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Ambrosini F, Preisser F, Tilki D, Heinzer H, Salomon G, Michl U, Steuber T, Maurer T, Chun FKH, Budäus L, Pose RM, Terrone C, Schlomm T, Tennstedt P, Huland H, Graefen M, Haese A. Nerve-sparing radical prostatectomy using the neurovascular structure-adjacent frozen-section examination (NeuroSAFE): results after 20 years of experience. Prostate Cancer Prostatic Dis 2024:10.1038/s41391-024-00851-x. [PMID: 38862777 DOI: 10.1038/s41391-024-00851-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Revised: 05/13/2024] [Accepted: 05/23/2024] [Indexed: 06/13/2024]
Abstract
OBJECTIVES To evaluate the long-term oncological outcomes and functional results of the neurovascular structure-adjacent frozen-section examination (NeuroSAFE) during nerve-sparing (NS) radical prostatectomy (RP). MATERIALS AND METHODS A 10-yr survival analysis on 11069 RPs performed with or without the NeuroSAFE, between January 2002 to June 2011 was carried out. In the NeuroSAFE cohort, the neurovascular structure-adjacent prostatic margins are removed and stained for cryo-sectioning during RP. In case of a PSM, partial or full removal of the neurovascular bundle was performed. The impact of NeuroSAFE on biochemical recurrence-free survival (BFS), salvage radiation therapy-free survival, metastasis-free survival, and prostate cancer-specific survival at 10 years was analyzed. 1-year (1-yr) erectile function (EF), 1-yr, and 2-yr continence rates were assessed in propensity score-based matched cohorts. RESULTS Median follow-up was 121 (IQR: 73, 156) months. No differences in BFS between NeuroSAFE and non-NeuroSAFE were recorded (10-yr BFS: NeuroSAFE vs non-Neurosafe, pT2: 81% vs 84%, p = 0.06; pT3a: 58% vs. 63%, p = 0.6; ≥pT3b: 22% vs. 27%, p = 0.99). No differences were found between the two groups in terms of sRFS (pT2: p = 0.1; pT3a: p = 0.4; ≥pT3b: p = 0.4) (Fig. 1B, Table 2), and MTS (pT2: p = 0.3; pT3a: p = 0.6; ≥pT3b: p = 0.9). The NeuroSAFE-navigated patients reported a better 1-yr EF than non-NeuroSAFE (68% vs. 58%, p = 0.02) and no differences in 1-yr and 2-yr continence rates (92.4% vs. 91.8%, and 93.4% vs. 93%, respectively). The main limitation is the retrospective study design. CONCLUSIONS While the NeuroSAFE approach did not show significant improvements in long-term oncologic or continence outcomes, it did provide an opportunity for a higher proportion of patients to improve postoperative functional results, possibly through increased nerve-sparing procedures.
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Affiliation(s)
- Francesca Ambrosini
- Martini-Klinik Prostate Cancer Center, University Hospital Hamburg-Eppendorf, Hamburg, Germany
- IRCCS Ospedale Policlinico San Martino, Genova, Italia
| | - Felix Preisser
- 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
| | - Hans Heinzer
- Martini-Klinik Prostate Cancer Center, University Hospital Hamburg-Eppendorf, Hamburg, Germany
| | - Georg Salomon
- Martini-Klinik Prostate Cancer Center, University Hospital Hamburg-Eppendorf, Hamburg, Germany
| | - Uwe Michl
- Martini-Klinik Prostate Cancer Center, University Hospital Hamburg-Eppendorf, Hamburg, Germany
| | - Thomas Steuber
- Martini-Klinik Prostate Cancer Center, University Hospital Hamburg-Eppendorf, Hamburg, Germany
| | - Tobias Maurer
- Martini-Klinik Prostate Cancer Center, University Hospital Hamburg-Eppendorf, Hamburg, Germany
| | - Felix K H Chun
- Department of Urology, University Hospital Frankfurt, Frankfurt am Main, Germany
| | - Lars Budäus
- Martini-Klinik Prostate Cancer Center, University Hospital Hamburg-Eppendorf, Hamburg, Germany
| | - Randi M Pose
- Martini-Klinik Prostate Cancer Center, University Hospital Hamburg-Eppendorf, Hamburg, Germany
| | - Carlo Terrone
- IRCCS Ospedale Policlinico San Martino, Genova, Italia
| | - Thorsten Schlomm
- Department of Urology, Charité Universitätsmedizin Berlin, Berlin, Germany
| | - Pierre Tennstedt
- Martini-Klinik Prostate Cancer Center, University Hospital Hamburg-Eppendorf, Hamburg, Germany
| | - Hartwig Huland
- Martini-Klinik Prostate Cancer Center, University Hospital Hamburg-Eppendorf, Hamburg, 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.
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Siech C, Gruber A, Wenzel M, Humke C, Karakiewicz PI, Kluth LA, Chun FKH, Hoeh B, Mandel P. Cardiovascular Disease and Chronic Pulmonary Disease Increase the Risk of Short-Term Major Postoperative Complications after Robotic-Assisted Radical Prostatectomy. MEDICINA (KAUNAS, LITHUANIA) 2024; 60:173. [PMID: 38256433 PMCID: PMC10820446 DOI: 10.3390/medicina60010173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Revised: 01/03/2024] [Accepted: 01/16/2024] [Indexed: 01/24/2024]
Abstract
Background and objectives: Certain comorbidities may be associated with a higher risk of complications after robotic-assisted radical prostatectomy. Material and Methods: Relying on a tertiary care database, we identified robotic-assisted radical prostatectomy patients (January 2014-March 2023). Short-term major postoperative complications were defined according to Clavien Dindo as ≥IIIa within 30 days after robotic-assisted radical prostatectomy. Results: Of 1148 patients, the rates of postoperative Clavien Dindo IIIa, Clavien Dindo IIIb, Clavien Dindo IVa, and Clavien Dindo IVb complications were 3.3%, 1.4%, 0.3%, and 0.2%, respectively. Of those, 28 (47%) had lymphoceles, and 8 (13%) had bleeding-associated complications. Patients with cardiovascular disease (8 vs. 4%) or chronic pulmonary disease (13 vs. 5%) were more likely to have complications. In multivariable logistic regression models, cardiovascular disease (odds ratio: 1.78; p = 0.046) and chronic pulmonary disease (odds ratio: 3.29; p = 0.007) remained associated with an increased risk of postoperative complications. Conclusions: Complications after robotic-assisted radical prostatectomy are predominantly manageable without anesthesia. Concomitant cardiovascular disease and chronic pulmonary disease were both associated with a higher risk of postoperative complications.
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Affiliation(s)
- Carolin Siech
- Goethe University Frankfurt, University Hospital, Department of Urology, 60629 Frankfurt am Main, Germany
- Cancer Prognostics and Health Outcomes Unit, Division of Urology, University of Montréal Health Center, Montréal, QC H2X3E4, Canada
| | - Antonia Gruber
- Goethe University Frankfurt, University Hospital, Department of Urology, 60629 Frankfurt am Main, Germany
| | - Mike Wenzel
- Goethe University Frankfurt, University Hospital, Department of Urology, 60629 Frankfurt am Main, Germany
| | - Clara Humke
- Goethe University Frankfurt, University Hospital, Department of Urology, 60629 Frankfurt am Main, Germany
| | - Pierre I. Karakiewicz
- Cancer Prognostics and Health Outcomes Unit, Division of Urology, University of Montréal Health Center, Montréal, QC H2X3E4, Canada
| | - Luis A. Kluth
- Goethe University Frankfurt, University Hospital, Department of Urology, 60629 Frankfurt am Main, Germany
| | - Felix K. H. Chun
- Goethe University Frankfurt, University Hospital, Department of Urology, 60629 Frankfurt am Main, Germany
| | - Benedikt Hoeh
- Goethe University Frankfurt, University Hospital, Department of Urology, 60629 Frankfurt am Main, Germany
| | - Philipp Mandel
- Goethe University Frankfurt, University Hospital, Department of Urology, 60629 Frankfurt am Main, Germany
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Leitsmann C, Uhlig A, Bremmer F, Mohr MN, Trojan L, Leitsmann M, Reichert M. Impact of multiparametric magnetic resonance imaging targeted biopsy on functional outcomes in patients following robot-assisted laparoscopic radical prostatectomy. Front Surg 2023; 10:1305365. [PMID: 38053718 PMCID: PMC10694190 DOI: 10.3389/fsurg.2023.1305365] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2023] [Accepted: 11/07/2023] [Indexed: 12/07/2023] Open
Abstract
Introduction Multiparametric magnetic resonance imaging guided prostate biopsy (mpMRI PBx) leads to a higher rate of successful nerve-sparing in robot-assisted laparoscopic prostatectomy (ns-RALP) for prostate cancer (PCa). This study aimed to evaluate the impact of mpMRI PBx compared to standard ultrasound-guided PBx on functional outcomes focusing on erectile function in patients following ns-RALP. Material and methods All RALPs performed between 01/2016 and 06/2021 were retrospectively stratified according to (attempted) ns vs. non ns RALPs and were then categorized based on the PBx technique (mpMRI PBx vs. standard PBx). We compared RALP outcomes such as pathological tumor stage, rates of secondary nerve resection (SNR) and positive surgical margin status (PSM). Furthermore, we explored the association between PBx-technique and patient-reported outcomes assessed 12 months after RALP using the prospectively collected 26-item Expanded Prostate Cancer Index Composite (EPIC-26) questionnaire. Chi-square tests and logistic regression analysis were conducted. Results A total of 849 RALPs included 517 (61%) procedures with (attempted) ns. Among these, 37.5% were diagnosed via preoperative mpMRI PBx. Patients with a preoperative standard PBx had a 57% higher association of PSM (p = 0.030) compared to patients with mpMRI PBx and a 24% higher risk of erectile dysfunction (ED) 12 months post RALP (p = 0.025). When ns was attempted, we observed a significantly higher rate of SNR in patients who underwent a standard PBx compared to those who received a mpMRI PBx (50.8% vs. 26.7%, p < 0.001) prior RALP. In comparison, upgrading occurred more often in the standard PBx group (50% vs. 40% mpMRI PBx, p = 0.008). Conclusion The combination of mpMRI PBx for PCa diagnosis followed by ns-RALP resulted in significantly fewer cases of SNR, better oncological outcomes and reduced incidence of ED 1 year after surgery. This included fewer PSM and a lower rate of postoperative tumor upgrading.
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Affiliation(s)
- Conrad Leitsmann
- Department of Urology, University Medical Center Goettingen, Goettingen, Germany
| | - Annemarie Uhlig
- Department of Urology, University Medical Center Goettingen, Goettingen, Germany
| | - Felix Bremmer
- Department of Pathology, University Medical Center Goettingen, Goettingen, Germany
| | - Mirjam Naomi Mohr
- Department of Urology, University Medical Center Goettingen, Goettingen, Germany
| | - Lutz Trojan
- Department of Urology, University Medical Center Goettingen, Goettingen, Germany
| | | | - Mathias Reichert
- Department of Urology, University Medical Center Goettingen, Goettingen, Germany
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Harms JWA, Streckert EMS, Kiolbassa NM, Thomas C, Grauer O, Oertel M, Eich HT, Stummer W, Paulus W, Brokinkel B. Confounders of intraoperative frozen section pathology during glioma surgery. Neurosurg Rev 2023; 46:286. [PMID: 37891361 DOI: 10.1007/s10143-023-02169-z] [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: 04/28/2023] [Revised: 07/31/2023] [Accepted: 09/24/2023] [Indexed: 10/29/2023]
Abstract
Although frozen section pathology (FSP) is commonly performed during surgery for glioma-suspicious lesions, confounders of accuracy are largely unknown. FSP and final diagnosis were compared in 398 surgeries for glioma-suspicious lesions. Diagnostic accuracy, risk factors for diagnostic shift from neoplastic to non-neoplastic tissue and vice versa according to the final diagnosis, and the impact on intraoperative and postoperative decision-making were analyzed. Diagnostic shift occurred in 70 cases (18%), and sensitivity, specificity, and the positive (PPV) and negative (NPV) predictive value of FSP were 82.5%, 77.8%, 99.4%, and 9.3%, respectively. No correlations between shift and patients' age and sex, sample fluorescence or volume, tumor location, correct information on the pathology form, final high- or low-grade histology, or molecular alterations were found (p > .05, each). Shift was more common after irradiation (25% vs 15%; p = .025) or chemotherapy (26% vs 15%; p = .022) than in treatment naïve cases and correlated with the type of surgery (p = .002). FSP altered intraoperative decision-making in 25 cases (6%). Postoperative shift led to repeated surgery in 12 patients (3%). In 45 cases, in which FSP and final diagnosis based on the same tissue, shift occurred in only 5 patients (11%), and sensitivity, specificity, PPV, and NPV for FSP were 77.4%, 78.6%, 88.9%, and 61.1%, respectively. No correlations between diagnostic shift and any of the analyzed variables were found (p > .05, each). Although accuracy of FSP during glioma surgery is sufficient, moderate NPV should be considered during intraoperative decision-making. While confounders are sparse, accuracy might be increased by repeated sampling. Diagnostic shift rarely alters postoperative treatment strategy.
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Affiliation(s)
| | | | | | - Christian Thomas
- Institute of Neuropathology, University Hospital Münster, Münster, Germany
| | - Oliver Grauer
- Department of Neurology with Institute of Translational Neurology, University Hospital Münster, Münster, Germany
| | - Michael Oertel
- Department of Radiation Oncology, University Hospital Münster, Münster, Germany
| | - Hans Theodor Eich
- Department of Radiation Oncology, University Hospital Münster, Münster, Germany
| | - Walter Stummer
- Department of Neurosurgery, University Hospital Münster, Münster, Germany
| | - Werner Paulus
- Institute of Neuropathology, University Hospital Münster, Münster, Germany
| | - Benjamin Brokinkel
- Department of Neurosurgery, University Hospital Münster, Münster, Germany.
- Institute of Neuropathology, University Hospital Münster, Münster, Germany.
