Browsing by Author "Eryilmaz, R."

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Clinicopathological Features and Survival Data of Localized Renal Masses in Young Adults
(Asian Pacific Organization for Cancer Prevention, 2018) Aslan, R.; Taken, K.; Eryilmaz, R.
Purpose: Renal tumors are rarely seen in young adults. In this study, was aimed to report the data of 18-40 years old patients with Renal Cell Carcinoma (RCC) whom we operated. Material and Method: We retrospectively reviewed the data of patients between the ages of 18 and 40 years old patients who have renal masses. All patients were evaluated with chest X-ray, Computed tomography (CT) and/or MRI. Radical or partial nephrectomy was performed for clinical localized masses with malignancy suspicion. Clinicopathological features and survival data of all the patients were recorded. In the follow-up protocol routine blood tests, chest X-ray and abdominal CT were used. Results: A total of 42 patients, [22 (52.4%) male and 20 (47.6%) female], with a mean age of 34.48 (range 18 to 40) were included in the study. Of these, 32 (%76) had RCC and 10 (24%) had benign pathologies. Female patients had more benign pathology (35% vs 13.6%). The most commonly subtype of RCC (n = 22% 69) was clear cell RCC (cRCC), while the most common benign mass was oncocytoma (n = 4% 40). At the mean follow-up period of 42.34 months, overall survival rate was found to be 93.8%. Conclusion: Young adults with localized renal mass have benign pathology in a considerable rate. All of the malign masses in this population have low Furhman grade (1 or 2). © 2018 Asian Pacific Organization for Cancer Prevention.
Comparative Analysis of the Accuracy and Readability of the Answers Given by ChatGPT, Deepseek and Gemini Artificial Intelligences about Penile Body Dysmorphic Disorder
(Yuzuncu Yil University Tip Fakultesi, 2026) Demir, M.; Kotan, M.; Sarıhan, M.H.; Ertas, K.; Aslan, R.; Eryilmaz, R.; Taken, K.
This study contrasts the validity and legibility of responses of three computer algorithms—ChatGPT, DeepSeek, and Gemini to Penile Body Dysmorphic Disorder (BDD), where individuals are concerned with penis size. As individuals more and more rely on AI to seek health knowledge, this research contrasts the validity and readability of AI-generated responses to common penile size and function questions. Fourteen frequently asked questions about penis size and function were collected from social media and posed to ChatGPT, DeepSeek, and Gemini. Responses were evaluated with the Discern index to evaluate reliability and the Gunning Fog index to measure readability. For statistical analysis one-way ANOVA and one-way ANOVA and Post hoc tests were used. There was no significant difference between three algorithms (p=0.063), and the distinct scores for ChatGPT, DeepSeek, and Gemini were 3.29±1.07, 3.86±0.66, and 3.43±0.85. In comparison to DeepSeek (19.81±1.88) and Gemini (20.07±2.37), ChatGPT produced a significantly lower Gunning Fog score of 18.34±1.72 (p=0.012), suggesting that ChatGPT responses were easier to read. The study found all three AI models provided accurate and informative content about Penile BDD, where DeepSeek provided the most precise and ChatGPT the easiest to read. However, AI should never replace expert m edical recommendations. Continuous improvement and ethical reasoning are required to ensure safe application of AI for health information. © 2026, Yuzuncu Yil Universitesi Tip Fakultesi. All rights reserved.
Comparison of Focused and Unfocused Eswt in Treatment of Erectile Dysfunction
(Taylor and Francis Ltd., 2020) Eryilmaz, R.; Kaplan, Ş.; Aslan, R.; Demir, M.; Taken, K.
