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COŞKUN, BURHAN

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COŞKUN

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BURHAN

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    Publication
    Investigation of infectious droplet dispersion in a hospital examination room cooled by split-type air conditioner
    (Springer, 2024-05-08) Yüce, Bahadir Erman; Kalay, Onur Can; Karpat, Fatih; Alemdar, Adem; Temel, Şehime Gülsün; Dilektaşlı, Aslı Görek; Başkan, Emel Bülbül; Özakın, Cüneyt; Coşkun, Burhan; YÜCE, BAHADIR ERMAN; Kalay, Onur Can; KARPAT, FATİH; ALEMDAR, ADEM; TEMEL, ŞEHİME GÜLSÜN; GÖREK DİLEKTAŞLI, ASLI; BÜLBÜL BAŞKAN, EMEL; ÖZAKIN, CÜNEYT; COŞKUN, BURHAN; Bursa Uludağ Üniversitesi/Yenişehir İbrahim Orhan Meslek Yüksekokulu/İklimlendirme ve Soğutma Teknolojisi Bölümü.; Bursa Uludağ Üniversitesi/Mühendislik Fakültesi/Makine Mühendisliği Bölümü.; Bursa Uludağ Üniversitesi/Sağlık Bilimleri Enstitüsü.; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Tıbbi Genetik Anabilim Dalı.; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Histoloji ve Embriyoloji Anabilim Dalı.; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Göğüs Hastalıkları Anabilim Dalı.; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Dermatoloji Anabilim Dalı.; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Enfeksiyon Hastalıkları ve Mikrobiyoloji Anabilim Dalı.; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Üroloji Anabilim Dalı.
    The novel coronavirus (SARS-CoV-2) outbreak has spread worldwide, and the World Health Organization (WHO) declared a global pandemic in March 2020. The transmission mechanism of SARS-CoV-2 in indoor environments has begun to be investigated in all aspects. In this regard, many numerical studies on social distancing and the protection of surgical masks against infection risk have neglected the evaporation of the particles. Meanwhile, a 1.83 m (6 feet) social distancing rule has been recommended to reduce the infection risk. However, it should be noted that most of the studies were conducted in static air conditions. Air movement in indoor environments is chaotic, and it is not easy to track all droplets in a ventilated room experimentally. Computational Fluid Dynamics (CFD) enables the tracking of all particles in a ventilated environment. This study numerically investigated the airborne transmission of infectious droplets in a hospital examination room cooled by a split-type air conditioner with the CFD method. Different inlet velocities (1, 2, 3 m/s) were considered and investigated separately. Besides, the hospital examination room is a model of one of the Bursa Uludag University Hospital examination rooms. The patient, doctor, and some furniture are modeled in the room. Particle diameters considered ranged from 2 to 2000 mu m. The evaporation of the droplets is not neglected, and the predictions of particle tracks are shown. As a result, locations with a high infection risk were identified, and the findings that could guide the design/redesign of the hospital examination rooms were evaluated.
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    Effect of operation timeline on frequency of surgical complication in deceased donor kidney transplantation
    (Frontiers Media SA, 2019-10-01) Ersoy, Alparslan; Düger, Hakan; Dizdar, Oğuzhan Sıtkı; Yıldız, Abdülmecit; Akgür, Suat; Kaygısız, Onur; Oruç, Ayşegul; Ünsal, Oktay; Coşkun, Burhan; Kordan, Yakup; Türker, Gürkan; Vuruşkan, Hakan; ERSOY, ALPARSLAN; Düger, Hakan; Dizdar, Oğuzhan Sıtkı; YILDIZ, ABDULMECİT; AKGÜR, SUAT; KAYGISIZ, ONUR; ORUÇ, AYŞEGÜL; Ünsal, Oktay; COŞKUN, BURHAN; Kordan, Yakup; TÜRKER, YUNUS GÜRKAN; VURUŞKAN, HAKAN; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Dahiliye Anabilim Dalı/Nefroloji Bilim Dalı.; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Dahiliye Anabilim Dalı.; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Üroloji Anabilim Dalı.; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Anestezi ve Reanimasyon Anabilim Dalı.; 0000-0001-5478-3192; 0000-0002-9790-7295; 0000-0002-0342-9692; 0000-0002-8242-9921; 0000-0002-9947-848X; 0000-0002-3019-581X; AAM-9726-2020; AAH-5054-2021; AAI-6642-2021; AAH-4002-2021; IZP-9361-2023; AAH-9704-2021; BBE-2157-2022; HIG-9032-2022; EJA-1761-2022; JJY-8484-2023; AAH-9704-2021; GAF-0095-2022; EFH-9523-2022
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    Prognostic value of estrogen receptors in patients who underwent prostatectomy for non-metastatic prostate cancer
