Bahadır Şahin

ORCID: 0000-0002-4874-4178
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Research Areas
  • Prostate Cancer Diagnosis and Treatment
  • Prostate Cancer Treatment and Research
  • Sexual function and dysfunction studies
  • Hormonal and reproductive studies
  • Urinary Bladder and Prostate Research
  • Pelvic floor disorders treatments
  • Sexual Differentiation and Disorders
  • Genital Health and Disease
  • Sperm and Testicular Function
  • Bladder and Urothelial Cancer Treatments
  • COVID-19 and healthcare impacts
  • Urological Disorders and Treatments
  • Pediatric Urology and Nephrology Studies
  • Radiomics and Machine Learning in Medical Imaging
  • Brain Metastases and Treatment
  • Healthcare cost, quality, practices
  • Colorectal Cancer Screening and Detection
  • Urinary and Genital Oncology Studies
  • Urologic and reproductive health conditions
  • Cancer-related cognitive impairment studies
  • Gallbladder and Bile Duct Disorders
  • COVID-19 and Mental Health
  • Medical Malpractice and Liability Issues
  • Kidney Stones and Urolithiasis Treatments
  • Inflammatory Bowel Disease

Marmara University
2015-2025

Turkish Society of Cardiology
2020

Photonics Electronics Technology Research Association
2018

Türkiye Yüksek İhtisas Hastanesi
2005

Abstract Background Angiotensin‐converting enzyme 2 and transmembrane protease serine are critical factors of virus transmission. Expression angiotensin‐converting is highest in testes, testicular function testosterone levels were affected by coronavirus disease 2019. Low related to infections, especially respiratory tract could worsen clinical conditions exacerbating cytokine storms increasing pro‐inflammatory cytokines. Objectives We aimed evaluate the acute chronic effects 2019 on gonadal...

10.1111/andr.13152 article EN Andrology 2022-01-07

This study investigated 1) the frequency of quotation errors in multi-authored medical manuscripts andrology, 2) analyzed common types and methods used to rectify them, 3) evaluated their impact on manuscript accuracy, credibility, research conclusions. Twelve written by Global Andrology Forum (GAF) members between 2023 2024 were randomly selected for this study. The "Quotation Verification Sheets" senior GAF researchers detect number errors. error rate was calculated total all cited...

10.5534/wjmh.240255 article EN cc-by-nc The World Journal of Men s Health 2025-01-01

Abstract Background Crohn's disease (CD) is a chronic, remitting with sometimes inadequate response to the treatment and these factors may impact quality of life patients. Our study aims evaluate fistulizing disease, different options activity on in CD. Methods Patients who applied inflammatory bowel outpatient clinic between August 2021 September 2023 were invited respectively. agreed participate included study. The patients was assessed Inflammatory Bowel Disease Questionnaire (IBDQ),...

10.1093/ecco-jcc/jjae190.0736 article EN Journal of Crohn s and Colitis 2025-01-01

Premature ejaculation (PE) is a commonly encountered male sexual dysfunction (MSD) with various definitions, diagnostic criteria, and treatment options, leading to significant heterogeneity controversy in its management. This study aimed explore the global practice patterns of diagnosis management PE. A cross-sectional, global, online survey on PE was conducted using questionnaire developed by an international cohort experts. Results were analyzed R version 4.1.2. Additionally, expert...

10.5534/wjmh.240260 article EN cc-by-nc The World Journal of Men s Health 2025-01-01

To evaluate the performance of Chat Generative Pre-trained Transformer (ChatGPT), a large language model trained by Open artificial intelligence.

10.1089/end.2023.0413 article EN Journal of Endourology 2024-05-30

The purpose of this study, is to find out the most accurate cut-off level for detrusor leak point pressure (DLPP) in terms upper urinary tract (UUT) protection a cohort children with myelodysplasia.One hundred and ninety-three myelodysplasia were included study based on availability urological evaluation at age 3 years. Children assigned one two groups-those who had UUT damage (group 1, n: 70) those without changes 2, 123), compared.Urological follow-up data revealed higher incidences...

10.1002/nau.23017 article EN Neurourology and Urodynamics 2016-04-15

To compare the clinically significant prostate cancer (csPC)-detecting results of transperineal and transrectal targeted biopsy (TPTB TRTB, respectively) by performing matching analysis.This study has used PC database from Turkish Urooncology Association. A total 1143 patients with Prostate Imaging-Reporting Data System (PI-RADS) ≥3 lesions on multiparametric magnetic resonance imaging (mpMRI) who had received a software-guided transperineal/transrectal MRI/transrectal ultrasound (TRUS)...

10.1002/pros.24288 article EN The Prostate 2021-12-20

To investigate the predictive value of lesion length in multiparametric prostate MRI with respect to volume for clinically significant cancer diagnosis targeted biopsies. The data biopsy naïve patients Turkish Urooncology Association Prostate Cancer Database who underwent biopsies were included this study. Lesion density is calculated as ratio length(mm) MR volume(cc). results divided into either or insignificant and benign groups. difference parameters between groups evaluated by...

