSA was 5.7 ng/ml (IQR 4.6-7.7). In multivariable analyses assessing the odds ratio (OR) per 20-point change in GPS, GPS was an independent predictor of EPE (OR 1.8, 95% confidence interval [CI] 1.4-2.3) and SVI (OR 2.1, 95% CI 1.3-3.4). In addition, when patients were grouped by GPS quartile, the percentage of cases with EPE and SVI increased with the GPS quartile. CONCLUSIONS We provide evidence that the Oncotype DX GPS is significantly associated with adverse pathology after RP. Specifically, the risk of EPE and SVI increases with the GPS. Therefore, use of the Oncotype DX GPS may help clinicians to improve preoperative patient counseling and develop surgical strategies for patients with a higher chance of EPE or unfavorable pathological features. PATIENT SUMMARY We studied whether the score for a prostate genetic test was associated with prostate cancer pathology findings for patients who had their prostate removed. We found that the risk of prostate cancer spread outside the gland and to the seminal vesicle increases with higher test scores. These findings may help surgeons in counseling patients on surgical options for prostate cancer.
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Affiliation(s)
| | - Christopher Chew
- University of North Carolina School of Medicine, Chapel Hill, NC, USA
| | - Seetharam Bhat
- AdventHealth Global Robotics Institute, Celebration, FL, USA
| | - Marco Sandri
- Big and Open Data Innovation Laboratory, University of Brescia, Brescia, Italy
| | - Travis Rogers
- AdventHealth Global Robotics Institute, Celebration, FL, USA
| | - Paolo Dell'Oglio
- Department of Urology, ASST Grande Ospedale Metropolitano Niguarda, Milan, Italy
| | - Shannon Roof
- AdventHealth Global Robotics Institute, Celebration, FL, USA
| | - Sunil Reddy
- AdventHealth Global Robotics Institute, Celebration, FL, USA
| | | | | | - Vipul Patel
- AdventHealth Global Robotics Institute, Celebration, FL, USA
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Cochetti G, Del Zingaro M, Ciarletti S, Paladini A, Felici G, Stivalini D, Cellini V, Mearini E. New Evolution of Robotic Radical Prostatectomy: A Single Center Experience with PERUSIA Technique. APPLIED SCIENCES 2021; 11:1513. [DOI: 10.3390/app11041513] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/30/2023]
Abstract
Radical prostatectomy (RP) is the standard surgical treatment of organ-confined prostate cancer in patients with a life expectancy of at least 10 years. In a recent prospective study, we described the PERUSIA (Posterior, Extraperitoneal, Robotic, Under Santorini, Intrafascial, Anterograde) technique, which is an extraperitoneal full nerve sparing robotic RP, showing its feasibility and safety. The aim of this retrospective study was to evaluate the peri-operative, oncologic, and functional outcomes of the PERUSIA technique. We retrospectively analyzed the data of 454 robotic-assisted radical prostatectomies (RARP) performed using the PERUSIA technique from January 2012 to October 2019. We evaluated perioperative outcomes (operative time, estimated blood loss, catheterization time, complication rate, length of stay), oncological (positive surgical margins and biochemical recurrence), and functional outcomes in terms of urinary continence and sexual potency. The overall complication rate was 16%, positive surgical margins were 8.1%, and biochemical recurrence occurred in 8.6% at median follow-up of 47 months. Urinary continence was achieved in 69% of cases the day after the removal of the catheter, in 92% at 3 months, and in 97% at 12 months after surgery. The average rate of sexual potency was 72% and 82% respectively 3 and 12 months after surgery. Our findings show that the PERUSIA technique is a safe extraperitoneal approach to perform a full nerve sparing technique providing exciting functional outcomes.
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18
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Alkatout I, Wedel T, Pape J, Possover M, Dhanawat J. Review: Pelvic nerves - from anatomy and physiology to clinical applications. Transl Neurosci 2021; 12:362-378. [PMID: 34707906 PMCID: PMC8500855 DOI: 10.1515/tnsci-2020-0184] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Revised: 08/28/2021] [Accepted: 08/30/2021] [Indexed: 12/30/2022] Open
Abstract
A prerequisite for nerve-sparing pelvic surgery is a thorough understanding of the topographic anatomy of the fine and intricate pelvic nerve networks, and their connections to the central nervous system. Insights into the functions of pelvic nerves will help to interpret disease symptoms correctly and improve treatment. In this article, we review the anatomy and physiology of autonomic pelvic nerves, including their topography and putative functions. The aim is to achieve a better understanding of the mechanisms of pelvic pain and functional disorders, as well as improve their diagnosis and treatment. The information will also serve as a basis for counseling patients with chronic illnesses. A profound understanding of pelvic neuroanatomy will permit complex surgery in the pelvis without relevant nerve injury.
