Publications by authors named "Rja van Moorselaar"

Bladder cancer often recurs, necessitating innovative treatments to reduce recurrence. We investigated non-thermal plasma's potential as a novel anti-cancer therapy, focusing on plasma-activated solution (PAS), created by exposing saline to non-thermal plasma. Our study aims to elucidate the biological effects of PAS on bladder cancer cell lines in vitro, as well as the combination with mitomycin C (MMC), using clinically relevant settings.

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Background And Objective: Current guidelines on radiological follow-up (FU) for patients after treatment for nonmetastatic renal cell carcinoma (RCC) are not based on robust evidence. This review aims to evaluate whether the 2022 European Association of Urology (EAU) guidelines are noninferior, in terms of recurrence and (overall) survival, to a higher imaging frequency of computed tomography (CT) of the chest and abdomen.

Methods: A literature search of relevant search machines (PubMed/Medline and EMBASE) was performed up to May 29, 2024.

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Background: International guidelines recommend germline genetic testing for men with metastatic prostate cancer. If offered to all patients by genetic healthcare professionals, there will be insufficient capacity to cope with the high patient numbers. In a mainstreaming pathway, non-genetic healthcare professionals (ngHCPs) discuss and order germline genetic testing instead of referring patients to genetic healthcare professionals.

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Although cystoscopy is a reliable tool for detecting bladder cancer (BC) in patients with hematuria, it is invasive, costly and often unnecessary since most patients with hematuria do not have BC. Consequently, developing urinary biomarkers for non-invasive BC detection is a major clinical need. While DNA methylation markers hold promise, diagnostic performance can still be improved.

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: To determine the rate of benign pathology in cT1 tumors following partial nephrectomy in the Netherlands, thereby evaluating the rate of overtreatment. Data were collected from a nationwide database containing histopathology of resected renal tissue from 2014 to 2022. Patients who underwent partial nephrectomy for suspected RCC staged T1a-b were extracted for analysis.

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Purpose: Although cystoscopy is a reliable tool for detecting bladder cancer, it poses a high burden on patients and entails high costs. This highlights the need for non-invasive and cost-effective alternatives. This study aimed to validate a previously developed urinary methylation marker panel containing GHSR and MAL.

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The co-treatment of androgen deprivation therapy (ADT) for advanced prostate cancer (PCa) with the fetal estrogen estetrol (E4) may further inhibit endocrine PCa tumor stimulators. We previously reported the suppression of follicle-stimulating hormone (FSH), total and free testosterone, and prostate-specific antigen by ADT+E4. Here, we provide more detailed data on FSH suppression by E4 and present new findings on the effect of ADT+E4 on insulin-like growth factor-1 (IGF-1).

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Background And Objective: Upper tract urothelial carcinoma (UTUC) can be managed efficiently and safely through kidney-sparing surgery (KSS) in selected patient groups. However, the most effective and efficient postoperative surveillance strategy remains undetermined. We aimed to provide a comprehensive synopsis of the follow-up strategies and survival outcomes in patients diagnosed with UTUC treated by KSS.

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Background: Various risk classification systems (RCSs) are used globally to stratify newly diagnosed patients with prostate cancer (PCa) into prognostic groups.

Objective: To compare the predictive value of different prognostic subgroups (low-, intermediate-, and high-risk disease) within the RCSs for detecting metastatic disease on prostate-specific membrane antigen (PSMA) positron emission tomography (PET)/computed tomography (CT) for primary staging, and to assess whether further subdivision of subgroups would be beneficial.

Design, Setting, And Participants: Patients with newly diagnosed PCa, in whom PSMA-PET/CT was performed between 2017 and 2022, were studied retrospectively.

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Background And Objective: The implementation of quality assurance programs (QAPs) within urological practice has gained prominence; yet, their impact on outcomes after radical prostatectomy (RP) remains uncertain. This paper aims to systematically review the current literature regarding the implementation of QAPs and their impact on outcomes after robot-assisted RP, laparoscopic RP, and open prostatectomy, collectively referred to as RP.

Methods: A systematic Embase, Medline (OvidSP), and Scopus search was conducted, according to the Preferred Reporting Items for Systematic Reviews and Meta-analyses (PRISMA) process, on January 12, 2024.

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Purpose: To evaluate the impact of the COVID-19 pandemic on renal cell carcinoma (RCC) care in the Netherlands.

Methods: Newly diagnosed RCCs between 2018 and 2021 were selected from the Netherlands Cancer Registry; 2020-2021 was defined as COVID period and 2018-2019 as reference period. Numbers of RCCs were evaluated using 3-week-moving averages, overall and by disease stage and age.

