Publications by authors named "Yannic Volz"

Radical cystectomy (RC) with the formation of an ileal orthotopic neobladder (ONB) may adversely affect long-term health-related quality of life (HRQOL). An advanced age at the time of ONB construction could further exacerbate the decline in HRQOL. This study aims to establish an evidence-based age threshold at the time of RC with ONB, beyond which a significant deterioration in HRQOL is observed.

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Background: An increased intraoperative opioid dose seems to lead to worse outcomes in several types of cancer. We assessed the effect of intraoperatively administered opioids as well as the type of anesthesia on survival, recurrence rates and major perioperative outcomes in patients who underwent radical cystectomy (RC) for urothelial carcinoma of the urinary bladder.

Methods: We included patients who underwent open RC at our center between 2015 and 2022.

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Background And Objective: Major urological guidelines do not currently recommend robot-assisted surgery compared with laparoscopic or open surgery due to the lack of high-quality evidence. We aimed to provide real-world data on the evolution of robotic urology and to compare its perioperative outcomes with those of laparoscopic and open surgeries.

Methods: We used the GeRmAn Nationwide inpatient Data (GRAND), provided by the Research Data Center of the Federal Bureau of Statistics (2005-2021), and performed multiple patient-level analyses.

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Article Synopsis
  • Photodynamic diagnosis (PDD) improves bladder cancer detection during transurethral resection of bladder tumor (TURBT), but its everyday implementation is not fully assessed.
  • An analysis of Germany's patient data from 2010 to 2021 revealed that PDD use increased two-fold, with PDD patients being younger and discharged earlier yet incurring about €500 more in costs.
  • PDD was associated with lower rates of transfusions, ICU admissions, and 30-day mortality compared to traditional white-light TURBT, though it also had slightly higher rates of bladder perforation and reoperations, indicating more research is needed before it becomes standard practice.
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  • The study analyzed in-hospital outcomes and trends for patients with low-flow and high-flow priapism using data from Germany's nationwide inpatient records between 2008-2021.
  • It included a total of 6,588 low-flow and 729 high-flow priapism cases, revealing an increase in low-flow cases requiring hospitalization and a decline in high-flow cases over recent years.
  • The findings indicated that 22.4% of low-flow patients required shunt surgery, especially among those with sickle cell disease, while high-flow cases were primarily managed conservatively, showing no significant differences in hospital stay or complications related to treatment.
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Background: Suspicion of testicular torsion represents a urological emergency, necessitating immediate surgery. Comprehensive data on the current trends and perioperative outcomes regarding surgical exploration are sparse. Therefore, we utilized nationwide data on the prevalence and results of this surgery, aiming to provide evidence on this matter.

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Introduction: Studies assessing the impact of preoperative and first-day postoperative values of leukocytes, thrombocytes, and platelet/leukocyte ratio (PLR) after radical cystectomy (RC) are sparse. We aimed to assess the impact of these factors on long-term survival after RC.

Methods: An analysis of patients undergoing open RC from 2004 to 2023 at our center was performed.

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Introduction: Radical cystectomy (RC) is the gold standard for muscle-invasive bladder cancer. Nevertheless, RC is associated with substantial perioperative morbidity and mortality. We aimed to evaluate the role of important perioperative risk factors in predicting long-term survival after RC.

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Objectives: To determine a data-based optimal annual radical cystectomy (RC) hospital volume threshold and evaluate its clinical significance regarding perioperative mortality, complications, length of hospital stay, and hospital revenues.

Material And Methods: We used the German Nationwide inpatient Data, provided by the Research Data Center of the Federal Bureau of Statistics (2005-2020). 95,841 patients undergoing RC were included.

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Article Synopsis
  • The study aimed to evaluate the benefits of adding ultrasonography-guided biopsies (SBx) to multiparametric MRI-targeted biopsies for detecting clinically significant prostate cancer (csPCa) and to assess the risk of overdiagnosing clinically insignificant prostate cancer (ciPCa).
  • A total of 1552 men with positive MRI underwent both types of biopsies, revealing that SBx contributed to the detection of csPCa in 15% of cases where mpMRI-targeted biopsy either returned negative results or detected ciPCa.
  • The analysis indicated a 22% overdiagnosis rate from SBx, and factors like the presence of high-grade lesions (PI-RADS 4 and 5) and
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Background: The oncological impact of perioperative blood transfusions (PBTs) of patients undergoing radical cystectomy (RC) because of bladder cancer (BCa) has been a controversial topic discussed in recent years. The main cause for the contradictory findings of existing studies might be the missing consideration of the storage time of red blood cell units (BUs), donor age, and gender matching.

