Publications by authors named "Yarkın Kamil Yakupoglu"

Ho: YAG laser lithotripsy is widely used for urinary stone treatment, but concerns persist regarding its thermal effects on renal tissues. This study aimed to monitor intrarenal temperature changes during kidney stone treatment using retrograde intrarenal surgery with Ho: YAG laser. Fifteen patients were enrolled.

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Introduction: This study aimed to identify a precise learning curve for pure retroperitoneoscopic donor nephrectomy (RDN).

Methods: Data from 172 consecutive kidney donors who underwent pure RDN between January 2010 and July 2019 were prospectively collected and evaluated. Cumulative sum (CUSUM) analysis was used for testing the operation time.

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Adherent perinephric fat (APF) is one of the challenging factors of laparoscopic partial nephrectomy (LPN). The aim of this study was to investigate the effect of intraoperative laparoscopic ultrasound (ILUS) on determining renal tumor localization and dissection in patients with APF who underwent LPN. Prospectively collected data from 517 patients who underwent LPN from October 2010 to September 2020 in tertiary university hospital were evaluated retrospectively.

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Partial nephrectomy (PN) is the standard of treatment in patients with cT1 renal tumors. Current guidelines recommend PN as a standard of treatment in patients with cT1 renal tumors. However, the commonly accepted criteria for which surgical outcomes are evaluated both functionally and oncologically are not yet clear.

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The incidence of renal tumor on the allograft kidney is relatively rare. There is no standard treatment available for the management of such cases. However, if technically feasible nephron-sparing surgical approaches, whether open or minimally invasive, should be preferred for the management of these challenging cases.

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Background: Desmoplastic small round cell tumor (DSRCT) is a rare, aggressive neoplasm seen in children and young adults, usually manifested by involvement of abdominal serosa. Here, we present an unusual case of primary DSRCT of kidney.

Case Presentation: The patient was an 8-year-old girl with a large renal mass which was confused with primitive neuroectodermal tumor (PNET) in the needle biopsy.

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A double-pigtail ureteral stent (DPUS) can cause untoward symptoms, such as urgency, frequency, urinary incontinence, hematuria, and body pain that are bothersome to patient's quality of life (QoL). By reducing the quantity of material in the bladder, it could be reasonable to decrease stent-related symptoms (SRSs). We aimed to evaluate the tolerability of single pigtail suture stent (SPSS) with a validated questionnaire after uncomplicated retrograde semirigid ureteroscopic lithotripsy (URSL).

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Considering the increase in a number of vascular complications, right laparoscopic donor nephrectomy is less preferred due to achieving not only shorter renal vein but also longer renal artery. However, recent studies have indicated that the side of the surgery would not affect the outcomes. The aim of this study is to evaluate the outcomes and strategies to increase the safety of pure retroperitoneoscopic donor nephrectomy (RDN).

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Article Synopsis
  • The study evaluated clinical characteristics and Doppler ultrasonography (DUS) results of 44 pediatric patients diagnosed with nutcracker syndrome (NCS) between 2008 and 2015, focusing on symptom associations.
  • Most patients (61.4%) were asymptomatic, often found incidentally during evaluations for proteinuria, while common symptoms included left flank pain and macroscopic hematuria.
  • Statistical analysis revealed significant differences in the left renal vein's diameter and peak velocity ratios between symptomatic and asymptomatic patients, pointing to higher compression in asymptomatic cases linked to orthostatic proteinuria and microscopic hematuria.
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Objective: The objective of this study is to present the experience of 3 institutions performing renal autotransplantation (RAT) and to discuss surgical techniques employed and the results in the light of the medical literature.

Materials And Methods: A total of 14 patients (11 male and 3 female) with a mean age of 47 ± 8 years (35-61 years), who underwent RAT procedure at 3 different institutions between October 2006 and November 2014, in Turkey, were evaluated retrospectively. Indications for RAT procedure are ureteral avulsion, renal artery aneurysm and intimal dissection caused by percutaneous transluminal renal artery angioplasty (PTRA).