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Background And Objectives: The association between prostate-specific antigen (PSA) level and probability of metastatic disease on prostate-specific membrane antigen (PSMA) positron emission tomography/computed tomography (PET/CT) has not yet been established in patients with newly diagnosed prostate cancer (PCa). Our objective was to assess the probability of metastatic disease within different PSA ranges using PSMA PET/CT for initial staging of PCa, and to identify both the anatomical distribution and the predictors of metastases on PSMA PET/CT.

Methods: In total, 2193 patients with newly diagnosed PCa were retrospectively studied.

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Background: Tumour recurrences are frequent among patients with upper tract urothelial carcinoma (UTUC) treated with ureteroscopy (URS). Therefore, guidelines recommend a strict follow-up regimen, but there is little evidence on how to do this.

Objective: To analyse outcomes during our follow-up regimen and the impact on treatment in terms of ipsilateral UTUC recurrence, treatment conversion, and tumour upgrading, and to evaluate potential prognostic factors, including second-look URS outcomes.

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Introduction: Although very uncommon, severe injury and death can occur during scuba diving. One of the main causes of scuba diving fatalities is pulmonary barotrauma due to significant changes in ambient pressure. Pathology of the lung parenchyma, such as cystic lesions, might increase the risk of pulmonary barotrauma.

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Purpose: With the introduction of kidney-sparing surgery (KSS) for low-risk Upper Tract Urothelial Carcinoma (UTUC), correct risk-stratification has become crucial. High-grade cytology is one of the decisive variables to stratify a tumor as high-risk. To position the role of urine cytology in the diagnostic pathway of UTUC patients, we evaluated the accuracy of urine cytology by comparing the outcomes with histopathology.

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Article Synopsis
  • The study investigates the use of radiomics from PSMA-PET imaging modeled with machine learning to predict disease risk factors in prostate cancer, focusing on lymph-node involvement (LNI), extracapsular extension (ECE), and postoperative Gleason score (GS).
  • A total of 123 intermediate- to high-risk prostate cancer patients were analyzed using various machine learning methods and a comprehensive dataset, leading to significant predictive performance for Gleason score but not for LNI or ECE.
  • The results indicate that while ML models show promise, especially for GS prediction, further validation is needed, and combat harmonization techniques can enhance performance in external datasets.
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In transgender men, effects of colpectomy on voiding function are unknown, except for the incidence rates of urinary tract infections and urinary retention. To provide insight into the effect of colpectomy on Lower Urinary Tract Function (LUTF) in transgender men. A retrospective chart review was conducted among transgender men who underwent colpectomy between January 2018 and October 2020.

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Background: Several hereditary disorders, with highly variable and sometimes difficult to recognize manifestations, can present with a spontaneous pneumothorax. Options to perform DNA-testing have changed rapidly, as a result of which physicians of diverse disciplines are coming into contact with hereditary disorders.

Case Description: Two patients with a history of multiple spontaneous pneumothoraxes were seen at the outpatient clinic of the department of Clinical Genetics.

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Objectives: To analyse variation in clinical management of cT1 renal cell carcinoma (RCC) in the Netherlands related to surgical hospital volume (HV).

Materials And Methods: Patients diagnosed with cT1 RCC during 2014-2020 were identified in the Netherlands Cancer Registry. Patient and tumour characteristics were retrieved.

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Article Synopsis
  • * A panel of 39 Dutch experts used a modified Delphi method to discuss and vote on the appropriateness of testing, reaching consensus on only 44% of their questions.
  • * Key findings suggest that patients with a family history might benefit from certain types of genetic testing, but limitations include a lack of scientific evidence for some recommendations and a limited number of specialists involved in the discussions.
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Article Synopsis
  • Data management in cancer care is complicated, especially without digital tools like Health Information Exchange (HIE), leading to scattered patient data across hospitals.
  • A study observed 84 cancer treatment meetings involving 165 patients, finding that only 17.6% had complete patient information available, resulting in unnecessary repeat tests for 15.8% of patients.
  • The research highlights the need for better information sharing in oncology, suggesting that HIE could enhance data transfer and reduce redundant diagnostics.
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Purpose: Prostate-specific membrane antigen (PSMA) positron emission tomography/computed tomography (PET/CT) is an emerging staging tool for patients with primary high-risk prostate cancer (PCa). Patients with primary metastatic disease are staged using PSMA-PET/CT imaging, while previously published randomized clinical trials relied on conventional imaging (i.e.

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Birt-Hogg-Dubé syndrome (BHD) is an autosomal dominant disorder characterized by fibrofolliculomas, pulmonary cysts, pneumothoraces and renal cell carcinomas. Here, we reveal a novel hereditary disorder in a family with skin and mucosal lesions, extensive lipomatosis and renal cell carcinomas. The proband was initially diagnosed with BHD based on the presence of fibrofolliculomas, but no pathogenic germline variant was detected in FLCN, the gene associated with BHD.

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