Ibrahim Untan

Dr. Ibrahim Untan

orcid

Research Focus & Metrics

Academic Career Length

6Years (2021-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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1 April 2021 in Journal of Pediatric Urology
Verified
Journal Article
Closed access
IUIbrahim Untan
Ibrahim Untan
SÜSultan Üntan
Sultan Üntan
HTHalil Tosun
Halil Tosun
DDDeniz Demirci
Deniz Demirci

28 June 2021 in TURKISH JOURNAL OF MEDICAL SCIENCES
Verified
Journal Article
Open access
ÖYÖmer Ozan Yildizli
Ömer Ozan Yildizli
IUIbrahim Untan
Ibrahim Untan
DDDeniz Demirci
Deniz Demirci
Background/aim: The aim of this study was to establish the relationship between the needle biopsy and the pathology result after radical prostatectomy administrated for prostate cancer. Materials and methods: We retrospectively analyzed 67 patients who had undergone radical prostatectomy from 2016 to 2019. All surgeries and all biopsies were performed in the third author's urology department. Samples were collected through 12-core biopsy under local anesthesia. All specimens were studied in the pathology department of the third author's center. The results evaluated were needle biopsies' Gleason scores and prostatectomy specimens' Gleason scores. Results: Inclusion criteria were not having any neo-adjuvant treatment and being treated with surgery after needle biopsy. Gleason scores obtained from needle biopsies and prostatectomy specimens were evaluated. The comparison revealed that 39% of the tumors were undergraded, 7% were overgraded, and 54% had exact scoring in needle biopsies and prostatectomy specimens according to the detailed Gleason scoring as primary and secondary metrics. The patients were grouped into five categories according to the ISUP 2014 prostate cancer grading system. The relationship was strong with 64% of results staying in the same group after the operation; nevertheless, the correlation remained weak based on the kappa coefficient. Conclusion: The information obtained from the needle biopsy is not a strong herald of the pathological result. Urologists should have awareness of this restraint when utilizing the needle biopsy's Gleason score in decision making and treatment planning.

30 October 2023 in Nigerian Journal of Clinical Practice
Verified
Journal Article
Open access
IUIbrahim Untan
Ibrahim Untan
EEE Ersekerci
E Ersekerci
Foreign bodies in the urethra can occur by self-insertion, and patients often hide the symptoms due to embarrassment. Foreign bodies act as a focus for infection and abscess formation and result in perforation or fistula when not detected on time. Foreign bodies can display symptoms such as frequent urination, dysuria, hematuria, urethrorrhagia, and obstruction. This case discusses a self-inserted urethral sewing needle that was removed cystoscopically from an adolescent.

1 June 2021 in Journal of the College of Physicians and Surgeons Pakistan
Verified
Journal Article
Closed access
VSVolkan Sabur
Volkan Sabur
IUIbrahim Untan
Ibrahim Untan
ATAtila Tatlisen
Atila Tatlisen
Objective: To demonstrate the predictive effect of PSA derivatives and time markers that is prostate-specific antigen (PSA) doubling time (PSADT) and PSA velocity (PSAV) on survival in men with hormone-refractory prostate cancer (HRPCa). Study Design: Descriptive, analytical study. Place and Duration of Study: Department of Urology, Erciyes University, Faculty of Medicine, Kayseri, Turkey, between 2012 and 2020. Methodology: One hundred patients, who were treated with prostate cancer, were subjected. The PSA values were noted, nadir PSA values were detected, times to nadir PSA, HRPCa, and follow-up times were recorded. PSADT and PSAV were calculated. The relationships between the groups were analyzed. Kaplan-Meier curves were used to estimate overall survival between the groups. Results: The patients were grouped according to the mean PSADT, median PSAV, median nadir PSA, and mean time to HRPCA. The survival of those with high PSADT, low PSAV and low nadir PSA were found to be significantly longer (p=0.006, p<0.001, p<0.001). High PSAV was also associated with significantly increased PSA, nadir PSA and death (p<0 001p=0.47, and p<0.001, p=0.52, respectively). The survival of those with a longer time to HPRCa was found to be significantly longer (p<0.001). There was no statistically significant difference in terms of survival between patients who received chemotherapy after HRPCa and those who did not (p=0.477). PSAV (p=0.007 HR: 1.004 95% CI: 1.001 - 1.007), bone metastasis at diagnosis (p=0.001 HR: 0.357 95% CI: 0.197 - 0.645) and time to HRPCa development (p=0.001 HR: 0.936 95% CI: 0.900 - 0.974) were significantly effective to the survival. Conclusion: PSADT, PSAV, and nadir PSA serve as independent prognostic markers for survival in patients with HRPCa. These three PSA derived calculation products, with the help of other parameters, could work as prognostic factors, and help clinicians predict survival in men with HRPCa.

25 October 2023 in Ahi Evran Medical Journal
Verified
Journal Article
Open access
PDF file
IUIbrahim Untan
Ibrahim Untan
MDMümtaz Dadalı
Mümtaz Dadalı
EEErol Erşekerci
Erol Erşekerci
MBMuhammet Şahin Bağbancı
Muhammet Şahin Bağbancı
Purpose: The study aims to reveal the bibliometric analysis and trends of 1616 studies published in the fields of "Urology and COVID-19" since the outbreak of the pandemic. Thus, it is aimed to provide researchers with basic information about the statistical distribution of research on these topics. This study aims to reveal the bibliometric analyzes and trends of 1616 studies published in the “Urology and COVID-19” fields since the pandemic broke out. Thus, it was aimed to provide researchers with basic information about the field of research on these subjects, in which countries it was conducted, and in which journals it was mostly published. Materials and Methods: A bibliometric analysis was conducted on "Urology and COVID-19" for 2020 - 2023 years using the Web of Science Core Collection Database. The results were compared with "Urology" publications of the same period. Trends were also evaluated with different data using free online visualization software (carrot2). Results: A total of 5481 articles cited these studies 13036 times. The most common document type was research article, the most common field was Urology & Nephrology, the most common language was English, the most common journal for the Journal of Urology, the most common publishing country was the United States, and the most common contributing institution was Udice University. Conclusion: This infectious disease, which disrupted the balance of the world, also changed the balance of publications in its favor. Urologists gave more importance to "Urology and COVID-19" research than isolated "Urology" research while fighting against the pandemic.

1 January 2023 in Acta Clinica Croatica
Verified
Journal Article
Open access
PDF file
NANuh Aldemir
Nuh Aldemir
IUIbrahim Untan
Ibrahim Untan
HTHalil Tosun
Halil Tosun
DDDeniz Demirci
Deniz Demirci
Ureteropelvic junction obstruction causes hydronephrosis and may lead to renal parenchymal damage unless timely diagnosed and treated. Although open pyeloplasty is still the gold standard, it needs to be compared with new techniques. In this study,...