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Taori R, Penmetsa G, Adhikari K, Chiranjeevi T, Kumar A, Raghunath SK. Neurovascular Structure-Adjacent Frozen-Section Examination (NeuroSAFE) Technique of Nerve-Sparing Robot-Assisted Radical Prostatectomy (RARP) in Indian Scenario: Technique, Feasibility, and Early Outcomes. Indian J Surg Oncol 2024; 15:296-301. [PMID: 38741648 PMCID: PMC11088567 DOI: 10.1007/s13193-024-01885-2] [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: 07/16/2023] [Accepted: 01/18/2024] [Indexed: 05/16/2024] Open
Abstract
Potency and urinary continence are adversely affected post-prostatectomy. The primary objective is oncological safety by ensuring negative surgical margins (NSM) and best functional recovery through nerve preservation in appropriate patients. NeuroSAFE technique of intra-operative frozen-section (IFS) analysis was devised for comprehensive assessment of surgical margins adjacent to the neurovascular tissue surface of the prostate. We analyzed our initial experience with this technique. Five NS-RARPs were performed utilizing the NeuroSAFE technique between October 2021 and February 2022. Patient demographics, disease stage, operative console time, post-operative complications, final histopathology, biochemical recurrence (BCR), erectile function, and urinary continence were recorded. The mean age of patients was 59.2 ± 1.3 years. All had clinically organ-confined disease with ISUP grade ≤ 3. The mean operative time of NS-RARP with NeuroSAFE was 240 ± 21 min and average NeuroSAFE time was 45 ± 3.8 min. All patients had NSM on IFS. No patient had Clavien-Dindo grade > 1 complications. Margins were negative on final histopathology. No patient had BCR at 6 and 12 weeks. Three patients were able to have sexual intercourse and only one patient required single precaution pad at 12 weeks. NeuroSAFE is feasible and can ensure intra-operative oncological safety of the NS procedure. Moreover, it gives the opportunity to convert positive surgical margin to prognostically favorable NSM by secondary resection. Our initial experience which is the first in India is encouraging with favorable functional outcomes. Large prospective studies and longer follow-up are required specially to evaluate the oncological benefit.
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Affiliation(s)
- Ravi Taori
- Department of Uro-Oncology and Robotic Surgery, HCG Comprehensive Cancer Care Hospital, Bengaluru, Karnataka India
| | - Gowtham Penmetsa
- Department of Uro-Oncology and Robotic Surgery, HCG Comprehensive Cancer Care Hospital, Bengaluru, Karnataka India
| | - Kinju Adhikari
- Department of Uro-Oncology and Robotic Surgery, HCG Comprehensive Cancer Care Hospital, Bengaluru, Karnataka India
| | - Tejus Chiranjeevi
- Department of Uro-Oncology and Robotic Surgery, HCG Comprehensive Cancer Care Hospital, Bengaluru, Karnataka India
| | - Anil Kumar
- Department of Uro-Oncology and Robotic Surgery, HCG Comprehensive Cancer Care Hospital, Bengaluru, Karnataka India
| | - S. K. Raghunath
- Department of Uro-Oncology and Robotic Surgery, HCG Comprehensive Cancer Care Hospital, Bengaluru, Karnataka India
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Xu ZW, Zhu JT, Bai HY, Yu XJ, Hong QQ, You J. Clinical efficacy and pathological outcomes of transanal endoscopic intersphincteric resection for low rectal cancer. World J Gastrointest Oncol 2024; 16:933-944. [PMID: 38577453 PMCID: PMC10989362 DOI: 10.4251/wjgo.v16.i3.933] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/18/2023] [Revised: 11/05/2023] [Accepted: 12/29/2023] [Indexed: 03/12/2024] Open
Abstract
BACKGROUND Transanal endoscopic intersphincteric resection (ISR) surgery currently lacks sufficient clinical research and reporting. AIM To investigate the clinical effectiveness of transanal endoscopic ISR, in order to promote the clinical application and development of this technique. METHODS This study utilized a retrospective case series design. Clinical and pathological data of patients with lower rectal cancer who underwent transanal endoscopic ISR at the First Affiliated Hospital of Xiamen University between May 2018 and May 2023 were included. All patients underwent transanal endoscopic ISR as the surgical approach. We conducted this study to determine the perioperative recovery status, postoperative complications, and pathological specimen characteristics of this group of patients. RESULTS This study included 45 eligible patients, with no perioperative mortalities. The overall incidence of early complications was 22.22%, with a rate of 4.44% for Clavien-Dindo grade ≥ III events. Two patients (4.4%) developed anastomotic leakage after surgery, including one case of grade A and one case of grade B. Postoperative pathological examination confirmed negative circumferential resection margins and distal resection margins in all patients. The mean distance between the tumor lower margin and distal resection margin was found to be 2.30 ± 0.62 cm. The transanal endoscopic ISR procedure consistently yielded high quality pathological specimens. CONCLUSION Transanal endoscopic ISR is safe, feasible, and provides a clear anatomical view. It is associated with a low incidence of postoperative complications and favorable pathological outcomes, making it worth further research and application.
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Affiliation(s)
- Zhi-Wen Xu
- Department of Gastrointestinal Oncology Surgery, The First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen 361000, Fujian Province, China
| | - Jing-Tao Zhu
- Department of Gastrointestinal Oncology Surgery, The First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen 361000, Fujian Province, China
| | - Hao-Yu Bai
- Department of Gastrointestinal Oncology Surgery, The First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen 361000, Fujian Province, China
| | - Xue-Jun Yu
- Department of Gastrointestinal Oncology Surgery, The First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen 361000, Fujian Province, China
| | - Qing-Qi Hong
- Department of Gastrointestinal Oncology Surgery, The First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen 361000, Fujian Province, China
| | - Jun You
- Department of Gastrointestinal Oncology Surgery, The First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen 361000, Fujian Province, China
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Yokoyama Y, Nozawa H, Sasaki K, Murono K, Emoto S, Matsuzaki H, Abe S, Nagai Y, Yoshioka Y, Shinagawa T, Sonoda H, Hojo D, Ishihara S. Essential anatomy for lateral lymph node dissection. Ann Coloproctol 2023; 39:457-466. [PMID: 38062625 PMCID: PMC10781605 DOI: 10.3393/ac.2023.00164.0023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Revised: 03/19/2023] [Accepted: 03/29/2023] [Indexed: 01/09/2024] Open
Abstract
In Western countries, the gold-standard therapeutic strategy for rectal cancer is preoperative chemoradiotherapy (CRT) following total mesorectal excision (TME), without lateral lymph node dissection (LLND). However, preoperative CRT has recently been reported to be insufficient to control lateral lymph node recurrence in cases of enlarged lateral lymph nodes before CRT, and LLND is considered necessary in such cases. We performed a literature review on aspects of pelvic anatomy associated with rectal surgery and LLND, and then combined this information with our experience and knowledge of pelvic anatomy. In this review, drawing upon research using a 3-dimensional anatomical model and actual operative views, we aimed to clarify the essential anatomy for LLND. The LLND procedure was developed in Asian countries and can now be safely performed in terms of functional preservation. Nonetheless, the longer operative time, hemorrhage, and higher complication rates with TME accompanied by LLND than with TME alone indicate that LLND is still a challenging procedure. Laparoscopic or robotic LLND has been shown to be useful and is widely performed; however, without a sufficient understanding of anatomical landmarks, misrecognition of vessels and nerves often occurs. To perform safe and accurate LLND, understanding the landmarks of LLND is essential.
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Affiliation(s)
- Yuichiro Yokoyama
- Department of Surgical Oncology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Hiroaki Nozawa
- Department of Surgical Oncology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Kazuhito Sasaki
- Department of Surgical Oncology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Koji Murono
- Department of Surgical Oncology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Shigenobu Emoto
- Department of Surgical Oncology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Hiroyuki Matsuzaki
- Department of Surgical Oncology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Shinya Abe
- Department of Surgical Oncology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Yuzo Nagai
- Department of Surgical Oncology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Yuichiro Yoshioka
- Department of Surgical Oncology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Takahide Shinagawa
- Department of Surgical Oncology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Hirofumi Sonoda
- Department of Surgical Oncology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Daisuke Hojo
- Department of Surgical Oncology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Soichiro Ishihara
- Department of Surgical Oncology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
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Unal S, Musicki B, Burnett AL. Cavernous nerve mapping methods for radical prostatectomy. Sex Med Rev 2023; 11:421-430. [PMID: 37500541 DOI: 10.1093/sxmrev/qead030] [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: 04/09/2023] [Revised: 06/21/2023] [Accepted: 06/23/2023] [Indexed: 07/29/2023]
Abstract
INTRODUCTION Preserving the cavernous nerves, the main autonomic nerve supply of the penis, is a major challenge of radical prostatectomy. Cavernous nerve injury during radical prostatectomy predominantly accounts for post-radical prostatectomy erectile dysfunction. The cavernous nerve is a bilateral structure that branches in a weblike distribution over the prostate surface and varies anatomically in individuals, such that standard nerve-sparing methods do not sufficiently sustain penile erection ability. As a consequence, researchers have focused on developing personalized cavernous nerve mapping methods applied to the surgical procedure aiming to improve postoperative sexual function outcomes. OBJECTIVES We provide an updated overview of preclinical and clinical data of cavernous nerve mapping methods, emphasizing their strengths, limitations, and future directions. METHODS A literature review was performed via Scopus, PubMed, and Google Scholar for studies that describe cavernous nerve mapping/localization. RESULTS Several cavernous nerve mapping methods have been investigated based on various properties of the nerve structures including stimulation techniques, spectroscopy/imaging techniques, and assorted combinations of these methods. More recent methods have portrayed the course of the main cavernous nerve as well as its branches based on real-time mapping, high-resolution imaging, and functional imaging. However, each of these methods has distinctive limitations, including low spatial accuracy, lack of standardization for stimulation and response measurement, superficial imaging depth, toxicity risk, and lack of suitability for intraoperative use. CONCLUSION While various cavernous nerve mapping methods have provided improvements in identification and preservation of the cavernous nerve during radical prostatectomy, no method has been implemented in clinical practice due to their distinctive limitations. To overcome the limitations of existing cavernous nerve mapping methods, the development of new imaging techniques and mapping methods is in progress. There is a need for further research in this area to improve sexual function outcomes and quality of life after radical prostatectomy.
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Affiliation(s)
- Selman Unal
- The James Buchanan Brady Urological Institute and Department of Urology, Johns Hopkins University School of Medicine, Baltimore, MD 21287, United States
- Department of Urology, Ankara Yildirim Beyazit University School of Medicine, Ankara 06800, Turkey
| | - Biljana Musicki
- The James Buchanan Brady Urological Institute and Department of Urology, Johns Hopkins University School of Medicine, Baltimore, MD 21287, United States
| | - Arthur L Burnett
- The James Buchanan Brady Urological Institute and Department of Urology, Johns Hopkins University School of Medicine, Baltimore, MD 21287, United States
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Yu C, Yao J, He Y, Huang J, Chen M, Qian M, Lou D, Zhou Z, Chen F. Effects of surgery versus radiotherapy in patients with localized prostate cancer in terms of urinary, bowel, and sexual domains. Cancer Med 2023; 12:18176-18188. [PMID: 37519062 PMCID: PMC10524086 DOI: 10.1002/cam4.6395] [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: 05/02/2023] [Revised: 07/18/2023] [Accepted: 07/20/2023] [Indexed: 08/01/2023] Open
Abstract
BACKGROUND The health-related quality of life (HRQoL) of patients with localized prostate cancer (LPCa) after treatment mainly surgery and radiotherapy (RT) has received increasing attention. The aim of this study is to compare the HRQoL of LPCa after surgery and RT. METHODS Web of Science, Embase, PubMed and Cochrane databases were searched after January 2000 to observe the HRQoL scores after surgery and RT at different treatment time points. RESULTS A total of 28 studies were included in this study, and the results showed that LPCa received surgery had better bowel scores than RT at ≤3 (weighted mean differences [WMD] = 4.18; p = 0.03), 3-6 (WMD = 4.16; p < 0.001), 6-12 (WMD = 2.99; p = 0.004), 24-60 (WMD = 1.87; p = 0.06), and ≥60 (WMD = 4.54; p = 0.02) months. However, LPCa received RT had higher urinary scores at ≤3 (WMD = -7.39; p = 0.02), 3-6 (WMD = -6.03; p = 0.02), 6-12 (WMD = -4.90; p < 0.001), 24-60 (WMD = -3.96; p < 0.001), ≥60 (WMD = -2.95; p < 0.001) months and had better sexual scores at ≤3 (WMD = -13.58; p = 0.09), 3-6 (WMD = -12.32; p = 0.06), 6-12 (WMD = -12.03; p = 0.002), 24-60 (WMD = -11.29; p < 0.001), and ≥60 (WMD = -3.10; p = 0.46) months than surgery. The scores difference between surgery and RT decreased over time. CONCLUSION Overall, for LPCa, surgery was associated with better HRQoL in the bowel domain, whereas RT was associated with better HRQoL in the urinary and sexual domains, with the difference between surgery and RT narrowing over time.