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Affiliation(s)
- Ibrahim Alkatout
- Department of Gynecology and Obstetrics, University Hospitals Schleswig-Holstein, Campus Kiel, Arnold-Heller Str. 3, Building 24, 24105 Kiel, Germany
| | - Thilo Wedel
- Department of Anatomy, Institute of Anatomy, Center of Clinical Anatomy, University Hospitals Schleswig-Holstein, Campus Kiel, Otto-Hahn-Platz 8, 24118 Kiel, Germany
| | - Julian Pape
- Department of Gynecology and Obstetrics, University Hospitals Schleswig-Holstein, Campus Kiel, Arnold-Heller Str. 3, Building 24, 24105 Kiel, Germany
| | - Marc Possover
- Possover International Medical Center, Zürich, Switzerland
- Department of Gynecology, University of Aarhus, Aarhus, Denmark
| | - Juhi Dhanawat
- Department of Gynecology and Obstetrics, University Hospitals Schleswig-Holstein, Campus Kiel, Arnold-Heller Str. 3, Building 24, 24105 Kiel, Germany
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Pan JW, Jin XW, Luo FX, Jin W, Tu WC, Zhang X, Wang XJ, Huang BX, Xu D, Lu GL, Zhao Y, Shao Y. Beforehand transection and suturing (BTS) of the dorsal vascular complex: a novel technique in laparoscopic radical prostatectomy. Gland Surg 2020; 9:2116-2124. [PMID: 33447562 DOI: 10.21037/gs-20-813] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Background Beforehand transection and suturing (BTS) of the dorsal vascular complex (DVC), a novel technique in non-neurovascular bundle sparing (NVB-sparing) extraperitoneal laparoscopic radical prostatectomy (eLRP), had been proposed; this study aimed to evaluate this technique in clinical laparoscopic procedures. Methods Using this new technique, the DVC was transected and sutured after dissection of the pelvic fascia and before dissection of the prostate, especially before ligation of the bilateral prostatic pedicles. This study retrospectively analyzed the data of 90 non NVB-sparing eLRP patients [traditional technique (n=60) and BTS technique (n=30)]. Results The surgical time in the BTS technique group was 121.73±24.53 min, which was significantly shorter (P=0.0015) than the traditional technique group (144.12±39.68 min). The calculated blood loss in the traditional technique group was 388.45±232.78 mL, and 264.16±130.70 mL in the BTS technique group (P=0.0016). The estimated blood loss in the traditional technique group was 350.34±311.80 mL, which was significantly greater than the BTS technique group (250.33±145.31 mL, P=0.0422). The transfusion rate in the traditional technique group was significantly greater than the BTS technique group (15.00% vs. 0.00%; P=0.0266). The biochemical recurrence rate in traditional technique group was 48.33%, which was higher than in the BTS group (30.00%) (P=0.0465). There was no significant difference between the 2 groups with respect to the pre-operative hemoglobin (Hb) concentration, pre-operative hematocrit (HCT), post-operative Hb concentration, post-operative HCT, ΔHCT, pre-operative blood volume, rectal perforation, open conversion, apical capsule residue, false suture, post-operative bleeding, urinary leakage, re-operation, surgical site infection, post-operative stay, and emission time of urinary incontinence. Conclusions In managing the relationship between the DVC and prostate in patients undergoing non NVB-sparing eLRP, the BTS technique was shown to be more effective and safer than the traditional technique.
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Affiliation(s)
- Jun-Wei Pan
- Department of Urology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xing-Wei Jin
- Department of Urology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Fang-Xiu Luo
- Department of Pathology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Wei Jin
- Department of Anesthesiology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Wei-Chao Tu
- Department of Urology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xiang Zhang
- Department of Urology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xian-Jin Wang
- Department of Urology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Bao-Xing Huang
- Department of Urology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Da Xu
- Department of Urology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Guo-Liang Lu
- Department of Urology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yang Zhao
- Department of Urology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yuan Shao
- Department of Urology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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Pan JW, Jin XW, Luo FX, Jin W, Tu WC, Zhang X, Wang XJ, Huang BX, Xu D, Lu GL, Zhao Y, Shao Y. Beforehand transection and suturing (BTS) of the dorsal vascular complex: a novel technique in laparoscopic radical prostatectomy. Gland Surg 2020. [PMID: 33447562 DOI: 10.21037/gs-20-813)] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
BACKGROUND Beforehand transection and suturing (BTS) of the dorsal vascular complex (DVC), a novel technique in non-neurovascular bundle sparing (NVB-sparing) extraperitoneal laparoscopic radical prostatectomy (eLRP), had been proposed; this study aimed to evaluate this technique in clinical laparoscopic procedures. METHODS Using this new technique, the DVC was transected and sutured after dissection of the pelvic fascia and before dissection of the prostate, especially before ligation of the bilateral prostatic pedicles. This study retrospectively analyzed the data of 90 non NVB-sparing eLRP patients [traditional technique (n=60) and BTS technique (n=30)]. RESULTS The surgical time in the BTS technique group was 121.73±24.53 min, which was significantly shorter (P=0.0015) than the traditional technique group (144.12±39.68 min). The calculated blood loss in the traditional technique group was 388.45±232.78 mL, and 264.16±130.70 mL in the BTS technique group (P=0.0016). The estimated blood loss in the traditional technique group was 350.34±311.80 mL, which was significantly greater than the BTS technique group (250.33±145.31 mL, P=0.0422). The transfusion rate in the traditional technique group was significantly greater than the BTS technique group (15.00% vs. 0.00%; P=0.0266). The biochemical recurrence rate in traditional technique group was 48.33%, which was higher than in the BTS group (30.00%) (P=0.0465). There was no significant difference between the 2 groups with respect to the pre-operative hemoglobin (Hb) concentration, pre-operative hematocrit (HCT), post-operative Hb concentration, post-operative HCT, ΔHCT, pre-operative blood volume, rectal perforation, open conversion, apical capsule residue, false suture, post-operative bleeding, urinary leakage, re-operation, surgical site infection, post-operative stay, and emission time of urinary incontinence. CONCLUSIONS In managing the relationship between the DVC and prostate in patients undergoing non NVB-sparing eLRP, the BTS technique was shown to be more effective and safer than the traditional technique.
