Publications by authors named "Felix Preisser"

Background: Prostate-specific membrane antigen (PSMA) positron emission tomography (PET) has a high negative predictive value (NPV) in determining lymph node invasion (LNI) in men with intermediate-risk disease undergoing radical prostatectomy (RP) and pelvic lymph node dissection (PLND). We hypothesized that PSMA PET may be used to reduce the number of unnecessary PLND procedures performed.

Objective: To assess BCR-free survival of intermediate risk prostate cancer patients with a negative PSMA PET who underwent PLND vs.

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  • Prostate-specific antigen (PSA) testing is critical for monitoring prostate cancer patients after treatment, but there's uncertainty about PSA thresholds for identifying those at higher risk of biochemical recurrence (BCR).
  • This study analyzed 4,639 prostate cancer patients who had undetectable PSA levels for at least 10 years post-surgery, finding that 5.2% later developed BCR, with some progressing to metastatic cancer.
  • Key factors predicting late BCR included advanced tumor stage, Gleason score, and surgical margins, while age and initial PSA levels did not significantly predict outcomes.
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  • The study investigates the differences in overall survival (OS) between patients with metastatic hormone-sensitive prostate cancer (mHSPC) based on whether their condition was "De Novo" (newly diagnosed) or "secondary" (progressed from previous conditions), and their disease volume (high vs. low).
  • The research used a database of 504 mHSPC patients, finding that those with De Novo high volume mHSPC had shorter time to develop metastatic castration resistant prostate cancer (mCRPC) and worse OS compared to secondary and low volume cases.
  • The results highlight that patients with De Novo high volume mHSPC have a more challenging prognosis even when treated with intensified combination therapies, and this trend
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  • A shift in prostate biopsy methods favors the transperineal (TP) approach over the transrectal (TR) approach due to a lower risk of severe urinary tract infections, but its effect on detecting clinically significant prostate cancer (csPCa) is uncertain.
  • Researchers analyzed data from patients who had suspicious MRI findings, comparing csPCa detection rates between TP and TR approaches, and did not find significant differences in detection rates (51% TP vs. 52% TR overall).
  • The findings suggest that TP and TR biopsy methods are equally effective for detecting clinically significant prostate cancer, supporting the adoption of the TP approach.
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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.

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Purpose: Accurate prediction of extraprostatic extension (EPE) is pivotal for surgical planning. Herein, we aimed to provide an updated model for predicting EPE among patients diagnosed with MRI-targeted biopsy.

Materials And Methods: We analyzed a multi-institutional dataset of men with clinically localized prostate cancer diagnosed by MRI-targeted biopsy and subsequently underwent prostatectomy.

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Objectives: To test for differences in overall and recurrence-free survival between laparoscopic and open surgical approaches in patients undergoing radical nephroureterectomy (RNU) for upper tract urothelial carcinoma (UTUC).

Materials And Methods: We retrospectively identified patients treated for UTUC from 2010 to 2020 from our institutional database. Patients undergoing laparoscopic or open RNU with no suspicion of metastasis (cM0) were for the current study population.

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Objective: To assess the influence of biochemical recurrence (BCR) risk groups and PSA kinetics on the outcomes of radioguided surgery against prostate-specific membrane antigen (PSMA-RGS). Currently, neither BCR risk group nor PSA doubling time (PSA-DT), or PSA velocity (PSA-V) are actively assigned or relevant for counseling prior to PSMA-RGS.

Methods: We retrospectively analyzed PSMA-RGS cases for oligorecurrent prostate cancer between 2014 and 2023.

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Background And Objective: Persistent prostatic specific antigen (PSA) represents a poor prognostic factor for recurrence after radical prostatectomy (RP). However, the impact of persistent PSA on oncologic outcomes in patients undergoing salvage RP is unknown. To investigate the impact of persistent PSA after salvage RP on long-term oncologic outcomes.

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: We aimed to test the impact of age on long-term urinary continence (≥12 months) in patients undergoing robotic-assisted radical prostatectomy. : We relied on an institutional tertiary-care database to identify the patients who underwent robotic-assisted radical prostatectomy between January 2014 and January 2021. Patients were divided into three age groups: age group one (≤60 years), age group two (61-69 years) and age group three (≥70 years).

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Background: Lymph node invasion (LNI) represents a poor prognostic factor after primary radical prostatectomy (RP) for prostate cancer (PCa). However, the impact of LNI on oncologic outcomes in salvage radical prostatectomy (SRP) patients is unknown.

Objective: To investigate the impact of lymph node dissection (LND) and pathological lymph node status (pNX vs.

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Background: The European Association of Urology (EAU) has proposed a risk stratification for patients harboring biochemical recurrence (BCR) after radical prostatectomy (RP).

Objective: To assess whether this risk stratification helps in choosing patients for salvage radiotherapy (SRT).

Design, Setting, And Participants: Analyses of 2379 patients who developed BCR after RP (1989-2020), within ten European high-volume centers, were conducted.