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Affiliation(s)
- Chao Yu
- Department of Urology, Ningbo Medical Center LiHuiLi HospitalNingbo UniversityNingboChina
| | - Jie Yao
- School of Public HealthZhejiang Chinese Medical UniversityHangzhouChina
| | - Yujing He
- The Second Clinical Medical CollegeZhejiang Chinese Medical UniversityHangzhouChina
| | - Jianing Huang
- School of Public HealthZhejiang Chinese Medical UniversityHangzhouChina
| | - Meiling Chen
- School of Public HealthZhejiang Chinese Medical UniversityHangzhouChina
| | - Mingxia Qian
- School of Public HealthShanghai Jiao Tong University School of MedicineShanghaiChina
| | - Dandi Lou
- The First Clinical Medical CollegeZhejiang Chinese Medical UniversityHangzhouChina
| | - Zhizhen Zhou
- School of Public HealthZhejiang Chinese Medical UniversityHangzhouChina
| | - Feng Chen
- Urology DepartmentNingbo Yinzhou No. 2 HospitalNingboChina
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Novacescu D, Nesiu A, Bardan R, Latcu SC, Dema VF, Croitor A, Raica M, Cut TG, Walter J, Cumpanas AA. Rats, Neuregulins and Radical Prostatectomy: A Conceptual Overview. J Clin Med 2023; 12:jcm12062208. [PMID: 36983210 PMCID: PMC10051646 DOI: 10.3390/jcm12062208] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Revised: 03/06/2023] [Accepted: 03/10/2023] [Indexed: 03/14/2023] Open
Abstract
In the contemporary era of early detection, with mostly curative initial treatment for prostate cancer (PC), mortality rates have significantly diminished. In addition, mean age at initial PC diagnosis has decreased. Despite technical advancements, the probability of erectile function (EF) recovery post radical prostatectomy (RP) has not significantly changed throughout the last decade. Due to virtually unavoidable intraoperative cavernous nerve (CN) lesions and operations with younger patients, post-RP erectile dysfunction (ED) has now begun affecting these younger patients. To address this pervasive limitation, a plethora of CN lesion animal model investigations have analyzed the use of systemic/local treatments for EF recovery post-RP. Most promisingly, neuregulins (NRGs) have demonstrated neurotrophic effects in both neurodegenerative disease and peripheral nerve injury models. Recently, glial growth factor 2 (GGF2) has demonstrated far superior, dose-dependent, neuroprotective/restorative effects in the CN injury rat model, as compared to previous therapeutic counterparts. Although potentially impactful, these initial findings remain limited and under-investigated. In an effort to aid clinicians, our paper reviews post-RP ED pathogenesis and currently available therapeutic tools. To stimulate further experimentation, a standardized preparation protocol and in-depth analysis of applications for the CN injury rat model is provided. Lastly, we report on NRGs, such as GGF2, and their potentially revolutionary clinical applications, in hopes of identifying relevant future research directions.
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Affiliation(s)
- Dorin Novacescu
- Doctoral School, Victor Babes University of Medicine and Pharmacy Timisoara, E. Murgu Square, Nr. 2, 300041 Timisoara, Romania
| | - Alexandru Nesiu
- Department Medicine, Discipline of Urology, Vasile Goldiş Western University, Liviu Rebreanu Boulevard, Nr. 86, 310414 Arad, Romania
- Correspondence: ; Tel.: +40-753521488
| | - Razvan Bardan
- Department XV, Discipline of Urology, Victor Babes University of Medicine and Pharmacy Timisoara, E. Murgu Square, Nr. 2, 300041 Timisoara, Romania
| | - Silviu Constantin Latcu
- Doctoral School, Victor Babes University of Medicine and Pharmacy Timisoara, E. Murgu Square, Nr. 2, 300041 Timisoara, Romania
- Department XV, Discipline of Urology, Victor Babes University of Medicine and Pharmacy Timisoara, E. Murgu Square, Nr. 2, 300041 Timisoara, Romania
| | - Vlad Filodel Dema
- Doctoral School, Victor Babes University of Medicine and Pharmacy Timisoara, E. Murgu Square, Nr. 2, 300041 Timisoara, Romania
- Department XV, Discipline of Urology, Victor Babes University of Medicine and Pharmacy Timisoara, E. Murgu Square, Nr. 2, 300041 Timisoara, Romania
| | - Alexei Croitor
- Doctoral School, Victor Babes University of Medicine and Pharmacy Timisoara, E. Murgu Square, Nr. 2, 300041 Timisoara, Romania
- Department XV, Discipline of Urology, Victor Babes University of Medicine and Pharmacy Timisoara, E. Murgu Square, Nr. 2, 300041 Timisoara, Romania
| | - Marius Raica
- Department II, Discipline of Histology, Victor Babes University of Medicine and Pharmacy Timisoara, E. Murgu Square, Nr. 2, 300041 Timisoara, Romania
- Angiogenesis Research Center, Victor Babes University of Medicine and Pharmacy Timisoara, E. Murgu Square, Nr. 2, 300041 Timisoara, Romania
| | - Talida Georgiana Cut
- Doctoral School, Victor Babes University of Medicine and Pharmacy Timisoara, E. Murgu Square, Nr. 2, 300041 Timisoara, Romania
- Department XIII, Discipline of Infectious Diseases, Victor Babes University of Medicine and Pharmacy Timisoara, E. Murgu Square, Nr. 2, 300041 Timisoara, Romania
- Center for Ethics in Human Genetic Identifications, Victor Babes University of Medicine and Pharmacy Timisoara, E. Murgu Square, Nr. 2, 300041 Timisoara, Romania
| | - James Walter
- Emeritus, Department of Urology, Loyola Medical Center, Maywood, IL 60153, USA
| | - Alin Adrian Cumpanas
- Department XV, Discipline of Urology, Victor Babes University of Medicine and Pharmacy Timisoara, E. Murgu Square, Nr. 2, 300041 Timisoara, Romania
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Morphological Peculiarities of the Pelvic Autonomic Nervous System and Their Impact on Clinical Interventions in the Lesser Pelvic Region. MEDICINA (KAUNAS, LITHUANIA) 2022; 59:medicina59010072. [PMID: 36676696 PMCID: PMC9861675 DOI: 10.3390/medicina59010072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/29/2022] [Revised: 12/23/2022] [Accepted: 12/26/2022] [Indexed: 12/30/2022]
Abstract
Background: The aim of the work is to define the morphological peculiarities of the pelvic autonomic nervous system (ANS) and their importance in the clinical and surgical interventions in the lesser pelvis. Material and methods: Anatomical variations in the formation of the pelvic ANS were observed in 20 cadavers. The study included 17 men (85%), aged 18 to 84, and 3 women, aged 27 to 86. The average age was 53.8 years. The subjects most often died by violent death in car accidents, by asphyxia, or by sudden death. The study was approved by the Ethics Committee of the Health Care Surveillance Authority, Bratislava, Slovakia. We studied cadavers without congenital or detected anomalies, cancer, deformities of the body, or spinal or abdominal surgeries within 24 h of death. We observed a relationship between the dimensions and the number of ganglia, as well as the number and course of nerve branches and anastomoses. In the pelvic area, we observed the hypogastric plexus superior, hypogastric plexus inferior, and the truncus sympathicus. In all cadavers, we clarified the lumbosacral plexuses after evisceration. In the lumbosacral region, the roots were defined based on their participation in the formation of the plexuses. To show the intimate relationship between both systems, we also focused on the details of the structure (rami communicantes) related to the connections of the ANS with the spinal nervous system. Results: Anatomical variations in the formation of the pelvic ANS were observed in all cases. We included cases with more than two truncus sympathicus ganglia as the segmental type. The segmental form occurred in 14 (70%) cases, and was concentrated in 6 (30%) cases. Rami communicantes provided anastomoses to the spinal nerves. Small ganglia were observed on the rami communicantes. With the concentrated type, we observed the division of the sympathetic and parasympathetic systems. With the segmental and concentrated forms, symptoms of the "diffuse form" may occur, which we observed in all cases. We observed significant right-left asymmetry and differences in the formation of ganglia and anastomoses. Conclusions: This study allowed us to identify and describe the morphological peculiarities of the pelvic ANS and their possible influence on the clinical picture. Asymmetry and dependence of their occurrence on the type of ANS was observed. The variations were frequent. Their preoperative diagnosis is difficult to impossible. The absence or lack of intraoperative vigilance can lead to the damage of pelvic ANS during operations and blockades of the pelvic plexus. The acquired knowledge can be helpful in clarifying clinical signs and symptoms of these conditions.
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Palma-Zamora I, Abdollah F, Rogers C, Jeong W. Robot-assisted radical prostatectomy: Advancements in surgical technique and perioperative care. Front Surg 2022; 9:944561. [PMID: 36238861 PMCID: PMC9551271 DOI: 10.3389/fsurg.2022.944561] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2022] [Accepted: 09/01/2022] [Indexed: 11/15/2022] Open
Abstract
We reviewed the evolving strategies, practice patterns, and recent advancements aimed at improving the perioperative and surgical outcomes in patients undergoing robot-assisted radical prostatectomy for the management of localized prostate cancer.
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Randolph JT, Pak ES, McMains JC, Koontz BF, Hannan JL. Cocultured Schwann Cells Rescue Irradiated Pelvic Neuron Outgrowth and Increase Survival. J Sex Med 2022; 19:1333-1342. [DOI: 10.1016/j.jsxm.2022.06.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Revised: 05/13/2022] [Accepted: 06/11/2022] [Indexed: 10/17/2022]
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Pedraza AM. ¿Cómo mejorar la función eréctil post-prostatectomía radical? UROLOGÍA COLOMBIANA 2022. [DOI: 10.1055/s-0042-1757160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022] Open
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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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Pedraza AM, Wagaskar V, Parekh S, Tewari A. Technical advances in nerve-sparing and continence preservation. Curr Opin Urol 2022; 32:204-210. [PMID: 34954705 DOI: 10.1097/mou.0000000000000958] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
PURPOSE OF REVIEW Urinary incontinence and erectile dysfunction are common after radical prostatectomy. These side effects greatly impact patients' quality of life. Therefore, surgical techniques and technology tools are constantly being developed to optimize trifecta outcomes. Here we focus on advances in nerve-sparing (NS) and continence preservation. RECENT FINDINGS New surgical techniques dedicated to preservation rather than reconstruction have been developed to improve urinary continence (UC) and NS. On the other hand, intraoperative assessment of prostatic and periprostatic structures has shown promising outcomes toward NS whereas avoiding omission of extracapsular extension (ECE). Likewise, neural regeneration strategies are under research to improve return of erectile function and UC. SUMMARY Superb outcomes after Robot-Assisted Radical Prostatectomy require a proper balance between NS and risk of ECE. Detailed anatomic knowledge together with an accurate surgical planning are cornerstone for tailoring the approach in each case.
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Affiliation(s)
- Adriana M Pedraza
- Department of Urology, Icahn School of Medicine at Mount Sinai, New York City, New York, USA
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Hoeh B, Wenzel M, Hohenhorst L, Köllermann J, Graefen M, Haese A, Tilki D, Walz J, Kosiba M, Becker A, Banek S, Kluth LA, Mandel P, Karakiewicz PI, Chun FKH, Preisser F. Anatomical Fundamentals and Current Surgical Knowledge of Prostate Anatomy Related to Functional and Oncological Outcomes for Robotic-Assisted Radical Prostatectomy. Front Surg 2022; 8:825183. [PMID: 35273992 PMCID: PMC8901727 DOI: 10.3389/fsurg.2021.825183] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Accepted: 12/27/2021] [Indexed: 01/23/2023] Open
Abstract
Context Meticulous knowledge about the anatomy of the prostate and surrounding tissue represents a crucial and mandatory requirement during radical prostatectomy for reliable oncological and excellent replicable, functional outcomes. Since its introduction two decades ago, robotic-assisted laparoscopic radical prostatectomy (RALP) has evolved to become the predominant surgical approach in many industrialized countries. Objective To provide and highlight currently available literature regarding prostate anatomy and to help in improving oncological and functional outcomes in RALP. Methods/Evidence Acquiring PubMed database was searched using the following keywords: “robotic-assisted radical prostatectomy,” “anatomy,” “neurovascular bundle,” “nerve,” “periprostatic fascia,” “pelvis,” “sphincter,” “urethra,” “urinary incontinence,” and “erectile dysfunction.” Relevant articles and book chapters were critically reviewed and if eligible, they were included in this review. Results New evidence in regards to prostatic anatomy and surgical approaches in RALP has been reported in recent years. Besides detailed anatomical studies investigating the meticulous structure of the fascial structures surrounding the prostate and neurovascular bundle preservation, debate about the optimal RALP approach is still ongoing, inspired by recent publications presenting promising functional outcomes following modifications in surgical approaches. Conclusions This review provides a detailed overview of the current knowledge of prostate anatomy, its surrounding tissue, and its influence on key surgical step development for RALP.
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Affiliation(s)
- Benedikt Hoeh
- Department of Urology, University Hospital Frankfurt, Goethe University Frankfurt am Main, Frankfurt am Main, Germany
- Cancer Prognostics and Health Outcomes Unit, Division of Urology, University of Montréal Health Center, Montréal, QC, Canada
- *Correspondence: Benedikt Hoeh
| | - Mike Wenzel
- Department of Urology, University Hospital Frankfurt, Goethe University Frankfurt am Main, Frankfurt am Main, Germany
| | - Lukas Hohenhorst
- Cancer Prognostics and Health Outcomes Unit, Division of Urology, University of Montréal Health Center, Montréal, QC, Canada
- Martini-Klinik Prostate Cancer Center, University Hospital Hamburg-Eppendorf, Hamburg, Germany
| | - Jens Köllermann
- Dr. Senckenberg Institute of Pathology, University Hospital Frankfurt, Frankfurt am Main, Germany
| | - Markus Graefen
- Martini-Klinik Prostate Cancer Center, University Hospital Hamburg-Eppendorf, Hamburg, Germany
| | - Alexander Haese
- Martini-Klinik Prostate Cancer Center, University Hospital Hamburg-Eppendorf, Hamburg, Germany
| | - Derya Tilki
- Martini-Klinik Prostate Cancer Center, University Hospital Hamburg-Eppendorf, Hamburg, Germany
- Department of Urology, University Hospital Hamburg-Eppendorf, Hamburg, Germany
- Department of Urology, Koc University Hospital, Istanbul, Turkey
| | - Jochen Walz
- Department of Urology, Institut Paoli-Calmettes Cancer Centre, Marseille, France
| | - Marina Kosiba
- Department of Urology, University Hospital Frankfurt, Goethe University Frankfurt am Main, Frankfurt am Main, Germany
| | - Andreas Becker
- Department of Urology, University Hospital Frankfurt, Goethe University Frankfurt am Main, Frankfurt am Main, Germany
| | - Severine Banek
- Department of Urology, University Hospital Frankfurt, Goethe University Frankfurt am Main, Frankfurt am Main, Germany
| | - Luis A. Kluth
- Department of Urology, University Hospital Frankfurt, Goethe University Frankfurt am Main, Frankfurt am Main, Germany
| | - Philipp Mandel
- Department of Urology, University Hospital Frankfurt, Goethe University Frankfurt am Main, Frankfurt am Main, Germany
| | - Pierre I. Karakiewicz
- Cancer Prognostics and Health Outcomes Unit, Division of Urology, University of Montréal Health Center, Montréal, QC, Canada
| | - Felix K. H. Chun
- Department of Urology, University Hospital Frankfurt, Goethe University Frankfurt am Main, Frankfurt am Main, Germany
| | - Felix Preisser
- Department of Urology, University Hospital Frankfurt, Goethe University Frankfurt am Main, Frankfurt am Main, Germany
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Tzelves L, Protogerou V, Varkarakis I. Denonvilliers’ Fascia: The Prostate Border to the Outside World. Cancers (Basel) 2022; 14:cancers14030688. [PMID: 35158956 PMCID: PMC8833507 DOI: 10.3390/cancers14030688] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2021] [Revised: 01/23/2022] [Accepted: 01/27/2022] [Indexed: 11/27/2022] Open
Abstract
Simple Summary Prostate cancer is a very common neoplasm in men, with surgery being a valuable tool for its successful management. The prostate gland lies deep in the male pelvis with several sheets of fibrous membranes surrounding it along anterior, lateral, and posterior surfaces. These membranes are called fasciae. Arteries, veins, and nerve fibers that are important for erectile function and continence can be found within these fasciae. An important fascia covering the posterior surface of the prostate and separating it from the rectum is Denonvilliers’ fascia. This structure is important for the confinement of cancer within the prostate and for completing an operation without damaging the nerves responsible for erectile function and continence while also removing all neoplastic tissue. This review covers the anatomical aspects of this structure, along with providing some clinical insight on how to use this knowledge to improve clinical outcomes. Abstract The fascial structure around the prostate has been a controversial issue for several decades, but its role in radical prostatectomy is crucial to achieving successful nerve-sparing surgery. One of the fasciae surrounding the prostate is Denonvilliers’ fascia, forming its posterior border with the rectum and enclosing along its layers several fibers of the neurovascular bundle. This review focuses on embryological and anatomical points of Denonvilliers’ fascia, aiming to provide a summary for the operating general surgeons and urologists of this area.