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Affiliation(s)
- Jun-Wei Pan
- Department of Urology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xing-Wei Jin
- Department of Urology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Fang-Xiu Luo
- Department of Pathology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Wei Jin
- Department of Anesthesiology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Wei-Chao Tu
- Department of Urology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xiang Zhang
- Department of Urology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xian-Jin Wang
- Department of Urology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Bao-Xing Huang
- Department of Urology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Da Xu
- Department of Urology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Guo-Liang Lu
- Department of Urology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yang Zhao
- Department of Urology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yuan Shao
- Department of Urology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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Arenas-Gallo C, Shoag JE, Hu JC. Optimizing Surgical Techniques in Robot-Assisted Radical Prostatectomy. Urol Clin North Am 2020; 48:1-9. [PMID: 33218583 DOI: 10.1016/j.ucl.2020.09.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Robot-assisted radical prostatectomy (RARP) is the most common surgical treatment of localized prostate cancer. The ideal procedure would achieve maximum oncological efficacy while minimizing associated side effects, such as erectile dysfunction and urinary incontinence. Surgeon experience and surgical technique affect RARP outcomes. Here, the authors review RARP technical modifications aimed at optimizing cancer control and postoperative urinary and sexual function.
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Affiliation(s)
- Camilo Arenas-Gallo
- School of Medicine, Universidad Industrial de Santander, Cra 21 No 158-80 Casa 83, Floridablanca, Santander 681004, Colombia
| | - Jonathan E Shoag
- Department of Urology, University Hospitals Cleveland Medical Center, Case Western Reserve University School of Medicine, Case Comprehensive Cancer Center, 11100 Euclid Ave, Cleveland, OH 44106, USA; Department of Urology, New York Presbyterian Hospital, Weill Cornell Medicine, 24610 Sittingbourne Drive, Bechwood, NY 44122, USA.
| | - Jim C Hu
- Department of Urology, New York Presbyterian Hospital, Weill Cornell Medicine, 413 East 69th Street, Starr 946, New York, NY 10021, USA
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Kumar A, Patel VR, Panaiyadiyan S, Seetharam Bhat KR, Moschovas MC, Nayak B. Nerve-sparing robot-assisted radical prostatectomy: Current perspectives. Asian J Urol 2020; 8:2-13. [PMID: 33569267 PMCID: PMC7859364 DOI: 10.1016/j.ajur.2020.05.012] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2019] [Revised: 03/16/2020] [Accepted: 04/10/2020] [Indexed: 12/13/2022] Open
Abstract
Robotic-assisted radical prostatectomy (RARP) is the current standard of care with long term cure in organ-confined disease. The introduction of nerve-sparing (NS) to standard RARP has shown positive results in terms of functional outcomes in addition to the oncological outcomes. This article reviews the current perspectives of NS-RARP in terms of applied anatomy of the prostatic fascial planes, the neurovascular bundle (NVB), various NS techniques and postoperative functional outcomes. A non-systematic review was done using PubMed, Embase and Medline databases to retrieve and analyse articles in English, with following keywords "prostate cancer", "robotic radical prostatectomy", "nerve-sparing". The Delphi method was used with an expert panel of robotic surgeons in urology to analyse the potency outcomes of various published comparative and non-comparative studies. The literature has shown that NS-RARP involves various techniques and approaches while there is a lack of randomized studies to suggest the superiority of one over the other. Variables such as preoperative risk assessments, baseline potency, surgical anatomy of individual patients and surgeons' expertise play a major role in the outcomes. A tailored approach for each patient is required for applying the NS approach during RARP.
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Affiliation(s)
- Anup Kumar
- Department of Urology,Robotics and Renal Transplant, Vardhman Mahaveer Medical College and Safdarjang Hospital, New Delhi, India
| | - Vipul R Patel
- Department of Robotic Surgery, AdventHealth Global Robotics Institute, Celebration, FL, USA
| | - Sridhar Panaiyadiyan
- Department of Urology, All India Institute of Medical Sciences, New Delhi, India
| | | | - Marcio Covas Moschovas
- Department of Robotic Surgery, AdventHealth Global Robotics Institute, Celebration, FL, USA
| | - Brusabhanu Nayak
- Department of Urology, All India Institute of Medical Sciences, New Delhi, India
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Kang SG, Shim JS, Onol F, Bhat KRS, Patel VR. Lessons learned from 12,000 robotic radical prostatectomies: Is the journey as important as the outcome? Investig Clin Urol 2020; 61:1-10. [PMID: 31942457 PMCID: PMC6946819 DOI: 10.4111/icu.2020.61.1.1] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2019] [Accepted: 12/19/2019] [Indexed: 01/15/2023] Open
Abstract
Robotic radical prostatectomy (RARP) is a standardized treatment for localized prostate cancer, which provides better functional outcomes and similar oncological outcomes compared to open approaches. Here, we share our experience of 12,000 RARPs by describing the outcomes of the procedure in terms of positive surgical margin (PSM), continence, and potency as well as by presenting our detailed surgical technique with recent modifications. On cancer control, the PSM rates were 5.8% and 26.1% in T2 and T3, respectively. On the premise of not compromising oncologic outcomes, a tailored approach to individual patients is essential. Even if an extracapsular extension is suspected, neurovascular bundle (NVB) tailoring can be applied using an anatomical landmark to preserve maximal nerve tissue with a negative margin. We developed a nomogram as a useful tool for deciding the degree of tailoring. For improvements of functional outcomes, we used athermal retrograde early release with a toggling technique, wherein the nerve dissection from the bottom helps with blood loss and allows for smooth NVB releasing. Additionally, we recently performed a new minimal apical dissection/lateral prostatic fascia preservation technique. As a result, our 1-week continence rate was 37% and the 6-week rate was 77.6%. In addition, the potency rates in our study were 69%, 82%, and 92% at 3 months, 6 months, and 1 year, respectively (preoperative Sexual Health Inventory for Men scores >21 & bilateral full nerve spared).