Recently, extracorporeal shock wave therapy (ESWT) is more commonly used in noninvasive treatment of erectile dysfunction (ED). There is no definitive treatment protocol on the use of ESWT. In this study, we aimed to compare focused and unfocused ESWT in ED. We created two groups, each including 20 patients with similar demographics. Focused ESWT is performed in one group, while unfocused ESWT is performed for the other group. Patients are assessed with IIEF-5 and EHS. Mean score of IIEF-5 was increased by 6.3 ± 3.3 (p <.05) from 9.6 ± 2.9 to 15.0 ± 5.0 in 3-month follow-up in the unfocused group. In the focused group, IIEF-5 score increased by 5.34 in average from 10.01 ± 2.5 to 15.4 ± 3.1. In conclusion, IIEF-5 score was significantly higher in the unfocused ESWT group than the focused ESWT group. © 2019 Informa UK Limited, trading as Taylor & Francis Group.
Comparison of Super Mini Percutaneous Nephrolithotomy (SMPCNL) and Extracorporeal Shock Wave Lithotripsy (ESWL) in Pediatric 1-2 Cm Kidney Stones: A Single-Center Retrospective Controlled Study
(Urology and Nephrology Research Centre, 2026) Sevim, M.; Demir, M.; Eryilmaz, R.; Aslan, R.; Ertaş, K.; Taken, K.
Purpose: To compare outcomes of super mini percutaneous nephrolithotomy (smPCNL) with extracorporeal shock wave lithotripsy (ESWL) for stones 1-2 cm. Material and Methods: After receiving the ethics committee approval for this study (Date: 10/09/2021 Decision No: 2021/10-01), the files of patients who underwent smPCNL and ESWL for kidney stones between January 2017 and June 2021 by the Urology Department of Van YYU Dursun Odabaşı Medical Center were retrospectively scanned. A total of 300 patients' data were scanned retrospectively. After exclusion criteria and ESWL patients whose sessions were not completed were excluded, a total of 159 patients, 82 ESWL and 77 smPCNL, were included in our study. Results: The mean age in the ESWL group was 6.72±3.71, and the mean age in the smPCNL group was 6.63±3.59 (1-18). There was no significant difference in age profile between the groups (p=.87). Regarding the direction of the stone procedure in the smPCNL group, the procedure was performed on the right side in 42 patients (54.54%) and on the left side in 35 patients (45.46%). In the ESWL group, the procedure was performed on the right side in 38 patients (46.35%) and on the left side in 44 patients (53.65%). No statistically significant difference was found between the groups in terms of side direction (p=.38). The mean BMI(Body Mass Index) in the ESWL group was 20.10±2.01, while it was 20.23±2.05 in the smPCNL group. No statistically significant difference was observed between two groups in terms of BMI (p=.68). The mean stone size in the ESWL group was calculated as 13.74±1.91 mm (10-20 mm) and 149.75±45.46 mm², which would provide more accurate results. The mean value in the smPCNL group was 14.064±2.6 mm (10-20 mm) and 150.879±50.34 mm². No statistically significant difference was found between the groups in terms of stone size (p=(mm)=.37, p=(mm²)=.88). Among 82 patients treated with ESWL, 21 (25.6%) were stone-free after the first session, increasing to 40 (48.8%) by the end of the second session and to 50 (61.0%) at the end of the third session. In terms of sedo-analgesia, 19 (23.20%) were exposed to 1 session, 16 (19.5%) were exposed to 2 sessions, and 31 (37.80%) were exposed to 3 sessions. 16 (19.5%) patients did not receive anesthesia. When evaluated in terms of the need for re-intervention, it was observed as 22 patients (26.8%) in the ESWL group and 4 patients (5.2%) in the smPCNL group (p=.0003). In the comparison of stone-free rate of smPCNL and ESWL groups, a statistically significant difference was observed in both early and late periods (p=.001). When comparing the early and late periods of smPCNL (p=.79) and ESWL(p=.19) within their own groups, no statistical difference was observed. When smPCNL and ESWL were classified according to the Clavien-Dindo classification in terms of complications, no statistically significant difference was observed (p=.51). Conclusion: ESWL remains the preferred first-line option for many pediatric patients due to its safety and non-invasive nature. However, smPCNL provides higher single-session stone-free rates for 10–20 mm renal stones and may reduce repeated anesthesia exposure. SmPCNL should be considered a viable first-line alternative to achieve higher stone-free rates without increasing complication risk. Prospective, multicenter randomized trials are warranted. © 2026, Urology and Nephrology Research Centre. All Rights Reserved.