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Affiliation(s)
- Lazaros Tzelves
- 2nd Department of Urology, National and Kapodistrian University of Athens, Sismanogleion Hospital, 11526 Athens, Greece;
- Correspondence:
| | - Vassilis Protogerou
- Department of Anatomy, School of Medicine, National and Kapodistrian University of Athens, Mikras Asias 21 St., 12462 Athens, Greece;
- 3rd Urological Department, Attikon University Hospital, School of Medicine, National and Kapodistrian University of Athens, Rimini 1, 12462 Athens, Greece
| | - Ioannis Varkarakis
- 2nd Department of Urology, National and Kapodistrian University of Athens, Sismanogleion Hospital, 11526 Athens, Greece;
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Di Paola V, Totaro A, Avesani G, Gui B, Boni A, Esperto F, Valentini V, Manfredi R. Correlation between FA and ADC, number and length of the periprostatic neurovascular fibers. Urologia 2021; 89:535-540. [PMID: 34961378 DOI: 10.1177/03915603211063769] [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: 11/16/2022]
Abstract
PURPOSE Our aim was to explore the relation between FA and ADC, number and length of the periprostatic neurovascular fibers (PNF) by means of 1.5 T Diffusion Tensor Imaging (DTI) imaging through a multivariate linear regression analysis model. METHODS For this retrospective study, 56 patients (mean age 63.5 years), who underwent 1.5-T prostate MRI, including DTI, were enrolled between October 2014 and December 2018. Multivariate regression analysis was performed to evaluate the statistically significant correlation between FA values (dependent variable) and ADC, the number and the length of PNF (independent variables), if p-value <0.05. A value of 0.5 indicated poor agreement; 0.5-0.75, moderate agreement; 0.75-0.9, good agreement; 0.61-0.80, good agreement; and 0.9-1.00, excellent agreement. RESULTS The overall fit of the multivariate regression model was excellent, with R2 value of 0.9445 (R2 adjusted 0.9412; p < 0.0001). Multivariate linear regression analysis showed a statistically significant correlation (p < 0.05) for all the three independent variables. The r partial value was -0.9612 for ADC values (p < 0.0001), suggesting a strong negative correlation, 0.4317 for the number of fiber tracts (p < 0.001), suggesting a moderate positive correlation, and -0.306 for the length of the fiber tracts (p < 0.05), suggesting a weak negative correlation. CONCLUSIONS Our multivariate linear regression model has demonstrated a statistically significant correlation between FA values of PNF with other DTI parameters, in particular with ADC.
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Affiliation(s)
- Valerio Di Paola
- Dipartimento di Diagnostica per Immagini, Radioterapia Oncologica ed Ematologia, UOC di Radiologia, Fondazione Policlinico Universitario A. Gemelli IRCSS, Roma, Italia
| | - Angelo Totaro
- Dipartimento di Scienze Gastroenterologiche, Endocrino-Metaboliche e Nefro-Urologiche, UOC di Urologia, Fondazione Policlinico Universitario A. Gemelli IRCCS, Roma, Italia
| | - Giacomo Avesani
- Dipartimento di Diagnostica per Immagini, Radioterapia Oncologica ed Ematologia, UOC di Radiologia, Fondazione Policlinico Universitario A. Gemelli IRCSS, Roma, Italia
| | - Benedetta Gui
- Dipartimento di Diagnostica per Immagini, Radioterapia Oncologica ed Ematologia, UOC di Radiologia, Fondazione Policlinico Universitario A. Gemelli IRCSS, Roma, Italia
| | - Andrea Boni
- Departement Surgical and Biomedical Sciences, Division of Urological, Andrological Surgery and Minimally-Invasive Techinques, University of Perugia, Perugia, Italy
| | - Francesco Esperto
- Department of Urology, Campus Bio-Medico University Hospital, Roma, Italy
| | - Vincenzo Valentini
- Dipartimento di Diagnostica per Immagini, Radioterapia Oncologica ed Ematologia, UOC di Radioterapia Oncologica, Fondazione Policlinico Universitario A. Gemelli IRCCS, Roma, Italia.,Università Cattolica del Sacro Cuore, Facoltà di Medicina e Chirurgia, Roma, Italia
| | - Riccardo Manfredi
- Dipartimento di Diagnostica per Immagini, Radioterapia Oncologica ed Ematologia, UOC di Radiologia, Università Cattolica del Sacro Cuore, Fondazione Policlinico Universitario A. Gemelli IRCCS, Roma, Italia
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Sood A, Jeong W, Palma-Zamora I, Abdollah F, Butaney M, Corsi N, Wurst H, Arora S, Kachroo N, Hassan O, Gupta N, Gorin MA, Menon M. Description of Surgical Technique and Oncologic and Functional Outcomes of the Precision Prostatectomy Procedure (IDEAL Stage 1-2b Study). Eur Urol 2021; 81:396-406. [PMID: 34872786 DOI: 10.1016/j.eururo.2021.10.017] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2021] [Revised: 09/23/2021] [Accepted: 10/08/2021] [Indexed: 12/24/2022]
Abstract
BACKGROUND The existing treatment options for men with intermediate- or high-volume low-risk prostate cancer (PCa) are associated with a substantial risk of over- or undertreatment. The development of risk-adjusted therapies is an unmet need for these patients. OBJECTIVE To describe our novel technique of precision prostatectomy, a form of surgical focal therapy that allows radical excision of the index PCa lesion along with >90% prostatic tissue extirpation while preserving the prostatic capsule and seminal vesicle/vas deferens complex on the side contralateral to the dominant cancer lesion, and to report on medium-term functional and oncologic outcomes in the first 88 consecutive men who underwent this procedure between December 2016 and January 2020. DESIGN, SETTING, AND PARTICIPANTS Men with (1) prostate-specific antigen (PSA) ≤20 ng/ml, (2) clinical T stage ≤cT2, (3) a dominant unilateral lesion with Gleason ≤ 4 + 3 disease with any number or percentage of cores involved ipsilaterally on prostate biopsy, (4) no primary Gleason ≥4 lesion contralaterally, and (5) a preoperative Sexual Health Inventory of Men (SHIM) score of ≥17 (out of 25) with/without phosphodiesterase type-5 inhibitor use who consented to undergo precision prostatectomy were included in this single-arm, single-center, IDEAL stage 2b prospective development study. INTERVENTION Robotic precision prostatectomy. OUTCOME MEASUREMENTS AND STATISTICAL ANALYSIS The safety and urinary, sexual, and oncologic outcomes of the precision prostatectomy technique were studied. Descriptive statistics and Kaplan-Meier analyses were used to assess 12-mo urinary continence (0-1 pad), 12-mo sexual potency (SHIM score ≥17), 36-mo freedom from clinically significant PCa (grade group ≥2), secondary treatments, metastatic disease, and mortality. RESULTS AND LIMITATIONS At study entry, the median age, PSA, and SHIM score were 60.0 yr (interquartile range [IQR] 54.2-65.9), 5.7 ng/ml (IQR 4.2-7.1), and 22 points (IQR 19-24), respectively. The median follow-up was 25 mo (IQR 14-38). At 12 mo, all patients were continent (0-1 pads), with 90.9% of patients using 0 pads. The median time to urinary continence was 1 mo (IQR 1-4). At 12 mo, 85% of all-comers and 90.2% of the preoperatively potent men were potent. The median time to sexual potency was 4 mo (IQR 4-12). From an oncologic standpoint, at 36 mo an estimated 93.4% of the patients were free from clinically significant residual PCa and 91.7% had not undergone any additional treatment. All patients were alive and free of metastatic disease at 36 mo. CONCLUSIONS Precision prostatectomy is technically safe and reproducible and offers excellent postoperative functional results. At 36-mo follow-up, the oncologic outcomes and secondary treatment rates appear to be superior to existing ablative focal therapy results. Pending long-term data, a risk-stratified surgical approach to PCa may avoid whole-gland therapy and preserve functional quality of life in men with localized PCa. PATIENT SUMMARY Precision prostatectomy is a new form of focal therapy for intermediate-risk prostate cancer in which a 5-10-mm rim of prostate capsule is left on the opposite side of the gland to where the dominant cancer is located. The technique appears to be safe and efficacious and adds to the growing armamentarium of risk-adapted therapies for treatment of localized prostate cancer that avoid the adverse effects on urinary and erectile function of whole-gland treatments.
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Affiliation(s)
- Akshay Sood
- Vattikuti Urology Institute, Henry Ford Hospital, Detroit, MI, USA; VCORE Vattikuti Urology Institute Center for Outcomes Research, Analytics and Evaluation, Henry Ford Hospital, Detroit, MI, USA.
| | - Wooju Jeong
- Vattikuti Urology Institute, Henry Ford Hospital, Detroit, MI, USA
| | | | - Firas Abdollah
- Vattikuti Urology Institute, Henry Ford Hospital, Detroit, MI, USA; VCORE Vattikuti Urology Institute Center for Outcomes Research, Analytics and Evaluation, Henry Ford Hospital, Detroit, MI, USA
| | - Mohit Butaney
- Vattikuti Urology Institute, Henry Ford Hospital, Detroit, MI, USA
| | - Nicholas Corsi
- Vattikuti Urology Institute, Henry Ford Hospital, Detroit, MI, USA
| | - Hallie Wurst
- Vattikuti Urology Institute, Henry Ford Hospital, Detroit, MI, USA
| | - Sohrab Arora
- Vattikuti Urology Institute, Henry Ford Hospital, Detroit, MI, USA
| | - Naveen Kachroo
- Vattikuti Urology Institute, Henry Ford Hospital, Detroit, MI, USA
| | - Oudai Hassan
- Department of Pathology, Henry Ford Hospital, Detroit, MI, USA
| | - Nilesh Gupta
- Department of Pathology, Henry Ford Hospital, Detroit, MI, USA
| | - Michael A Gorin
- Urology Associates and UPMC Western Maryland, Cumberland, MD, USA; Department of Urology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Mani Menon
- Vattikuti Urology Institute, Henry Ford Hospital, Detroit, MI, USA; VCORE Vattikuti Urology Institute Center for Outcomes Research, Analytics and Evaluation, Henry Ford Hospital, Detroit, MI, USA; Department of Urology, Icahn School of Medicine at Mount Sinai, New York, NY, USA.
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Positional relationship between the lateral border of Denonvilliers' fascia and pelvic plexus. Anat Sci Int 2021; 97:101-109. [PMID: 34529236 DOI: 10.1007/s12565-021-00629-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Accepted: 09/08/2021] [Indexed: 01/02/2023]
Abstract
Denonvilliers' fascia is an important landmark of the dissection layer during prostate or rectal surgeries. However, there are few reports on its lateral extension. This anatomical study aimed to define the lateral border of Denonvilliers' fascia and use it as an anatomical landmark to identify the origin and distribution of the nerve branches of the pelvic plexus. We investigated the lateral extent and position of the lateral border of Denonvilliers' fascia through macroscopic examination of 12 pelvic halves from eight cadavers and histological examination of two cadavers. The Denonvilliers' fascia extended laterally to be attached to the pelvic plexus on the lateral border. The origins of nerve branches from the pelvic plexus to the pelvic organs, except the rectum, were located anterior or anterosuperior to the lateral border of Denonvilliers' fascia. The origins of nerve branches to the prostate were mainly anterior to the lateral border of Denonvilliers' fascia; however, in 3/12 pelvic halves, the nerve branches originated in the region posteroinferior to the lateral border of Denonvilliers' fascia. The attachment point of Denonvilliers' fascia to the prostate was more superior in these three pelvic halves (distance from the top point of the posterior surface of the prostate to the attachment point, 5.6 ± 1.9 mm) than that in the other nine pelvic halves (10.1 ± 3.6 mm). The lateral border of Denonvilliers' fascia is closely related to the pelvic plexus, suggesting its usefulness as an anatomical landmark to identify the origin of nerve branches from the pelvic plexus.