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Köseoğlu E, Kulaç İ, Armutlu A, Gürses B, Seymen H, Vural M, Aykanat İC, Tarım K, Sarıkaya AF, Kılıç M, Baydar DE, Demirkol MO, Balbay MD, Kordan Y, Canda AE, Esen T. Intraoperative Frozen Section via Neurosafe During Robotic Radical Prostatectomy in the Era of Preoperative Risk Stratifications and Primary Staging With mpMRI and PSMA-PET CT: Is There a Perfect Candidate? Clin Genitourin Cancer 2023; 21:602-611. [PMID: 37451883 DOI: 10.1016/j.clgc.2023.06.014] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2023] [Revised: 06/01/2023] [Accepted: 06/25/2023] [Indexed: 07/18/2023]
Abstract
BACKGROUND We aimed to analyze the effect of preoperative risk assessment including Ga-68 PSMA PET and multiparametric magnetic resonance imaging (mpMRI) on nerve sparing practices, positive surgical margin (PSM) rates and oncological outcomes based on a comparison between patients underwent RARP with and without Neurosafe (NS). METHODS Patients underwent RARP with NS (RARP-NS) or without (RARP-only) NS retrospectively evaluated. Suspicion for extracapsular extension on mpMRI and/or Ga-68 PSMA PET was recorded as i(imaging)T3. NS was performed according to the Martini-Klinik technique. PSM at preserved bundle side were called PSM at region of interest (ROI) while the others were elsewhere. RESULTS A total of 208 patients (90 in RARP-NS, 118 in RARP-only groups) were included. Preoperatively the RARP-only group showed significantly higher mean PSA (p = .01) and PIRADS 5 (p = .002) findings and had more D'Amico high risk (DAHR) patients (p = .08). The overall PSM rates for pT2 versus pT3 disease were 7.5% versus 21.6 and 15.6% versus 55% in RARP-NS and RARP-only groups, respectively. NS resulted in more bilaterally preserved bundles (81.1% vs. 66.3%) and less PSM at the ROI (3.3% vs. 23.4%) than RARP-only group. NS outperformed RARP-only in all clinical settings had its highest differential benefit in more bilateral nerve sparing and less PSM at ROI in patients with both DAHR and iT3 disease. BCR rates were 2.2% and 2.5% for RARP-NS and RARP only groups, respectively (p = .4). One patient in RARP-NS and 9 in RARP-only groups had PSA persistence (p = .02). CONCLUSION RARP-NS led to more preserved bundles with less PSM. It was especially useful in DAHR patients with preoperative extracapsular extension suspicion in imaging simultaneously.
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Affiliation(s)
- Ersin Köseoğlu
- Department of Urology, Koç University School of Medicine, Istanbul, Turkey.
| | - İbrahim Kulaç
- Department of Pathology, Koç University School of Medicine, Istanbul, Turkey
| | - Ayşe Armutlu
- Department of Pathology, Koç University School of Medicine, Istanbul, Turkey
| | - Bengi Gürses
- Department of Radiology, Koç University School of Medicine, Istanbul, Turkey
| | - Hülya Seymen
- Department of Nuclear Medicine, Koç University School of Medicine, Istanbul, Turkey
| | - Metin Vural
- Radiology Clinic, VKF American Hospital, Istanbul, Turkey
| | | | - Kayhan Tarım
- Department of Urology, Koç University School of Medicine, Istanbul, Turkey
| | | | - Mert Kılıç
- Urology Clinic, VKF American Hospital, Istanbul, Turkey
| | - Dilek Ertoy Baydar
- Department of Pathology, Koç University School of Medicine, Istanbul, Turkey
| | - Mehmet Onur Demirkol
- Department of Nuclear Medicine, Koç University School of Medicine, Istanbul, Turkey
| | - Mevlana Derya Balbay
- Department of Urology, Koç University School of Medicine, Istanbul, Turkey; Urology Clinic, VKF American Hospital, Istanbul, Turkey
| | - Yakup Kordan
- Department of Urology, Koç University School of Medicine, Istanbul, Turkey
| | | | - Tarık Esen
- Department of Urology, Koç University School of Medicine, Istanbul, Turkey; Urology Clinic, VKF American Hospital, Istanbul, Turkey
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Cano Garcia C, Wenzel M, Koll F, Zatik A, Köllermann J, Graefen M, Tilki D, Karakiewicz PI, Kluth LA, Chun FKH, Mandel P, Hoeh B. Differences in long-term continence rates between prostate cancer patients with extraprostatic vs. organ-confined disease undergoing robotic-assisted radical prostatectomy: An observational studys. Clinics (Sao Paulo) 2023; 78:100284. [PMID: 37783172 PMCID: PMC10551827 DOI: 10.1016/j.clinsp.2023.100284] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Revised: 08/28/2023] [Accepted: 08/31/2023] [Indexed: 10/04/2023] Open
Abstract
OBJECTIVES Within the tertiary-case database, the authors tested for differences in long-term continence rates (≥ 12 months) between prostate cancer patients with extraprostatic vs. organ-confined disease who underwent Robotic-Assisted Radical Prostatectomy (RARP). METHOD In the institutional tertiary-care database the authors identified prostate cancer patients who underwent RARP between 01/2014 and 01/2021. The cohort was divided into two groups based on tumor extension in the final RARP specimen: patients with extraprostatic (pT3/4) vs. organ-confined (pT2) disease. Additionally, the authors conducted subgroup analyses within both the extraprostatic and organ-confined disease groups to compare continence rates before and after the implementation of the new surgical technique, which included Full Functional-Length Urethra preservation (FFLU) and Neurovascular Structure-Adjacent Frozen-Section Examination (NeuroSAFE). Multivariable logistic regression models addressing long-term continence were used. RESULTS Overall, the authors identified 201 study patients of whom 75 (37 %) exhibited extraprostatic and 126 (63 %) organ-confined disease. There was no significant difference in long-term continence rates between patients with extraprostatic and organ-confined disease (77 vs. 83 %; p = 0.3). Following the implementation of FFLU+ NeuroSAFE, there was an overall improvement in continence from 67 % to 89 % (Δ = 22 %; p < 0.001). No difference in the magnitude of improved continence rates between extraprostatic vs. organ-confined disease was observed (Δ = 22 % vs. Δ = 20 %). In multivariable logistic regression models, no difference between extraprostatic vs. organ-confined disease in long-term continence was observed (Odds Ratio: 0.91; p = 0.85). CONCLUSION In this tertiary-based institutional study, patients with extraprostatic and organ-confined prostate cancer exhibited comparable long-term continence rates.
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Affiliation(s)
- Cristina Cano Garcia
- Goethe University Frankfurt, University Hospital Frankfurt, Department of Urology, Germany; Cancer Prognostics and Health Outcomes Unit, Division of Urology, University of Montréal Health Center, Montréal, Québec, Canada.
| | - Mike Wenzel
- Goethe University Frankfurt, University Hospital Frankfurt, Department of Urology, Germany
| | - Florestan Koll
- Goethe University Frankfurt, University Hospital Frankfurt, Department of Urology, Germany
| | - Agnes Zatik
- Goethe University Frankfurt, University Hospital Frankfurt, Department of Urology, 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
| | - 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
| | - Pierre I Karakiewicz
- Cancer Prognostics and Health Outcomes Unit, Division of Urology, University of Montréal Health Center, Montréal, Québec, Canada
| | - Luis A Kluth
- Goethe University Frankfurt, University Hospital Frankfurt, Department of Urology, Germany
| | - Felix K H Chun
- Goethe University Frankfurt, University Hospital Frankfurt, Department of Urology, Germany
| | - Philipp Mandel
- Goethe University Frankfurt, University Hospital Frankfurt, Department of Urology, Germany
| | - Benedikt Hoeh
- Goethe University Frankfurt, University Hospital Frankfurt, Department of Urology, Germany
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7
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van der Slot MA, Remmers S, van Leenders GJLH, Busstra MB, Gan M, Klaver S, Rietbergen JBW, den Bakker MA, Kweldam CF, Bangma CH, Roobol MJ, Venderbos LDF. Urinary Incontinence and Sexual Function After the Introduction of NeuroSAFE in Radical Prostatectomy for Prostate Cancer. Eur Urol Focus 2023; 9:824-831. [PMID: 37032279 DOI: 10.1016/j.euf.2023.03.021] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Revised: 02/28/2023] [Accepted: 03/28/2023] [Indexed: 04/11/2023]
Abstract
BACKGROUND Nerve-sparing (NS) radical prostatectomy (RP) results in better functional outcomes. Intraoperative neurovascular structure-adjacent frozen section examination (NeuroSAFE) significantly increases the frequency of NS surgery. The effect of NeuroSAFE on postoperative erectile function (EF) and continence is not yet clear. OBJECTIVE To describe EF and continence outcomes for men undergoing RP with the NeuroSAFE technique. DESIGN, SETTING, AND PARTICIPANTS Between September 2018 and February 2021, 1034 men underwent robot-assisted RP. Data for patient-reported outcomes were collected via validated questionnaires. INTERVENTION NeuroSAFE technique for RP. OUTCOME MEASUREMENTS AND STATISTICAL ANALYSIS Continence was assessed using the International Consultation on Incontinence Questionnaire-Urinary Incontinence Short Form (ICIQ-UI SF) or Expanded Prostate Cancer Index Composite short form (EPIC-26) and defined as use of 0-1 pads/d. EF was evaluated using EPIC-26 or the International Index of Erectile Function short form (IIEF-5), with data converted according to the Vertosick method and categorized. Descriptive statistics were used to asses and describe tumor characteristics and continence and EF outcomes. RESULTS AND LIMITATIONS Of the 1034 men who underwent RP after introduction of the NeuroSAFE technique, 63% and 60% completed a preoperative and at least one postoperative questionnaire on continence and EF, respectively. Of the men who underwent unilateral or bilateral NS surgery, use of 0-1 pads/d was reported by 93% after 1 yr and 96% after 2 yr; the corresponding rates for men who underwent non-NS surgery were 86% and 78%. Overall, use of 0-1 pads/d was reported by 92% of the men at 1 yr and by 94% at 2 yr after RP. Men in the NS group had a good or intermediate Vertosick score after RP more often than the non-NS group. Overall, 44% of the men had a good or intermediate Vertosick score at 1 and 2 yr after RP. CONCLUSIONS After introduction of the NeuroSAFE technique, the continence rate was 92% at 1 yr and 94% at 2 yr after RP. The NS group had a greater percentage of men with an intermediate or good Vertosick score and a higher continence rate after RP in comparison to the non-NS group. PATIENT SUMMARY Our study shows that after introduction of the NeuroSAFE technique during removal of the prostate, the continence rate among patients was 92% at 1 year and 94% at 2 years after surgery. Some 44% of the men had a good or intermediate score for erectile function 1 and 2 years after surgery.
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Affiliation(s)
- Margaretha A van der Slot
- Anser Prostate Operation Clinic, Rotterdam, The Netherlands; Department of Pathology, Maasstad Hospital, Rotterdam, The Netherlands; Department of Urology, Maasstad Hospital, Rotterdam, The Netherlands.
| | - Sebastiaan Remmers
- Department of Urology, Erasmus MC Cancer Institute, University Medical Centre, Rotterdam, The Netherlands
| | - Geert J L H van Leenders
- Department of Pathology, Erasmus MC Cancer Institute, University Medical Centre, Rotterdam, The Netherlands
| | - Martijn B Busstra
- Anser Prostate Operation Clinic, Rotterdam, The Netherlands; Department of Urology, Erasmus MC Cancer Institute, University Medical Centre, Rotterdam, The Netherlands
| | - Melanie Gan
- Anser Prostate Operation Clinic, Rotterdam, The Netherlands; Department of Urology, Maasstad Hospital, Rotterdam, The Netherlands
| | - Sjoerd Klaver
- Anser Prostate Operation Clinic, Rotterdam, The Netherlands; Department of Urology, Maasstad Hospital, Rotterdam, The Netherlands
| | - John B W Rietbergen
- Anser Prostate Operation Clinic, Rotterdam, The Netherlands; Department of Urology, Franciscus Gasthuis & Vlietland, Rotterdam, The Netherlands
| | - Michael A den Bakker
- Anser Prostate Operation Clinic, Rotterdam, The Netherlands; Department of Pathology, Maasstad Hospital, Rotterdam, The Netherlands
| | - Charlotte F Kweldam
- Anser Prostate Operation Clinic, Rotterdam, The Netherlands; Department of Pathology, Maasstad Hospital, Rotterdam, The Netherlands
| | - Chris H Bangma
- Anser Prostate Operation Clinic, Rotterdam, The Netherlands; Department of Urology, Erasmus MC Cancer Institute, University Medical Centre, Rotterdam, The Netherlands
| | - Monique J Roobol
- Department of Urology, Erasmus MC Cancer Institute, University Medical Centre, Rotterdam, The Netherlands
| | - Lionne D F Venderbos
- Department of Urology, Erasmus MC Cancer Institute, University Medical Centre, Rotterdam, The Netherlands.
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8
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van der Slot MA, Remmers S, Kweldam CF, den Bakker MA, Nieboer D, Busstra MB, Gan M, Klaver S, Rietbergen JBW, van Leenders GJLH. Biopsy prostate cancer perineural invasion and tumour load are associated with positive posterolateral margins at radical prostatectomy: implications for planning of nerve-sparing surgery. Histopathology 2023; 83:348-356. [PMID: 37140551 DOI: 10.1111/his.14934] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2023] [Revised: 04/06/2023] [Accepted: 04/16/2023] [Indexed: 05/05/2023]
Abstract
AIMS Radical prostatectomy (RP) for prostate cancer is frequently complicated by erectile dysfunction and urinary incontinence. However, sparing of the nerve bundles adjacent to the posterolateral sides of the prostate reduces the number of complications at the risk of positive surgical margins. Preoperative selection of men eligible for safe, nerve-sparing surgery is therefore needed. Our aim was to identify pathological factors associated with positive posterolateral surgical margins in men undergoing bilateral nerve-sparing RP. METHODS AND RESULTS Prostate cancer patients undergoing RP with standardised intra-operative surgical margin assessment according to the NeuroSAFE technique were included. Preoperative biopsies were reviewed for grade group (GG), cribriform and/or intraductal carcinoma (CR/IDC), perineural invasion (PNI), cumulative tumour length and extraprostatic extension (EPE). Of 624 included patients, 573 (91.8%) received NeuroSAFE bilaterally and 51 (8.2%) unilaterally, resulting in a total of 1197 intraoperative posterolateral surgical margin assessments. Side-specific biopsy findings were correlated to ipsilateral NeuroSAFE outcome. Higher biopsy GG, CR/IDC, PNI, EPE, number of positive biopsies and cumulative tumour length were all associated with positive posterolateral margins. In multivariable bivariate logistic regression, ipsilateral PNI [odds ratio (OR) = 2.98, 95% confidence interval (CI) = 1.62-5.48; P < 0.001] and percentage of positive cores (OR = 1.18, 95% CI = 1.08-1.29; P < 0.001) were significant predictors for a positive posterolateral margin, while GG and CR/IDC were not. CONCLUSIONS Ipsilateral PNI and percentage of positive cores were significant predictors for a positive posterolateral surgical margin at RP. Biopsy PNI and tumour volume can therefore support clinical decision-making on the level of nerve-sparing surgery in prostate cancer patients.
