Wos İndeksli Yayınlar Koleksiyonu
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Item Impact Of Varicocele Repair On Semen Parameters In Infertile Men: A Systematic Review And Meta-Analysis(2023) Ceyhan, Erman; 36326166Purpose: Despite the significant role of varicocele in the pathogenesis of male infertility, the impact of varicocele repair (VR) on conventional semen parameters remains controversial. Only a few systematic reviews and meta-analyses (SRMAs) have evaluated the impact of VR on sperm concentration, total motility, and progressive motility, mostly using a before-after analytic approach. No SRMA to date has evaluated the change in conventional semen parameters after VR compared to untreated controls. This study aimed to evaluate the effect of VR on conventional semen parameters in infertile patients with clinical varicocele compared to untreated controls.Materials and Methods: A literature search was performed using Scopus, PubMed, Embase, and Cochrane databases following the Population Intervention Comparison Outcome (PICOS) model (Population: infertile patients with clinical varicocele; Intervention: VR [any technique]; Comparison: infertile patients with clinical varicocele that were untreated; Outcome: sperm concentration, sperm total count, progressive sperm motility, total sperm motility, sperm morphology, and semen volume; Study type: randomized controlled trials and observational studies).Results: A total of 1,632 abstracts were initially assessed for eligibility. Sixteen studies were finally included with a total of 2,420 infertile men with clinical varicocele (1,424 patients treated with VR vs. 996 untreated controls). The analysis showed significantly improved post-operative semen parameters in patients compared to controls with regards to sperm concentration (standardized mean difference [SMD] 1.739; 95% CI 1.129 to 2.349; p<0.001; I2=97.6%), total sperm count (SMD 1.894; 95% CI 0.566 to 3.222; p<0.05; I2=97.8%), progressive sperm motility (SMD 3.301; 95% CI 2.164 to 4.437; p<0.01; I2=98.5%), total sperm motility (SMD 0.887; 95% CI 0.036 to 1.738; p=0.04; I2=97.3%) and normal sperm morphology (SMD 1.673; 95% CI 0.876 to 2.470; p<0.05; I2=98.5%). All the outcomes showed a high inter-study heterogeneity, but the sensitivity analysis showed that no study was sensitive enough to change these results. Publication bias was present only in the analysis of the sperm concentration and progressive motility. No significant difference was found for the semen volume (SMD 0.313; 95% CI-0.242 to 0.868; I2=89.7%).Conclusions: This study provides a high level of evidence in favor of a positive effect of VR to improve conventional semen parameters in infertile men with clinical varicocele. To the best of our knowledge, this is the first SRMA to compare changes in conventional semen parameters after VR with changes in parameters of a control group over the same period. This is in contrast to other SRMAs which have compared semen parameters before and after VR, without reference to a control group. Our findings strengthen the available evidence and have a potential to upgrade professional societies' practice recommendations favoring VR to improve conventional semen parameters in infertile men.Item Consensus and Diversity in the Management of Varicocele for Male Infertility: Results of a Global Practice Survey and Comparison with Guidelines and Recommendations(2023) Ceyhan, Erman; Magsanoc, Nikko; 35791302Purpose: Varicocele is a common problem among infertile men. Varicocele repair (VR) is frequently performed to improve semen parameters and the chances of pregnancy. However, there is a lack of consensus about the diagnosis, indications for VR and its outcomes. The aim of this study was to explore global practice patterns on the management of varicocele in the context of male infertility. Materials and Methods: Sixty practicing urologists/andrologists from 23 countries contributed 382 multiple-choice-questions pertaining to varicocele management. These were condensed into an online questionnaire that was forwarded to clinicians involved in male infertility management through direct invitation. The results were analyzed for disagreement and agreement in practice patterns and, compared with the latest guidelines of international professional societies (American Urological As-sociation [AUA], American Society for Reproductive Medicine [ASRM], and European Association of Urology [EAU]), and with evidence emerging from recent systematic reviews and meta-analyses. Additionally, an expert opinion on each topic was provided based on the consensus of 16 experts in the field. Results: The questionnaire was answered by 574 clinicians from 59 countries. The majority of respondents were urologists/ uro-andrologists. A wide diversity of opinion was seen in every aspect of varicocele diagnosis, indications for repair, choice of technique, management of sub-clinical varicocele and the role of VR in azoospermia. A significant proportion of the re-sponses were at odds with the recommendations of AUA, ASRM, and EAU. A large number of clinical situations were identi-fied where no guidelines are available. Conclusions: This study is the largest global survey performed to date on the clinical management of varicocele for male in-fertility. It demonstrates: 