Mustafa Yuksel

Top cited articles in urology from Turkey

OBJECTIVE Citation is the name given for a scientific publication in order to be used as a reference by another publication. In this study, we reviewed the most frequently cited publications in urology from Turkey. Although the number of citations is not completely definitive on its own, it shows the importance and effect of the publication. Besides the number of citations directly determines the impact factor of the journals and this factor is generally used in the evaluation of the quality and importance of the journal. MATERIAL AND METHODS On March 7-14, 2016, 51 studies with highest number of citations from Turkey are determined from Science Citation Index Expanded database index and the journals in which studies are published, the authors of the publications, their cities and departments, study types, publication date of the studies and the number of citations are recorded. RESULTS The most frequently encountered subjects in the publications that are mostly cited from Turkey are urolithiasis (23.5%), infertility (15.6%), benign prostatic hyperplasia (11.7%), sexual dysfunction (11.7%) and bladder carcinoma/urothelial carcinoma (9.8%). Distribution of 51 publications is as follows: 18 case series, 11 randomized study, 7 non-randomized study, 6 study, 3 review, 3 cross-sectional studies and 3 survey studies. Of all the studies, 68.6% are from Ankara, İstanbul and İzmir and 72.5% of them have originated from the university hospitals. CONCLUSION It is important to show the most cited Turkish publications in order to show the contribution in the world literature regarding to urology. The most cited publications in Turkey belong to urolithiasis and andrology areas. When the citation analysis publications in urology and different areas both in Turkey and in the world, it is observed that the number of our qualified publications is at acceptable levels.

Factors affecting surgical margin positivity in robotic assisted radical prostatectomy

OBJECTIVES After radical prostatectomy, surgical margin positivity is an important indicator of biochemical recurrence and progression. In our study we want to compare the surgical margin positivity rates for retropubic radical prostatectomy (RRP) and robotic assisted radical prostatectomy (RALP) and investigate the factors affecting surgical margin positivity in RALP. MATERIALS AND METHODS Data from 78 RRP and 62 RALP patients operated from 2011 May to 2016 March were retrospectively screened. Patients in both groups were compared in terms of age, postop hematocrit reduction, hospital stay, duration of follow-up, surgical margin positivity, biochemical recurrence and oncologic parameters. In RALP group it was searched the relationship between the surgical margin positivity and prostate specific antigen (PSA), positive biopsy core, biopsy Gleason scoring, pathologic stage and Gleason scoring, lymph node positivity, lymphovascular and perineural invasion, extracapsular extension, seminal vesicle invasion, prostate weight. RESULTS Patients in the RALP group had lower postop hematocrit reduction and shorter hospital stay (p < 0.001). There was no difference in surgical margin positivity between RALP and RRP groups (37.1% vs. 29.5%, p = 0.341). In RALP group there was a correlation between surgical margin positivity and positive biopsy core number (p = 0.011), pathologic stage (p < 0.001) and Gleason score (p < 0.001), EAU risk classification (p = 0.001), seminal vesicle invasion (p = 0.045), extraprostatic extension (p < 0.001). There was no correlation between prostate weight (p = 0.896), PSA (p = 0.220), biopsy Gleason score (p = 0.266), lymph node positivity (p = 0.140), perineural (p = 0.103) and lymphovascular invasion (p = 0.92) with surgical margin positivity. CONCLUSIONS Positive biopsy core number, pathological stage and Gleason score, EAU risk classification, seminal vesicle invasion and extraprostatic extension are correlated with surgical margin positivity in RALP.

Publication rates of dissertations written in medical faculties of Turkey in the field of urology between the years 2008, and 2011, and citation analysis: A cross-sectional study

OBJECTIVE In our country, preparing dissertation is essential for the research assistants in order to complete their expertise in medicine. It is aimed to produce hypothesis for researchers via writing their dissertations, to collect data for the hypothesis established, to make the analysis and interpretation of these data, and to gain the ability for the comparison of the findings obtained with the literature. In this study, we want to investigate the publication rates and citations of urology dissertations that are written at the university hospitals in our country between 2008 and 2011. MATERIAL AND METHODS Urology dissertations that are written at the university hospitals between 2008 and 2011 were reviewed by entering the website of Board of Higher Education Dissertation between 23-27 March 2017 and 229 dissertations were reported. The publication rates of these dissertations were analysed. RESULTS Hundred and fourteen of 229 dissertations (49.7%) analysed were published. Of these publications, 75 (32.7%) in Science Citation Index Expanded, 24 (10.4%) in international, 15 (6.5%) are published in national indexed peer-reviewed journals. While the publication rate of 81 dissertations written in universities located in 3 metropolitan cities (Istanbul, Ankara, and Izmir) of Turkey was 50.6%, the publication rate of 148 dissertations written in remaining universities was 49.3%; and no statistically significant difference was found between the two groups (p=0.96). CONCLUSION Preparing dissertation is a challenging process that requires considerable effort and time. At the end of this process, it is necessary to publish the dissertation in order to have it reach more people and to contribute to the literature. Even though publication rate of dissertations written in urology at university hospitals in Turkey was at acceptable level, there have still been problems required to solve.

A Rare Clinical Entity in Bladder Cancer: Paraneoplastic Cerebellar Degeneration

Neurologic symptoms according to involvement of the central nervous system in bladder cancer is uncommon. Our knowledge about neurologic symptoms related to paraneoplastic syndrome in bladder cancer is limited. Bladder cancer presenting with paraneoplastic cerebellar degeneration has been reported 4 times in the literature to date. Paraneoplastic neurological syndrome is a rarely seen clinical situation independent of tumor stage thought to develop linked to autoimmunity via antigens released from tumor cells. The most common antibody in paraneoplastic cerebellar degeneration is anti-Yo. For paraneoplastic neurological syndrome treatment the general opinion is for early tumor treatment. We present a 47-year-old male patient with antieYopositive paraneoplastic cerebellar degeneration associated with bladder cancer.