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Affiliation(s)
- Sung Gu Kang
- Department of Urology, Korea University College of Medicine, Seoul, Korea
| | - Ji Sung Shim
- Department of Urology, Korea University College of Medicine, Seoul, Korea
| | - Fikret Onol
- Global Robotics Institute, Florida Hospital Celebration Health, University of Central Florida School of Medicine, Orlando, FL, USA
| | - K R Seetharam Bhat
- Global Robotics Institute, Florida Hospital Celebration Health, University of Central Florida School of Medicine, Orlando, FL, USA
| | - Vipul R Patel
- Global Robotics Institute, Florida Hospital Celebration Health, University of Central Florida School of Medicine, Orlando, FL, USA
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24
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Philippou Y, Harriss E, Davies L, Jubber I, Leslie T, Bell RW, Bryant RJ, Hamdy FC, Verrill C, Lamb AD. Prostatic capsular incision during radical prostatectomy has important oncological implications: a systematic review and meta-analysis. BJU Int 2019; 124:554-566. [PMID: 30113754 DOI: 10.1111/bju.14522] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
INTRODUCTION Prostatic capsular incision (CapI) is an iatrogenic breach of the prostatic capsule during radical prostatectomy (RP) that can cause positive surgical margins (PSMs) in organ-confined (pT2) prostate cancer, or the retention of benign prostatic tissue. We systematically interrogated the literature in order to clarify the definition of CapI, and the implications of this event for rates of PSM and biochemical recurrence (BCR). METHODS A literature search was conducted according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) criteria using the search terms 'capsular incision' AND 'prostatectomy', and variations of each. In all, 18 studies were eligible for inclusion. RESULTS A total of 51 057 RP specimens were included. The incidence of CapI ranged from 1.3% to 54.3%. CapI definitions varied and included a breach of the prostatic capsule 'exposing both benign or malignant prostate cancer cells', 'malignant tissue only', or 'benign tissue only'. The incidence of PSMs due to CapI ranged from 2.8% to 71.7%. Our meta-analysis results found that when CapI was defined as 'exposing malignant tissue only in organ-confined prostate cancer' there was an increased risk of BCR compared to patients with pT2 disease and no CapI (relative risk 3.53, 95% confidence interval 2.82-4.41; P < 0.001). CONCLUSIONS The absolute impact of CapI on oncological outcomes is currently unclear due to inconsistent definitions. However, the data imply an association between CapI and PSMs and BCR. Reporting of possible areas of CapI on the operation note, or marking areas of concern on the specimen, are critical to assist CapI recognition by the pathologist.
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Affiliation(s)
- Yiannis Philippou
- CRUK/MRC Oxford Institute for Radiation Oncology, University of Oxford, Oxford, UK
- Nuffield Department of Surgical Sciences, University of Oxford, Oxford, UK
- Churchill Hospital Cancer Centre, Oxford University Hospitals, NHS Foundation Trust, Oxford, UK
| | - Eli Harriss
- Bodleian Health Care Libraries, University of Oxford, Oxford, UK
| | - Lucy Davies
- Clinical Trial Service Unit & Epidemiological Studies Unit, Nuffield Department of Population Health, University of Oxford, Oxford, UK
| | - Ibrahim Jubber
- Addenbrooke's Hospital, Cambridge University Hospitals, NHS Foundation Trust, Cambridge, UK
| | - Tom Leslie
- Churchill Hospital Cancer Centre, Oxford University Hospitals, NHS Foundation Trust, Oxford, UK
| | - Richard W Bell
- Churchill Hospital Cancer Centre, Oxford University Hospitals, NHS Foundation Trust, Oxford, UK
| | - Richard J Bryant
- Nuffield Department of Surgical Sciences, University of Oxford, Oxford, UK
- Churchill Hospital Cancer Centre, Oxford University Hospitals, NHS Foundation Trust, Oxford, UK
| | - Freddie C Hamdy
- Nuffield Department of Surgical Sciences, University of Oxford, Oxford, UK
- Churchill Hospital Cancer Centre, Oxford University Hospitals, NHS Foundation Trust, Oxford, UK
| | - Clare Verrill
- Nuffield Department of Surgical Sciences, University of Oxford, Oxford, UK
- Churchill Hospital Cancer Centre, Oxford University Hospitals, NHS Foundation Trust, Oxford, UK
| | - Alastair D Lamb
- Nuffield Department of Surgical Sciences, University of Oxford, Oxford, UK
- Churchill Hospital Cancer Centre, Oxford University Hospitals, NHS Foundation Trust, Oxford, UK
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Della Camera PA, Tellini R, Cito G, Rastrelli G, Maggi M, Chini T, Nunzio CD, Altieri VM, Serni S, Gacci M, Natali A. Efficacy and safety of avanafil 200 mg versus sildenafil 100 mg in the treatment of erectile dysfunction after robot-assisted unilateral nerve-sparing prostatectomy: A prospective multicentre study. Urologia 2019; 87:23-28. [PMID: 31441379 DOI: 10.1177/0391560319867809] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Phosphodiesterase type 5 inhibitors represent the standard treatment of erectile dysfunction after nerve-sparing prostatectomy. Avanafil is a second-generation phosphodiesterase type 5 inhibitor with a high selectivity for phosphodiesterase type 5 isoform. To date, there are no studies comparing the outcomes of avanafil versus sildenafil in this scenario. In this study, we evaluated the efficacy and safety of avanafil versus sildenafil as a drug for post-prostatectomy rehabilitation. Overall, 160 patients submitted to robot-assisted nerve-sparing prostatectomy for localized prostate cancer at three hospitals were enrolled for the present study. After 6 months of treatment, patients in the two groups showed no significantly different sexual function scores, except for the Erection Hardness Score and Sexual Encounter Profile-Q2 that were higher in the Sildenafil group. Adverse events in the Avanafil group occurred in four (5%) patients and in 16 (20%) patients in the Sildenafil group. According to our experience, in patients undergoing nerve-sparing prostatectomy, penile rehabilitation with avanafil compared to sildenafil showed a lower ability to produce a valid erection in the initial phase of sexual intercourse, a difference that disappears in the continuation of the same. Avanafil showed a greater tolerance profile with a lower rate of AEs and discontinuation of therapy due to AEs.