1) a wide disagreement in the approach to varicocele management, 2) large gaps in the clinical prac-tice guidelines from professional societies, and 3) the need for further studies on several aspects of varicocele management in infertile men.Item Comprehensive Analysis of Global Research on Human Varicocele: A Scientometric Approach(2022) Ceyhan, Erman; https://orcid.org/0000-0001-8223-6399; 35118839; ABI-2513-2020Purpose: This study provides a comprehensive analysis of research trends on the etiology, mechanisms, potential risk factors, diagnosis, prognosis, surgical and non-surgical treatment of varicocele, and clinical outcomes before and after varicocele repair. Materials and Methods: Varicocele studies published between 1988 and 2020 were retrieved from the Scopus database on April 5, 2021. Original studies on human varicocele were included, irrespective of language. Retrieved articles were manually screened for inclusion in various sub-categories. Bibliometric data was subjected to scientometric analysis using descriptive statistics. Network, heat and geographic mapping were generated using relevant software. Results: In total, 1,943 original human studies on varicocele were published. These were predominantly from the northern hemisphere and developed countries, and published in journals from the United States and Germany. Network map analysis for countries showed several interconnected nodal points, with the USA being the largest, and Agarwal A. from Cleveland Clinic, USA, being a center point of worldwide varicocele research collaborations. Studies of adolescents were underrepresented compared with studies of adults. Studies on diagnostic and prognostic aspects of varicocele were more numerous than studies on varicocele prevalence, mechanistic studies and studies focusing on etiological and risk factors. Varicocele surgery was more investigated than non-surgical approaches. To evaluate the impact of varicocele and its treatment, researchers mainly analyzed basic semen parameters, although markers of seminal oxidative stress are being increasingly investigated in the last decade, while reproductive outcomes such as live birth rate were under-reported in the literature. Conclusions: This study analyzes the publication trends in original research on human varicocele spanning over the last three decades. Our analysis emphasizes areas for further exploration to better understand varicocele's impact on men's health and male fertility.Item Variations in the Number of Patients Presenting With Andrological Problems During the Coronavirus Disease 2019 Pandemic and the Possible Reasons for These Variations: A Multicenter Study(2021) Duran, Mesut Berkan; Yildirim, Omer; Kizilkan, Yalcin; Tosun, Cagatay; Cirakoglu, Abdullah; Gultekin, Mehmet Hamza; Gul, Umit; Altan, Mesut; Sah, Cem; Hasirci, Eray; Ceyhan, Erman; Ongun, Sakir; Turunc, Tahsin; 0000-0003-3249-0895; 0000-0002-4147-2966; 0000-0001-8223-6399; 33318798; AAK-8394-2021; AAI-7997-2021; ABI-2513-2020Introduction: Coronavirus disease 2019 (COVID-19) pandemic caused unprecedented restrictions in outpatient services and surgical practices in urology as in other medical branches as well as in all areas of life. Aim: To investigate whether there have been variations in the presentations of male patients with sexual and reproductive health problems to the outpatient urology clinics during the COVID-19 pandemic and to understand the underlying factors for these variations, if any. Methods: Male patients aged >= 18 years who presented to the outpatient urology clinics in 12 centers across Turkey from February 1, 2020 to June 1, 2020 were retrospectively evaluated. The patients were divided into 2 groups: those who presented to the outpatient clinic from February 1, 2020 to March 11, 2020 comprised the "pre-COVID-19 pandemic period" group, whereas those who presented to the outpatient clinic from March 12, 2020 to June 1, 2020 comprised the "COVID-19 pandemic period" group and compared with each other. Main Outcome Measures: The main outcome of this study was the number and diagnose of patients presented to urology outpatient clinics. Results: Andrological problems were detected in 721 of 4,955 male patients included in the study. During the COVID-19 pandemic period, there was a significant increase in andrological diagnosis in these patients compared with the pre-COVID-19 pandemic period (n = 293 [17%] vs n = 428 [13.2%], P < .001, respectively). Similarly, there was a statistically significant increase in the number of patients diagnosed with male reproductive or sexual health problems during the COVID-19 pandemic period (n = 107 [6.2%] vs n = 149 [4.6%], P = .016 and n = 186 [10.8%] vs n = 279 [8.6%], P = .013, respectively). The number of patients diagnosed with erectile dysfunction during the pandemic was also significantly higher than the pre-COVID-19 pandemic period (n = 150 [8.7%] vs n = 214 [6.6%], P = .008). Conclusion: Presentations to the outpatient urology clinics owing to andrological problems markedly increased during the pandemic period. Although these problems are of multifactorial origin, psychogenic factors are also considered to significantly trigger these problems. Copyright (C) 2020, The Authors. Published by Elsevier Inc. on behalf of the International Society for