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Affiliation(s)
- Margaretha A van der Slot
- Anser Prostate Operation Clinic, Rotterdam, the Netherlands
- Department of Pathology, Maasstad Hospital, Rotterdam, the Netherlands
- Department of Urology, Maasstad Hospital, Rotterdam, the Netherlands
| | - Sebastiaan Remmers
- Department of Urology, Erasmus MC Cancer Institute, University Medical Centre, Rotterdam, the Netherlands
| | - Charlotte F Kweldam
- Anser Prostate Operation Clinic, Rotterdam, the Netherlands
- Department of Pathology, Maasstad Hospital, Rotterdam, the Netherlands
| | - Michael A den Bakker
- Anser Prostate Operation Clinic, Rotterdam, the Netherlands
- Department of Pathology, Maasstad Hospital, Rotterdam, the Netherlands
| | - Daan Nieboer
- Department of Urology, Erasmus MC Cancer Institute, University Medical Centre, Rotterdam, the Netherlands
- Department of Public Health, Erasmus University Medical Center Rotterdam, Rotterdam, the Netherlands
| | - Martijn B Busstra
- Anser Prostate Operation Clinic, Rotterdam, the Netherlands
- Department of Urology, Erasmus MC Cancer Institute, University Medical Centre, Rotterdam, the Netherlands
| | - Melanie Gan
- Anser Prostate Operation Clinic, Rotterdam, the Netherlands
- Department of Urology, Maasstad Hospital, Rotterdam, the Netherlands
| | - Sjoerd Klaver
- Anser Prostate Operation Clinic, Rotterdam, the Netherlands
- Department of Urology, Maasstad Hospital, Rotterdam, the Netherlands
| | - John B W Rietbergen
- Anser Prostate Operation Clinic, Rotterdam, the Netherlands
- Department of Urology, Franciscus Gasthuis and Vlietland, Rotterdam, the Netherlands
| | - Geert J L H van Leenders
- Department of Pathology, Erasmus MC Cancer Institute, University Medical Centre, Rotterdam, the Netherlands
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9
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Gretser S, Hoeh B, Kinzler MN, Reitz A, Preisser F, Kluth LA, Mandel P, Chun FKH, Reis H, Wild PJ, Köllermann J. The NeuroSAFE frozen section technique during radical prostatectomy - Implementation and optimization of technical aspects in a routine pathology workflow. Pathol Res Pract 2023; 242:154297. [PMID: 36621159 DOI: 10.1016/j.prp.2022.154297] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Revised: 12/28/2022] [Accepted: 12/28/2022] [Indexed: 01/01/2023]
Abstract
BACKGROUND AND AIMS In prostate cancer patients, application of the NeuroSAFE frozen section technique during radical prostatectomy has been shown to increase the rate of nerve sparing surgery and to improve functional outcome for the patients. The aim of this study is to report on technical and organizational optimization opportunities of the procedure. MATERIAL AND METHODS All patients submitted to bilateral intraoperative frozen section from January 2018 until December 2020 (n = 452) were retrospectively analyzed and parameters such as turnaround time, staff situation in the laboratory and histologic properties of the tumors were assessed. RESULTS The median turnaround time per case was 40.3 ( ± 10.5) min. In 2020 the average time needed from accessioning to diagnosis was 38.1 min. Multivariate linear regression suggested that the number of technical assistants/cryotomes (46.1 min vs. 39.13 min; p < 0.001), the place of microscopic examination (43.0 min vs. 38.7 min; p < 0.001) and the presence of a positive margin (38.0 vs. 44.0 min; p < 0.001) were significant influential factors. The turnaround time was independent of the uropathological expertize of the consultant (39.84 min vs. 40.7 min; p = 0.09), the tumor grade (42.3 vs 39.8 min; p = 0.493) and the presence of extraprostatic extension (44.0 vs 39.8 min; p = 0.099). CONCLUSION The implementation of simple optimization measures in the workflow as well as structured training of all pathology staff involved in the examination leads to a significant increase in the efficiency of the examination while maintaining the same level of resources. The results could thus be a contribution to the broader application of the procedure.
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Affiliation(s)
- S Gretser
- Dr. Senckenberg Institute of Pathology, University Hospital Frankfurt, Goethe University Frankfurt am Main, Germany.
| | - B Hoeh
- Department of Urology, University Hospital Frankfurt, Goethe University Frankfurt am Main, Germany
| | - M N Kinzler
- Dr. Senckenberg Institute of Pathology, University Hospital Frankfurt, Goethe University Frankfurt am Main, Germany; Department of Internal Medicine I, University Hospital Frankfurt, Goethe University Frankfurt am Main, Germany
| | - A Reitz
- Dr. Senckenberg Institute of Pathology, University Hospital Frankfurt, Goethe University Frankfurt am Main, Germany
| | - F Preisser
- Department of Urology, University Hospital Frankfurt, Goethe University Frankfurt am Main, Germany
| | - L A Kluth
- Department of Urology, University Hospital Frankfurt, Goethe University Frankfurt am Main, Germany
| | - P Mandel
- Department of Urology, University Hospital Frankfurt, Goethe University Frankfurt am Main, Germany
| | - F K H Chun
- Department of Urology, University Hospital Frankfurt, Goethe University Frankfurt am Main, Germany
| | - H Reis
- Dr. Senckenberg Institute of Pathology, University Hospital Frankfurt, Goethe University Frankfurt am Main, Germany
| | - P J Wild
- Dr. Senckenberg Institute of Pathology, University Hospital Frankfurt, Goethe University Frankfurt am Main, Germany; Wildlab, University Hospital Frankfurt MVZ GmbH, Frankfurt am Main, Germany; Frankfurt Institute for Advanced Studies (FIAS), Frankfurt am Main, Germany; Frankfurt Cancer Institute (FCI), University Hospital Frankfurt, Goethe University Frankfurt am Main, Germany
| | - J Köllermann
- Dr. Senckenberg Institute of Pathology, University Hospital Frankfurt, Goethe University Frankfurt am Main, Germany
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10
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Hoeh B, Hohenhorst JL, Wenzel M, Humke C, Preisser F, Wittler C, Brand M, Köllermann J, Steuber T, Graefen M, Tilki D, Karakiewicz PI, Becker A, Kluth LA, Chun FKH, Mandel P. Full functional-length urethral sphincter- and neurovascular bundle preservation improves long-term continence rates after robotic-assisted radical prostatectomy. J Robot Surg 2023; 17:177-184. [PMID: 35459985 PMCID: PMC9939484 DOI: 10.1007/s11701-022-01408-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2021] [Accepted: 03/22/2022] [Indexed: 11/26/2022]
Abstract
The objective of the study was to test the impact of implementing standard full functional-length urethral sphincter (FFLU) and neurovascular bundle preservation (NVBP) with intraoperative frozen section technique (IFT) on long-term urinary continence in patients undergoing robotic-assisted radical prostatectomy (RARP). We relied on an institutional tertiary-care database to identify patients who underwent RARP between 01/2014 and 09/2019. Until 10/2017, FFLU was not performed and decision for NVBP was taken without IFT. From 11/2017, FFLU and IFT-guided NVBP was routinely performed in all patients undergoing RARP. Long-term continence (≥ 12 months) was defined as the usage of no or one safety- pad. Uni- and multivariable logistic regression models tested the correlation between surgical approach (standard vs FFLU + NVBP) and long-term continence. Covariates consisted of age, body mass index, prostate volume and extraprostatic extension of tumor. The study cohort consisted of 142 patients, with equally sized groups for standard vs FFLU + NVBP RARP (68 vs 74 patients). Routine FFLU + NVBP implementation resulted in a long-term continence rate of 91%, compared to 63% in standard RARP (p < 0.001). Following FFLU + NVBP RARP, 5% needed 1-2, 4% 3-5 pads/24 h and no patient (0%) suffered severe long-term incontinence (> 5 pads/24 h). No significant differences in patient or tumor characteristics were recorded between both groups. In multivariable logistic regression models, FFLU + NVBP was a robust predictor for continence (Odds ratio [OR]: 7.62; 95% CI 2.51-27.36; p < 0.001). Implementation of FFLU and NVBP in patients undergoing RARP results in improved long-term continence rates of 91%.
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Affiliation(s)
- Benedikt Hoeh
- Department of Urology, University Hospital Frankfurt, Goethe University Frankfurt am Main, Theodor-Stern-Kai 7, 60590, Frankfurt am Main, Germany.
- Cancer Prognostics and Health Outcomes Unit, Division of Urology, University of Montréal Health Center, Montréal, QC, Canada.
| | - Jan L 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
| | - Mike Wenzel
- Department of Urology, University Hospital Frankfurt, Goethe University Frankfurt am Main, Theodor-Stern-Kai 7, 60590, Frankfurt am Main, Germany
| | - Clara Humke
- Department of Urology, University Hospital Frankfurt, Goethe University Frankfurt am Main, Theodor-Stern-Kai 7, 60590, Frankfurt am Main, Germany
| | - Felix Preisser
- Department of Urology, University Hospital Frankfurt, Goethe University Frankfurt am Main, Theodor-Stern-Kai 7, 60590, Frankfurt am Main, Germany
| | - Clarissa Wittler
- Department of Urology, University Hospital Frankfurt, Goethe University Frankfurt am Main, Theodor-Stern-Kai 7, 60590, Frankfurt am Main, Germany
| | - Marie Brand
- Department of Urology, University Hospital Frankfurt, Goethe University Frankfurt am Main, Theodor-Stern-Kai 7, 60590, Frankfurt am Main, Germany
| | - Jens Köllermann
- Dr. Senckenberg Institute of Pathology, University Hospital Frankfurt, Frankfurt am Main, Germany
| | - Thomas Steuber
- Martini-Klinik Prostate Cancer Center, University Hospital Hamburg-Eppendorf, Hamburg, Germany
| | - Markus Graefen
- 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
| | - Pierre I Karakiewicz
- Cancer Prognostics and Health Outcomes Unit, Division of Urology, University of Montréal Health Center, Montréal, QC, Canada
| | - Andreas Becker
- Department of Urology, University Hospital Frankfurt, Goethe University Frankfurt am Main, Theodor-Stern-Kai 7, 60590, Frankfurt am Main, Germany
| | - Luis A Kluth
- Department of Urology, University Hospital Frankfurt, Goethe University Frankfurt am Main, Theodor-Stern-Kai 7, 60590, Frankfurt am Main, Germany
| | - Felix K H Chun
- Department of Urology, University Hospital Frankfurt, Goethe University Frankfurt am Main, Theodor-Stern-Kai 7, 60590, Frankfurt am Main, Germany
| | - Philipp Mandel
- Department of Urology, University Hospital Frankfurt, Goethe University Frankfurt am Main, Theodor-Stern-Kai 7, 60590, Frankfurt am Main, Germany
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11
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van der Slot MA, den Bakker MA, Tan TSC, Remmers S, Busstra MB, Gan M, Klaver S, Rietbergen JBW, Kweldam CF, Kliffen M, Hamoen KE, Budel LM, Goemaere NNT, Helleman J, Bangma CH, Roobol MJ, van Leenders GJLH. NeuroSAFE in radical prostatectomy increases the rate of nerve-sparing surgery without affecting oncological outcome. BJU Int 2022; 130:628-636. [PMID: 35536200 PMCID: PMC9796592 DOI: 10.1111/bju.15771] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
OBJECTIVES To investigate the impact of intra-operative neurovascular structure-adjacent frozen-section examination (NeuroSAFE) on the rate of nerve-sparing surgery (NSS) and oncological outcome in a large radical prostatectomy (RP) cohort. PATIENTS AND METHODS Between January 2016 and December 2020, 1756 prostate cancer patients underwent robot-assisted RP, of whom 959 (55%) underwent this with NeuroSAFE and 797 (45%) without (control cohort). In cases where NeuroSAFE showed tumour in the margin, a secondary resection was performed. The effect of NeuroSAFE on NSS and positive surgical margin (PSM) status was analysed using logistic regression. Cox regression was used to identify predictors of biochemical recurrence-free survival (BCRFS). RESULTS AND LIMITATIONS Patients in the NeuroSAFE cohort had a higher tumour grade (P < 0.001) and clinical stage (P < 0.001) than those in the control cohort. NeuroSAFE enabled more frequent NSS for both pT2 (93% vs 76%; P < 0.001) and pT3 disease (83% vs 55%; P < 0.001). In adjusted analysis, NeuroSAFE resulted in more frequent unilateral (odds ratio [OR] 3.90, 95% confidence interval (CI) 2.90-5.30; P < 0.001) and bilateral (OR 5.22, 95% CI 3.90-6.98; P < 0.001) NSS. While the PSM rate decreased from 51% to 42% in patients with pT3 stage disease (P = 0.031), NeuroSAFE was not an independent predictor of PSM status (OR 0.85, 95% CI 0.68-1.06; P = 0.2) in the entire cohort. Patients who underwent NeuroSAFE had better BCRFS compared to the control cohort (hazard ratio 0.62, 95% CI 0.45-0.84; P = 0.002). This study is limited by its comparison with a historical cohort and lack of functional outcomes. CONCLUSIONS NeuroSAFE enables more unilateral and bilateral NSS without negatively affecting surgical margin status and biochemical recurrence. This validation study provides a comprehensive overview of the implementation, evaluation and intra-operative decision making associated with NeuroSAFE in clinical practice.