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Affiliation(s)
| | - Riccardo Tellini
- Department of Urology, University of Florence, Careggi University Hospital, Florence, Italy
| | - Gianmartin Cito
- Department of Urology, University of Florence, Careggi University Hospital, Florence, Italy
| | - Giulia Rastrelli
- Sexual Medicine and Andrology Unit, Department of Experimental, Clinical and Biomedical Sciences, University of Florence, Florence, Italy
| | - Mario Maggi
- Sexual Medicine and Andrology Unit, Department of Experimental, Clinical and Biomedical Sciences, University of Florence, Florence, Italy
| | - Tommaso Chini
- Department of Urology, University of Siena, Le Scotte Hospital, Siena, Italy
| | - Cosimo De Nunzio
- Department of Urology, Sant'Andrea Hospital and Faculty of Health Sciences, Sapienza University of Rome, Rome, Italy
| | | | - Sergio Serni
- Department of Urology, University of Florence, Careggi University Hospital, Florence, Italy
| | - Mauro Gacci
- Department of Urology, University of Florence, Careggi University Hospital, Florence, Italy
| | - Alessandro Natali
- Department of Urology, University of Florence, Careggi University Hospital, Florence, Italy
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Park J, Cho SY, Park K, Chai JS, Son H, Kim SW, Paick JS, Cho MC. Role of inhibiting LIM-kinase2 in improving erectile function through suppression of corporal fibrosis in a rat model of cavernous nerve injury. Asian J Androl 2019. [PMID: 29516877 PMCID: PMC6038164 DOI: 10.4103/aja.aja_82_17] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
We evaluated whether LIM-kinase 2 inhibitor (LIMK2i) could improve erectile function by suppressing corporal fibrosis through the normalization of the Rho-associated coiled-coil protein kinase 1 (ROCK1)/LIMK2/Cofilin pathway in a rat model of cavernous nerve crush injury (CNCI). Sixty 11-week-old male Sprague-Dawley rats were divided equally into five groups: sham surgery (S), CNCI (I), and CNCI treated with low-dose (L), medium-dose (M), and high-dose (H) LIMK2i. The L, M, and H groups were treated with a daily intraperitoneal injection of LIMK2i (2.5, 5.0, and 10.0 mg kg-1 body weight, respectively) for 1 week after surgery. The erectile response was assessed using electrostimulation at 1 week, postoperatively. Penile tissues were processed for Masson's trichrome staining, double immunofluorescence, and Western blot assay. Erectile responses in the H group improved compared with the I group, while the M group showed only partial improvement. A significantly decreased smooth muscle/collagen ratio and an increased content of fibroblasts positive for phospho-LIMK2 were noted in the I group. The M and H groups revealed significant improvements in histological alterations and the dysregulated LIMK2/Cofilin pathway, except for LIMK2 phosphorylation in the M group. The inhibition of LIMK2 did not affect the ROCK1 protein expression. The content of fibroblasts positive for phospho-LIMK2 in the H group returned to the level found in the S group, whereas it did not in the M group. However, the L group did not exhibit such improvements. Our data suggest that the inhibition of LIMK2, particularly with administration of 10.0 mg kg-1 body weight LIMK2i, can improve corporal fibrosis and erectile function by normalizing the LIMK2/Cofilin pathway.