Sexual Medicine.Item Pathology associated with adherent perirenal fat and its clinical effect(2021) Ceyhan, Erman; Ileri, Fatih; Aki, Fazil Tuncay; Yazici, Mustafa Sertac; Karcaaltincaba, Musturay; Ertoy Baydar, Dilek; Bilen, Cenk Yucel; 0000-0001-8223-6399; 34120392; ABI-2513-2020Introduction The dissection of perirenal fat is of critical importance to kidney surgery and ease of dissection is more important when using minimally invasive approaches. This study aimed to determine the clinical, radiological, and pathological significance of adherent perirenal fat (APF). Materials and Methods This prospective study included 22 patients scheduled for partial nephrectomy and 40 patients for donor nephrectomy. Intraoperative fat dissection time was recorded, and the complexity of perirenal fat dissection was surgeon-classified as easy, moderate, and difficult. Perirenal fat and subcutaneous fat thickness were measured. Measurement of perirenal fat depth and the Hounsfield unit (HU) for both perirenal and subcutaneous fields were performed using computed tomography (CT) images. All specimens were submitted for histopatological analysis. Researchers in each arm were blinded to other researchers' data. Results Mean age of the patients was 51.3 +/- 12.7 years. Mean perirenal fat dissection time was 15.0 +/- 13.5 minutes. Patient demographics, BMI, nor occupational status differed between the 3 complexity of perirenal fat dissection groups. Radiological findings showed that there was a significant correlation between perirenal fat depth and complexity of perirenal fat dissection (P < .05), but not with HU measurements or subcutaneous fat thickness. Surgeon classification of the complexity of perirenal fat dissection was in accordance with the duration of dissection (P < .05). Perinephric fat contained more fibrous tissue in the patients with histologically proven APF than in those without (P < .05). Conclusions APF is a challenge during kidney surgery. Difficult dissection prolongs the duration of perirenal fat dissection and surgery. Perirenal fat thickness measured via preoperative CT might be used to predict APF.Item Ability of ESWL nomograms to predict stone-free rate in children(2021) Ceyhan, Erman; Ozer, Cevahir; Ozturk, Bulent; Tekin, Mehmet Ilteris; Aygun, Yuksel Cem; 0000-0001-8223-6399; 0000-0002-6232-4313; 0000-0002-7850-6912; 33867289; ABI-2513-2020; AAM-3015-2021; AAM-2222-2020Introduction We aimed to evaluate whether the pediatric extracorporeal shock wave lithotripsy (ESWL) nomograms can predict stone-free status in children effectively and whether they are applicable to our series. We hypothesize that two current nomograms predicting successful treatment with ESWL in pediatric patients are valid. Study design We evaluated 415 renal units (children <18 years) with eligible data who received ESWL treatment for upper urinary tract stones. Children's age, gender, stone size, stone surface area, stone location and history of previous intervention were recorded. Children with no residual fragments after ESWL treatment were designated as stone-free. The nomograms described by Dogan and Onal were implemented to our series for the prediction of stone-free status. Results Mean age of children was 64.7 +/- 57.2 months. Male to female ratio was 219:196.78.8% (327) of children had single stone. Mean stone size was 10.0 +/- 3.7 mm and mean stone surface area was 380.0 +/- 72.2 mm(2). Our stone-free rate after single ESWL session was 52.5% (218/415). Mean residual stone size and stone surface area after single session was 6.4 +/- 3.3 mm and 36.0 +/- 44.2 mm(2) respectively. There were no significant difference between stone-free children and children with residual fragments regarding gender, age and history of previous intervention. Mean stone size and stone surface area in stone-free children were lower and lower pole stones had the lowest stone-free rate (p < 0.05). Area under curve for Dogan and Onal nomogram were 0.628 and 0.580 respectively in ROC analysis (0.05). The agreement between Dogan and Onal score was moderate in our series. In multivariate analysis only stone surface area and Dogan score found to be independent predictors of stone-free status (p < 0.05). Discussion Only one study has assessed both nomograms in the literature. Both nomograms are reported to be independent predictors of stone free status. ROC analysis in our study revealed fair accuracy for both nomograms with higher area under curve for Dogan nomogram. Higher accuracy for both nomograms were reported by other authors. These nomograms offer practical data but more effective tools are needed to be developed for the prediction of stone-free status in pediatric ESWL. Conclusions Stone size and stone surface area are associated with stone clearance. Dogan and Onal nomograms can be useful in prediction of stone-free status in children. Dogan nomogram is superior to Onal nomogram. [GRAPHICS]Item Standardization for reliable uroflowmetry testing in adults(2020) Ceyhan, Erman; Asutay, Mehmet K.; 0000-0001-8223-6399; 32455493; ABI-2513-2020Objectives To assess if a standard hydration protocol will achieve voided volumes over 150 mL and more reliable uroflowmetry results. Methods This is a single-blinded crossover study of 40 patients with benign prostatic obstruction and 34 healthy