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Sood A, Jeong W, Keeley J, Abdollah F, Hassan O, Gupta N, Menon M. Subtotal surgical therapy for localized prostate cancer: a single-center precision prostatectomy experience in 25 patients, and SEER-registry data analysis. Transl Androl Urol 2021; 10:3155-3166. [PMID: 34430418 PMCID: PMC8350248 DOI: 10.21037/tau-20-1476] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Accepted: 05/18/2021] [Indexed: 11/22/2022] Open
Abstract
Background We recently described a novel form of focal therapy for prostate cancer (CaP)—the precision prostatectomy. Here we report on the first 25 consecutive patients. Further, utilizing Surveillance Epidemiology and End Results (SEER)-registry data, we assess long-term oncological efficacies of various focal therapy techniques. Methods Men who met the criteria: (I) PSA ≤15 ng/mL, (II) stage ≤cT2, (III) dominant unilateral lesion with Gleason ≤4+3 with any number or percentage (%) of cores involved ipsilaterally on biopsy, (IV) no primary Gleason ≥4 contralaterally, and (V) preoperative erectile function score (IIEF-5/SHIM) of ≥17 with/without PDE-5i were included in this prospective, single-arm, IDEAL stage 2b study (December 2016 to July 2017). Safety of the technique, and intermediate-term urinary, sexual and oncological outcomes were studied. Descriptive statistics and Kaplan-Meier (KM) analysis were used to assess 12-month urinary continence (0–1 pad), 12-month sexual potency (SHIM ≥17), and 36-month freedom from clinically-significant CaP (grade group ≥2), radical treatment, metastatic disease and mortality. SEER-registry was queried to evaluate CaP-specific survival in patients undergoing hyperthermia, cryotherapy, or segmental prostatectomy. Results At study entry, the median (IQR) age, PSA and SHIM score were 56.5 (53.1–62.3) years, 4.2 (3.8–5.9) ng/mL and 23 [20–25], respectively. Only 1 patient met the Epstein criteria for active surveillance. All patients were followed for a minimum of 2 years. At 12 months, from a functional standpoint, all patients were continent. Twenty-three (92%) patients were potent at 12 months. From an oncological standpoint, at 36 months, the KM analysis (95% CI) demonstrated a 96.2% (92.9–98.7) rate of freedom from clinically-significant CaP and a 92.7% (88.9–97.2) rate of freedom from radical treatment. All patients were alive and free of metastatic disease at the latest follow-up. Analysis of the SEER-registry data demonstrated 10-year CaP-specific survival rates of 91.6% to 97.7% among the 3 studied modalities, P=0.298. Conclusions Precision prostatectomy is feasible, technically safe, and offers excellent postoperative functional results. At 36 months of follow-up, the oncological outcomes and secondary procedure rates appear to be at-par with the ablative forms of focal therapy.
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Affiliation(s)
- Akshay Sood
- Vattikuti Urology Institute, Henry Ford Hospital, Detroit, MI, USA.,VCORE - Vattikuti Urology Institute Center for Outcomes Research, Analytics and Evaluation, Henry Ford Hospital, Detroit, MI, USA
| | - Wooju Jeong
- Vattikuti Urology Institute, Henry Ford Hospital, Detroit, MI, USA
| | - Jacob Keeley
- VCORE - Vattikuti Urology Institute Center for Outcomes Research, Analytics and Evaluation, Henry Ford Hospital, Detroit, MI, USA
| | - Firas Abdollah
- Vattikuti Urology Institute, Henry Ford Hospital, Detroit, MI, USA.,VCORE - Vattikuti Urology Institute Center for Outcomes Research, Analytics and Evaluation, Henry Ford Hospital, Detroit, MI, USA
| | - Oudai Hassan
- Department of Pathology, Henry Ford Hospital, Detroit, MI, USA
| | - Nilesh Gupta
- Department of Pathology, Henry Ford Hospital, Detroit, MI, USA
| | - Mani Menon
- Vattikuti Urology Institute, Henry Ford Hospital, Detroit, MI, USA.,VCORE - Vattikuti Urology Institute Center for Outcomes Research, Analytics and Evaluation, Henry Ford Hospital, Detroit, MI, USA
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Di Paola V, Totaro A, Gui B, Miccò M, Rodolfino E, Avesani G, Panico C, Gigli R, Cybulski A, Valentini V, Bassi P, Manfredi R. Depiction of periprostatic nerve fibers by means of 1.5 T diffusion tensor imaging. Abdom Radiol (NY) 2021; 46:2760-2769. [PMID: 32737544 DOI: 10.1007/s00261-020-02682-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Revised: 06/19/2020] [Accepted: 07/22/2020] [Indexed: 11/27/2022]
Abstract
PURPOSE The knowledge of periprostatic nerve fiber (pNF) is still incomplete by means of conventional MRI. The purpose of our study was to demonstrate if DTI imaging is able to depict anatomical features of pNF. METHODS For this retrospective study, fifty-six patients (mean age 63.5 years), who underwent 1.5-T prostate MRI, including 32 directions DTI, were enrolled between October 2014 and December 2018. ANOVA test and Student's t-test were performed between the mean values of the number, FA values, and fiber length of pNF between base and mid-gland, mid-gland and apex, base and apex, right and left side, and anterior and posterior face of the prostate. A qualitative analysis was performed to detect the main orientation of pNF through a colorimetric 3D tractographic reconstruction. RESULTS The number of pNF showed a decrease from the base (322) to mid-gland (248) and apex (75) (p < 0.05). The FA values were higher at base and mid-gland (0.435 and 0.456) compared to the apex (0.313) (p < 0.05). The length of pNF was higher at apex (13.4 mm) compared to base (11.5 mm) and mid-gland (11.7 mm) (p < 0.05). The number of pNF was higher on the posterior face compared to the anterior face at base (186 vs 137), (p < 0.001). The FA values were higher on the posterior face compared to the anterior face at base (0.452 vs 0.417), mid-gland (0.483 vs 0.429), and apex (0.42 vs 0.382), (p < 0.05). The length of the pNF was higher in the posterior (14.7 mm) than in the anterior face (12 mm) at apex (p < 0.001). The main orientation of pNF was longitudinal in all patients (56/56, 100%). CONCLUSIONS DTI imaging has been demonstrated able to depict anatomical features of pNF.
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Affiliation(s)
- Valerio Di Paola
- Dipartimento di Diagnostica per Immagini, Radioterapia Oncologica ed Ematologia, UOC di Radiologia, Fondazione Policlinico Universitario A. Gemelli IRCSS, Roma, Italy.
| | - Angelo Totaro
- Dipartimento di Scienze Gastroenterologiche, Endocrino-Metaboliche e Nefro-Urologiche, UOC di Urologia-Nefrologia e Trapianto, Fondazione Policlinico Universitario A. Gemelli IRCSS, Roma, Italy
| | - Benedetta Gui
- Dipartimento di Diagnostica per Immagini, Radioterapia Oncologica ed Ematologia, UOC di Radiologia, Fondazione Policlinico Universitario A. Gemelli IRCSS, Roma, Italy
| | - Maura Miccò
- Dipartimento di Diagnostica per Immagini, Radioterapia Oncologica ed Ematologia, UOC di Radiologia, Fondazione Policlinico Universitario A. Gemelli IRCSS, Roma, Italy
| | - Elena Rodolfino
- Dipartimento di Diagnostica per Immagini, Radioterapia Oncologica ed Ematologia, UOC di Radiologia, Fondazione Policlinico Universitario A. Gemelli IRCSS, Roma, Italy
| | - Giacomo Avesani
- Dipartimento di Diagnostica per Immagini, Radioterapia Oncologica ed Ematologia, UOC di Radiologia, Fondazione Policlinico Universitario A. Gemelli IRCSS, Roma, Italy
| | - Camilla Panico
- Dipartimento di Diagnostica per Immagini, Radioterapia Oncologica ed Ematologia, UOC di Radiologia, Fondazione Policlinico Universitario A. Gemelli IRCSS, Roma, Italy
| | - Riccardo Gigli
- Istituto di Radiologia, Università Cattolica del Sacro Cuore, Roma, Italy
| | - Adam Cybulski
- Dipartimento di Radiologia, Policlinico G.B. Rossi - Università di Verona, Verona, Italy
| | - Vincenzo Valentini
- Dipartimento di Diagnostica per Immagini, Radioterapia Oncologica ed Ematologia, UOC di Radioterapia Oncologica, Fondazione Policlinico Universitario A. Gemelli IRCSS, Università Cattolica del Sacro Cuore, Roma, Italy
| | - PierFrancesco Bassi
- Dipartimento di Scienze Gastroenterologiche, Endocrino-Metaboliche e Nefro-Urologiche, UOC di Urologia-Nefrologia e Trapianto, Fondazione Policlinico Universitario A. Gemelli IRCSS, Università Cattolica del Sacro Cuore, Roma, Italy
| | - Riccardo Manfredi
- Dipartimento di Diagnostica per Immagini, Radioterapia Oncologica ed Ematologia, UOC Radiologia, Fondazione Policlinico Universitario A. Gemelli IRCSS, Università Cattolica del Sacro Cuore, Roma, Italy
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Mouli SK, Raiter S, Harris K, Mylarapu A, Burks M, Li W, Gordon AC, Khan A, Matsumoto M, Bailey KL, Pasciak AS, Manupipatpong S, Weiss CR, Casalino D, Miller FH, Gates VL, Hohlastos E, Lewandowski RJ, Kim DH, Dreher MR, Salem R. Yttrium-90 Radioembolization to the Prostate Gland: Proof of Concept in a Canine Model and Clinical Translation. J Vasc Interv Radiol 2021; 32:1103-1112.e12. [PMID: 33839262 DOI: 10.1016/j.jvir.2021.01.282] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Revised: 01/06/2021] [Accepted: 01/28/2021] [Indexed: 10/21/2022] Open
Abstract
PURPOSE To investigate the feasibility, safety, and absorbed-dose distribution of prostatic artery radioembolization (RE) in a canine model. MATERIALS AND METHODS Fourteen male castrated beagles received dihydroandrosterone/estradiol to induce prostatic hyperplasia for the duration of the study. Each dog underwent fluoroscopic prostatic artery catheterization. Yttrium-90 (90Y) microspheres (TheraSphere; Boston Scientific, Marlborough, Massachusetts) were delivered to 1 prostatic hemigland (dose escalation from 60 to 200 Gy), with the contralateral side serving as a control. Assessments for adverse events were performed throughout the follow-up (Common Terminology Criteria for Adverse Events v5.0). Positron emission tomography/magnetic resonance (MR) imaging provided a confirmation after the delivery of absorbed-dose distribution. MR imaging was performed before and 3, 20, and 40 days after RE. Tissue harvest of the prostate, rectum, bladder, urethra, penis, and neurovascular bundles was performed 60 days after RE. RESULTS All the animals successfully underwent RE. Positron emission tomography/MR imaging demonstrated localization to and good coverage of only the treated hemigland. No adverse events occurred. The MR imaging showed a significant dose-dependent decrease in the treated hemigland size at 40 days (25%-60%, P < .001). No extraprostatic radiographic changes were observed. Necropsy demonstrated no gross rectal, urethral, penile, or bladder changes. Histology revealed RE-induced changes in the treated prostatic tissues of the highest dose group, with gland atrophy and focal necrosis. No extraprostatic RE-related histologic findings were observed. CONCLUSIONS Prostate 90Y RE is safe and feasible in a canine model and leads to focal dose-dependent changes in the gland without inducing unwanted extraprostatic effects. These results suggest that an investigation of nonoperative prostate cancer is warranted.
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Affiliation(s)
- Samdeep K Mouli
- Department of Radiology, Section of Interventional Radiology, Northwestern University, Chicago, IL.
| | - Simone Raiter
- Department of Radiology, Section of Interventional Radiology, Northwestern University, Chicago, IL
| | - Kathleen Harris
- Department of Radiology, Section of Interventional Radiology, Northwestern University, Chicago, IL
| | - Amrutha Mylarapu
- Department of Radiology, Section of Interventional Radiology, Northwestern University, Chicago, IL
| | - Malcolm Burks
- Department of Radiology, Section of Interventional Radiology, Northwestern University, Chicago, IL
| | - Weiguo Li
- Department of Radiology, Section of Interventional Radiology, Northwestern University, Chicago, IL
| | - Andrew C Gordon
- Department of Radiology, Section of Interventional Radiology, Northwestern University, Chicago, IL
| | - Ali Khan
- Department of Radiology, Section of Interventional Radiology, Northwestern University, Chicago, IL
| | - Monica Matsumoto
- Department of Radiology, Section of Interventional Radiology, Northwestern University, Chicago, IL
| | - Keith L Bailey
- Veterinary Diagnostic Laboratory, University of Illinois at Urbana-Champaign, Urbana, IL
| | - Alexander S Pasciak
- Department of Radiology and Radiological Science, Division of Vascular and Interventional Radiology, The Johns Hopkins University School of Medicine, Baltimore, MD
| | - Sasicha Manupipatpong
- Department of Radiology and Radiological Science, Division of Vascular and Interventional Radiology, The Johns Hopkins University School of Medicine, Baltimore, MD
| | - Clifford R Weiss
- Department of Radiology and Radiological Science, Division of Vascular and Interventional Radiology, The Johns Hopkins University School of Medicine, Baltimore, MD
| | - David Casalino
- Department of Radiology, Section of Body Imaging, Northwestern University, Chicago, IL
| | - Frank H Miller
- Department of Radiology, Section of Body Imaging, Northwestern University, Chicago, IL
| | - Vanessa L Gates
- Department of Radiology, Section of Interventional Radiology, Northwestern University, Chicago, IL
| | - Elias Hohlastos
- Department of Radiology, Section of Interventional Radiology, Northwestern University, Chicago, IL
| | - Robert J Lewandowski
- Department of Radiology, Section of Interventional Radiology, Northwestern University, Chicago, IL
| | - Dong-Hyun Kim
- Department of Radiology, Section of Body Imaging, Northwestern University, Chicago, IL
| | | | - Riad Salem
- Department of Radiology, Section of Interventional Radiology, Northwestern University, Chicago, IL
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22
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Re-exploring the pelvic neuroanatomy from a new perspective and a potential guidance for TaTME: a "bottom-up" approach. Updates Surg 2021; 73:503-512. [PMID: 33534125 DOI: 10.1007/s13304-020-00968-3] [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: 09/22/2020] [Accepted: 12/27/2020] [Indexed: 12/15/2022]
Abstract
Neuro-anatomy of the perineum has gained renewed attention due to its significance in the transanal procedures for rectal cancer (eg TaTME). Surgeons embarking on this technique must have sophisticated knowledge and a precise anatomical understanding of the perineum before proceeding with this reversed rectal approach. We report anatomical observations deriving from a relevant experience in the colorectal surgery field. The collective multicenter experience of the present study is clinically relevant and based on the rectal and transanal resections performed in colorectal centers of excellence from Greece, UK, and Italy over the last 10 years (2011-2020). From the original anatomical and intraoperative observations derived from collective cases operated by this multicenter group of colorectal surgical centers in three European countries, data were retrieved and analyzed in collaboration with specialist researchers of human anatomy and interpreted for their clinical significance and potential use for preoperative planning and intraoperative guidance during TaTME. This descriptive article demonstrates in detail the neurogenic pathways encountered in the perineum and pelvic cavity during transanal procedures. Specific anatomical and topographic implications are also included serving as a guide for colorectal surgeons to perform a nerve-sparing procedure. transanal approach for rectal excision offers new insights into the complex pelvic and perineal neuroanatomy while the procedure itself remains a challenge for surgeons. Preoperative anatomical planning and 3D reconstruction may help in anticipating technical difficulties, resulting in more precise surgical dissections and decreased postoperative complications.