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Affiliation(s)
- Margaretha A. van der Slot
- Anser Prostate operation ClinicRotterdam,Department of PathologyMaasstad HospitalRotterdam,Department of UrologyMaasstad HospitalRotterdam
| | - Michael A. den Bakker
- Anser Prostate operation ClinicRotterdam,Department of PathologyMaasstad HospitalRotterdam
| | - Tamara S. C. Tan
- Department of UrologyErasmus MC University Medical CentreRotterdamThe Netherlands
| | - Sebastiaan Remmers
- Department of UrologyErasmus MC University Medical CentreRotterdamThe Netherlands
| | - Martijn B. Busstra
- Anser Prostate operation ClinicRotterdam,Department of UrologyErasmus MC University Medical CentreRotterdamThe Netherlands
| | - Melanie Gan
- Anser Prostate operation ClinicRotterdam,Department of UrologyMaasstad HospitalRotterdam
| | - Sjoerd Klaver
- Anser Prostate operation ClinicRotterdam,Department of UrologyMaasstad HospitalRotterdam
| | - John B. W. Rietbergen
- Anser Prostate operation ClinicRotterdam,Department of UrologyFranciscus Gasthuis & VlietlandRotterdamThe Netherlands
| | - Charlotte F. Kweldam
- Anser Prostate operation ClinicRotterdam,Department of PathologyMaasstad HospitalRotterdam
| | - Mike Kliffen
- Anser Prostate operation ClinicRotterdam,Department of PathologyMaasstad HospitalRotterdam
| | - Karen E. Hamoen
- Anser Prostate operation ClinicRotterdam,Department of PathologyMaasstad HospitalRotterdam
| | - Leo M. Budel
- Anser Prostate operation ClinicRotterdam,Department of PathologyMaasstad HospitalRotterdam
| | | | - Jozien Helleman
- Department of UrologyErasmus MC University Medical CentreRotterdamThe Netherlands
| | - Chris H. Bangma
- Department of UrologyErasmus MC University Medical CentreRotterdamThe Netherlands
| | - Monique J. Roobol
- Department of UrologyErasmus MC University Medical CentreRotterdamThe Netherlands
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12
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Kim M, Yoo D, Pyo J, Cho W. Clinicopathological Significances of Positive Surgical Resection Margin after Radical Prostatectomy for Prostatic Cancers: A Meta-Analysis. MEDICINA (KAUNAS, LITHUANIA) 2022; 58:medicina58091251. [PMID: 36143928 PMCID: PMC9500731 DOI: 10.3390/medicina58091251] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Revised: 08/12/2022] [Accepted: 08/26/2022] [Indexed: 12/24/2022]
Abstract
Background and Objectives: This study aims to elucidate the positive rate and the clinicopathological significance of surgical margin after radical prostatectomy (RP) through a meta-analysis. Materials and Methods: This meta-analysis finally used 59 studies, including the information about the positive surgical margin (PSM) and those clinicopathological significances after RP. The subgroup analysis for the estimated rates of PSM was evaluated based on types of surgery, grade groups, and pathological tumor (pT) stages. We compared the clinicopathological correlations between positive and negative surgical margins (NSM). Results: The estimated PSM rate was 25.3% after RP (95% confidence interval [CI] 21.9-29.0%). The PSM rates were 26.0% (95% CI 21.5-31.1%) 28.0% (95% CI 20.2-37.5%) in robot-assisted RP and nerve-sparing RP, respectively. The PSM rate was significantly higher in high-grade groups than in low-grade groups. In addition, the higher pT stage subgroup had a high PSM rate compared to the lower pT stage subgroups. Patients with PSM showed significantly high PSA levels, frequent lymphovascular invasion, lymph node metastasis, and extraprostatic extension. Biochemical recurrences (BCRs) were 28.5% (95% CI 21.4-36.9%) and 11.8% (95% CI 8.1-16.9%) in PSM and NSM subgroups, respectively. Patients with PSM showed worse BCR-free survival than those with NSM (hazard ratio 2.368, 95% CI 2.043-2.744%). Conclusions: Our results showed that PSM was significantly correlated with worse clinicopathological characteristics and biochemical recurrence-free survival. Among the results in preoperative evaluations, grade group and tumor stage are useful for the prediction of PSM.
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Affiliation(s)
- Minseok Kim
- Department of Urology, Chosun University Hospital, Chosun University School of Medicine, Gwangju 61453, Korea
| | - Daeseon Yoo
- Department of Urology, Daejeon Eulji University Hospital, Eulji University School of Medicine, Daejeon 35233, Korea
| | - Jungsoo Pyo
- Department of Pathology, Uijeongbu Eulji University Hospital, Eulji University School of Medicine, Uijeongbu 11759, Korea
| | - Wonjin Cho
- Department of Urology, Chosun University Hospital, Chosun University School of Medicine, Gwangju 61453, Korea
- Correspondence: ; Tel.: +82-62-220-3210
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13
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Dinneen E, Grierson J, Almeida-Magana R, Clow R, Haider A, Allen C, Heffernan-Ho D, Freeman A, Briggs T, Nathan S, Mallett S, Brew-Graves C, Muirhead N, Williams NR, Pizzo E, Persad R, Aning J, Johnson L, Oxley J, Oakley N, Morgan S, Tahir F, Ahmad I, Dutto L, Salmond JM, Kelkar A, Kelly J, Shaw G. NeuroSAFE PROOF: study protocol for a single-blinded, IDEAL stage 3, multi-centre, randomised controlled trial of NeuroSAFE robotic-assisted radical prostatectomy versus standard robotic-assisted radical prostatectomy in men with localized prostate cancer. Trials 2022; 23:584. [PMID: 35869497 PMCID: PMC9306247 DOI: 10.1186/s13063-022-06421-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Accepted: 05/24/2022] [Indexed: 11/30/2022] Open
Abstract
BACKGROUND Robotic radical prostatectomy (RARP) is a first-line curative treatment option for localized prostate cancer. Postoperative erectile dysfunction and urinary incontinence are common associated adverse side effects that can negatively impact patients' quality of life. Preserving the lateral neurovascular bundles (NS) during RARP improves functional outcomes. However, selecting men for NS may be difficult when there is concern about incurring in positive surgical margin (PSM) which in turn risks adverse oncological outcomes. The NeuroSAFE technique (intra-operative frozen section examination of the neurovascular structure adjacent prostate margin) can provide real-time pathological consult to promote optimal NS whilst avoiding PSM. METHODS NeuroSAFE PROOF is a single-blinded, multi-centre, randomised controlled trial (RCT) in which men are randomly allocated 1:1 to either NeuroSAFE RARP or standard RARP. Men electing for RARP as primary treatment, who are continent and have good baseline erectile function (EF), defined by International Index of Erectile Function (IIEF-5) score > 21, are eligible. NS in the intervention arm is guided by the NeuroSAFE technique. NS in the standard arm is based on standard of care, i.e. a pre-operative image-based planning meeting, patient-specific clinical information, and digital rectal examination. The primary outcome is assessment of EF at 12 months. The primary endpoint is the proportion of men who achieve IIEF-5 score ≥ 21. A sample size of 404 was calculated to give a power of 90% to detect a difference of 14% between groups based on a feasibility study. Oncological outcomes are continuously monitored by an independent Data Monitoring Committee. Key secondary outcomes include urinary continence at 3 months assessed by the international consultation on incontinence questionnaire, rate of biochemical recurrence, EF recovery at 24 months, and difference in quality of life. DISCUSSION NeuroSAFE PROOF is the first RCT of intra-operative frozen section during radical prostatectomy in the world. It is properly powered to evaluate a difference in the recovery of EF for men undergoing RARP assessed by patient-reported outcome measures. It will provide evidence to guide the use of the NeuroSAFE technique around the world. TRIAL REGISTRATION NCT03317990 (23 October 2017). Regional Ethics Committee; reference 17/LO/1978.
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Affiliation(s)
- Eoin Dinneen
- Division of Surgery & Interventional Science, University College London, London, UK.
- University College Hospital London, Department of Urology, Westmoreland Street Hospital, 6-18 Westmoreland Street, W1G 8PH, London, UK.
| | - Jack Grierson
- Division of Surgery & Interventional Science, University College London, London, UK
- University College Hospital London, Department of Urology, Westmoreland Street Hospital, 6-18 Westmoreland Street, W1G 8PH, London, UK
| | | | - Rosie Clow
- Division of Surgery & Interventional Science, University College London, London, UK
- University College Hospital London, Department of Urology, Westmoreland Street Hospital, 6-18 Westmoreland Street, W1G 8PH, London, UK
| | - Aiman Haider
- University College Hospital London, Department of Histopathology, 235 Euston Road, Bristol, NW1 2BU, UK
| | - Clare Allen
- University College Hospital London, Department of Urology, Westmoreland Street Hospital, 6-18 Westmoreland Street, W1G 8PH, London, UK
| | - Daniel Heffernan-Ho
- University College Hospital London, Department of Urology, Westmoreland Street Hospital, 6-18 Westmoreland Street, W1G 8PH, London, UK
| | - Alex Freeman
- University College Hospital London, Department of Histopathology, 235 Euston Road, Bristol, NW1 2BU, UK
| | - Tim Briggs
- University College Hospital London, Department of Urology, Westmoreland Street Hospital, 6-18 Westmoreland Street, W1G 8PH, London, UK
| | - Senthil Nathan
- University College Hospital London, Department of Urology, Westmoreland Street Hospital, 6-18 Westmoreland Street, W1G 8PH, London, UK
| | - Susan Mallett
- Division of Medicine, University College London, Charles Bell House, 43-45 Foley Street, Sheffield, W1W 7JN, UK
| | - Chris Brew-Graves
- Division of Medicine, University College London, Charles Bell House, 43-45 Foley Street, Sheffield, W1W 7JN, UK
| | - Nicola Muirhead
- Division of Medicine, University College London, Charles Bell House, 43-45 Foley Street, Sheffield, W1W 7JN, UK
| | - Norman R Williams
- Division of Surgery & Interventional Science, University College London, London, UK
| | - Elena Pizzo
- Department of Applied Health Research, University College London, 1-19 Torrington Place, Glasgow, WC1E 7HB, UK
| | - Raj Persad
- North Bristol Hospitals Trust, Department of Urology, Southmead Hospital, Southmead Lane, Westbury-on-Trym, Bristol, BS10 5NB, UK
| | - Jon Aning
- North Bristol Hospitals Trust, Department of Urology, Southmead Hospital, Southmead Lane, Westbury-on-Trym, Bristol, BS10 5NB, UK
| | - Lyndsey Johnson
- North Bristol Hospitals Trust, Department of Urology, Southmead Hospital, Southmead Lane, Westbury-on-Trym, Bristol, BS10 5NB, UK
| | - Jon Oxley
- North Bristol Hospitals Trust, Department of Histopathology, Southmead Hospital, Southmead Lane, Westbury-on-Trym, BS10 5NB, Bristol, UK
| | - Neil Oakley
- Sheffield Teaching Hospitals NHS Trust, Department of Urology, Royal Hallamshire Hospital, Glossop Road, S10 2JF, UK
| | - Susan Morgan
- Sheffield Teaching Hospitals NHS Trust, Department of Histopathology, Royal Hallamshire Hospital, Glossop Road, S10 2JF, UK
| | - Fawzia Tahir
- Sheffield Teaching Hospitals NHS Trust, Department of Histopathology, Royal Hallamshire Hospital, Glossop Road, S10 2JF, UK
| | - Imran Ahmad
- Glasgow & Clyde NHS Trust, Department of Urology, Queen Elizabeth Hospital, 1345 Govan Road, Glasgow, UK
| | - Lorenzo Dutto
- Glasgow & Clyde NHS Trust, Department of Urology, Queen Elizabeth Hospital, 1345 Govan Road, Glasgow, UK
| | - Jonathan M Salmond
- Glasgow & Clude NHS Trust, Department of Histopathology, Queen Elizabeth Hospital, 1345 Govan Road, Glasgow, UK
| | - Anand Kelkar
- University College Hospital London, Department of Urology, Westmoreland Street Hospital, 6-18 Westmoreland Street, W1G 8PH, London, UK
- Barking Havering & Redbridge University Hospitals Trust, Rom Valley Way, Romford, RM7 0AG, UK
| | - John Kelly
- Division of Surgery & Interventional Science, University College London, London, UK
- University College Hospital London, Department of Urology, Westmoreland Street Hospital, 6-18 Westmoreland Street, W1G 8PH, London, UK
| | - Greg Shaw
- Division of Surgery & Interventional Science, University College London, London, UK
- University College Hospital London, Department of Urology, Westmoreland Street Hospital, 6-18 Westmoreland Street, W1G 8PH, London, UK
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14
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Concordance between Preoperative mpMRI and Pathological Stage and Its Influence on Nerve-Sparing Surgery in Patients with High-Risk Prostate Cancer. Curr Oncol 2022; 29:2385-2394. [PMID: 35448167 PMCID: PMC9029136 DOI: 10.3390/curroncol29040193] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2022] [Revised: 03/22/2022] [Accepted: 03/25/2022] [Indexed: 11/26/2022] Open
Abstract
Background: We aimed to determine the concordance between the radiologic stage (rT), using multiparametric magnetic resonance imaging (mpMRI), and pathologic stage (pT) in patients with high-risk prostate cancer and its influence on nerve-sparing surgery compared to the use of the intraoperative frozen section technique (IFST). Methods: The concordance between rT and pT and the rates of nerve-sparing surgery and positive surgical margin were assessed for patients with high-risk prostate cancer who underwent radical prostatectomy. Results: The concordance between the rT and pT stages was shown in 66.4% (n = 77) of patients with clinical high-risk prostate cancer. The detection of patients with extraprostatic disease (≥pT3) by preoperative mpMRI showed a sensitivity, negative predictive value and accuracy of 65.1%, 51.7% and 67.5%. In addition to the suspicion of extraprostatic disease in mpMRI (≥rT3), 84.5% (n = 56) of patients with ≥rT3 underwent primary nerve-sparing surgery with IFST, resulting in 94.7% (n = 54) of men with at least unilateral nerve-sparing surgery after secondary resection with a positive surgical margin rate related to an IFST of 1.8% (n = 1). Conclusion: Patients with rT3 should not be immediately excluded from nerve-sparing surgery, as by using IFST some of these patients can safely undergo nerve-sparing surgery.