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Affiliation(s)
- Juhyun Park
- Department of Urology, Seoul National University College of Medicine, SMG-SNU Boramae Medical Center, Seoul 03080, Korea
| | - Sung Yong Cho
- Department of Urology, Seoul National University College of Medicine, SMG-SNU Boramae Medical Center, Seoul 03080, Korea
| | - Kwanjin Park
- Department of Urology, Seoul National University College of Medicine, Seoul National University Hospital, Seoul 07061, Korea
| | - Ji Sun Chai
- Department of Urology, Seoul National University College of Medicine, Seoul National University Hospital, Seoul 07061, Korea
| | - Hwancheol Son
- Department of Urology, Seoul National University College of Medicine, SMG-SNU Boramae Medical Center, Seoul 03080, Korea
| | - Soo Woong Kim
- Department of Urology, Seoul National University College of Medicine, Seoul National University Hospital, Seoul 07061, Korea
| | - Jae-Seung Paick
- Department of Urology, Seoul National University College of Medicine, Seoul National University Hospital, Seoul 07061, Korea
| | - Min Chul Cho
- Department of Urology, Seoul National University College of Medicine, SMG-SNU Boramae Medical Center, Seoul 03080, Korea
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Chronic administration of LIMK2 inhibitors alleviates cavernosal veno-occlusive dysfunction through suppression of cavernosal fibrosis in a rat model of erectile dysfunction after cavernosal nerve injury. PLoS One 2019; 14:e0213586. [PMID: 30870492 PMCID: PMC6417654 DOI: 10.1371/journal.pone.0213586] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2018] [Accepted: 02/22/2019] [Indexed: 12/05/2022] Open
Abstract
We evaluated whether chronic administration of LIMK2-inhibitors could improve erectile function by alleviating CVOD through suppressing cavernosal fibrosis in a rat model of cavernosal nerve crush-injury (CNCI). Forty-two 12-week-old rats were equally categorized into the three groups: sham-surgery (S), CNCI (I), and CNCI treated with LIMK2-inhibitors (L). The L-group was treated with daily intraperitoneal injection of LIMK2-inhibitors (10.0 mg/kg) for 30-days after surgery. Erectile function was assessed using dynamic-infusion-cavernosometry (DIC). Penile tissue was processed for Masson’s-trichrome staining, Western-blotting, and double immunofluorescence. The I-group showed significantly higher maintenance and drop rates as well as lower papaverine response, compared to the S-group. Chronic inhibition of LIMK2 in the L-group significantly improved the DIC parameters compared to those in the I-group, although the parameters were not completely restored to normal control values. Also, the I-group showed a reduced smooth muscle (SM)-to-collagen ratio, decreased immunohistochemical staining for α-SM-actin, increased number of fibroblasts positive for phosphorylated Cofilin, increased LIMK2/Cofilin phosphorylation and increased protein expression of Collagen-1 or Fibronectin, compared to the S-group. The L-group showed significant improvements in SM/collagen ratio and the deposition of Collagen-1 or Fibronectin compared to the I-group, although not completely normalized. According to the densitometry and confocal microscopy results, the L-group showed restoration of LIMK2/Cofilin phosphorylation and amount of fibroblasts positive for phosphorylated Cofilin to the normal control value. In conclusion, chronic inhibition of LIMK2 can improve CVOD and ED by alleviating cavernosal fibrosis via normalizing the LIMK2/Cofilin pathway.
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Bajpai RR, Razdan S, Sanchez MA, Razdan S. A novel intraoperative physician-assigned grading score to predict postoperative return of potency at 1 year after robotic-assisted laparoscopic prostatectomy. INDIAN JOURNAL OF UROLOGY : IJU : JOURNAL OF THE UROLOGICAL SOCIETY OF INDIA 2019; 35:61-66. [PMID: 30692726 PMCID: PMC6334588 DOI: 10.4103/iju.iju_158_18] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Introduction: We examined a novel method of grading nerve sparing in robotic-assisted laparoscopic radical prostatectomy to better predict the potency outcomes of patients at 1-year after surgery. This grading (scale) was based on the surgeon's criteria of intraoperative findings during completion of nerve sparing. This grading was then analyzed statistically to validate its association with potency outcomes. Methods: We devised a study module based on measurable visual cues intraoperatively where the surgeon risk stratified the surgery into four grades depending on the completeness of nerve sparing, keeping in mind the known parameters influencing potency outcomes. A novel grading scale was then proposed and used in this study for the same. We prospectively collected data and retrospectively analyzed 425 patients undergoing robotic-assisted laparoscopic prostatectomy (RALP) at a high-volume center by a single surgeon. Results: At 1 year of follow-up, it was found that age, laterality of nerve preservation, weight of prostate, and the surgeon-assigned grading were all statistically significant independent predictors of return of potency in terms of satisfactory penetrative intercourse >50% of times and Sexual Health Inventory for Men ≥17. However, prostate-specific antigen was found not to be a predictor of the same. Conclusions: Intraoperative physician-assigned grading was found to be the single most significant predictor of the return of potency at 1-year post-RALP.