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23
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Nyangoh Timoh K, Moszkowicz D, Creze M, Zaitouna M, Felber M, Lebacle C, Diallo D, Martinovic J, Tewari A, Lavoué V, Ghukasyan G, Benoit G, Bessede T. The male external urethral sphincter is autonomically innervated. Clin Anat 2020; 34:263-271. [PMID: 33131096 DOI: 10.1002/ca.23698] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Revised: 10/19/2020] [Accepted: 10/24/2020] [Indexed: 11/11/2022]
Abstract
INTRODUCTION The aim of the present study was to describe autonomic urethral sphincter (US) innervation using specific muscular and neuronal antibody markers and 3D reconstruction. MATERIAL AND METHODS We performed en-bloc removal of the entire pelvis of three male human fetuses between 18 and 40 weeks. Serial whole mount sections (5 μm intervals) were stained and investigated. The sections were stained with Masson's trichrome and Eosin Hematoxylin, and immunostained with: anti-SMA antibody for smooth muscle; anti-S100 antibody for all nerves; and anti-PMP22 antibody, anti-TH antibody, anti-CGRP antibody, anti-NOS antibody for somatic, adrenergic, sensory and nitrergic nerve fibers, respectively. The slides were digitized for 3D reconstruction to improve topographical understanding. An animated reconstruction of the autonomic innervation of the US was generated. RESULTS The external and internal US are innervated by autonomic nerves of the inferior hypogastric plexus (IHP). These nerves are sympathetic (positive anti-TH antibody), sensory (positive anti-CGRP antibody), and nitrergic (positive anti-NOS antibody). Some autonomic fibers run within the neurovascular bundles, posterolaterally. Others run from the IHP to the posteromedial aspect of the prostate apex, above an through the rectourethral muscle. The external US is also innervated by somatic nerves (positive anti-PMP22 antibody) arising from the pudendal nerve, joining the midline but remaining below the rectourethral. CONCLUSIONS This study provides anatomical evidence of an autonomic component in the innervation of the external US that travels in the neurovascular bundle. During radical prostatectomy, the rectourethral muscle and the neurovascular bundles are to be preserved, particularly during apical dissection.
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Affiliation(s)
- Krystel Nyangoh Timoh
- UMR 1195, University Paris Sud, INSERM, Université Paris-Saclay, Le Kremlin-Bicetre, France.,Department of Obstetrics and Gynecology, Hopital Universitaire de Rennes, university Rennes 1, Rennes, France
| | - David Moszkowicz
- Université de Paris, Gastrointestinal and Metabolic Dysfunctions in Nutritional Pathologies Centre de Recherche sur l'Inflammation Paris Montmartre INSERM UMRS 1149, Paris, France.,Service de chirurgie générale et digestive, AP-HP, Hôpital Louis Mourier, DMU ESPRIT-GHU AP-HP, Nord-Université de Paris, Colombes, France
| | - Maud Creze
- UMR 1195, University Paris Sud, INSERM, Université Paris-Saclay, Le Kremlin-Bicetre, France
| | - Mazen Zaitouna
- UMR 1195, University Paris Sud, INSERM, Université Paris-Saclay, Le Kremlin-Bicetre, France
| | - Margaux Felber
- UMR 1195, University Paris Sud, INSERM, Université Paris-Saclay, Le Kremlin-Bicetre, France
| | - Cédric Lebacle
- UMR 1195, University Paris Sud, INSERM, Université Paris-Saclay, Le Kremlin-Bicetre, France.,Urology Department, Hopitaux Universitaires Paris-Sud, APHP, Le Kremlin-Bicetre, France
| | - Djibril Diallo
- UMR 1195, University Paris Sud, INSERM, Université Paris-Saclay, Le Kremlin-Bicetre, France
| | - Jelena Martinovic
- Department of Fetal Pathology, Hopitaux universitaires Paris-Sud, APHP, Clamart, France
| | - Ashutosh Tewari
- Department of Urology, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Vincent Lavoué
- Department of Obstetrics and Gynecology, Hopital Universitaire de Rennes, university Rennes 1, Rennes, France
| | - Gevorg Ghukasyan
- Université de Rennes 1, Rennes, France.,INSERM, UMR991 Liver Metabolism and Cancer, Rennes, France
| | - Gerard Benoit
- UMR 1195, University Paris Sud, INSERM, Université Paris-Saclay, Le Kremlin-Bicetre, France
| | - Thomas Bessede
- UMR 1195, University Paris Sud, INSERM, Université Paris-Saclay, Le Kremlin-Bicetre, France.,Urology Department, Hopitaux Universitaires Paris-Sud, APHP, Le Kremlin-Bicetre, France
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24
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Fung TLD, Tsukada Y, Ito M. Essential anatomy for total mesorectal excision and lateral lymph node dissection, in both trans-abdominal and trans-anal perspective. Surgeon 2020; 19:e462-e474. [PMID: 33248924 DOI: 10.1016/j.surge.2020.09.011] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Revised: 08/10/2020] [Accepted: 09/02/2020] [Indexed: 12/27/2022]
Abstract
BACKGROUND AND PURPOSE Total Mesorectal Excisions (TME) is the standard treatment of rectal cancer. It can be performed under laparoscopic, robotic or transanal approach. Inadvertent injury to surrounding structure like autonomic nerves is avoidable, no matter which approach is adopted. Lateral lymph node dissection (LLND) is a less commonly performed pelvic operation involving dissection in an unfamiliar area to most general surgeons. This article aims to clarify all the essential anatomy related to these procedures. METHODS We performed thorough literature search and revision on the pelvic anatomy. Our cases of TME and LLND, under either laparoscopic or transanal approach, were reviewed. We integrated the knowledge from literatures and our own experience. The result was presented in details, together with original figures and intra-operative photos. MAIN FINDINGS Anatomy of pelvic fascia, autonomic nerve system, anal canal and sphincter complex are core knowledge in performing TME and LLND. CONCLUSIONS Thorough understanding of the pelvic anatomy enables colorectal surgeons to master these procedures, avoid complication and perform extended resection. On the other hand, surgeons can appreciate the complex pelvic anatomy easier by seeing the pelvis in opposite angles (transabdominal and transaanal view).
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Affiliation(s)
| | - Yuichiro Tsukada
- Department of Colorectal Surgery, National Cancer Center Hospital East, Kashiwa, Japan
| | - Masaaki Ito
- Department of Colorectal Surgery, National Cancer Center Hospital East, Kashiwa, Japan
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25
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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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26
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Xiong X, Qiu S, Yi X, Jin K, Xu H, Lei H, Bai S, Peng G, Yang L, Wei Q. Effect of neurovascular bundle sparing radical cystectomy on post-operative continence and sexual function: A systematic review and meta-analysis. Andrology 2020; 9:221-232. [PMID: 32875711 DOI: 10.1111/andr.12898] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Revised: 07/16/2020] [Accepted: 08/25/2020] [Indexed: 02/05/2023]
Abstract
BACKGROUND It is unclear whether the neurovascular bundle (NVB) sparing could improve post-operative urinary continence and potency. Furthermore, concern remains regarding the impact of nerve-sparing (NS) radical cystectomy (RC) on oncological outcomes. OBJECTIVES The primary objective of this meta-analysis was to evaluate whether in men undergoing NS RC could improve post-operative urinary continence and potency. The secondary objective was to assess whether NS RC could compromise the oncological control. MATERIALS AND METHODS A systematic search of the PubMed and Web of Science was performed in February 2020, yielding 1446 unique records. A total of 13 comparative cohort studies were included. Risk of bias in each study was assessed separately by two authors using the Newcastle-Ottawa Scale (NOS). RESULTS Data from 921 participants in 12 studies were synthesized in the present meta-analysis. Meta-analysis revealed that NS compared with non-nerve sparing (NNS) results in improved post-operative potency, daytime continence, and nocturnal continence. RRs were 9.35 (P < .00001) in potency, 1.11 (P = .045) in daytime continence, and 1.33 (P = .002) in nocturnal continence, respectively. Furthermore, no differences were found in the included studies reporting oncological outcomes. RRs were 0.88 (P = .61) in local and/or distant recurrence between two groups. A sensitivity analysis of prospective studies indicated consistent results. DISCUSSION AND CONCLUSION This meta-analysis indicates that NS RC can improve post-operative potency, and daytime and nocturnal urinary continence, without compromising oncological control, compared with NNS RC in men.
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Affiliation(s)
- Xingyu Xiong
- Department of Urology, Center of Biomedical Big Data and National Clinical Research Center for Geriatrics, Institute of Urology, West China Hospital of Sichuan University, Chengdu, China
| | - Shi Qiu
- Department of Urology, Center of Biomedical Big Data and National Clinical Research Center for Geriatrics, Institute of Urology, West China Hospital of Sichuan University, Chengdu, China.,Center of Biomedical Big Data, West China Hospital, Sichuan University, Chengdu, China
| | - Xianyanling Yi
- Department of Urology, Center of Biomedical Big Data and National Clinical Research Center for Geriatrics, Institute of Urology, West China Hospital of Sichuan University, Chengdu, China
| | - Kun Jin
- Department of Urology, Center of Biomedical Big Data and National Clinical Research Center for Geriatrics, Institute of Urology, West China Hospital of Sichuan University, Chengdu, China
| | - Hang Xu
- Department of Urology, Center of Biomedical Big Data and National Clinical Research Center for Geriatrics, Institute of Urology, West China Hospital of Sichuan University, Chengdu, China
| | - Hanran Lei
- Department of Urology, Center of Biomedical Big Data and National Clinical Research Center for Geriatrics, Institute of Urology, West China Hospital of Sichuan University, Chengdu, China
| | - Shengjiang Bai
- Department of Urology, Center of Biomedical Big Data and National Clinical Research Center for Geriatrics, Institute of Urology, West China Hospital of Sichuan University, Chengdu, China
| | - Ge Peng
- Department of Urology, Center of Biomedical Big Data and National Clinical Research Center for Geriatrics, Institute of Urology, West China Hospital of Sichuan University, Chengdu, China
| | - Lu Yang
- Department of Urology, Center of Biomedical Big Data and National Clinical Research Center for Geriatrics, Institute of Urology, West China Hospital of Sichuan University, Chengdu, China
| | - Qiang Wei
- Department of Urology, Center of Biomedical Big Data and National Clinical Research Center for Geriatrics, Institute of Urology, West China Hospital of Sichuan University, Chengdu, China
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27
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Chikazawa K, Kanao H, Wang L, Kuwata T, Konno R. Taking care of vesicohypogastric fascia: Enveloping bladder, uterine vessels, and ureter for safe laparoscopic hysterectomy. Taiwan J Obstet Gynecol 2020; 59:348-349. [PMID: 32127166 DOI: 10.1016/j.tjog.2020.01.033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/21/2019] [Indexed: 10/24/2022] Open
Affiliation(s)
- Kenro Chikazawa
- Department of Obstetrics and Gynecology, Jichi Medical University, Saitama Medical Center, Japan.
| | - Hiroyuki Kanao
- Department of Gynecology, Cancer Institute Hospital, Tokyo, Japan
| | - Liangcheng Wang
- Department of Obstetrics and Gynecology, Jichi Medical University, Saitama Medical Center, Japan
| | - Tomoyuki Kuwata
- Department of Obstetrics and Gynecology, Jichi Medical University, Saitama Medical Center, Japan
| | - Ryo Konno
- Department of Obstetrics and Gynecology, Jichi Medical University, Saitama Medical Center, Japan
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28
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Considering the role of radical prostatectomy in 21st century prostate cancer care. Nat Rev Urol 2020; 17:177-188. [PMID: 32086498 DOI: 10.1038/s41585-020-0287-y] [Citation(s) in RCA: 59] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/20/2020] [Indexed: 12/16/2022]
Abstract
The practice of radical prostatectomy for treating prostate cancer has evolved remarkably since its general introduction around 1900. Initially described using a perineal approach, the procedure was later popularized using a retropubic one, after it was first described as such in 1948. The open surgical method has now largely been abandoned in favour of the minimally invasive robot-assisted method, which was first described in 2000. Until 1980, the procedure was hazardous, often accompanied by massive blood loss and poor outcomes. For patients in whom surgery is indicated, prostatectomy is increasingly being used as the first step in a multitherapeutic approach in advanced local, and even early metastatic, disease. However, contemporary molecular insights have enabled many men to safely avoid surgical intervention when the disease is phenotypically indolent and use of active surveillance programmes continues to expand worldwide. In 2020, surgery is not recommended in those men with low-grade, low-volume Gleason 6 prostate cancer; previously these men - a large cohort of ~40% of men with newly diagnosed prostate cancer - were offered surgery in large numbers, with little clinical benefit and considerable adverse effects. Radical prostatectomy is appropriate for men with intermediate-risk and high-risk disease (Gleason score 7-9 or Grade Groups 2-5) in whom radical prostatectomy prevents further metastatic seeding of potentially lethal clones of prostate cancer cells. Small series have suggested that it might be appropriate to offer radical prostatectomy to men presenting with small metastatic burden (nodal and or bone) as part of a multimodal therapeutic approach. Furthermore, surgical treatment of prostate cancer has been reported in cohorts of octogenarian men in good health with minimal comorbidities, when 20 years ago such men were rarely treated surgically even when diagnosed with localized high-risk disease. As medical therapies for prostate cancer continue to increase, the use of surgery might seem to be less relevant; however, the changing demographics of prostate cancer means that radical prostatectomy remains an important and useful option in many men, with a changing indication.