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Urethral Sphincter Length but Not Prostatic Apex Shape in Preoperative MRI Is Associated with Mid-Term Continence Rates after Radical Prostatectomy. Diagnostics (Basel) 2022; 12:diagnostics12030701. [PMID: 35328254 PMCID: PMC8947169 DOI: 10.3390/diagnostics12030701] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2022] [Revised: 03/01/2022] [Accepted: 03/10/2022] [Indexed: 11/23/2022] Open
Abstract
Background: To test the impact of urethral sphincter length (USL) and anatomic variants of prostatic apex (Lee-type classification) in preoperative multiparametric magnet resonance imaging (mpMRI) on mid-term continence in prostate cancer patients treated with radical prostatectomy (RP). Methods: We relied on an institutional tertiary-care database to identify patients who underwent RP between 03/2018 and 12/2019 with preoperative mpMRI and data available on mid-term (>6 months post-surgery) urinary continence, defined as usage 0/1 (-safety) pad/24 h. Univariable and multivariable logistic regression models were fitted to test for predictor status of USL and prostatic apex variants, defined in mpMRI measurements. Results: Of 68 eligible patients, rate of mid-term urinary continence was 81% (n = 55). Median coronal (15.1 vs. 12.5 mm) and sagittal (15.4 vs. 11.1 mm) USL were longer in patients reporting urinary continence in mid-term follow-up (both p < 0.01). No difference was recorded for prostatic apex variants distribution (Lee-type) between continent vs. incontinent patients (p = 0.4). In separate multivariable logistic regression models, coronal (odds ratio (OR): 1.35) and sagittal (OR: 1.67) USL, but not Lee-type, were independent predictors for mid-term continence. Conclusion: USL, but not apex anatomy, in preoperative mpMRI was associated with higher rates of urinary continence at mid-term follow-up.
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Hoeh B, Preisser F, Wenzel M, Humke C, Wittler C, Hohenhorst JL, Volckmann-Wilde M, Köllermann J, Steuber T, Graefen M, Tilki D, Karakiewicz PI, Becker A, Kluth LA, Chun FKH, Mandel P. Correlation of Urine Loss after Catheter Removal and Early Continence in Men Undergoing Radical Prostatectomy. Curr Oncol 2021; 28:4738-4747. [PMID: 34898569 PMCID: PMC8628712 DOI: 10.3390/curroncol28060399] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2021] [Revised: 11/07/2021] [Accepted: 11/13/2021] [Indexed: 12/09/2022] Open
Abstract
BACKGROUND To determine the correlation between urine loss in PAD-test after catheter removal, and early urinary continence (UC) in RP treated patients. METHODS Urine loss was measured by using a standardized, validated PAD-test within 24 h after removal of the transurethral catheter, and was grouped as a loss of <1, 1-10, 11-50, and >50 g of urine, respectively. Early UC (median: 3 months) was defined as the usage of no or one safety-pad. Uni- and multivariable logistic regression models tested the correlation between PAD-test results and early UC. Covariates consisted of age, BMI, nerve-sparing approach, prostate volume, and extraprostatic extension of tumor. RESULTS From 01/2018 to 03/2021, 100 patients undergoing RP with data available for a PAD-test and early UC were retrospectively identified. Ultimately, 24%, 47%, 15%, and 14% of patients had a loss of urine <1 g, 1-10 g, 11-50 g, and >50 g in PAD-test, respectively. Additionally, 59% of patients reported to be continent. In multivariable logistic regression models, urine loss in PAD-test predicted early UC (OR: 0.21 vs. 0.09 vs. 0.03; for urine loss 1-10 g vs. 11-50 g vs. >50 g, Ref: <1 g; all p < 0.05). CONCLUSIONS Urine loss after catheter removal strongly correlated with early continence as well as a severity in urinary incontinence.
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Affiliation(s)
- Benedikt Hoeh
- Department of Urology, University Hospital Frankfurt, Goethe University Frankfurt am Main, 60323 Frankfurt am Main, Germany; (B.H.); (M.W.); (C.H.); (C.W.); (M.V.-W.); (A.B.); (L.A.K.); (F.K.H.C.); (P.M.)
- Cancer Prognostics and Health Outcomes Unit, Division of Urology, University of Montréal Health Center, Montréal, QC H3T 1C5, Canada; (J.L.H.); (P.I.K.)
| | - Felix Preisser
- Department of Urology, University Hospital Frankfurt, Goethe University Frankfurt am Main, 60323 Frankfurt am Main, Germany; (B.H.); (M.W.); (C.H.); (C.W.); (M.V.-W.); (A.B.); (L.A.K.); (F.K.H.C.); (P.M.)
- Correspondence: ; Tel.: +49-(0)69-6301-83147; Fax: +49-(0)69-6301-83140
| | - Mike Wenzel
- Department of Urology, University Hospital Frankfurt, Goethe University Frankfurt am Main, 60323 Frankfurt am Main, Germany; (B.H.); (M.W.); (C.H.); (C.W.); (M.V.-W.); (A.B.); (L.A.K.); (F.K.H.C.); (P.M.)
| | - Clara Humke
- Department of Urology, University Hospital Frankfurt, Goethe University Frankfurt am Main, 60323 Frankfurt am Main, Germany; (B.H.); (M.W.); (C.H.); (C.W.); (M.V.-W.); (A.B.); (L.A.K.); (F.K.H.C.); (P.M.)
| | - Clarissa Wittler
- Department of Urology, University Hospital Frankfurt, Goethe University Frankfurt am Main, 60323 Frankfurt am Main, Germany; (B.H.); (M.W.); (C.H.); (C.W.); (M.V.-W.); (A.B.); (L.A.K.); (F.K.H.C.); (P.M.)
| | - Jan L. Hohenhorst
- Cancer Prognostics and Health Outcomes Unit, Division of Urology, University of Montréal Health Center, Montréal, QC H3T 1C5, Canada; (J.L.H.); (P.I.K.)
- Martini-Klinik Prostate Cancer Center, University Hospital Hamburg-Eppendorf, 20246 Hamburg, Germany; (T.S.); (M.G.); (D.T.)
| | - Maja Volckmann-Wilde
- Department of Urology, University Hospital Frankfurt, Goethe University Frankfurt am Main, 60323 Frankfurt am Main, Germany; (B.H.); (M.W.); (C.H.); (C.W.); (M.V.-W.); (A.B.); (L.A.K.); (F.K.H.C.); (P.M.)
| | - Jens Köllermann
- Dr. Senckenberg Institute of Pathology, University Hospital Frankfurt, 60590 Frankfurt am Main, Germany;
| | - Thomas Steuber
- Martini-Klinik Prostate Cancer Center, University Hospital Hamburg-Eppendorf, 20246 Hamburg, Germany; (T.S.); (M.G.); (D.T.)
| | - Markus Graefen
- Martini-Klinik Prostate Cancer Center, University Hospital Hamburg-Eppendorf, 20246 Hamburg, Germany; (T.S.); (M.G.); (D.T.)
| | - Derya Tilki
- Martini-Klinik Prostate Cancer Center, University Hospital Hamburg-Eppendorf, 20246 Hamburg, Germany; (T.S.); (M.G.); (D.T.)
- Department of Urology, University Hospital Hamburg-Eppendorf, 20246 Hamburg, Germany
| | - Pierre I. Karakiewicz
- Cancer Prognostics and Health Outcomes Unit, Division of Urology, University of Montréal Health Center, Montréal, QC H3T 1C5, Canada; (J.L.H.); (P.I.K.)
| | - Andreas Becker
- Department of Urology, University Hospital Frankfurt, Goethe University Frankfurt am Main, 60323 Frankfurt am Main, Germany; (B.H.); (M.W.); (C.H.); (C.W.); (M.V.-W.); (A.B.); (L.A.K.); (F.K.H.C.); (P.M.)
| | - Luis A. Kluth
- Department of Urology, University Hospital Frankfurt, Goethe University Frankfurt am Main, 60323 Frankfurt am Main, Germany; (B.H.); (M.W.); (C.H.); (C.W.); (M.V.-W.); (A.B.); (L.A.K.); (F.K.H.C.); (P.M.)
| | - Felix K. H. Chun
- Department of Urology, University Hospital Frankfurt, Goethe University Frankfurt am Main, 60323 Frankfurt am Main, Germany; (B.H.); (M.W.); (C.H.); (C.W.); (M.V.-W.); (A.B.); (L.A.K.); (F.K.H.C.); (P.M.)
| | - Philipp Mandel
- Department of Urology, University Hospital Frankfurt, Goethe University Frankfurt am Main, 60323 Frankfurt am Main, Germany; (B.H.); (M.W.); (C.H.); (C.W.); (M.V.-W.); (A.B.); (L.A.K.); (F.K.H.C.); (P.M.)
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17
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Ryu JH, Kim YB, Jung TY, Ko WJ, Kim SI, Kwon D, Kim DY, Oh TH, Yoo TK. Practice Patterns of Korean Urologists Regarding Positive Surgical Margins after Radical Prostatectomy: a Survey and Narrative Review. J Korean Med Sci 2021; 36:e256. [PMID: 34697927 PMCID: PMC8546307 DOI: 10.3346/jkms.2021.36.e256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Accepted: 08/23/2021] [Indexed: 11/20/2022] Open
Abstract
BACKGROUND There is no clear consensus on the optimal treatment with curative intent for patients with positive surgical margins (PSMs) following radical prostatectomy (RP). The aim of this study was to investigate the perceptions and treatment patterns of Korean urologists regarding the resection margin after RP. METHODS A preliminary questionnaire was prepared by analyzing various studies on resection margins after RP. Eight experienced urologists finalized the 10-item questionnaire. In July 2019, the final questionnaire was delivered via e-mail to 105 urologists in Korea who specialize in urinary cancers. RESULTS We received replies from 91 of the 105 urologists (86.7%) in our sample population. Among them, 41 respondents (45.1%) had performed more than 300 RPs and 22 (24.2%) had completed 500 or more RPs. In the question about whether they usually performed an additional biopsy beyond the main specimen, to get information about surgical margin invasion during surgery, the main opinion was that if no residual cancer was suspected, it was not performed (74.7%). For PSMs, the Gleason score of the positive site (49.5%) was judged to be a more important prognostic factor than the margin location (18.7%), multifocality (14.3%), or margin length (17.6%). In cases with PSMs after surgery, the prevailing opinion on follow-up was to measure and monitor prostate-specific antigen (PSA) levels rather than to begin immediate treatment (68.1%). Many respondents said that they considered postoperative radiologic examinations when PSA was elevated (72.2%), rather than regularly (24.4%). When patients had PSMs without extracapsular extension (pT2R1) or a negative surgical margin with extracapsular extension (pT3aR0), the response 'does not make a difference in treatment policy' prevailed at 65.9%. Even in patients at high risk of PSMs on preoperative radiologic screening, 84.6% of the respondents said that they did not perform neoadjuvant androgen deprivation therapy. Most respondents (75.8%) indicated that they avoided nerve-sparing RP in cases with a high risk of PSMs, but 25.7% said that they had tried nerve-sparing surgery. Additional analyses showed that urologists who had performed 300 or more prostatectomies tended to attempt more nerve-sparing procedures in patients with a high risk of PSMs than less experienced surgeons (36.6% vs. 14.0%; P = 0.012). CONCLUSION The most common response was to monitor PSA levels without recommending any additional treatment when PSMs were found after RP. Through this questionnaire, we found that the perceptions and treatment patterns of Korean urologists differed considerably according to RP resection margin status. Refined research and standard practice guidelines are needed.
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Affiliation(s)
- Jae Hyun Ryu
- Department of Urology, Veterans Health Service Medical Center, Seoul, Korea
| | - Yun Beom Kim
- Department of Urology, Veterans Health Service Medical Center, Seoul, Korea
| | - Tae Young Jung
- Department of Urology, Veterans Health Service Medical Center, Seoul, Korea
| | - Woo Jin Ko
- Department of Urology, National Health Insurance Service Ilsan Hospital, Goyang, Korea
| | - Sun Il Kim
- Department of Urology, Ajou University School of Medicine, Suwon, Korea
| | - Dongdeuk Kwon
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Duk Yoon Kim
- Department of Urology, Catholic University of Daegu School of Medicine, Daegu, Korea
| | - Tae Hee Oh
- Department of Urology, Samsung Changwon Hospital, Sungkyunkwan University School of Medicine, Changwon, Korea
| | - Tag Keun Yoo
- Department of Urology, Nowon Eulji Medical Center, Eulji University School of Medicine, Seoul, Korea.
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18
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Feasibility and outcome of radical prostatectomy following inductive neoadjuvant therapy in patients with suspicion of rectal infiltration. Urol Oncol 2021; 40:59.e7-59.e12. [PMID: 34456124 DOI: 10.1016/j.urolonc.2021.07.028] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Revised: 07/05/2021] [Accepted: 07/29/2021] [Indexed: 11/24/2022]
Abstract
OBJECTIVE To determine the feasibility and outcome of radical prostatectomy (RP) following neoadjuvant therapy (NAT) in patients with initial inoperable, rectum-infiltrating cT4 prostate cancer (PCa). METHODS From 01/2018 to 12/2020, 26 patients with clinical (DRE) or radiographical (mpMRI) suspicion of rectum infiltrating PCa at diagnosis and NAT prior to RP were retrospectively identified from our prospective institutional database. Two patients were still inoperable after NAT. Downsizing was administered for at least 20 weeks and RP was performed after excluding ongoing rectal infiltration. RESULTS At diagnosis, median PSA was 42.5 ng/ml (IQR: 23.0-66.1). Inductive NAT consisted of androgen deprivation therapy (ADT) in combination with chemotherapy (n = 9) or without chemotherapy (n = 14). Median preoperative PSA was 0.93 ng/ml (IQR: 0.24-0.40). Median time from NAT to RP was 6 months (IQR: 5-7). Two patients were still inoperable after NAT. Of 24 patients undergoing RP, abortion of surgery due to inoperability was observed in 2 patients (8.4%), demonstrating a total failure rate of NAT in 4 out of 26 patients (15.4%). One patient suffered a rectal injury with consecutive colostomy (4.2%). No Clavien-Dindo complication Grade IV or V were observed. Urinary continence was achieved in 16 patients (84.2%). Sufficient erection for sexual intercourse was present in 2 patients (10.5%). All patients received adjuvant ADT with or without radiation therapy. Median PSA at 13 months was 0.08 ng/ml (IQR: 0.01-0.74). CONCLUSION RP of initially rectum infiltrating PCa is feasible and safe after inductive NAT, however complications rates tend to be higher compared to standard RP.