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Purpose: Bilateral extended pelvic lymph node dissection at the time of radical prostatectomy is the current standard of care if pelvic lymph node dissection is indicated; often, however, pelvic lymph node dissection is performed in pN0 disease. With the more accurate staging achieved with magnetic resonance imaging-targeted biopsies for prostate cancer diagnosis, the indication for bilateral extended pelvic lymph node dissection may be revised We aimed to assess the feasibility of unilateral extended pelvic lymph node dissection in the era of modern prostate cancer imaging.

Materials And Methods: We analyzed a multi-institutional data set of men with cN0 disease diagnosed by magnetic resonance imaging-targeted biopsy who underwent prostatectomy and bilateral extended pelvic lymph node dissection.

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Context: The introduction of prostate-specific membrane antigen positron emission tomography (PSMA-PET) had a substantial impact on the management of prostate cancer (PCa) patients with a stage migration phenomenon and consequent treatment changes.

Objective: To summarise the role of PSMA-PET to define the burden of disease through an accurate location of metastatic site(s) in PCa patients, describing the most common locations at PSMA-PET in the primary staging and recurrence setting, and to assess the clinical impact in the decision-making process.

Evidence Acquisition: A comprehensive nonsystematic literature review was performed in April 2022.

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Introduction: The urological community's opinion over the management of men being found with pathologically positive nodes (pN+) following radical prostatectomy (RP) performed with curative intent after preoperative negative conventional staging (cN0M0) has never been assessed. This remains crucial, especially considering the advent of novel imaging modalities. Our aim was to investigate the current opinion on management of pN+ cN0M0 prostate cancer (PCa) in the European urological community.

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Purpose: Although active surveillance (AS) is recommended for low- to favorable intermediate-risk prostate cancer (PCa), risk of upgrading at radical prostatectomy (RP) is not negligible. Available studies based on systematic transrectal ultrasound biopsy might not be applicable to contemporary cohorts diagnosed with MRI-targeted biopsy (TB). The aim of the present study is to explore rates and risk factors for adverse outcomes (AO) at RP in patients with ISUP ≤ 2 PCa detected at TB with concomitant systematic biopsy (SB).

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Treatment of the high-risk and locally advanced prostate cancer is a challenge in daily practice. At 20-40%, patients with such tumor stages currently make up the majority of patients at high-volume centers. Due to COVID-19, the proportion of patients with this tumor stage will probably continue to increase in the next few years.

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Background: To test the effect of race/ethnicity on cancer-specific mortality (CSM) after salvage radical prostatectomy (SRP).

Material And Methods: We relied on the Surveillance, Epidemiology and End Results database (SEER, 2004-2016) to identify SRP patients of all race/ethnicity background. Univariate and multivariate Cox regression models addressed CSM according to race/ethnicity.

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Context: Two recent randomized controlled trials (RCTs) reported overall survival benefit of triplet therapy (androgen receptor axis-targeted therapy agent [ARAT], docetaxel, and androgen deprivation therapy [ADT]) over that of doublet therapy (docetaxel and ADT) in patients with metastatic hormone-sensitive prostate cancer (mHSPC). Ranking of therapy options and comparisons between triplet therapy and doublet ARAT and ADT therapy are scarce.

Objective: To rank therapy options (triplet vs doublet [docetaxel and ADT] vs doublet [ARAT and ADT]) and address them within formal network meta-analyses (NMAs); subsequently, NMAs were refitted following stratification according to (1) low- and high-volume tumor burden and (2) doublet versus triplet therapy.

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Introduction: The aim of this article was to test the impact of diabetes mellitus (DM) on short-term urinary continence in patients undergoing radical prostatectomy (RP).

Material And Methods: We relied on an institutional tertiary-care database to identify patients who underwent RP between 11/2018 and 02/2021 with data available on short-term urinary continence status (30-90 days post-surgery). Continence was defined as the usage of no or one safety-pad within 24 hours.

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The aim of this study is to investigate the incidental prostate cancer (iPCa) detection rates of different embedding methods in a large, contemporary cohort of patients with bladder outlet obstruction (BOO) treated with transurethral surgery. We relied on an institutional tertiary-care database to identify BOO patients who underwent either transurethral loop resection or laser (Holmium:yttrium-aluminium garnet) enucleation of the prostate (HoLEP) between 01/2012 and 12/2019. Embedding methods differed with regard to the extent of the additional prostate tissue submitted following the first ten cassettes of primary embedding (cohort A: one [additional] cassette/10 g residual tissue vs.

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Introduction: Since the beginning of the pandemic in 2020, COVID-19 has changed the medical landscape. International recommendations for localized prostate cancer (PCa) include deferred treatment and adjusted therapeutic routines.

Materials And Methods: To longitudinally evaluate changes in PCa treatment strategies in urological and radiotherapy departments in Germany, a link to a survey was sent to 134 institutions covering two representative baseline weeks prior to the pandemic and 13 weeks from March 2020 to February 2021.

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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.

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