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29
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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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30
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Nyangoh Timoh K, Deffon J, Moszkowicz D, Lebacle C, Creze M, Martinovic J, Zaitouna M, Diallo D, Lavoue V, Fautrel A, Benoit G, Bessede T. Smooth muscle of the male pelvic floor: An anatomic study. Clin Anat 2019; 33:810-822. [PMID: 31746012 DOI: 10.1002/ca.23515] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2019] [Revised: 10/14/2019] [Accepted: 10/20/2019] [Indexed: 01/06/2023]
Abstract
Knowledge of the anatomy of the male pelvic floor is important to avoid damaging the pelvic floor muscles during surgery. We set out to explore the structure and innervation of the smooth muscle (SM) of the whole pelvic floor using male fetuses. We removed en-bloc the entire pelvis of three male fetuses. The specimens were serially sectioned before being stained with Masson's trichrome and hematoxylin and eosin, and immunostained for SMs, and somatic, adrenergic, sensory and nitrergic nerve fibers. Slides were digitized for three-dimensional reconstruction. We individualized a middle compartment that contains SM cells. This compartment is in close relation with the levator ani muscle (LAM), rectum, and urethra. We describe a posterior part of the middle compartment posterior to the rectal wall and an anterior part anterior to the rectal wall. The anterior part is split into (1) a centro-levator area of SM cells localized between the right and left LAM, (2) an endo-levator area that upholsters the internal aspect of the LAM, and (3) an infra-levator area below the LAM. All these areas are innervated by autonomic nerves coming from the inferior hypogastric plexus. The core and the infra-levator area receive the cavernous nerve and nerves supplying the urethra. We thus demonstrate that these muscular structures are smooth and under autonomic influence. These findings are relevant for the pelvic surgeon, and especially the urologist, during radical prostatectomy, abdominoperineal resection and intersphincteric resection. Clin. Anat., 2019. © 2019 Wiley Periodicals, Inc.
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Affiliation(s)
- Krystel Nyangoh Timoh
- UMR 1195, University Paris Sud, INSERM, Université Paris-Saclay, Le Kremlin-Bicetre, France.,Department of Obstetrics and Gynecology, Hopital Universitaire de Rennes, University Rennes 1, Rennes, France
| | - J Deffon
- UMR 1195, University Paris Sud, INSERM, Université Paris-Saclay, Le Kremlin-Bicetre, France
| | - D Moszkowicz
- UMR 1195, University Paris Sud, INSERM, Université Paris-Saclay, Le Kremlin-Bicetre, France
| | - C Lebacle
- UMR 1195, University Paris Sud, INSERM, Université Paris-Saclay, Le Kremlin-Bicetre, France.,Urology Department, Hopitaux Universitaires Paris-Sud, APHP, Le Kremlin-Bicetre, France
| | - M Creze
- UMR 1195, University Paris Sud, INSERM, Université Paris-Saclay, Le Kremlin-Bicetre, France
| | - J Martinovic
- Department of Fetal Pathology, Hopitaux Universitaires Paris-Sud, APHP, Clamart, France
| | - M Zaitouna
- UMR 1195, University Paris Sud, INSERM, Université Paris-Saclay, Le Kremlin-Bicetre, France
| | - D Diallo
- UMR 1195, University Paris Sud, INSERM, Université Paris-Saclay, Le Kremlin-Bicetre, France
| | - V Lavoue
- Department of Obstetrics and Gynecology, Hopital Universitaire de Rennes, University Rennes 1, Rennes, France
| | - A Fautrel
- Université de Rennes 1, Rennes, France.,INSERM, UMR991 Liver Metabolism and Cancer, Rennes, France
| | - G Benoit
- UMR 1195, University Paris Sud, INSERM, Université Paris-Saclay, Le Kremlin-Bicetre, France
| | - T Bessede
- UMR 1195, University Paris Sud, INSERM, Université Paris-Saclay, Le Kremlin-Bicetre, France.,Urology Department, Hopitaux Universitaires Paris-Sud, APHP, Le Kremlin-Bicetre, France
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31
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Hamamoto H, Yamamoto M, Masubuchi S, Ishii M, Osumi W, Tanaka K, Okuda J, Uchiyama K. Male sex and anterior wall tumor location as risk factors for urinary dysfunction after laparoscopic rectal surgery. Surg Endosc 2019; 34:3567-3573. [DOI: 10.1007/s00464-019-07186-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2019] [Accepted: 10/01/2019] [Indexed: 01/13/2023]
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Kaiho Y, Ito J, Iwamura H, Anan G, Kuromoto A, Kudo T, Sato M. Nerves in the Areas Posterior to the Prostate Base Contribute to Erectile Function: An Intraoperative Electrical Stimulation Assessment. Urology 2019; 132:156-160. [DOI: 10.1016/j.urology.2019.05.048] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2019] [Revised: 04/25/2019] [Accepted: 05/10/2019] [Indexed: 11/25/2022]
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Karabulut İ, Çelik EC, Yılmazel FK, Özkaya F, Bedir F, Ceylan M, Ceylan O, Yılmaz AH, Adanur Ş. A new method in robotic-assisted laparoscopic radical prostatectomy: personalised neuroprotective surgery with neuromonitoring system-randomised controlled study. Int Urol Nephrol 2019; 52:263-269. [PMID: 31549286 DOI: 10.1007/s11255-019-02295-y] [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: 08/21/2019] [Accepted: 09/17/2019] [Indexed: 11/24/2022]
Abstract
PURPOSE Erectile dysfunction is one of the important morbidities following the radical prostatectomy (RP) surgeries. The goal of this research is to investigate the contribution of intraoperative neuromonitorisation method (IONM) on postoperative erectile function in patients who underwent robotic-assisted laparoscopic radical prostatectomy (RALP) with the localise prostate cancer (LPCa). MATERIALS AND METHODS In this randomised controlled study contains 88 patients with LPCa were classified based on D'Amico Risk Classification. 61 patients who met the necessary criteria were divided into two groups as neuromonitorisation group (n = 30) and control group (n = 31). All patients were operated under general anaesthesia. All patients included in the study underwent RALP by robotic-assisted system. For the neuromonitorisation, IONM electromyography electrodes were placed to the right and left cavernous bodies in neuromonitorisation group. Impulses in the corpora cavernosa were considered significant. Postoperative erectile functions were determined according to the 3th and 6th month IIEF-5 scores. Demographic data, operative procedures, Gleason scores, final pathology, surgery border, PSA, and IIEF-5 score of patients were recorded. RESULTS No statistically difference was found between the groups in terms of demographic data, operative procedures, Gleason scores, final pathology, surgery border, and third-month PSA levels (p > 0.05). There was statistically difference between the postoperative third and 6-month IIEF-5 score in neuromonitorisation group (p < 0.05). CONCLUSION In the IONM technique, high rate of improvement in erectile function was observed in the early period thanks to personalised neuroprotective surgery applied to patients.
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Affiliation(s)
- İbrahim Karabulut
- Department of Urology, Education and Research Hospital, Erzurum, Turkey
| | - Erkan Cem Çelik
- Department of Anesthesiolgy and Reanimation, Education and Research Hospital, Erzurum, Turkey
| | | | - Fatih Özkaya
- Medical Faculty, Department of Urology, Atatürk University, Erzurum, Turkey
| | - Fevzi Bedir
- Department of Urology, Education and Research Hospital, Erzurum, Turkey
| | - Mustafa Ceylan
- Medical Faculty, Department of Neurology, Atatürk University, Erzurum, Turkey
| | - Onur Ceylan
- Medical Faculty, Department of Pathology, Atatürk University, Erzurum, Turkey
| | | | - Şenol Adanur
- Medical Faculty, Department of Urology, Atatürk University, Erzurum, Turkey
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Abstract
The field of prostate cancer has been the subject of extensive research that has resulted in important discoveries and shaped our appreciation of this disease and its management. Advances in our understanding of the epidemiology, natural history, anatomy, detection, diagnosis, grading, staging, imaging, and management of prostate cancer have changed clinical practice and influenced guideline recommendations. The development of the Gleason score and subsequent modifications enabled accurate prediction of prognosis. Increased anatomical understanding and improved surgical techniques resulted in the development of nerve-sparing surgery for radical prostatectomy. The advent of active surveillance has changed the management of low-risk disease, and chemotherapy and hormonal therapy have improved the outcomes of patients with distant disease. Ongoing research and clinical trials are expected to yield more practice-changing results in the near future.
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Peng LC, Mian OY, Lakshminarayanan P, Huang P, Bae HJ, Robertson S, Habtu T, Narang A, Agarwal S, Greco S, Tran P, McNutt T, DeWeese TL, Song DY. Analysis of Spatial Dose-Volume Relationships and Decline in Sexual Function Following Permanent Brachytherapy for Prostate Cancer. Urology 2019; 135:111-116. [PMID: 31454660 DOI: 10.1016/j.urology.2019.08.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2019] [Revised: 08/01/2019] [Accepted: 08/09/2019] [Indexed: 11/19/2022]
Abstract
OBJECTIVE To explore relationships between dose to periprostatic anatomic structures and erectile dysfunction (ED) outcomes in an institutional cohort treated with prostate brachytherapy. METHODS The Sexual Health Inventory for Men (SHIM) instrument was administered for stage cT1-T2 prostate cancer patients treated with Pd-103 brachytherapy over a 10-year interval. Dose volume histograms for regional organs at risk and periprostatic regions were calculated with and without expansions to account for contouring uncertainty. Regression tree analysis clustered patients into ED risk groups. RESULTS We identified 115 men treated with definitive prostate brachytherapy who had 2 years of complete follow-up. On univariate analysis, the subapical region (SAR) caudal to prostate was the only defined region with dose volume histograms parameters significant for potency outcomes. Regression tree analysis separated patients into low ED risk (mean 2-year SHIM 20.03), medium ED risk (15.02), and high ED risk (5.54) groups. Among patients with good baseline function (SHIM ≥ 17), a dose ≥72.75 Gy to 20% of the SAR with 1 cm expansion was most predictive for 2-year potency outcome. On multivariate analysis, regression tree risk group remained significant for predicting potency outcomes even after adjustment for baseline SHIM and age. CONCLUSION Dose to the SAR immediately caudal to prostate was predictive for potency outcomes in patients with good baseline function. Minimization of dose to this region may improve potency outcomes following prostate brachytherapy.
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Affiliation(s)
- Luke C Peng
- Department of Radiation Oncology and Molecular Radiation Sciences, Johns Hopkins Hospital, Baltimore, MD
| | - Omar Y Mian
- Department of Radiation Oncology, Cleveland Clinic, Cleveland, OH
| | - Pranav Lakshminarayanan
- Department of Radiation Oncology and Molecular Radiation Sciences, Johns Hopkins Hospital, Baltimore, MD
| | - Peng Huang
- Department of Oncology, Biostatistics and Bioinformatics Division, Johns Hopkins University School of Medicine, Baltimore, MD
| | - Hee J Bae
- Department of Radiation Oncology and Molecular Radiation Sciences, Johns Hopkins Hospital, Baltimore, MD
| | - Scott Robertson
- Department of Radiation Oncology and Molecular Radiation Sciences, Johns Hopkins Hospital, Baltimore, MD
| | - Tamey Habtu
- Department of Radiation Oncology and Molecular Radiation Sciences, Johns Hopkins Hospital, Baltimore, MD
| | - Amol Narang
- Department of Radiation Oncology and Molecular Radiation Sciences, Johns Hopkins Hospital, Baltimore, MD
| | - Sameer Agarwal
- Department of Radiation Oncology and Molecular Radiation Sciences, Johns Hopkins Hospital, Baltimore, MD
| | - Stephen Greco
- Department of Radiation Oncology and Molecular Radiation Sciences, Johns Hopkins Hospital, Baltimore, MD
| | - Phuoc Tran
- Department of Radiation Oncology and Molecular Radiation Sciences, Johns Hopkins Hospital, Baltimore, MD
| | - Todd McNutt
- Department of Radiation Oncology and Molecular Radiation Sciences, Johns Hopkins Hospital, Baltimore, MD
| | - Theodore L DeWeese
- Department of Radiation Oncology and Molecular Radiation Sciences, Johns Hopkins Hospital, Baltimore, MD
| | - Daniel Y Song
- Department of Radiation Oncology and Molecular Radiation Sciences, Johns Hopkins Hospital, Baltimore, MD.
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Sood A, Jeong W, Taneja K, Abdollah F, Palma-Zamora I, Arora S, Gupta N, Menon M. The Precision Prostatectomy: an IDEAL Stage 0, 1 and 2a Study. BMJ SURGERY, INTERVENTIONS, & HEALTH TECHNOLOGIES 2019; 1:e000002. [PMID: 35047770 PMCID: PMC8647607 DOI: 10.1136/bmjsit-2019-000002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Revised: 07/17/2019] [Accepted: 07/17/2019] [Indexed: 11/28/2022] Open
Abstract
Objective This study aimed to develop a preclinical model of prostate cancer (CaP) for studying focal/hemiablation of the prostate (IDEAL stage 0), and to use the information from the stage 0 investigation to design a novel focal surgical treatment approach—the precision prostatectomy (IDEAL stage 1/2a). Methods The IDEAL stage 0 study included simulation of focal/hemiablation in whole-mount prostate specimens obtained from 100 men who had undergone radical prostatectomies, but met the criteria for focal/hemiablation. The IDEAL stage 1/2a was a prospective, single-arm, Institutional Review Board-approved study of precision prostatectomy undertaken in eight men, who met the predetermined criteria. Criteria for both stages included (1) prostate-specific antigen (PSA) ≤15 ng/mL, (2) stage ≤cT2, (3) dominant unilateral lesion with Gleason ≤4+3 with any number of cores or % cores involved ipsilaterally on transrectal biopsy, (4) no primary Gleason ≥4 contralaterally on transrectal biopsy, and (5) preoperative erectile function score (International Index of Erectile Function (IIEF)-5) of ≥17 (out of 25) without PDE-5i (applicable only to the stage 1/2a study participants). Feasibility and safety of the precision prostatectomy technique, and short-term urinary, sexual and oncological outcomes were studied. Results Analysis of whole-mount specimens in the 100 men showed an index lesion (>1 cm in diameter) in all. Ninety-eight men had satellite lesions smaller than 0.5 cm∧3 in volume—46 on the side of the dominant lesions and 52 in the contralateral lobe. If the men in this modeling cohort had undergone focal ablation with a 5–10 mm untreated margin, all except one would have had at least Gleason 6 residual cancer. If they had undergone hemiablation with no untreated tissue on the ablated side, 56 men would have had residual cancer on the contralateral side, of whom 21 would have had clinically significant cancer (Gleason 7 or higher). If these men had undergone precision prostatectomy, with preservation of 5–10 mm of tissue on the non-dominant side, 10% and 4% would have had Gleason 3+4 and Gleason 4+3 disease left behind, respectively. For the stage 1/2a study, the median (IQR) age, PSA and IIEF-5 scores at the time of surgery were 54 (52–57) years, 4.4 (3.8–6.1) ng/mL and 24 (23-25), respectively. All eight patients were continent and sexually active at 12 months with a median IIEF-5 score of 21 (out of 25). At 24–30 months from surgery, the median PSA was 0.2 (range 0.1–0.7) ng/mL. Six men had undergone follow-up protocol biopsies, two, with undetectable PSA, had refused. Two men had residual Gleason 3+3 cancer, with PSA of 0.7 and 0.4 ng/mL, and remain on active surveillance. No man has undergone secondary whole-gland therapy. Conclusions Examination of whole-mount radical prostatectomy specimens in men who fit the conventional criteria of focal/hemiablation showed that approximately 21%–68% of men would have clinically significant CaP in the untreated tissue. In a small development cohort, precision prostatectomy was technically feasible, with excellent postoperative functional recovery. At 30 months of follow-up, no patient had clinically significant residual cancer or required secondary treatment. Pending long-term follow-up, a risk-stratified surgical approach may avoid whole-gland therapy and preserve erectile function in the majority of men with intermediate-risk CaP.