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19
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Mandel P, Hoeh B, Preisser F, Wenzel M, Humke C, Welte MN, Jerrentrup I, Köllermann J, Wild P, Tilki D, Haese A, Becker A, Roos FC, Chun FKH, Kluth LA. Influence of Tumor Burden on Serum Prostate-Specific Antigen in Prostate Cancer Patients Undergoing Radical Prostatectomy. Front Oncol 2021; 11:656444. [PMID: 34395240 PMCID: PMC8358926 DOI: 10.3389/fonc.2021.656444] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Accepted: 07/12/2021] [Indexed: 11/30/2022] Open
Abstract
Objective We aimed to assess the correlation between serum prostate-specific antigen (PSA) and tumor burden in prostate cancer (PCa) patients undergoing radical prostatectomy (RP), because estimation of tumor burden is of high value, e.g., in men undergoing RP or with biochemical recurrence after RP. Patients and Methods From January 2019 to June 2020, 179 consecutive PCa patients after RP with information on tumor and prostate weight were retrospectively identified from our prospective institutional RP database. Patients with preoperative systemic therapy (n=19), metastases (cM1, n=5), and locally progressed PCa (pT4 or pN1, n=50) were excluded from analyses. Histopathological features, including total weight of the prostate and specific tumor weight, were recorded by specialized uro-pathologists. Linear regression models were performed to evaluate the effect of PSA on tumor burden, measured by tumor weight after adjustment for patient and tumor characteristics. Results Overall, median preoperative PSA was 7.0 ng/ml (interquartile range [IQR]: 5.41–10) and median age at surgery was 66 years (IQR: 61-71). Median prostate weight was 34 g (IQR: 26–46) and median tumor weight was 3.7 g (IQR: 1.8–7.1), respectively. In multivariable linear regression analysis after adjustment for patients and tumor characteristics, a significant, positive correlation could be detected between preoperative PSA and tumor weight (coefficient [coef.]: 0.37, CI: 0.15–0.6, p=0.001), indicating a robust increase in PSA of almost 0.4 ng/ml per 1g tumor weight. Conclusion Preoperative PSA was significantly correlated with tumor weight in PCa patients undergoing RP, with an increase in PSA of almost 0.4 ng/ml per 1 g tumor weight. This might help to estimate both tumor burden before undergoing RP and in case of biochemical recurrence.
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Affiliation(s)
- Philipp Mandel
- Department of Urology, University Hospital Frankfurt, Frankfurt am Main, Germany
| | - Benedikt Hoeh
- Department of Urology, University Hospital Frankfurt, Frankfurt am Main, Germany
| | - Felix Preisser
- Department of Urology, University Hospital Frankfurt, Frankfurt am Main, Germany
| | - Mike Wenzel
- Department of Urology, University Hospital Frankfurt, Frankfurt am Main, Germany.,Cancer Prognostics and Health Outcomes Unit, Division of Urology, University of Montréal Health Center, Montréal, QC, Canada
| | - Clara Humke
- Department of Urology, University Hospital Frankfurt, Frankfurt am Main, Germany
| | - Maria-Noemi Welte
- Department of Urology, University Hospital Frankfurt, Frankfurt am Main, Germany
| | - Inga Jerrentrup
- Department of Urology, University Hospital Frankfurt, Frankfurt am Main, Germany
| | - Jens Köllermann
- Dr. Senckenberg Institute of Pathology, University Hospital Frankfurt, Frankfurt am Main, Germany
| | - Peter Wild
- Dr. Senckenberg Institute of Pathology, University Hospital Frankfurt, Frankfurt am Main, Germany
| | - Derya Tilki
- Martini-Klinik Prostate Cancer Center, University Hospital Hamburg-Eppendorf, Hamburg, Germany
| | - Alexander Haese
- Martini-Klinik Prostate Cancer Center, University Hospital Hamburg-Eppendorf, Hamburg, Germany
| | - Andreas Becker
- Department of Urology, University Hospital Frankfurt, Frankfurt am Main, Germany
| | - Frederik C Roos
- Department of Urology, University Hospital Frankfurt, Frankfurt am Main, Germany
| | - Felix K H Chun
- Department of Urology, University Hospital Frankfurt, Frankfurt am Main, Germany
| | - Luis A Kluth
- Department of Urology, University Hospital Frankfurt, Frankfurt am Main, Germany
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20
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Bianchi L, Chessa F, Angiolini A, Cercenelli L, Lodi S, Bortolani B, Molinaroli E, Casablanca C, Droghetti M, Gaudiano C, Mottaran A, Porreca A, Golfieri R, Romagnoli D, Giunchi F, Fiorentino M, Piazza P, Puliatti S, Diciotti S, Marcelli E, Mottrie A, Schiavina R. The Use of Augmented Reality to Guide the Intraoperative Frozen Section During Robot-assisted Radical Prostatectomy. Eur Urol 2021; 80:480-488. [PMID: 34332759 DOI: 10.1016/j.eururo.2021.06.020] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Accepted: 06/24/2021] [Indexed: 10/20/2022]
Abstract
BACKGROUND Multiparametric magnetic resonance imaging (mpMRI) can guide the surgical plan during robot-assisted radical prostatectomy (RARP), and intraoperative frozen section (IFS) can facilitate real-time surgical margin assessment. OBJECTIVE To assess a novel technique of IFS targeted to the index lesion by using augmented reality three-dimensional (AR-3D) models in patients scheduled for nerve-sparing RARP (NS-RARP). DESIGN, SETTING, AND PARTICIPANTS Between March 2019 and July 2019, 20 consecutive prostate cancer patients underwent NS-RARP with IFS directed to the index lesion with the help of AR-3D models (study group). Control group consists of 20 patients matched with 1:1 propensity score for age, clinical stage, Prostate Imaging Reporting and Data System score v2, International Society of Urological Pathology grade, prostate volume, NS approach, and prostate-specific antigen in which RARP was performed by cognitive assessment of mpMRI. SURGICAL PROCEDURE In the study group, an AR-3D model was superimposed to the surgical field to guide the surgical dissection. Tissue sampling for IFS was taken in the area in which the index lesion was projected by AR-3D guidance. MEASUREMENTS Chi-square test, Student t test, and Mann-Whitney U test were used to compare, respectively, proportions, means, and medians between the two groups. RESULTS AND LIMITATIONS Patients in the AR-3D group had comparable preoperative characteristics and those undergoing the NS approach were referred to as the control group (all p ≥ 0.06). Overall, positive surgical margin (PSM) rates were comparable between the two groups; PSMs at the level of the index lesion were significantly lower in patients referred to AR-3D guided IFS to the index lesion (5%) than those in the control group (20%; p = 0.01). CONCLUSIONS The novel technique of AR-3D guidance for IFS analysis may allow for reducing PSMs at the level of the index lesion. PATIENT SUMMARY Augmented reality three-dimensional guidance for intraoperative frozen section analysis during robot-assisted radical prostatectomy facilitates the real-time assessment of surgical margins and may reduce positive surgical margins at the index lesion.
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Affiliation(s)
- Lorenzo Bianchi
- Division of Urology, IRCCS Azienda Ospedaliero-Universitaria di Bologna; Università degli Studi di Bologna.
| | - Francesco Chessa
- Division of Urology, IRCCS Azienda Ospedaliero-Universitaria di Bologna; Università degli Studi di Bologna
| | - Andrea Angiolini
- Division of Urology, IRCCS Azienda Ospedaliero-Universitaria di Bologna; Università degli Studi di Bologna; Department of Experimental, Diagnostic and Specialty Medicine (DIMES), Laboratory of Bioengineering, University of Bologna, Bologna, Italy
| | - Laura Cercenelli
- Department of Experimental, Diagnostic and Specialty Medicine (DIMES), Laboratory of Bioengineering, University of Bologna, Bologna, Italy; Department of Biomedical and Neuromotor Sciences (DIBINEM), University of Bologna, Bologna, Italy
| | - Simone Lodi
- Department of Electrical, Electronic and Information Engineering "Guglielmo Marconi", University of Bologna, Bologna, Italy
| | - Barbara Bortolani
- Department of Experimental, Diagnostic and Specialty Medicine (DIMES), Laboratory of Bioengineering, University of Bologna, Bologna, Italy
| | - Enrico Molinaroli
- Division of Urology, IRCCS Azienda Ospedaliero-Universitaria di Bologna
| | - Carlo Casablanca
- Division of Urology, IRCCS Azienda Ospedaliero-Universitaria di Bologna
| | - Matteo Droghetti
- Division of Urology, IRCCS Azienda Ospedaliero-Universitaria di Bologna
| | - Caterina Gaudiano
- Department of Radiology, IRCCS Azienda Ospedaliero-Universitaria di Bologna
| | - Angelo Mottaran
- Division of Urology, IRCCS Azienda Ospedaliero-Universitaria di Bologna
| | - Angelo Porreca
- Department of Urology, Veneto Institute of Oncology IOV - IRCCS, 35128 Padua, Italy
| | - Rita Golfieri
- Università degli Studi di Bologna; Department of Radiology, IRCCS Azienda Ospedaliero-Universitaria di Bologna
| | | | - Francesca Giunchi
- Pathology Department, IRCCS Azienda Ospedaliero-Universitaria di Bologna
| | | | - Pietro Piazza
- Division of Urology, IRCCS Azienda Ospedaliero-Universitaria di Bologna; Department of Urology, OLV Hospital, Aalst, Belgium; ORSI Academy, Melle, Belgium
| | - Stefano Puliatti
- Department of Urology, OLV Hospital, Aalst, Belgium; ORSI Academy, Melle, Belgium; Department of Urology, University of Modena and Reggio Emilia, Modena, Italy
| | - Stefano Diciotti
- Department of Electrical, Electronic and Information Engineering "Guglielmo Marconi", University of Bologna, Bologna, Italy
| | - Emanuela Marcelli
- Department of Experimental, Diagnostic and Specialty Medicine (DIMES), Laboratory of Bioengineering, University of Bologna, Bologna, Italy
| | - Alexandre Mottrie
- Department of Urology, OLV Hospital, Aalst, Belgium; ORSI Academy, Melle, Belgium
| | - Riccardo Schiavina
- Division of Urology, IRCCS Azienda Ospedaliero-Universitaria di Bologna; Università degli Studi di Bologna
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21
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Miyamoto H. Intraoperative pathology consultation during urological surgery: Impact on final margin status and pitfalls of frozen section diagnosis. Pathol Int 2021; 71:567-580. [PMID: 34154033 DOI: 10.1111/pin.13132] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Accepted: 05/23/2021] [Indexed: 12/14/2022]
Abstract
Despite recent improvements in diagnostic and surgical techniques in urological oncology, positive resection margin remains a significant concern for surgeons. Meanwhile, intraoperative pathology consultation with frozen section assessment (FSA), particularly for histological diagnosis of the lesions incidentally found or enlarged or sentinel lymph nodes, generally provides critical information which enables immediate decision making for optimal patient care. The intraoperative evaluation of surgical margins is also often requested, although there are some differences in its application between institutions and surgeons. Importantly, it remains to be determined whether intraoperative FSA indeed contributes to reducing the risk of final positive margins and thereby improving long-term patient outcomes. This review summarizes available data indicating the potential impact of FSA at the surgical margins during urological surgeries, including radical or partial cystectomy, partial nephrectomy, radical prostatectomy, penectomy, and orchiectomy. The accuracy and pitfalls of the intraoperative consultation/FSA diagnosis are also discussed.
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Affiliation(s)
- Hiroshi Miyamoto
- Departments of Pathology & Laboratory Medicine and Urology, University of Rochester Medical Center, Rochester, New York, USA
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22
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Effect of prostatic apex shape (Lee types) and urethral sphincter length in preoperative MRI on very early continence rates after radical prostatectomy. Int Urol Nephrol 2021; 53:1297-1303. [PMID: 33606155 PMCID: PMC8192356 DOI: 10.1007/s11255-021-02809-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2020] [Accepted: 02/08/2021] [Indexed: 11/04/2022]
Abstract
Purpose To test the effect of anatomic variants of the prostatic apex overlapping the membranous urethra (Lee type classification), as well as median urethral sphincter length (USL) in preoperative multiparametric magnetic resonance imaging (mpMRI) on the very early continence in open (ORP) and robotic-assisted radical prostatectomy (RARP) patients. Methods In 128 consecutive patients (01/2018–12/2019), USL and the prostatic apex classified according to Lee types A–D in mpMRI prior to ORP or RARP were retrospectively analyzed. Uni- and multivariable logistic regression models were used to identify anatomic characteristics for very early continence rates, defined as urine loss of ≤ 1 g in the PAD-test. Results Of 128 patients with mpMRI prior to surgery, 76 (59.4%) underwent RARP vs. 52 (40.6%) ORP. In total, median USL was 15, 15 and 10 mm in the sagittal, coronal and axial dimensions. After stratification according to very early continence in the PAD-test (≤ 1 g vs. > 1 g), continent patients had significantly more frequently Lee type D (71.4 vs. 54.4%) and C (14.3 vs. 7.6%, p = 0.03). In multivariable logistic regression models, the sagittal median USL (odds ratio [OR] 1.03) and Lee type C (OR: 7.0) and D (OR: 4.9) were independent predictors for achieving very early continence in the PAD-test. Conclusion Patients’ individual anatomical characteristics in mpMRI prior to radical prostatectomy can be used to predict very early continence. Lee type C and D suggest being the most favorable anatomical characteristics. Moreover, longer sagittal median USL in mpMRI seems to improve very early continence rates.
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23
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Wenzel M, Preisser F, Theissen LH, Humke C, Welte MN, Wittler C, Kluth LA, Karakiewicz PI, Chun FKH, Mandel P, Becker A. The Effect of Adverse Patient Characteristics on Perioperative Outcomes in Open and Robot-Assisted Radical Prostatectomy. Front Surg 2020; 7:584897. [PMID: 33240927 PMCID: PMC7683519 DOI: 10.3389/fsurg.2020.584897] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2020] [Accepted: 10/16/2020] [Indexed: 02/03/2023] Open
Abstract
Objective: To analyze the effect of adverse preoperative patient and tumor characteristics on perioperative outcomes of open (ORP) and robot-assisted radical prostatectomy (RARP). Material and Methods: We retrospectively analyzed 656 patients who underwent ORP or RARP according to intraoperative blood loss (BL), operation time (OR time), neurovascular bundle preservation (NVBP) and positive surgical margins (PSM). Univariable and multivariable logistic regression models were used to identify risk factors for impaired perioperative outcomes. Results: Of all included 619 patients, median age was 66 years. BMI (<25 vs. 25-30 vs. ≥30) had no influence on blood loss. Prostate size >40cc recorded increased BL compared to prostate size ≤ 40cc in patients undergoing ORP (800 vs. 1200 ml, p < 0.001), but not in patients undergoing RARP (300 vs. 300 ml, p = 0.2). Similarly, longer OR time was observed for ORP in prostates >40cc, but not for RARP. Overweight (BMI 25-30) and obese ORP patients (BMI ≥30) showed longer OR time compared to normal weight (BMI <25). Only obese patients, who underwent RARP showed longer OR time compared to normal weight. NVBP was less frequent in obese patients, who underwent ORP, relative to normal weight (25.8% vs. 14.0%, p < 0.01). BMI did not affect NVPB at RARP. No differences in PSM were recorded according to prostate volume or BMI in ORP or RARP. In multivariable analyses, patient characteristics such as prostate volume and BMI was an independent predictor for prolonged OR time. Moreover, tumor characteristics (stage and grade) predicted worse perioperative outcome. Conclusion: Patients with larger prostates and obese patients undergoing ORP are at risk of higher BL, OR time or non-nervesparing procedure. Conversely, in patients undergoing RARP only obesity is associated with increased OR time. Patients with larger prostates or increased BMI might benefit most from RARP compared to ORP.