Fluoroscopy Free Flexible Ureteroscopy: the Report of 248 Cases
(Yuzuncu Yil Universitesi Tip Fakultesi, 2023) Taken, K.; Eryilmaz, R.; Aslan, R.; Ertaş, K.; Demir, M.; Deniz, B.; Duran, A.M.
The goal of this study was to assess the results of 248 patients who underwent fluoroscopy-free retrograde intrarenal surgery. Between January 2017 and March 2020, 248 cases of retrograde intrarenal surgery (RIRS) were conducted using an access sheath and guidewire. Using ureteroscopy, two hydrophilic guide wires were inserted into the renal pelvis under direct eyesight (URS). When the ureter could not be entered with the 9.5 Fr URS, the ureter was first entered using the 7.5 Fr URS. Then, without flouroscopy, an access sheath was pushed u p to the proximal ureter while examining the opening with URS. When an access sheath could not be placed, a double J stent was implanted. The operation was repeated after 3 weeks. The procedure's success rate was determined by the absence of stones or the presence of leftover fragments smaller than 3 mm. The study included 161 (64.9%) male and 87 (35.1%) female patients with a mean age of 44.03 (± 16.04), (range 18-81) years. Mean stone size was 14.7 (± 3.7) mm. The mean operation time was 62.34 (± 8.2) minutes. Stone-free rate was 88.7% (n: 220). 28 of the patients had residual stone. Twenty patients (8%) had minor complications, including hematuria and fever and in 2 patients (0.8%) subcapsular hematoma was developed. Kidney stones can be treated successfully with minimal morbidity and mortality. The insertion of an access sheath under urs guidance is possible without the need of fluoroscopy. Patients and surgeons are exposed to less radiation as a result of this procedure. © 2023, Yuzuncu Yil Universitesi Tip Fakultesi. All rights reserved.
A Prospective Analysis of the Efficacy and Safety of Caudal Block for Transrectal Ultrasound Guided Prostate Biopsy in Patients With Anorectal Disorders
(Yuzuncu Yil Universitesi Tip Fakultesi, 2024) Aslan, R.; Günes, H.Y.; Erbin, A.; Eryilmaz, R.; Sevim, M.; Ertaş, K.; Taken, K.
In this study, the efficacy and safety of the caudal block technique for transrectal ultrasonography-guided biopsy (Trus-guided biopsy) in patients with anorectal problems were investigated. A total of 31 consecutive patients with anal-rectal problems underwent prostate needle biopsy. All patients included in the study were examined by an experienced general surgeon, and the presence of anorectal problems was confirmed. The majority of patients (61%) were referred from the outer center to our clinic beca use a biopsy could not be performed due to severe pain felt during rectal probe insertion despite local anesthesia (topical prilocaine or lidocaine cream). A 12-core biopsy protocol was applied to all patients under the caudal block. Pain perception was se parately assessed during caudal anesthesia, probe insertion, and sampling stages using a visual analog scale (VAS) score. The mean age was 64.1 ± 9.1 years. The mean VAS score during caudal anesthesia was 1.8 ± 0.81. At probe insertion, the mean VAS score was 1,44 ± 012. During the needle penetration into prostate tissue and sampling, the mean VAS score was 2.44± 013. All of the patients did not state any bothersome pain at any stage. We did not find any complications related to the anesthesia method. Topical creams and/or periprostatic nerve block (PNB) do not provide adequate analgesia in patients with anorectal disorders undergoing Trus-guided biopsy. Caudal block technique can be performed effectively and reliably in this selected patient group. © 2024, Yuzuncu Yil Universitesi Tip Fakultesi. All rights reserved.