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Affiliation(s)
- Rajesh R Bajpai
- Department of Urology, Larkin Community Hospital, Miami, FL, USA
| | - Shirin Razdan
- Department of Urology, Ichan School of Medicine at Mount Sinai Hospital, New York, USA
| | - Marcos A Sanchez
- Department of Urology, Larkin Community Hospital, Miami, FL, USA
| | - Sanjay Razdan
- Department of Urology, Larkin Community Hospital, Miami, FL, USA
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29
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Rapoport L, Yossepowitch O, Shpot E, Chinenov D, Chernov Y, Yurova M, Enikeev D. Radical prostatectomy performed via robotic, transperitoneal and extraperitoneoscopic approaches: functional and early oncological outcomes. Cent European J Urol 2018; 71:378-385. [PMID: 30680229 PMCID: PMC6338822 DOI: 10.5173/ceju.2018.1739] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2018] [Revised: 07/24/2018] [Accepted: 10/28/2018] [Indexed: 01/02/2023] Open
Abstract
Introduction Oncological remission along with high postoperative functionality [continence and erectile function (EF)] are the main aspects of prostate cancer (PCa) treatment. The aim of this study was to compare functional and oncological treatment results achieved after a nerve-sparing radical prostatectomy (RP) via transperitoneal (TPRP), extraperitoneal (EPRP) and robot-assisted (RARP) approach. Material and methods From March 2015 to March 2016, 507 RP were performed at the Institute for Urology and Reproductive Health (Moscow, Russia). A total of 264 patients with localized (cТ1а–2с) prostate cancer [prostate-specific antigen (PSA) <20 ng/ml, Gleason score ≤7], intact prostate capsule (according to MRI), International Index of Erectile Function (IIEF-5) ≥19 and a life expectancy >10 years were included into the retrospective study. All the surgeries were performed by a single surgeon. The outcomes were evaluated after urethral catheter removal and 3–6–12 months after RP. Results Nerve preservation (NP) was performed for 153 patients without significant distinctions in time (р = 0.064) and blood loss (р = 0.073). The International Consultation on Incontinence Questionnaire-Urinary Incontinence Short Form (ICIQ-SF) score was lower for NP: 9.23 ±6.59 and 3.86 ±5.38 after 3 and 12 months respectively compared with continence after RP without nerve preservation (NP): 14.27 ±5.1 vs. 6.15 ±4.76 (р <0.001). Continent was 52.2% vs. 83.3% vs. 81.8% in TPRP, RARP and EPRP groups; р <0.001. IIEF-5 scores were 14.67 ±9.4, 4.2 ±4.26 and 4.0 ±2.07 after RARP, TPRP and EPRP respectively (р = 0.002). After 12 months the PSA: TPRP = 0.11 ±0.19, RARP = 0.03 ±0.05 and EPRP = 0.53 ±1.87 ng/ml (р <0.001). Outcomes depend on surgical approach and was better in the RARP-group (AUC = 0.768 ±0.034 (CI 95% 0,701–0.834; р <0.001). Conclusions We suggest RARP with NP as a method of choice for treatment of prostate cancer in patients interested in preservation of EF and quality of life in general.
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Affiliation(s)
- Leonid Rapoport
- Institute for Urology and Reproductive Health, Sechenov University, Moscow, Russia
| | | | - Evgeniy Shpot
- Institute for Urology and Reproductive Health, Sechenov University, Moscow, Russia
| | - Denis Chinenov
- Institute for Urology and Reproductive Health, Sechenov University, Moscow, Russia
| | - Yaroslav Chernov
- Institute for Urology and Reproductive Health, Sechenov University, Moscow, Russia
| | | | - Dmitry Enikeev
- Institute for Urology and Reproductive Health, Sechenov University, Moscow, Russia
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Cha J, Broch A, Mudge S, Kim K, Namgoong JM, Oh E, Kim P. Real-time, label-free, intraoperative visualization of peripheral nerves and micro-vasculatures using multimodal optical imaging techniques. BIOMEDICAL OPTICS EXPRESS 2018; 9. [PMID: 29541506 PMCID: PMC5846516 DOI: 10.1364/boe.9.001097] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
Accurate, real-time identification and display of critical anatomic structures, such as the nerve and vasculature structures, are critical for reducing complications and improving surgical outcomes. Human vision is frequently limited in clearly distinguishing and contrasting these structures. We present a novel imaging system, which enables noninvasive visualization of critical anatomic structures during surgical dissection. Peripheral nerves are visualized by a snapshot polarimetry that calculates the anisotropic optical properties. Vascular structures, both venous and arterial, are identified and monitored in real-time using a near-infrared laser-speckle-contrast imaging. We evaluate the system by performing in vivo animal studies with qualitative comparison by contrast-agent-aided fluorescence imaging.
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Affiliation(s)
- Jaepyeong Cha
- Sheikh Zyaed Institute for Pediatric Surgical Innovation, Children's National Health System, 111 Michigan Avenue NW, Washington, DC 20010, USA
- These authors contributed equally to this work
| | - Aline Broch
- Sheikh Zyaed Institute for Pediatric Surgical Innovation, Children's National Health System, 111 Michigan Avenue NW, Washington, DC 20010, USA
- These authors contributed equally to this work
| | - Scott Mudge
- Sheikh Zyaed Institute for Pediatric Surgical Innovation, Children's National Health System, 111 Michigan Avenue NW, Washington, DC 20010, USA
| | - Kihoon Kim
- Sheikh Zyaed Institute for Pediatric Surgical Innovation, Children's National Health System, 111 Michigan Avenue NW, Washington, DC 20010, USA
- Department of Surgery, Inje University Haeundae Paik Hospital, 875 Haeun-daero, Haeundae-gu, Busan 612-896, South Korea
| | - Jung-Man Namgoong
- Sheikh Zyaed Institute for Pediatric Surgical Innovation, Children's National Health System, 111 Michigan Avenue NW, Washington, DC 20010, USA
- Department of Surgery, Asan Medical Center, 88 Olympic-ro 43-gil, Songpa-gu, Seoul 138-736, South Korea
| | - Eugene Oh
- Sheikh Zyaed Institute for Pediatric Surgical Innovation, Children's National Health System, 111 Michigan Avenue NW, Washington, DC 20010, USA
- Department of Biomedical Engineering, The Johns Hopkins University, 3400 N. Charles Street, Baltimore, MD 21218, USA
| | - Peter Kim
- Sheikh Zyaed Institute for Pediatric Surgical Innovation, Children's National Health System, 111 Michigan Avenue NW, Washington, DC 20010, USA