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Affiliation(s)
- Mike Wenzel
- Department of Urology, University Hospital Frankfurt, Frankfurt, Germany.,Cancer Prognostics and Health Outcomes Unit, Division of Urology, University of Montreal Health Center, Montreal, QC, Canada
| | - Felix Preisser
- Department of Urology, University Hospital Frankfurt, Frankfurt, Germany
| | - Lena H Theissen
- Department of Urology, University Hospital Frankfurt, Frankfurt, Germany
| | - Clara Humke
- Department of Urology, University Hospital Frankfurt, Frankfurt, Germany
| | - Maria N Welte
- Department of Urology, University Hospital Frankfurt, Frankfurt, Germany
| | - Clarissa Wittler
- Department of Urology, University Hospital Frankfurt, Frankfurt, Germany
| | - Luis A Kluth
- Department of Urology, University Hospital Frankfurt, Frankfurt, Germany
| | - Pierre I Karakiewicz
- Cancer Prognostics and Health Outcomes Unit, Division of Urology, University of Montreal Health Center, Montreal, QC, Canada
| | - Felix K H Chun
- Department of Urology, University Hospital Frankfurt, Frankfurt, Germany
| | - Philipp Mandel
- Department of Urology, University Hospital Frankfurt, Frankfurt, Germany
| | - Andreas Becker
- Department of Urology, University Hospital Frankfurt, Frankfurt, Germany
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24
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Engl T, Mandel P, Hoeh B, Preisser F, Wenzel M, Humke C, Welte M, Köllermann J, Wild P, Deuker M, Kluth LA, Roos FC, Chun FKH, Becker A. Impact of "Time-From-Biopsy-to-Prostatectomy" on Adverse Oncological Results in Patients With Intermediate and High-Risk Prostate Cancer. Front Surg 2020; 7:561853. [PMID: 33102515 PMCID: PMC7545071 DOI: 10.3389/fsurg.2020.561853] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Accepted: 08/21/2020] [Indexed: 01/12/2023] Open
Abstract
Objective: Many patients with localized prostate cancer (PCa) do not immediately undergo radical prostatectomy (RP) after biopsy confirmation. The aim of this study was to investigate the influence of “time-from-biopsy-to- prostatectomy” on adverse pathological outcomes. Materials and Methods: Between January 2014 and December 2019, 437 patients with intermediate- and high risk PCa who underwent RP were retrospectively identified within our prospective institutional database. For the aim of our study, we focused on patients with intermediate- (n = 285) and high-risk (n = 151) PCa using D'Amico risk stratification. Endpoints were adverse pathological outcomes and proportion of nerve-sparing procedures after RP stratified by “time-from-biopsy-to-prostatectomy”: ≤3 months vs. >3 and < 6 months. Medians and interquartile ranges (IQR) were reported for continuously coded variables. The chi-square test examined the statistical significance of the differences in proportions while the Kruskal-Wallis test was used to examine differences in medians. Multivariable (ordered) logistic regressions, analyzing the impact of time between diagnosis and prostatectomy, were separately run for all relevant outcome variables (ISUP specimen, margin status, pathological stage, pathological nodal status, LVI, perineural invasion, nerve-sparing). Results: We observed no difference between patients undergoing RP ≤3 months vs. >3 and <6 months after diagnosis for the following oncological endpoints: pT-stage, ISUP grading, probability of a positive surgical margin, probability of lymph node invasion (LNI), lymphovascular invasion (LVI), and perineural invasion (pn) in patients with intermediate- and high-risk PCa. Likewise, the rates of nerve sparing procedures were 84.3 vs. 87.4% (p = 0.778) and 61.0% vs. 78.8% (p = 0.211), for intermediate- and high-risk PCa patients undergoing surgery after ≤3 months vs. >3 and <6 months, respectively. In multivariable adjusted analyses, a time to surgery >3 months did not significantly worsen any of the outcome variables in patients with intermediate- or high-risk PCa (all p > 0.05). Conclusion: A “time-from-biopsy-to-prostatectomy” of >3 and <6 months is neither associated with adverse pathological outcomes nor poorer chances of nerve sparing RP in intermediate- and high-risk PCa patients.
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Affiliation(s)
- Tobias Engl
- Department of Urology, University Hospital Frankfurt, Frankfurt am Main, Germany.,Urogate Associates, Frankfurt am Main, Germany
| | - Philipp Mandel
- Department of Urology, University Hospital Frankfurt, Frankfurt am Main, Germany
| | - Benedikt Hoeh
- Department of Urology, University Hospital Frankfurt, Frankfurt am Main, Germany.,Urogate Associates, Frankfurt am Main, Germany
| | - Felix Preisser
- Department of Urology, University Hospital Frankfurt, Frankfurt am Main, Germany
| | - Mike Wenzel
- Department of Urology, University Hospital Frankfurt, Frankfurt am Main, Germany
| | - Clara Humke
- Department of Urology, University Hospital Frankfurt, Frankfurt am Main, Germany
| | - Maria Welte
- Department of Urology, University Hospital Frankfurt, Frankfurt am Main, Germany
| | - Jens Köllermann
- Department of Pathology, University Hospital Frankfurt, Frankfurt am Main, Germany
| | - Peter Wild
- Department of Pathology, University Hospital Frankfurt, Frankfurt am Main, Germany
| | - Marina Deuker
- Department of Urology, University Hospital Frankfurt, Frankfurt am Main, Germany
| | - Luis A Kluth
- Department of Urology, University Hospital Frankfurt, Frankfurt am Main, Germany
| | - Frederik C Roos
- Department of Urology, University Hospital Frankfurt, Frankfurt am Main, Germany
| | - Felix K H Chun
- Department of Urology, University Hospital Frankfurt, Frankfurt am Main, Germany
| | - Andreas Becker
- Department of Urology, University Hospital Frankfurt, Frankfurt am Main, Germany
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25
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van der Slot MA, den Bakker MA, Klaver S, Kliffen M, Busstra MB, Rietbergen JBW, Gan M, Hamoen KE, Budel LM, Goemaere NNT, Bangma CH, Helleman J, Roobol MJ, van Leenders GJLH. Intraoperative assessment and reporting of radical prostatectomy specimens to guide nerve-sparing surgery in prostate cancer patients (NeuroSAFE). Histopathology 2020; 77:539-547. [PMID: 32557744 PMCID: PMC7540505 DOI: 10.1111/his.14184] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Accepted: 06/11/2020] [Indexed: 12/16/2022]
Abstract
Aims Radical prostatectomy for prostate cancer is frequently complicated by urinary incontinence and erectile dysfunction. Nerve‐sparing surgery reduces the risk of postoperative complications and can be optimised by the use of intraoperative frozen sections of the adjacent neurovascular structure (NeuroSAFE). The aims of this study were to evaluate the pathological outcomes of the NeuroSAFE technique and to develop a comprehensive algorithm for intraoperative clinical decision‐making. Methods and results Between September 2018 and May 2019, 491 NeuroSAFE procedures were performed in 258 patients undergoing radical prostatectomy; 74 of 491 (15.1%) NeuroSAFE specimens had positive surgical margins. As compared with the corresponding paraffin sections, NeuroSAFE had a positive predictive value and negative predictive value of 85.1% and 95.4%, respectively. In 72.2% of secondary neurovascular bundle resections prompted by a NeuroSAFE positive surgical margin, no tumour was present. These cases more often had a positive surgical margin of ≤1 mm (48.7% versus 20.0%; P = 0.001) and only one positive slide (69.2% versus 33.3%; P = 0.008). None of the nine patients with Gleason pattern 3 at the surgical margin, a positive surgical margin length of ≤1 mm and one positive slide had tumour in the secondary resection. Conclusions This study provides a systematic reporting template for pathological intraoperative NeuroSAFE evaluation, supporting intraoperative clinical decision‐making and comparison between prostate cancer operation centres.
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Affiliation(s)
- Margaretha A van der Slot
- Anser Prostate Clinic, Maasstad Hospital, Rotterdam, The Netherlands.,Department of Pathology, Maasstad Hospital, Rotterdam, The Netherlands
| | - Michael A den Bakker
- Anser Prostate Clinic, Maasstad Hospital, Rotterdam, The Netherlands.,Department of Pathology, Maasstad Hospital, Rotterdam, The Netherlands
| | - Sjoerd Klaver
- Anser Prostate Clinic, Maasstad Hospital, Rotterdam, The Netherlands.,Department of Urology, Maasstad Hospital, Rotterdam, The Netherlands
| | - Mike Kliffen
- Anser Prostate Clinic, Maasstad Hospital, Rotterdam, The Netherlands.,Department of Pathology, Maasstad Hospital, Rotterdam, The Netherlands
| | - Martijn B Busstra
- Anser Prostate Clinic, Maasstad Hospital, Rotterdam, The Netherlands.,Department of Urology, Erasmus MC University Medical Centre, Rotterdam, The Netherlands
| | - John B W Rietbergen
- Anser Prostate Clinic, Maasstad Hospital, Rotterdam, The Netherlands.,Department of Urology, Franciscus Gasthuis & Vlietland, Rotterdam, The Netherlands
| | - Melanie Gan
- Anser Prostate Clinic, Maasstad Hospital, Rotterdam, The Netherlands.,Department of Urology, Maasstad Hospital, Rotterdam, The Netherlands
| | - Karen E Hamoen
- Anser Prostate Clinic, Maasstad Hospital, Rotterdam, The Netherlands.,Department of Pathology, Maasstad Hospital, Rotterdam, The Netherlands
| | - Leo M Budel
- Anser Prostate Clinic, Maasstad Hospital, Rotterdam, The Netherlands.,Department of Pathology, Maasstad Hospital, Rotterdam, The Netherlands
| | - Natascha N T Goemaere
- Anser Prostate Clinic, Maasstad Hospital, Rotterdam, The Netherlands.,Department of Pathology, Maasstad Hospital, Rotterdam, The Netherlands
| | - Chris H Bangma
- Anser Prostate Clinic, Maasstad Hospital, Rotterdam, The Netherlands.,Department of Urology, Erasmus MC University Medical Centre, Rotterdam, The Netherlands
| | - Jozien Helleman
- Department of Urology, Erasmus MC University Medical Centre, Rotterdam, The Netherlands
| | - Monique J Roobol
- Department of Urology, Erasmus MC University Medical Centre, Rotterdam, The Netherlands
| | - Geert J L H van Leenders
- Anser Prostate Clinic, Maasstad Hospital, Rotterdam, The Netherlands.,Department of Pathology, Erasmus MC University Medical Centre, Rotterdam, The Netherlands
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26
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Wenzel M, Humke C, Wicker S, Mani J, Engl T, Hintereder G, Vogl TJ, Wild P, Köllermann J, Rödel C, Asgharie S, Theissen L, Welte M, Kluth LA, Mandel P, Chun FKH, Preisser F, Becker A. [Movember health care initiative 2019: prostate cancer screening at the University Hospital Frankfurt]. Urologe A 2020; 59:1237-1245. [PMID: 32617622 PMCID: PMC7547026 DOI: 10.1007/s00120-020-01265-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Hintergrund Männer in Deutschland sterben früher als Frauen und nehmen weniger häufig Krebsvorsorgeuntersuchungen wahr. Fragestellung Ziel war die prospektive Evaluation einer „Movember-Gesundheitsinitiative“ am Universitätsklinikum Frankfurt (UKF) im November 2019. Methoden Im Rahmen der „Movember-Gesundheitsinitiative“ wurde allen männlichen Mitarbeitern des UKF ab dem 45. Lebensjahr und bei erstgradiger familiärer Vorbelastung eines Prostatakarzinoms ab dem 40. Lebensjahr im November 2019 gemäß S3-Leitlinien der Deutschen Gesellschaft für Urologie (DGU) eine Prostatakarzinom-Vorsorgeuntersuchung angeboten. Ergebnisse Insgesamt nahmen 14,4 % der Mitarbeiter teil. Eine familiäre Vorbelastung gaben insgesamt 14,0 % Teilnehmer an. Das mediane Alter betrug 54 Jahre. Der mediane PSA(prostataspezifisches Antigen)-Wert lag bei 0,9 ng/ml, der mediane PSA-Quotient bei 30 %. Bei 5 % (n = 6) zeigte sich ein suspekter Tastbefund in der DRU (digital-rektale Untersuchung). Nach Altersstratifizierung (≤ 50 vs. > 50 Lebensjahre) zeigten sich signifikante Unterschiede im medianen PSA-Wert (0,7 ng/ml vs. 1,0 ng/ml, p < 0,01) und der bereits zuvor durchgeführten urologischen Vorsorge (12,1 vs. 42,0 %, p < 0,01). Vier Teilnehmer (3,3 %) zeigten erhöhte Gesamt-PSA-Werte. Bei 32,2 % der Teilnehmer zeigte sich mindestens ein kontrollbedürftiger Befund. Insgesamt wurden 6 Prostatabiopsien durchgeführt. Hierbei zeigte sich in einem Fall ein intermediate-risk Prostatakarzinom (Gleason 3 + 4, pT3a, pPn1, pNx, R0). Schlussfolgerungung Im Rahmen der UKF-Movember-Gesundheitsinitiative 2019 konnten durch ein Vorsorgeangebot 121 Männer für eine Prostatakrebs-Vorsorge inklusive PSA-Testung gewonnen werden. Auffällige/kontrollbedürftige Befunde zeigten sich bei 32,2 %. Bei einem Mitarbeiter wurde ein therapiebedürftiges Prostatakarzinom entdeckt und therapiert.