Study Design And Methods: We retrospectively analyzed BCa patients who underwent RC in our department between 2004 and 2021.

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We aimed to assess the recommended annual hospital volume for inflatable penile prosthesis implantation (PPI) and to provide evidence on perioperative outcomes of semi-rigid and inflatable PPI in Germany. We used the GeRmAn Nationwide inpatient Data (GRAND) from 2005 to 2021 and report the largest study to date with 7,222 patients. 6,818 (94.

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Introduction: Transurethral resection of the bladder (TUR-BT) is the standard initial treatment and diagnosis of bladder cancer (BC). Of note, upstaging into muscle-invasive disease (MIBC) during re-resection occurs in a significant proportion of patients. This study aimed to define risk factors at initial TUR-BT for upstaging.

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Objectives: To explore whether Christmas might be a risk factor for penile fractures due to the Christmas spirit related to the intimacy and euphoria of these holly jolly days.

Patients And Methods: We evaluated the incidence of penile fractures during Christmas and New Year's Eve through the GeRmAn Nationwide inpatient Data (GRAND) from the Research Data Center of the Federal Bureau of Statistics (Wiesbaden, Germany). Furthermore, we assessed the impact of COVID-19 on penile fractures and their seasonality.

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Objective: Multiparametric magnetic resonance imaging (mpMRI) -Ultrasound- fusion guided biopsy of the prostate (FBx) is the new gold standard for the detection of prostate cancer. Hallmark studies showing superior detection rates of FBx over randomized biopsies routinely excluded patients≥75 years and information on outcome of FBx on this patient cohort is sparse. As a large referral center, we have performed FBx on a substantial number of patients this age.

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The growing number of prostate cancer cases is a real concern in modern society. Over 1.4 million new cases and about 400 thousand (>26%) deaths were registered worldwide in 2020 due to prostate cancer.

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Multiparametric magnetic resonance imaging (mpMRI) has emerged as a new cornerstone in the diagnostic pathway of prostate cancer. However, mpMRI is not devoid of factors influencing its detection rate of clinically significant prostate cancer (csPCa). Amongst others, prostate volume has been demonstrated to influence the detection rates of csPCa.

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Article Synopsis
  • The study investigates how factors related to patients, surgery, and tumors affect the presence of detrusor muscle (DM) in bladder cancer surgeries and its influence on patient outcomes.
  • Out of 3,237 TUR-BTs analyzed, DM was found in 67.6% of cases, with surgery duration, tumor type, and location being significant predictors for DM absence.
  • The absence of DM, particularly in high-grade bladder cancer, is linked to a lower chance of recurrence-free survival, highlighting the need for thorough and skilled surgical techniques.
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Background: Molecular bladder cancer (BC) subtypes define distinct biological entities and were shown to predict treatment response in neoadjuvant and adjuvant settings. The extent of intratumoral heterogeneity (ITH) might affect subtyping of individual patients.

Objective: To comprehensively assess the ITH of molecular subtypes in a cohort of muscle-invasive BC.

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Background: Transrectal (TR) prostate biopsy is the gold standard in diagnosis of prostate cancer (PC). It requires a precise and safe technique for sample acquisition.

Objective: Several approaches will be discussed to avoid overdiagnosis, false-negative results, and complications of the procedure.

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The clinical and histological diagnosis of prostate cancer is a crucial aspect of the routine work of a urologist. The high prevalence of multiresistant microorganisms leads to an increased incidence of sepsis after transrectal prostate biopsy. It requires a switch from the still gold-standard method to the transperineal fusion biopsy procedure after multiparametric prostate magnetic resonance imaging (MRI).

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Objective: Over the last decade, active surveillance (AS) of low-risk prostate cancer has been increasing. The mpMRI fusion-guided biopsy of the prostate (FBx) is considered to be the gold standard in preoperative risk stratification. However, the role of FBx remains unclear in terms of risk stratification of low-risk prostate cancer outside high-volume centers.

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Introduction: Fear of cancer recurrence (FCR) is a challenging and often unaddressed concern, and predictive factors for high FCR remain unclear. Therefore, the aim of the current study was to assess predictive factors for high FCR in patients undergoing surgery for genitourinary cancer.

Materials And Methods: Overall, 525 patients were prospectively included.

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Background: Tumor infiltrating lymphocytes (TILs) are known as important prognostic biomarkers and build the fundament for immunotherapy. However, the presence of TILs and its impact on outcome in pure squamous cell carcinoma (SCC) of the bladder remains uncertain. Methods: Out of 1600 patients undergoing radical cystectomy, 61 patients revealed pure bladder SCC in the final histopathological specimen.

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