    (Spandidos Publ Ltd, 2023-02-01) Aydın, Yavuz Mert; Şahin, Ahmet Bilgehan; Dölek, Rabia; Vuruşkan, Berna Aytaç; Ocakoğlu, Gökhan; Vuruşkan, Hakan; Yavaşçaoğlu, İsmet; Coşkun, Burhan; AYDIN, YAVUZ MERT; ŞAHİN, AHMET BİLGEHAN; DÖLEK, RABİA; AYTAÇ VURUŞKAN, BERNA; OCAKOĞLU, GÖKHAN; VURUŞKAN, HAKAN; YAVAŞCAOĞLU, İSMET; COŞKUN, BURHAN; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Üroloji Anabilim Dalı.; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Tıbbi Onkoloji Anabilim Dalı.; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Patoloji Anabilim Dalı.; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Biyoistatistik Anabilim Dalı.; 0000-0002-6287-6767; 0000-0002-7846-0870; 0000-0002-1114-6051; 0000-0002-8242-9921; AAH-9704-2021; AFP-3055-2022; HSH-9815-2023; JCO-5169-2023; AAH-5180-2021; AAM-4927-2020; EEJ-1452-2022; EFH-9523-2022; EIN-0828-2022
    Estrogen receptors in prostate cancer (PCa) are a subject of debate. The aim of the present study was to investigate whether estrogen receptor-alpha (ER alpha) and estrogen receptor-beta (ER beta) impact the biochemical recurrence (BCR) of non-metastatic PCa after surgery. Following the application of the exclusion criteria, data from 108 patients who underwent laparoscopic radical prostatectomy between January 2011 and December 2019 were retrospectively evaluated. A total of 36 patients with BCR constituted the BCR group. The control group was formed using the Propensity Score Matching (PSM) method with a 1:2 ratio, including parameters with well-studied effects on BCR. The median follow-up time was 74.3 (range, 30-127.5) months in the BCR group and 66.6 (range, 31.5-130) months in the control group. Pathology specimens from the two groups were immunohistochemically stained with ER alpha and ER beta antibodies. Logistic regression analysis and survival analysis were performed. No differences in clinicopathological characteristics were detected between the two groups. The patients with ER alpha(-)/ER beta(+) staining results had a significantly fewer BCRs than other patients (P=0.024). In the logistic regression analysis, patients with ER alpha(-)/ER beta(+) PCa also had a significantly lower risk of recurrence (P=0.048). In the survival analysis, the 5-year BCR-free survival rate of patients with ER alpha(-)/ER beta(+) PCa was higher than that of other patients (85.7 vs. 66.1%; P=0.031). Excluding the effects of well-studied risk factors for recurrence by the PSM method, the present study showed that ER alpha and ER beta have prognostic value for non-metastatic PCa. The 5-year BCR-free survival rate is significantly higher in patients whose PCa tissue has ER alpha(-)/ER beta(+) staining results.
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    Application of blockchain technology and internet of things in uroflowmetry for clinical trials: A pilot test
    (Elsevier, 2022-02-01) Coşkun, B.; Yayla, O.; Yıldız, H.; COŞKUN, BURHAN; Uludağ Üniversitesi/Tıp Fakültesi/Üroloji bölümü; CKK-9738-2022
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    The role of educational level and cognitive status in men undergoing artificial urinary sphincter implantation
    (Elsevier Science, 2021-01-01) Keleş, Ahmet; Onur, Rahmi; Aydos, Murat; Dinçer, Murat; Koca, Orhan; Coşkun, Burhan; İmamoğlu, Abdurrahim; Karakeçi, Ahmet; COŞKUN, BURHAN; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Üroloji Anabilim Dalı.; AAH-9704-2021 ; JCO-5169-2023
    OBJECTIVE To examine the relationship between education level, cognitive function of patients and the success/ revision rates of artificial urinary sphincter (AUS) implantation in men with postprostatectomy incontinence.METHODS Between January 2010 and March 2018, 163 patients (mean age, 68 +/- 6.8 years) with moderate-to-severe stress urinary incontinence who underwent AUS implantation were retrospectively examined. Demographic data, body mass index, comorbidities, surgical technique, previous strictures, and radiation therapy were recorded. Incontinence was measured by daily pad use and evaluated by International Consultation on Incontinence Questionnaire-short form. Patients' overall improvement was assessed using the Patient Global Impression of Improvement questionnaire. Education level was determined using the International Standard Classification of Education. Cognitive status was assessed using the Mini-Mental State Examination. Treatment success was defined as the need for <= 1 pad/day at last follow-up.RESULTS AUS was successful in 77.3% of patients. The International Consultation on Incontinence Questionnaire-short form score improved significantly from 19.9 +/- 2.9 to 4.4 +/- 5.4 (P = .001). The median outcome reported subjectively on the Patient Global Impression of Improvement scale was 2.1 +/- 1.5 (1-7) and self-reported as "much better." Patients' education level had statistically no significant relationship with AUS success and revision rates. Similarly, there was no significant relationship between cognitive status, educational level and the need for revision of AUS (P >.05). However, patients with moderate cognitive impairment and a body mass index >30 showed significantly lower AUS success rates (P <.05).CONCLUSION AUS implantation is safe and effective treatment option especially for nonobese and cognitively intact patients of all educational levels. (C) 2020 Elsevier Inc.