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Affiliation(s)
- Akshay Sood
- Vattikuti Urology Institute, Henry Ford Hospital, Detroit, Michigan, USA
| | - Wooju Jeong
- Vattikuti Urology Institute, Henry Ford Hospital, Detroit, Michigan, USA
| | - Kanika Taneja
- Department of Pathology, Henry Ford Hospital, Detroit, Michigan, USA
| | - Firas Abdollah
- Vattikuti Urology Institute, Henry Ford Hospital, Detroit, Michigan, USA
| | - Isaac Palma-Zamora
- Vattikuti Urology Institute, Henry Ford Hospital, Detroit, Michigan, USA
| | - Sohrab Arora
- Vattikuti Urology Institute, Henry Ford Hospital, Detroit, Michigan, USA
| | - Nilesh Gupta
- Department of Pathology, Henry Ford Hospital, Detroit, Michigan, USA
| | - Mani Menon
- Vattikuti Urology Institute, Henry Ford Hospital, Detroit, Michigan, USA
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Wang X, Wu Y, Guo J, Chen H, Weng X, Liu X. Oncological safety of intrafascial nerve-sparing radical prostatectomy compared with conventional process: a pooled review and meta-regression analysis based on available studies. BMC Urol 2019; 19:41. [PMID: 31133039 PMCID: PMC6537360 DOI: 10.1186/s12894-019-0476-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2018] [Accepted: 05/13/2019] [Indexed: 11/11/2022] Open
Abstract
Background Intrafascial prostatectomy was a modified technique from the conventional nerve-sparing surgery in order to improve patients’ post-surgical continence and erectile function; however, ongoing controversy exists regarding the oncological safety of this technique. In this study we aimed to provide a critical and pooled analysis based on published literatures regarding the oncological outcomes after intrafascial nerve-sparing prostatectomy. Methods Database searches were performed for published articles till June 2018 on PubMed. Three reviewers screened fulfilled papers and extracted data independently. Main outcome was the positive surgical margins (PSMs) rates stratified by pathological stages. We performed both one-arm and comparative meta-analysis to evaluate the oncological safety of intrafascial technique. Moreover, we built meta-regression models to assess the confounding factors. Results We retrieved a total of 117 records after electronic search, of which 21 studies were finally included in this review. There were 15 controlled studies and 6 surgical series. Our one-arm meta-analysis demonstrated that the total PSM rates after intrafascial techniques ranging from 2.2 to 35%, with a pooled rate of 14.5% on average (480 of 3151 patients, 95% confidence interval[CI]: 11.2–17.5%). Meta-regression model showed that patients’ age, pT2 cancer percentage and Selection Score of Oncological Safety (SSOS) were significantly associated with total PSM rate; moreover, each 1 point of SSOS could decrease the total PSM rate by 1.3% on average. Comparative meta-analysis demonstrated that there was no significant difference between intra- and inter-fascial group regarding PSM rates. Conclusions With stringent case selection and when performed by experienced surgeons, intrafascial prostatectomy could offer an acceptable or, at least, equivalent PSM rate compared with the conventional interfascial approach. Preoperative SSOS more than 7 points could be considered as an indication of intrafascial radical prostatectomy. Electronic supplementary material The online version of this article (10.1186/s12894-019-0476-2) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Xiao Wang
- Department of Urology, Renmin Hospital of Wuhan University, 238Jiefang Road, Wuhan, 430060, People's Republic of China
| | - Yiqi Wu
- Department of Urology, Renmin Hospital of Wuhan University, 238Jiefang Road, Wuhan, 430060, People's Republic of China
| | - Jia Guo
- Department of Urology, Renmin Hospital of Wuhan University, 238Jiefang Road, Wuhan, 430060, People's Republic of China
| | - Hui Chen
- Department of Urology, Renmin Hospital of Wuhan University, 238Jiefang Road, Wuhan, 430060, People's Republic of China
| | - Xiaodong Weng
- Department of Urology, Renmin Hospital of Wuhan University, 238Jiefang Road, Wuhan, 430060, People's Republic of China
| | - Xiuheng Liu
- Department of Urology, Renmin Hospital of Wuhan University, 238Jiefang Road, Wuhan, 430060, People's Republic of China.
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Pushkar DY, Kolontarev KB. [Robot-assisted radical prostatectomy. Functional result. Part I. (in Russian only)]. Khirurgiia (Mosk) 2019:111-120. [PMID: 30938366 DOI: 10.17116/hirurgia2019031111] [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: 11/17/2022]
Abstract
Robot-assisted operations as widely used in urology, gynecology, general and cardiovascular surgery are considered by many experts as a new 'gold standard' of surgical treatment of various diseases in developed countries. Robot-assisted radical prostatectomy for prostate cancer is the most common robotic procedure. Better functional outcomes of robot-assisted radical prostatectomy are due to another (new) understanding of pelvic surgical anatomy, new approach implying dissection and preservation of external urethral sphincter and neurovascular structures. Prostate neuroanatomy, various approaches to preserve neurovascular structures and own experience of nerve-sparing robot-assisted radical prostatectomy with functional results are reviewed in the article.
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Affiliation(s)
- D Yu Pushkar
- Chair of Urology, Evdokimov Moscow State University of Medicine and Dentistry of Ministry of Health of the Russia, Moscow, Russia
| | - K B Kolontarev
- Chair of Urology, Evdokimov Moscow State University of Medicine and Dentistry of Ministry of Health of the Russia, Moscow, Russia
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39
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Sievert KD, Hennenlotter J, Dillenburg T, Toomey P, Wöllner J, Zweers P, Pannek J, Andersson KE, Amend B. Extended periprostatic nerve distributions on the prostate surface confirmed using diffusion tensor imaging. BJU Int 2019; 123:995-1004. [DOI: 10.1111/bju.14508] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Karl-Dietrich Sievert
- Department of Urology; Eberhard-Karls University Tuebingen; Tuebingen Germany
- PMU; Salzburg Austria
- Department of Urology; Medical University of Vienna; Vienna Austria
- Klinikum Lippe; Detmold Germany
| | - Jörg Hennenlotter
- Department of Urology; Eberhard-Karls University Tuebingen; Tuebingen Germany
| | - Thomas Dillenburg
- Department of Urology; Eberhard-Karls University Tuebingen; Tuebingen Germany
| | | | - Jens Wöllner
- Department of Urology; Medical University of Vienna; Vienna Austria
- Neuro-Urology; Swiss Paraplegic Center; Nottwil Switzerland
| | - Peter Zweers
- Klinikum Lippe; Detmold Germany
- Neuro-Urology; Swiss Paraplegic Center; Nottwil Switzerland
| | - Jürgen Pannek
- Klinikum Lippe; Detmold Germany
- Neuro-Urology; Swiss Paraplegic Center; Nottwil Switzerland
| | | | - Bastian Amend
- Department of Urology; Eberhard-Karls University Tuebingen; Tuebingen Germany
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Manfredi M, Fiori C, Amparore D, Checcucci E, Porpiglia F. Technical details to achieve perfect early continence after radical prostatectomy. MINERVA CHIR 2019; 74:63-77. [DOI: 10.23736/s0026-4733.18.07761-1] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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41
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Weledji EP, Eyongeta D, Ngounou E. The anatomy of urination: What every physician should know. Clin Anat 2018; 32:60-67. [PMID: 30303589 DOI: 10.1002/ca.23296] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2018] [Revised: 09/15/2018] [Accepted: 10/03/2018] [Indexed: 12/22/2022]
Abstract
Normal voiding needs a coordinated, sustained bladder contraction of adequate size and duration. It requires a decrease in resistance of the bladder neck and urethra and no obstruction. Voiding problems can arise from abnormal storage of urine or problems with urinary control. The aim of this article was to review the functional anatomy and physiology of urinary control and micturition and the pathophysiology of urinary control problems. The Medline (PubMed) database, Cochrane Library, and Science Citation Index were searched electronically to identify original published studies on bladder anatomy, function and urinary control. References were searched from relevant chapters in specialized texts and all were included. Voiding problems are the most common presenting urological symptoms in general medical practice. Urinary incontinence occurs when the normal process of storing and passing urine is disrupted. A history of coexisting fecal incontinence suggests a neuropathic etiology. A better understanding of the physiology of urinary control could lead to preventive measures for postoperative urinary retention and incontinence such as fluid restriction and to appropriate anesthesia/analgesia, autonomic nerve preservation, total mesorectal excision (TME) for rectal cancer, and biofeedback exercises. It could also suggest appropriate therapeutic measures for established urinary incontinence. Clin. Anat., 2018. © 2018 Wiley Periodicals, Inc.
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Affiliation(s)
- Elroy P Weledji
- Departments of Anatomy and Surgery, Faculty of Health Sciences, University of Buea, Gastrointestinal Surgeon, Regional Hospital Limbe, Limbe, Cameroon
| | - Divine Eyongeta
- Departments of Anatomy and Surgery, Faculty of Health Sciences, University of Buea, Urologist, Regional Hospital, Limbe, Cameroon
| | - Eleanor Ngounou
- Department of Anatomy, Faculty of Health Sciences, University of Buea, Limbe, Cameroon
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Röthlisberger R, Aurore V, Boemke S, Bangerter H, Bergmann M, Thalmann GN, Djonov V. The anatomy of the male inferior hypogastric plexus: What should we know for nerve sparing surgery. Clin Anat 2018; 31:788-796. [DOI: 10.1002/ca.23079] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2018] [Revised: 03/11/2018] [Accepted: 03/20/2018] [Indexed: 01/23/2023]
Affiliation(s)
| | | | | | | | | | - George N. Thalmann
- Department of Urology; Inselspital Bern, University of Bern; Switzerland
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Clarebrough E, Christidis D, Lindner U, Fernandes K, Fleshner N, Lawrentschuk N. Analysis of a practical surgical skills laboratory for nerve sparing radical prostatectomy. World J Urol 2018; 37:799-804. [PMID: 30191394 DOI: 10.1007/s00345-018-2472-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2018] [Accepted: 08/28/2018] [Indexed: 10/28/2022] Open
Abstract
PURPOSE With the rapidly expanding anatomical and technical knowledge surrounding nervesparing radical prostatectomy (NSRP), anatomical and operative textbooks have failed to keep pace with the literature. A surgical skill laboratory (SSL) was designed to educate urology trainees on surgical anatomy and techniques for NSRP. The objective was to assess the validity of a SSL program. METHODS A low-fidelity, anatomically accurate prostate model with its appropriate fascial coverings and location of the neurovascular bundle was created. Participants were surveyed prior to a SSL workshop for their knowledge of NSRP focusing on clinical and anatomical considerations. An interactive 2-h tutorial and workshop was then undertaken outlining the clinical and anatomical nuances for NSRP, with participants then practising an intra and inter-fascial NSRP on the model. Participants were resurveyed immediately after the workshop and at 6 months. RESULTS Thirty participants completed the NSRP workshop. Significant differences (p < 0.0001) in anatomical and clinical knowledge were noted after the workshop with improvements for both junior and senior trainees. The knowledge was retained at 6 months following the workshop. CONCLUSIONS A low-fidelity bench-top model is a feasible and reproducible technique for improving the understanding of periprostatic anatomy and the different surgical approaches for NSRP. The SSL is useful and knowledge gained appears to be retained by workshop participants. SSL workshops are a valid hands-on approach to teaching surgical skills and should remain an integral part of urology training.
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Affiliation(s)
- Emma Clarebrough
- Department of Surgery, Royal Melbourne Hospital, Melbourne, VIC, Australia. .,Young Urology Researchers Organisation (YURO), Melbourne, VIC, Australia.
| | - Daniel Christidis
- Young Urology Researchers Organisation (YURO), Melbourne, VIC, Australia.,Department of Surgery, Austin Health, Melbourne, VIC, Australia
| | - Uri Lindner
- Department of Urology and Surgical Oncology, Princess Margaret Hospital, University of Toronto, Toronto, Canada
| | - Kimberly Fernandes
- Department of Urology and Surgical Oncology, Princess Margaret Hospital, University of Toronto, Toronto, Canada
| | - Neil Fleshner
- Department of Urology and Surgical Oncology, Princess Margaret Hospital, University of Toronto, Toronto, Canada
| | - Nathan Lawrentschuk
- Department of Surgery, Austin Health, University of Melbourne, Melbourne, VIC, Australia.,Olivia Newton John Cancer Research Institute, Austin Health, Melbourne, VIC, Australia.,Division of Cancer Surgery, Peter MacCallum Cancer Centre, Melbourne, VIC, Australia
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KleinJan GH, Sikorska K, Korne CM, Brouwer OR, Buckle T, Tillier C, van der Roest RCM, de Jong J, van Leeuwen FWB, van der Poel HG. A prediction model relating the extent of intraoperative fascia preservation to erectile dysfunction after nerve-sparing robot-assisted radical prostatectomy. J Robot Surg 2018; 13:455-462. [PMID: 30178300 DOI: 10.1007/s11701-018-0867-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2018] [Accepted: 08/26/2018] [Indexed: 11/30/2022]
Abstract
Robot-assisted radical prostatectomy (RARP) is performed in patients with prostate cancer. Unfortunately, 10-46% of patients may still suffer from limited erectile function (EF) after RARP. This study aimed to develop a prediction model based on the extent of fascia preservation (FP) and postoperative EF after RARP. A previously developed FP score quantizing the extent and regions of nerve-preservation was determined in a cohort of 1241 patients who underwent RARP. The predictive value of the FP score for post-prostatectomy EF (following the international index erectile function (IIEF) score, EF domain) was analyzed. To increase the predictive value of the scoring system, the FP regions were related to postoperative EF, nerve distribution and co-morbidity factors. Finally, a prediction model for EF was developed based on the studied cohort. When corrected for the preoperative IIEF-EF, the FP score was shown to be a significant denominator for IIEF (p = 2.5 × 10- 15) with an R2 of 35%. Variable selection performed using the Akaike information criterion led to a final prediction model for postoperative IIEF after nerve-preservation based on the FP score. Furthermore, patient's age, preoperative IIEF score, CCIS and use of clips for nerve sparing were significantly associated with postoperative IIEF-EF. More anterior fascia preservation was correlated with better EF outcome and age was a strong independent predictor of EF outcome. In older men, the relative benefit of more extensive fascia preservation was at least similar to younger men, despite a lower baseline IIEF-EF score. Quantitative nerve-sparing FP scoring could be related to the postoperative IIEF-EF and integrated into a multivariate prediction model, which includes with age, use of surgical clips, the Charlson Comorbidity Index Score (CCIS), and preoperative IIEF-EF. When further validated the prediction model could provide patients and care-givers a qualitative estimation of EF outcome after RARP.