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Di Paola V, Cybulski A, Belluardo S, Cavicchioli F, Manfredi R, Pozzi Mucelli R. Evaluation of periprostatic neurovascular fibers before and after radical prostatectomy by means of 1.5 T MRI diffusion tensor imaging. Br J Radiol 2018; 91:20170318. [PMID: 29388808 DOI: 10.1259/bjr.20170318] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
OBJECTIVE To evaluate if diffusion tensor imaging (DTI) is able to detect changes of periprostatic neurovascular fibers (PNFs) before and after radical prostatectomy (RP), and if these changes are related to post-surgical urinary incontinence and erectile dysfunction. METHODS 22 patients (mean age 62.6 years) with biopsy-proven prostate cancer underwent 1.5 T DTI before and after RP. The number, fractional anisotropy (FA) values and length of PNFs before and after RP were compared using Student's t-test. Each patient filled out two questionnaires before and after RP, one for the evaluation of urinary continence (ICIQ-SF) and one for the evaluation of erectile function (IIEF-5). The ratios of the number, FA values and length of PNFs before and after RP (DTI B-A RATIOs) and the ratios between the scores obtained before and after RP for both ICIQ-SF and IIEF-2 (ICIQ-SF B-A RATIOs and IIEF-2 B-A RATIOs) were calculated to perform the Kendall's τ-test between them. RESULTS There was a statistically significant decrease of the number of PNFs after RP at base, midgland, and apex (p < 0.01) and of FA values at midgland (p < 0.05), with positive statistically significant correlation between the DTI B-A RATIOs of the number of PNFs and IIEF-2 B-A RATIOs (p < 0.05, ρ = 0.47). CONCLUSION DTI was able to detect that the decrease of the number of the PNFs after RP was statistically related to the post-surgical erectile dysfunction (p < 0.05). Advances in knowledge: This work demonstrates that: (1) 1.5 T MRI DTI is able to detect the decrease of the number and of the FA of PNFs after prostatectomy; (2) the decrease of the number of PNFs after prostatectomy is related with the post-surgical erectile dysfunction; (3) 1.5 T MRI DTI has demonstrated to be a reproducible technique in detecting the changes of the PNFs induced by RP, with high interobserver agreement.
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Affiliation(s)
- Valerio Di Paola
- 1 Department of Radiology, Policlinico A. Gemelli - Università Cattolica del Sacro Cuore di Roma , Rome , Italy
| | - Adam Cybulski
- 2 Department of Radiology, Policlinico G.B. Rossi - Università di Verona , Verona , Italy
| | - Salvatore Belluardo
- 3 Department of Radiology, Ospedale Civile Maggiore di Borgo Trento - Verona , Verona , Italy
| | - Francesca Cavicchioli
- 4 Departement of Urology, Ospedale Sacro Cuore Don Calabria di Negrar , Negrar , Italy
| | - Riccardo Manfredi
- 1 Department of Radiology, Policlinico A. Gemelli - Università Cattolica del Sacro Cuore di Roma , Rome , Italy
| | - Roberto Pozzi Mucelli
- 2 Department of Radiology, Policlinico G.B. Rossi - Università di Verona , Verona , Italy
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Dirie NI, Pokhrel G, Guan W, Mumin MA, Yang J, Masau JF, Hu H, Wang S. Is Retzius-sparing robot-assisted radical prostatectomy associated with better functional and oncological outcomes? Literature review and meta-analysis. Asian J Urol 2018; 6:174-182. [PMID: 31061804 PMCID: PMC6488752 DOI: 10.1016/j.ajur.2018.02.001] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2017] [Revised: 09/29/2017] [Accepted: 10/17/2017] [Indexed: 11/28/2022] Open
Abstract
Objective To evaluate the efficiency, safety and clinical outcomes of Retzius-sparing robot-assisted radical prostatectomy (RS-RARP) in comparison with the standard RARP. Methods A systematic search from Web of Science, PubMed, EMBase, Cochrane Library and Google Scholar was performed using the terms “Retzius-sparing”, “Bocciardi approach” and “robot-assisted radical prostatectomy”. Video articles and abstract papers for academic conferences were excluded. Meta-analysis of interested outcomes such as positive surgical margins (PSMs) and continence recovery was undertaken. A comprehensive literature review of all studies regarding Retzius-sparing (RS) approach was conducted and summarized. Results From 2010 to 2017, 11 original articles about RS-RARP approach were retrieved. Of that, only four studies comparing the RS-RARP approach to the conventional RARP were comparable for meta-analysis. Faster overall continence recovery within 1 month after the surgery was noted in the RS group (61% vs. 43%; p = 0.004). PSMs of pT2 and pT3 stages were not significantly different between the groups (10.0% vs. 7.4%; p = 0.39 and 13.1% vs. 9.5%, p = 0.56, respectively). Of all the studies, only one reported sexual recovery outcomes after RS treatment in which 40% of the participants achieved sexual intercourse within the first month. Conclusion Though more technically demanding than the conventional RARP, the RS technique is a safe and feasible approach. This meta-analysis and literature review indicates that RS technique, as opposed to the conventional approach, is associated with a faster continence recovery while PSMs were comparable between the two groups. The limitations of observational studies and the small data in our meta-analysis may prevent an ultimate conclusion. Future well-designed RCTs are needed to validate and confirm our findings.
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Affiliation(s)
- Najib Isse Dirie
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Gaurab Pokhrel
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Wei Guan
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Mukhtar Adan Mumin
- Department of Urology, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China
| | - Jun Yang
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jackson Ferdinand Masau
- Department of Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Henglong Hu
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Shaogang Wang
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Corresponding author.
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Affiliation(s)
- Glen Denmer Santok
- Department of Urology and Urological Science Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Koon Ho Rha
- Department of Urology and Urological Science Institute, Yonsei University College of Medicine, Seoul, Korea
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