10.1016/j.prnil.2024.06.001 article EN cc-by-nc-nd Prostate International 2024-06-07

Background/Aim: This study aims to compare the success rates of rigid registration (RR) and elastic (ER)systems in diagnosing all cancers clinically significant prostate cancer (csPC) software-based targeted biopsies (TPBs) by performing matching analysis.Materials Methods: The data 2,061 patients from six centers where TPB was performed were used. All csPC detection RR ER systems compared following Mahalanobis distance within propensity score caliper method. Logistic regression analysis...

10.55730/1300-0144.5916 article EN cc-by TURKISH JOURNAL OF MEDICAL SCIENCES 2024-12-09

Following the COVID-19 pandemic, face-to-face meetings are delayed to a future date, which is still not clear. However, seminars, and conferences necessary for updating our knowledge skills. Web-based seminars (webinars) solutions this issue. This study aimed show participant behaviour when webinars present at pandemic era.

10.1111/ijcp.14239 article EN International Journal of Clinical Practice 2021-04-18

Surgical trauma due to vaginal wall incision extract the specimen during transvaginal hybrid Natural-Orifices-Transluminal-Endoscopic-Surgery (NOTES) nephrectomy can result in sexual dysfunction and have traumatic psychological impacts. We evaluated alteration of functions postoperative period.Patients who underwent a NOTES were prospectively enrolled. Patients their partners with Golombok-Rust Inventory Sexual Satisfaction (GRISS) questionnaire pre- post-operatively. characteristics...

10.1080/08941939.2019.1710627 article EN Journal of Investigative Surgery 2020-01-06

Aim To evaluate the accuracy in histologic grading of MRI/US image fusion biopsy by comparing conventional 12-core TRUS-Bx at radical prostatectomy specimens (RP). Methods Consecutive patients diagnosed prostate cancer (127 with combination both targeted (TBx) plus systematic biopsies (SBx) and separate patient cohort 330 without mpMRI) a PSA level <20 ng/mL prior to RP were included. The primary end point was grade group concordance between pathology according technique. Results Clinically...

10.1111/ijcp.13797 article EN International Journal of Clinical Practice 2020-10-28

Abstract Aims of the study The aim this was to investigate impact testosterone deficiency on cognitive functions in metastatic prostate cancer patients receiving androgen deprivation therapy (ADT). Methods In multicentric prospective study, 65 were evaluated. Demographic and clinical data recorded. Cognitive assessed using Symbol Digit Modalities Test, California Verbal Learning Test Second Edition, Brief Visuospatial Memory Test—Revised, Trail Making Test. Depressive symptoms Beck...

10.1111/ijcp.14095 article EN International Journal of Clinical Practice 2021-02-23

Introduction: Since 2012 Elmed has been working on a robot specifically designed for flexible ureteroscopy. After the first version of Avicenna Roboflex, second was developed in 2015, with significant changes especially irrigation system. We consider mandatory endourologist that works Roboflex be aware functioning Materials and Methods: connected container to pump’s system measured quantity saline per delivered by each speed setting, with/without flush five different modalities: pump its...

10.4081/aiua.2018.3.155 article EN cc-by-nc Archivio Italiano di Urologia e Andrologia 2018-09-30

Priapism in pediatric patients is a rare entity. We present an 8-year-old boy with known cerebral palsy. He came to the emergency department sustained painful erection for 12 hours. Physical examination showed rigid penis. Blood count and biochemical analysis were normal. Although penile Doppler ultrasound revealed normal arterial venous flow, cavernosal blood gas was hypoxic. A total of 50 mL dark aspirated, 2 0.001% adrenalin solution applied both corpus cavernosum, twice within 20...

10.5489/cuaj.2952 article EN Canadian Urological Association Journal 2015-08-10

Background The human INHA gene encodes the inhibin subunit alpha protein, which is common to both A and B. functional importance of inhibins in male sex development, sexual function, reproduction remain largely unknown. Objective We report for first time two siblings with homozygous mutations. Methods medical files were examined clinical, biochemical, imaging data. Genetic analysis was performed using next-generation Sanger sequencing methods. Results Two brothers complained gynecomastia,...

10.1530/eje-21-1230 article EN cc-by European Journal of Endocrinology 2022-03-02

Objective: To investigate the effect of International Society Urological Pathology (ISUP) grade group 4 (GG4) and ISUP GG5 subgroups according to prostate biopsy on biochemical recurrence (BCR).Materials Methods: Patients who underwent radical prostatectomy (RP) after being diagnosed with GG4 cancer had follow-up data were retrospectively evaluated.Patient obtained from Urologic Cancer Database-Prostate Turkish Urooncology Association.GG4 pathologies evaluated using Gleason subgroups.The...

10.4274/uob.galenos.2024.2023.11.3 article EN Bulletin of Urooncology 2024-03-19
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