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Introduction: The aim of this study was to evaluate the incidence and types of neurological complications (NCs) and associated factors in renal transplantation (RT) patients.

Methods: Three hundred and forty-four patients who had RT performed at our institution between January 2005 and July 2014 were retrospectively evaluated.

Results: File records of the patients revealed 19 who experienced a total of 22 episodes of NCs, of whom three had more than one episode.

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Metanephric adenoma (MA) is an epithelial benign tumor of the kidney and very rare in children. Here we present 2 cases of MA treated by laparoscopic nephron-sparing surgery in children. To the best of our knowledge, we report the first cases of laparoscopic nephron-sparing surgery for MA in children.

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The aim of this study was to analyze the pre- and intraoperative risk factors that affect the development of postoperative systemic inflammatory response syndrome (SIRS) after percutaneous nephrolithotomy (PCNL). Medical records on 317 adult patients with the complete data who underwent single-stage PCNL and followed at our center were retrospectively studied. Patients' data were collected through a database which was collected prospectively.

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Primary testicular leiomyosarcoma is an extremely rare tumor, and, to the best of our knowledge, only 20 cases in adults have been reported in the literature to date. Herein, we present a case of a 68-year-old man who complained of left scrotal swelling for 2 months. Radiological examination revealed a left testicular tumor with no metastases to other organs.

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Objectives: Infectious diseases, even vaccine preventable ones, might affect transplanting and the life course in pediatric solid-organ recipients. Owing to immunosuppression and decreased antibody production, susceptibility to infections is increased in these patients.

Materials And Methods: The present study was designed to assess the vaccination and antibody status of the pediatric renal transplant patients.

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We read with great interest the study report by Ji et al. (Urol Res, doi: 10.1007/s00240-012-0476-0 , 2012) about the impact of the intentional ureteral stenting on the success rate of calculus extraction by second ureteroscopy, when the initial ureteroscopy failed.

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Amyloidosis is the most common and devastating complication of familial Mediterranean fever (FMF). Renal transplantation is the choice of treatment of in most end-stage renal disease (ESRD). We report our experience on the outcomes in eight patients who underwent renal transplantation for ESRD due to FMF secondary to amyloidosis, and we provide a discussion on the current evidence on this topic of study.

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Forgotten ureteral stents represent a difficult problem for urologists; the major complications are infection, migration, encrustation, stone formation, and multifractured stent, and a consensus on the best therapeutic approach is lacking. Here we present our experience with endoscopic management of this challenging problem and discuss the various endourological approaches for treating forgotten encrusted ureteral stents. From January 2005 to December 2010, 19 patients (11 women and 8 men) with encrusted ureteral stents were retrospectively analyzed.

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Cystic hydatid disease is an endemic disease caused by the larval form of Echinococcus spp. Isolated renal involvement is extremely rare. The treatment methods for renal hydatid disease require some form of intervention, ranging from traditional open techniques to laparoscopic techniques.

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Objectives: We wanted to show early and late biochemical, histopathological, and apoptotic changes caused by unilateral spermatic cord torsion in ipsilateral and contralateral testicles and the effect of the poly (adenosine triphosphate-ribose) polymerase (PARP) inhibitor, nicotinamide, on these changes in early and late periods.

Materials And Methods: Forty-seven Wistar albino rats were divided into 2 major groups as early and late periods. Subsequently, each group was divided into subgroups as control, sham, torsion-detorsion (TD), TD treated with saline (TDS), and TD treated with nicotinamide (TDN).

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Background: The prognosis of hemophagocytic syndrome (HPS) in kidney transplant recipients is reported to be poor, however the optimal therapeutic approach is still unclear.

Patients And Methods: The clinical and follow-up data of the 4 patients with HPS (3 male, 1 female; age 39.7 +/- 11.

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