volunteers. Subjects were enrolled prospectively between January and March 2019. All subjects performed two randomly ordered uroflowmetry tests. One test was performed when subjects sensed their bladder was full and had the urge to void and another one after emptying the bladder and ingesting 1.5 L of water within 1 hour (prehydration). Uroflowmetry parameters were compared between the benign prostatic obstruction group and the healthy volunteers. Uroflowmetry results were categorized as reliable, residual, and suboptimal with respect to voided volumes. This study has been registered in the UMIN Clinical Trials Registry (UMIN000035446). Results The benign prostatic obstruction group and the healthy volunteer group presented no difference in respect of uroflowmetry test reliability (P = .459). Uroflowmetry results were reliable in 58 (78.4%) subjects in the prehydrated group and was reliable in 30 (40.5%) subjects in the non-prehydrated group. The difference was statistically significant (P < .05). In the benign prostatic obstruction group and healthy volunteer group, the rate of reliable uroflowmetry tests was significantly higher with prehydration (P < .05). The comparative analysis of uroflowmetry parameters between tests performed with and without prehydration revealed higher values in the prehydrated group (voided volume, maximum flow rate, average flow rate, and postvoiding residual volume; P < .05). Conclusion Prehydration of patients with 1.5 L of water within 1 hour before uroflowmetry improves uroflowmetry outcomes. By this hydration protocol, the chance to obtain a voided volume over 150 mL is increased significantly.Item Our experience on management of failed pediatric pyeloplasty(2020) Ceyhan, Erman; Dogan, Hasan Serkan; Tekgul, Serdar; 0000-0001-8223-6399; 32542506; ABI-2513-2020Purpose The purpose of the study was to assess the outcomes of salvage procedures after failed pediatric pyeloplasty. Recurrent ureteropelvic junction obstruction treatment is a difficult course. The salvage surgery is more challenging in the pediatric population. We aimed to assess the outcomes of salvage procedures after failed pediatric pyeloplasty to determine the most efficient surgical intervention. Methods 40 children with 41 renal units who have been treated for recurrent ureteropelvic junction obstruction after pyeloplasty were analyzed retrospectively. The outcomes of all initial and sequent interventions were assessed including redo pyeloplasty, endopyelotomy and balloon dilatation. Results Children's mean age at initial intervention for failed pyeloplasty was 45.9 (+/- 46.4) months. Our mean follow-up time after the initial intervention was 46.9 (+/- 46.6) months. The success rate of our initial treatment methods was 48.7% (20/41). Although redo pyeloplasty was the most successful intervention (83.3%) than DJS placement (45.5%), endopyelotomy (50%) and balloon dilatation (30.8%), the statistical difference was not significant in the initial operations. The overall success rates of redo pyeloplasty, double-J stent placement, endopyelotomy and balloon dilatation were 78.9%, 46.1%, 38.8% and 29.4%, respectively (p < 0.05). Conclusions Redo pyeloplasty provides the best improvement in recurrent ureteropelvic junction obstruction in children. In selected patients, minimal invasive methods such as endopyelotomy and balloon dilatation offer alternative treatment.Item Nation-wide analysis of the impact of Covid-19 pandemic on daily urology practice in Turkey(2020) Ceyhan, Erman; 0000-0001-8223-6399; 32996259; ABI-2513-2020Objective To present a nation-wide analysis of the workload of urology departments in Turkey week-by-week during Covid-19 pandemic. Methodology The centres participating in the study were divided into three groups as tertiary referral centres, state hospitals and private practice hospitals. The number of outpatients, inpatients, daily interventions and urological surgeries were recorded prospectively between 9-March-2020 and 31-May-2020. All these variables were recorded for the same time interval of 2019 as well. The weekly change of the workload of urology during pandemic period was evaluated, also the workload of urology and the distributions of certain urological surgeries were compared between the pandemic period and the same time interval of the year 2019. Results A total of 51 centres participated in the study. The number of outpatients, inpatients, urological surgeries and daily interventions were found to be dramatically decreased by the 3rd week of pandemics in state hospitals and tertiary referral centres; however, the daily urological practice were similar in private practice hospitals throughout the pandemic period. When the workload of urology in pandemic period and the same time interval of the year 2019 were compared, a huge decrease was observed in all variables during pandemic period. However, temporary measures like ureteral stenting, nephrostomy placement and percutaneous cystostomy have been found to increase during Covid-19 pandemic compared with normal life. Conclusions Covid-19 pandemic significantly affected the routine daily urological practice likewise other subspecialties and priority was given to emergent and non-deferrable surgeries by urologists in concordance with published clinical guidelines.