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    Robotic surgery in radical cystectomy
    (Galenos Yayıncılık, 2013-03-01) Kordan, Yakup; Coşkun, Burhan; Kordan, Yakup; COŞKUN, BURHAN; Uludağ Üniversitesi/Tip Fakültesi/Üroloji Anabilim Dalı; 0000-0002-9947-848X; 0000-0002-8242-9921; AAH-9704-2021; JCO-5169-2023
    Recently, there is an increasing interest and wide spreading use on robot assisted surgeries. In this review, we aimed to discuss perioperative and oncological results of the robot assisted radical cystectomy. Several advantages like reduced blood loss, less analgesic requirement and better cosmetic results were achieved with robot assisted radical cystectomy. Although short and medium term oncological results are comparable with the open series; long-term oncological results are still awaited.
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    The relationship between surgical complications and graft outcomes after kidney transplantation
    (Wiley, 2019-10-01) Düger, Hakan; Ersoy, Alparslan; Dizdar, Oğuzhan Sıtkı; Yıldız, Abdulmecit; Oruç Ayşegül; Ünsal, Oktay; Akgür, Suat; Kordan, Yakup; Kaygısız, Onur; Coşkun, Burhan; Vuruskan, Hakan; Düger, Hakan; ERSOY, ALPARSLAN; Dizdar, Oğuzhan Sıtkı; YILDIZ, ABDULMECİT; ORUÇ, AYŞEGÜL; Ünsal, Oktay; AKGÜR, SUAT; Kordan, Yakup; KAYGISIZ, ONUR; COŞKUN, BURHAN; VURUŞKAN, HAKAN; Uludağ Üniversitesi/Tıp Fakültesi/Dermatoloji Bölümü; Uludağ Üniversitesi/Tıp Fakültesi/Nefroloji Bölümü; Uludağ Üniversitesi/Tıp Fakültesi/Üroloji Bölümü; 0000-0001-5478-3192; 0000-0002-0342-9692; 0000-0002-9947-848X; 0000-0002-9790-7295; 0000-0002-8242-9921; AAM-9726-2020; AAH-5054-2021; AAH-4002-2021; AAH-9704-2021; IZP-9361-2023; JCO-5169-2023; L-9439-2019; D-6213-2013; GPK-6118-2022
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    Evaluation of incidence and histolopathological findings of soft tissue sarcomas in genitourinary tract: Uludag University experience
    (Brazilian Soc Urol, 2019-01-01) Vuruşkan, Berna Aytaç; Özşen, Mine; Coşkun, Burhan; Yalçınkaya, Ülviye; AYTAÇ VURUŞKAN, BERNA; ÖZŞEN, MİNE; COŞKUN, BURHAN; YALÇINKAYA, ÜLVİYE; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Cerrahi Patoloji Anabilim Dalı; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Üroloji Anabilim Dalı; 0000-0002-5771-7649; 0000-0002-8242-9921; AAI-1609-2021; JCO-5169-2023; AAH-8924-2021; AAH-9746-2021; AAH-9704-2021
    Purpose: In this study we aimed to review urological soft tissue sarcomas of genitourinary tract that were diagnosed in our institution and their prognostic factors for survival.Materials and Methods: The clinical and pathological records of 31 patients who had diagnosis of soft tissue sarcomas primarily originating from the genitourinary tract between 2005-2011 were reviewed.Results: The most common site was kidney (17 cases, 54.8%), and most common diagnosis was leiomyosarcoma (11 cases, 35.4%). A total of 24 patients (77.4%) had surgical excision. The surgical margins were positive in 7 patients who presented with local recurrence after primary resection. Twelve patients developed metastatic disease. During follow-up (range 9-70 month), 26 of the 31 patients (88.9%) were alive. Significant survival differences were found according to histological type (p: 0.001), with lower survival rates for malignant fibrous histiocytoma. The tumor size, the presence of metastasis at the time of diagnosis and tumor localization were not statistically significant for overall survival.Conclusions: In our series, prostate sarcomas, paratesticular rhabdomyosarcoma and malignant fibrous histiocytoma had poor prognosis, especially in patients presenting with metastatic disease.