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Affiliation(s)
- M Wenzel
- Klinik für Urologie, Universitätsklinikum Frankfurt, Theodor-Stern-Kai 7, 60590, Frankfurt, Deutschland
| | - C Humke
- Klinik für Urologie, Universitätsklinikum Frankfurt, Theodor-Stern-Kai 7, 60590, Frankfurt, Deutschland
| | - S Wicker
- Betriebsärztlicher Dienst, Universitätsklinikum Frankfurt, Frankfurt, Deutschland
| | - J Mani
- Urogate Praxis, Frankfurt, Deutschland
| | - T Engl
- Urogate Praxis, Frankfurt, Deutschland
| | - G Hintereder
- Zentrallabor, Zentrum der Inneren Medizin, Universitätsklinikum Frankfurt, Frankfurt, Deutschland
| | - T J Vogl
- Zentrum für diagnostische und interventionelle Radiologie, Universitätsklinikum Frankfurt, Frankfurt, Deutschland
| | - P Wild
- Dr. Senkenbergisches Institut für Pathologie, Universitätsklinikum Frankfurt, Frankfurt, Deutschland
| | - J Köllermann
- Dr. Senkenbergisches Institut für Pathologie, Universitätsklinikum Frankfurt, Frankfurt, Deutschland
| | - C Rödel
- Klinik für Strahlentherapie und Onkologie, Universitätsklinikum Frankfurt, Frankfurt, Deutschland
| | - S Asgharie
- Klinik für Urologie, Universitätsklinikum Frankfurt, Theodor-Stern-Kai 7, 60590, Frankfurt, Deutschland
| | - L Theissen
- Klinik für Urologie, Universitätsklinikum Frankfurt, Theodor-Stern-Kai 7, 60590, Frankfurt, Deutschland
| | - M Welte
- Klinik für Urologie, Universitätsklinikum Frankfurt, Theodor-Stern-Kai 7, 60590, Frankfurt, Deutschland
| | - L A Kluth
- Klinik für Urologie, Universitätsklinikum Frankfurt, Theodor-Stern-Kai 7, 60590, Frankfurt, Deutschland
| | - P Mandel
- Klinik für Urologie, Universitätsklinikum Frankfurt, Theodor-Stern-Kai 7, 60590, Frankfurt, Deutschland
| | - F K H Chun
- Klinik für Urologie, Universitätsklinikum Frankfurt, Theodor-Stern-Kai 7, 60590, Frankfurt, Deutschland
| | - F Preisser
- Klinik für Urologie, Universitätsklinikum Frankfurt, Theodor-Stern-Kai 7, 60590, Frankfurt, Deutschland.
| | - A Becker
- Klinik für Urologie, Universitätsklinikum Frankfurt, Theodor-Stern-Kai 7, 60590, Frankfurt, Deutschland
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27
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Cahill LC, Wu Y, Yoshitake T, Ponchiardi C, Giacomelli MG, Wagner AA, Rosen S, Fujimoto JG. Nonlinear microscopy for detection of prostate cancer: analysis of sensitivity and specificity in radical prostatectomies. Mod Pathol 2020; 33:916-923. [PMID: 31745288 PMCID: PMC7195230 DOI: 10.1038/s41379-019-0408-4] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2019] [Revised: 10/17/2019] [Accepted: 10/18/2019] [Indexed: 01/26/2023]
Abstract
Intraoperative evaluation of specimens during radical prostatectomy using frozen sections can be time and labor intensive. Nonlinear microscopy (NLM) is a fluorescence microscopy technique that can rapidly generate images that closely resemble H&E histology in freshly excised tissue, without requiring freezing or microtome sectioning. Specimens are stained with nuclear and cytoplasmic/stromal fluorophores, and NLM evaluation can begin within 3 min of grossing. Fluorescence signals can be displayed using an H&E color scale, facilitating pathologist interpretation. This study evaluates the accuracy of prostate cancer detection in a blinded reading of NLM images compared with the gold standard of formalin-fixed, paraffin-embedded H&E histology. A total of 122 freshly excised prostate specimens were obtained from 40 patients undergoing radical prostatectomy. The prostates were grossed, dissected into specimens of ~10 × 10 mm with 1-4 mm thickness, stained for 2 min for nuclear and cytoplasmic/stromal contrast, and then rinsed with saline for 30 s. NLM images were acquired and multiple images were stitched together to generate large field of view, centimeter-scale digital images suitable for reading. Specimens were then processed for standard paraffin H&E. The study protocol consisted of training, pretesting, and blinded reading phases. After a washout period, pathologists read corresponding paraffin H&E slides. Three pathologists achieved a 95% or greater sensitivity with 100% specificity for detecting cancer on NLM compared with paraffin H&E. Pooled sensitivity and specificity was 97.3% (93.7-99.1%; 95% confidence interval) and 100.0% (97.0-100.0%), respectively. Interobserver agreement for NLM reading had a Fleiss κ = 0.95. The high cancer detection accuracy and rapid specimen preparation suggest that NLM may be useful for intraoperative evaluation in radical prostatectomy.
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Affiliation(s)
- Lucas C. Cahill
- Harvard-MIT Division of Health Sciences and Technology, Harvard Medical School and Massachusetts Institute of Technology, Cambridge, MA, USA,Department of Electrical Engineering and Computer Science and Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Yubo Wu
- Department of Pathology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | - Tadayuki Yoshitake
- Department of Electrical Engineering and Computer Science and Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Cecilia Ponchiardi
- Department of Pathology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | - Michael G. Giacomelli
- Department of Electrical Engineering and Computer Science and Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Andrew A. Wagner
- Department of Surgery, Division of Urology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | - Seymour Rosen
- Department of Pathology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | - James G. Fujimoto
- Department of Electrical Engineering and Computer Science and Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, MA, USA
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28
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Sighinolfi MC, Eissa A, Spandri V, Puliatti S, Micali S, Reggiani Bonetti L, Bertoni L, Bianchi G, Rocco B. Positive surgical margin during radical prostatectomy: overview of sampling methods for frozen sections and techniques for the secondary resection of the neurovascular bundles. BJU Int 2020; 125:656-663. [PMID: 32012426 DOI: 10.1111/bju.15024] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
OBJECTIVE The aim of the paper is to provide an overview of intraoperative sampling methods for frozen section (FS) analysis and of surgical techniques for a secondary neurovascular bundle (NVB) resection, as the method of surgical margin (SM) sampling and the management of a positive SM (PSM) at the nerve-sparing (NS) area are under evaluated issues. FS analysis during radical prostatectomy (RP) can help to tailor the plane of dissection based on cancer extension and thus extend the indications for NS surgery. EVIDENCE ACQUISITION We performed a PubMed/Medical Literature Analysis and Retrieval System Online (MEDLINE), Web of Science, Cochrane Library, and Elton B. Stephens Co. (EBSCO)host search to include articles published in the last decade, evaluating FS analysis in the NS area and surgical attempts to convert a PSM to a negative status. EVIDENCE SYNTHESIS Overall, 19 papers met our inclusion criteria. The ways to collect samples for FS analysis included: systematic (analysing the whole posterolateral aspect of the prostate specimen, i.e., neurovascular structure-adjacent frozen-section examination [NeuroSAFE]); magnetic resonance imaging (MRI)-guided (biopsies from MRI-suspicious areas, retrieved by the surgeon in a cognitive way); and random biopsies from the soft periprostatic tissues. Techniques to address a PSM in the NS area included: full resection of the spared NVB, from its caudal to cranial aspect, often including the rectolateral part of the Denonvilliers' fascia; partial resection of the NVB, in cases where sampling attempts to localise a PSM; incremental approach, meaning a partial or full resection that extends until no prostate tissue is found in the soft periprostatic environment. CONCLUSIONS There is no homogeneity in prostate sampling for FS analysis, although most recent evidence is moving toward a systematic sampling of the entire NS area. The management of a PSM is variable and can be affected by the sampling strategy (difficult localisation of the persisting tumour at the NVB). The difficult identification of the exact soft tissue location contiguous to a PSM could be considered as the critical point of FS analysis and of spared-NVB management.
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Affiliation(s)
| | - Ahmed Eissa
- Department of Urology, University of Modena & Reggio Emilia, Modena, Italy.,Urology Department, Faculty of Medicine, Tanta University, Tanta, Egypt
| | - Valentina Spandri
- Department of Urology, University of Modena & Reggio Emilia, Modena, Italy
| | - Stefano Puliatti
- Department of Urology, University of Modena & Reggio Emilia, Modena, Italy
| | - Salvatore Micali
- Department of Urology, University of Modena & Reggio Emilia, Modena, Italy
| | | | - Laura Bertoni
- Pathology Department, University of Modena & Reggio Emilia, Modena, Italy
| | - Giampaolo Bianchi
- Department of Urology, University of Modena & Reggio Emilia, Modena, Italy
| | - Bernardo Rocco
- Department of Urology, University of Modena & Reggio Emilia, Modena, Italy
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29
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Dinneen EP, Van Der Slot M, Adasonla K, Tan J, Grierson J, Haider A, Freeman A, Oakley N, Shaw G. Intraoperative Frozen Section for Margin Evaluation During Radical Prostatectomy: A Systematic Review. Eur Urol Focus 2019; 6:664-673. [PMID: 31787570 DOI: 10.1016/j.euf.2019.11.009] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2019] [Revised: 09/27/2019] [Accepted: 11/05/2019] [Indexed: 01/12/2023]
Abstract
CONTEXT Surgical margin status and preservation of the neurovascular bundles (NVB) are important prognostic indicators for oncological and functional outcomes of patients undergoing radical prostatectomy (RP). Intraoperative frozen section (IFS) has been used to evaluate margin status during surgery with the intention of reducing positive surgical margins (PSMs) and guiding safe preservation of the NVBs during RP, but its value is controversial. OBJECTIVE To evaluate current literature comparing outcomes of men undergoing RP with IFS versus RP without IFS. EVIDENCE ACQUISITION Medline, Embase, and Cochrane Library searches for all relevant publications (PROSPERO ID CRD42019125940), including comparative studies reporting on men undergoing RP with and without IFS, were performed. Outcomes of interest were surgical margin status, long-term oncological outcomes, NVB status, and erectile function (EF) recovery. Data were narratively synthesised in light of methodological and clinical heterogeneity of included studies. EVIDENCE SYNTHESIS After screening 834 publications, 10 nonrandomised retrospective comparative studies (including 16 897 patients) were retrieved. The technique of IFS differed considerably between studies. Eight studies reported a reduction in PSM rates (-1.4% to -14.5%) with IFS, though two studies report higher PSM rates (+0.4% and +10%) with IFS. Three studies reported on long-term oncological outcomes, and no difference was seen with IFS. Three studies reported on the performance of IFS systematically at the posterolateral margin of the prostate (neurovascular structure-adjacent frozen-section examination [NeuroSAFE] technique). In all these three studies, either NVB preservation or EF recovery was improved. All studies were deemed to be at either a serious or a moderate risk of bias. CONCLUSIONS No randomised controlled trials were identified, and significant heterogeneity existed with regard to many features of the studies included. Within the limitations of this review, the evidence suggests that IFS during RP can facilitate a modest reduction in PSM rates. There is evidence that IFS performed systematically at the posterolateral margin of the prostate can facilitate more NVB preservation. However, in the main, the lack of prospective, randomised, standardised research with long-term oncological and functional outcomes precludes strong conclusions and highlights the need for such studies. PATIENT SUMMARY The data of this review suggest that frozen section sampling of the prostate (ie, whilst the patient is still asleep) during prostate cancer surgery can reduce the likelihood of cancer being detected at the edge of the removed prostate. It also finds that a type of frozen section analysis (neurovascular structure-adjacent frozen-section examination [NeuroSAFE] technique) can help allow the nerves around the prostate to be left intact safely during surgery. However, the studies in this review are very different from one another and generally at a high risk of errors. Therefore, comparisons and conclusions must be made carefully.
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Affiliation(s)
- Eoin P Dinneen
- Division of Surgery and Interventional Science, University College London, Fitzrovia, London, UK; Department of Urology, University College London Hospital, London, UK.
| | - Michelle Van Der Slot
- Department of Pathology and Urology, Anser Prostate Operation Clinic, Maasstad Hospital, Rotterdam, The Netherlands
| | - Kelvin Adasonla
- Department of Urology, University College London Hospital, London, UK
| | - Jin Tan
- Department of Urology, University College London Hospital, London, UK
| | - Jack Grierson
- Surgical & Interventional Trials Unit, University College London, Fitzrovia, London, UK
| | - Aiman Haider
- Department of Histopathology, University College Hospital London, London, UK
| | - Alex Freeman
- Department of Histopathology, University College Hospital London, London, UK
| | - Neil Oakley
- Department of Urology, Sheffield Teaching Hospitals NHS Trust, Royal Hallamshire Hospital, Sheffield, UK
| | - Greg Shaw
- Division of Surgery and Interventional Science, University College London, Fitzrovia, London, UK; Department of Urology, University College London Hospital, London, UK
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Kováčik V, Maciak M, Baláž V, Babeľa J, Kubas V, Bujdák P, Beňo P. Advanced Reconstruction of Vesicourethral Support (ARVUS) during robot-assisted radical prostatectomy: first independent evaluation and review of other factors influencing 1 year continence outcomes. World J Urol 2019; 38:1933-1941. [PMID: 31616979 DOI: 10.1007/s00345-019-02975-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2019] [Accepted: 09/27/2019] [Indexed: 02/08/2023] Open
Abstract
PURPOSE Anterior and posterior reconstructions of pelvic structures are used during a robot-assisted radical prostatectomy to obtain better continence outcomes. This study was conducted to evaluate the Advanced Reconstruction of Vesicourethral Support (ARVUS), a novel postprostatectomy reconstruction technique. METHODS The study was designed as a prospective, controlled, partially randomized and blinded experiment. The statistical analysis was based on the generalized linear modeling (GLM) framework with random effects: the logit link was used to model the probability of achieving continence and the logarithmic link was used to evaluate the overall score of the International Consultation on Incontinence Questionnaire-Short Form (ICIQ-SF). The significance of the fixed effects and all possible two-way interactions was tested using the critical level of 0.05. RESULTS The probability of achieving the continence significantly depends on the neurovascular bundle sparing (p < 0.001) and the time after the surgery (p < 0.001). Analogously, the expected ICIQ-SF score significantly depends on the nerve-sparing status (p = 0.035) and the time after the surgery (p < 0.001). No statistically significant difference between the unilateral or bilateral nerve sparing was found. The ARVUS technique seems to perform slightly worse with respect to the expected continence, but this difference is within the margins of random fluctuations (p = 0.715). CONCLUSIONS The study demonstrates a significant positive association between the nerve-sparing approach and the patient's continence, however, regardless of the unilateral or bilateral approach. In terms of the continence rate, no statistically significant benefits of ARVUS were observed.
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