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Affiliation(s)
- G H KleinJan
- Interventional Molecular Imaging Laboratory, Department of Radiology, Leiden University Medical Center (LUMC), Albinusdreef 2, PO Box 9600, 2300 RC, Leiden, The Netherlands.,Department of Urology, The Netherlands Cancer Institute-Antoni van Leeuwenhoek Hospital (NKI-AvL), Plesmanlaan 121, 1066 CX, Amsterdam, The Netherlands
| | - K Sikorska
- Department of Biometrics, The Netherlands Cancer Institute-Antoni van Leeuwenhoek Hospital (NKI-AvL), Plesmanlaan 121, 1066 CX, Amsterdam, The Netherlands
| | - C M Korne
- Interventional Molecular Imaging Laboratory, Department of Radiology, Leiden University Medical Center (LUMC), Albinusdreef 2, PO Box 9600, 2300 RC, Leiden, The Netherlands
| | - O R Brouwer
- Department of Urology, The Netherlands Cancer Institute-Antoni van Leeuwenhoek Hospital (NKI-AvL), Plesmanlaan 121, 1066 CX, Amsterdam, The Netherlands.
| | - T Buckle
- Interventional Molecular Imaging Laboratory, Department of Radiology, Leiden University Medical Center (LUMC), Albinusdreef 2, PO Box 9600, 2300 RC, Leiden, The Netherlands
| | - C Tillier
- Department of Urology, The Netherlands Cancer Institute-Antoni van Leeuwenhoek Hospital (NKI-AvL), Plesmanlaan 121, 1066 CX, Amsterdam, The Netherlands
| | - R C M van der Roest
- Department of Urology, The Netherlands Cancer Institute-Antoni van Leeuwenhoek Hospital (NKI-AvL), Plesmanlaan 121, 1066 CX, Amsterdam, The Netherlands
| | - J de Jong
- Department of Pathology, The Netherlands Cancer Institute-Antoni van Leeuwenhoek Hospital (NKI-AvL), Plesmanlaan 121, 1066 CX, Amsterdam, The Netherlands
| | - F W B van Leeuwen
- Interventional Molecular Imaging Laboratory, Department of Radiology, Leiden University Medical Center (LUMC), Albinusdreef 2, PO Box 9600, 2300 RC, Leiden, The Netherlands.,Department of Urology, The Netherlands Cancer Institute-Antoni van Leeuwenhoek Hospital (NKI-AvL), Plesmanlaan 121, 1066 CX, Amsterdam, The Netherlands
| | - H G van der Poel
- Department of Urology, The Netherlands Cancer Institute-Antoni van Leeuwenhoek Hospital (NKI-AvL), Plesmanlaan 121, 1066 CX, Amsterdam, The Netherlands.
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Wang X, Wu Y, Guo J, Chen H, Weng X, Liu X. Intrafascial nerve-sparing radical prostatectomy improves patients' postoperative continence recovery and erectile function: A pooled analysis based on available literatures. Medicine (Baltimore) 2018; 97:e11297. [PMID: 30024505 PMCID: PMC6086530 DOI: 10.1097/md.0000000000011297] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND Intrafascial nerve-sparing prostatectomy has been currently applied based on the updated anatomic understanding of periprostatic cavernous nerves, in order to provide patients better postoperative recovery of continence and potency. The aim of our study is to perform a pooled analysis of available literatures regarding the functional outcomes following intrafascial nerve-sparing technique. METHODS The authors performed database searches of articles published till October 2017 on PubMed using following keywords across the "title" and "abstract" field of the records: intrafascial, veil, curtain dissection, high anterior release, incremental nerve sparing, and radical prostatectomy. Fulfilled papers were screened and data were extracted independently by 3 reviewers. Main outcome was the postoperative continence and potency rate stratified by follow-up durations. Both 1-arm and comparative meta-analyses were performed and meta-regression models were conducted to evaluate the confounding factors. RESULTS Using the electronic search strategy, a total of 71 records were retrieved and 20 studies were finally included, of which 6 were surgical series and 14 were controlled studies. Our 1-arm meta-analysis summarized the pooled continence rates after intrafascial prostatectomy were 59.4%, 76.2%, 89.9%, and 92.2% at postoperative follow-up of 1, 3, 6, and 12 months, respectively. Regardless of the variance in potency definition, the pooled potency rates after intrafascial prostatectomy were 42.2%, 54.2%, and 72.2% at 3, 6, and 12 months, respectively. Comparative analysis showed that the intrafascial group offered better continence rates at 1, 3, and 6 months with an odds ratio (OR) of 2.38 (95% confidence interval [CI]: 1.73-3.26), 1.82 (95% CI: 1.18-2.82), and 2.19 (95% CI: 1.43-3.34) as compared with the interfascial group. Moreover, potency rate in the intrafascial group was higher at 12 months than in the interfascial group, with an OR of 2.44 (95% CI: 1.35-4.42). CONCLUSION Based on the limited evidence, our study demonstrated that intrafascial nerve-sparing prostatectomy could provide patients with earlier recovery of continence and better erectile function compared with conventional interfascial approach, but physiological mechanisms about this technique still need further study.
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Urological Survivorship Issues Among Adolescent Boys and Young Men Who Are Cancer Survivors. Sex Med Rev 2018; 6:396-409. [DOI: 10.1016/j.sxmr.2017.12.007] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2017] [Revised: 12/27/2017] [Accepted: 12/28/2017] [Indexed: 11/22/2022]
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Lee JM, Kim NK. Essential Anatomy of the Anorectum for Colorectal Surgeons Focused on the Gross Anatomy and Histologic Findings. Ann Coloproctol 2018; 34:59-71. [PMID: 29742860 PMCID: PMC5951097 DOI: 10.3393/ac.2017.12.15] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/14/2017] [Accepted: 12/15/2017] [Indexed: 12/13/2022] Open
Abstract
The anorectum is a region with a very complex structure, and surgery for benign or malignant disease of the anorectum is impossible without accurate anatomical knowledge. The conjoined longitudinal muscle consists of smooth muscle from the longitudinal muscle of the rectum and the striate muscle from the levator ani and helps maintain continence; the rectourethralis muscle is connected directly to the conjoined longitudinal muscle at the top of the external anal sphincter. Preserving the rectourethralis muscle without damage to the carvernous nerve or veins passing through it when the abdominoperineal resection is implemented is important. The mesorectal fascia is a multi-layered membrane that surrounds the mesorectum. Because the autonomic nerves also pass between the mesorectal fascia and the parietal fascia, a sharp pelvic dissection must be made along the anatomic fascial plane. With the development of pelvic structure anatomy, we can understand better how we can remove the tumor and the surrounding metastatic lymph nodes without damaging the neural structure. However, because the anorectal anatomy is not yet fully understood, we hope that additional studies of anatomy will enable anorectal surgery to be performed based on complete anatomical knowledge.
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Affiliation(s)
- Jong Min Lee
- Division of Colorectal Surgery, Department of Surgery, Colorectal Cancer Clinic, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Nam Kyu Kim
- Division of Colorectal Surgery, Department of Surgery, Colorectal Cancer Clinic, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
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Pederzoli F, Campbell JD, Matsui H, Sopko NA, Bivalacqua TJ. Surgical Factors Associated With Male and Female Sexual Dysfunction After Radical Cystectomy: What Do We Know and How Can We Improve Outcomes? Sex Med Rev 2018; 6:469-481. [PMID: 29371143 DOI: 10.1016/j.sxmr.2017.11.003] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2017] [Revised: 11/09/2017] [Accepted: 11/16/2017] [Indexed: 01/19/2023]
Abstract
BACKGROUND Sexual dysfunction after radical cystectomy (RC) is a frequent, though commonly overlooked symptom for both men and women. Improved oncological outcomes and the rising number of bladder cancer survivors mandate physicians to closely address and evaluate post-surgical sexual dysfunction and offer goal-directed treatment. Improvements in RC surgical techniques that promote post-operative sexual function have been proposed, alongside new quality-of-life inventories and sexual function therapeutic options; however, rigorous studies in the field are lacking. AIM To provide a comprehensive overview of post-RC sexual dysfunction and discuss new surgical techniques, sexual dysfunction evaluation, and novel treatment strategies. METHODS A non-systematic narrative review of the literature was performed through PubMed about sexual dysfunction in men and women after RC. OUTCOMES We reported on the surgical anatomy of sexual function-sparing RC, the most common inventories used to investigate sexual function in post-RC patients, and current treatment options. RESULTS Extensive knowledge about pelvic anatomy and nerve-sparing surgical techniques in men is well understood from studies about prostate anatomy and nerve-sparing prostatectomy. However, anatomical and surgical details of sexual-sparing RC in women needs further characterization. Several questionnaires are used to investigate sexuality after RC, but a standardized approach is still missing. Therapeutic options are available to treat sexual dysfunction, but limited studies have been conducted to specifically address the post-RC population. CONCLUSION Further work is needed to understand the best strategies to prevent and treat sexual dysfunction in patients after RC. Pederzoli F, Campbell JD, Matsui H, et al. Surgical Factors Associated With Male and Female Sexual Dysfunction After Radical Cystectomy: What Do We Know and How Can We Improve Outcomes? Sex Med Rev 2018;6:469-481.
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Affiliation(s)
- Filippo Pederzoli
- James Buchanan Brady Urological Institute and Department of Urology, Johns Hopkins University School of Medicine, Baltimore, MD, USA; Vita-Salute San Raffaele University, Milan, Italy.
| | - Jeffrey D Campbell
- James Buchanan Brady Urological Institute and Department of Urology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Hotaka Matsui
- James Buchanan Brady Urological Institute and Department of Urology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Nikolai A Sopko
- James Buchanan Brady Urological Institute and Department of Urology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Trinity J Bivalacqua
- James Buchanan Brady Urological Institute and Department of Urology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
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Penile Length: Measurement Technique and Applications. Sex Med Rev 2017; 6:261-271. [PMID: 29289534 DOI: 10.1016/j.sxmr.2017.10.002] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2017] [Revised: 10/01/2017] [Accepted: 10/06/2017] [Indexed: 11/20/2022]
Abstract
INTRODUCTION Penile size has long been an important fixation in men's lives. On the one hand, a smaller penis has been associated with anxiety and apprehension; on the other hand, a larger penis has generally been related to virility and strength. These perceptions predominate during an erection, when penile size is representative of a man's masculinity. AIM To assess adult penile length and summarize average penile length assessments from the literature; analyze how various urologic diseases and therapies affect penile length and volume; and review how surgical treatments for Peyronie's disease, penile prosthesis implantation, and radical prostatectomy can affect penile size to appropriately counsel patients seeking such therapies and set realistic goals for patients. METHODS To achieve the aim of this review, we analyzed the literature on penile size and volume and how these can be affected by various urologic diagnoses and therapies. We summarize common diagnoses and therapies that can affect penile size. MAIN OUTCOME MEASURE We thoroughly discuss how the aforementioned diagnoses and therapies can negatively affect penile size. In doing so, we allow readers to understand the intricacies of penile size when faced with such diagnoses and therapies in their patients. RESULTS Surgical treatments for Peyronie's disease, penile prosthesis implantation for refractory erectile dysfunction, and radical prostatectomy for prostate cancer can lead to a decrease in penile size. CONCLUSION Urologists must recognize that the different therapies they offer can affect a man's penile size, often negatively. This in turn can lead to poorer satisfaction outcomes in patients. Davoudzadeh EP, Davoudzadeh NP, Margolin E, et al. Penile Length: Measurement Technique and Applications. Sex Med Rev 2018;6:261-271.
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Comparison of intrafascial and non-intrafascial radical prostatectomy for low risk localized prostate cancer. Sci Rep 2017; 7:17604. [PMID: 29242503 PMCID: PMC5730549 DOI: 10.1038/s41598-017-17929-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2017] [Accepted: 11/03/2017] [Indexed: 02/06/2023] Open
Abstract
In this meta-analysis study, we compared the oncological and functional outcomes of intrafascial radical prostatectomy (IFRP) with non-intrafascial radical prostatectomy (NIFRP) in the treatment of patients with low risk localized prostate cancer (PCa). Relevant articles were identified by searching PubMed, EMBASE, Cochrane Library, Ovid, and the ISI Web of Knowledge databases. A total of 2096 patients were included from 7 eligible studies. Results of the pooled data showed that the oncological outcomes including gleason score, positive surgical margin and biochemical free survival rates were similar between the two groups. IFRP was superior to NIFRP with lower postoperative complication rates (RR 0.57, 95% CI 0.38, 0.85, p = 0.006), higher continence rates at 3 months post-operation (RR: 1.14; 95% CI, 1.04, 1.26; p = 0.006), and higher potency rates at 6 months (RR: 1.53; 95% CI, 1.07, 2.18; p = 0.02) and 12 months post-operation (RR: 1.38; 95% CI, 1.11, 1.73; p = 0.005). Additionally, there was a tendency towards higher potency rate in patients ≤65 years old compared with patients >65 years old after IFRP. Overall, these findings suggest that IFRP in young patients with low risk localized PCa had less postoperative complications, shortened time to return to continence and improved potency rate without compromising complete tumor control.
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