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    Effects of obesity on the perioperative results and continence status in laparoscopic radical prostatectomy
    (Galenos Yayıncılık, 2018-01-16) Kaygısız, Onur; Özmerdiven, Cağdaş Gökhun; Vuruşkan, Berna Aytaç; Coşkun, Burhan; Günseren, Kadir Ömür; Kordan, Yakup; Yavasçaoğlu, İsmet; Vuruşkan, Hakan; KAYGISIZ, ONUR; AYTAÇ VURUŞKAN, BERNA; COŞKUN, BURHAN; GÜNSEREN, KADİR ÖMÜR; VURUŞKAN, HAKAN; YAVAŞCAOĞLU, İSMET; Uludağ Üniversitesi/Tıp Fakültesi/Üroloji Anabilim Dalı.; Uludağ Üniversitesi/Tıp Fakültesi/Patoloji Anabilim Dalı.; 0000-0002-9790-7295; AAH-9704-2021; ABC-9924-2020; AAH-9746-2021; AAM-9726-2020; JHZ-8017-2023; EFH-9523-2022
    Objective: To assess the effects of obesity on the surgical success and perioperative results and continence status in laparoscopic radical prostatectomy (LRP).Materials and Methods: The results of 300 consecutive patients undergoing LRP between April 2004 and January 2014 were analyzed retrospectively. Twenty patients were excluded from the study, thus, 280 patients remained. The patients were separated into 3 groups according to their body mass index. Based on this classification, group 1 (< 25 kg/m(2)) was normal, group 2 (25- 30 kg/m(2)) was overweight, and group 3 (> 30 kg/m(2)) was obese. The demographic data, intraoperative results, pathological results, and states of continence were compared among the groups.Results: There were 81 patients in group 1, 152 patients in group 2, and 47 patients in group 3. There were no significant differences when the groups were compared according to age and prostate specific antigen values. The intraoperative blood loss was high in group 3 only. Moreover, the estimated blood loss, transfusion, operative time, bilateral nerve- sparing rate, hospitalization days, and complication rate were similar between the groups. There were no significant differences when the pathological results were compared according to the positive surgical margins and Gleason scores. Although the continence rates in group 3 were significantly low 6 months after the operation (p< 0.05), the results were similar at 1 year (p= 0.738).Conclusion: LRP can be applied confidently in obese patients as well as normal and overweight patients.
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    Factors influencing lymphocele development after kidney transplant: Single center experience
    (Başkent Üniversitesi, 2023-03-01) Sayılar, Emel Işıktaş; Ersoy, Alparslan; Ayar, Yavuz; Aydın, Mehmet Fethullah; Şahin, Ahmet Bilgehan; Coşkun, Burhan; Kaygısız, Onur; Yıldız, Abdülmecit; Kordan, Yakup; Vuruşkan, Hakan; Sayılar, Emel Işıktaş; ERSOY, ALPARSLAN; Ayar, Yavuz; Aydın, Mehmet Fethullah; ŞAHİN, AHMET BİLGEHAN; COŞKUN, BURHAN; KAYGISIZ, ONUR; YILDIZ, ABDULMECİT; Kordan, Yakup; VURUŞKAN, HAKAN; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Nefroloji Anabilim Dalı.; Bursa Uludağ Üniversitesi/Tıp Fakültesi/İç Hastalıkları Anabilim Dalı.; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Üroloji Anabilim Dalı.; 0000-0003-4607-9220; 0000-0002-5665-7402; 0000-0002-7846-0870; 0000-0002-8242-9921; 0000-0002-9790-7295; 0000-0002-9947-848X; AAJ-8220-2020; O-9948-2015; AAH-9704-2021; L-9439-2019; JCO-5169-2023; AAM-4927-2020; HYA-4372-2023; CPX-5894-2022; HIG-9032-2022; GAF-0095-2022; EFH-9523-2022
    Objectives: Lymphocele is a well-known postoperative surgical complication after kidney transplant. In this study, our aim was to analyze incidence, risk factors, and outcomes of posttransplant lymphocele in a large cohort.Materials and Methods: This observational study included 395 consecutive patients (219 males and 176 females) who underwent kidney transplant procedures from 183 living and 212 deceased donors in our center between January 2007 and 2014. A lymphocele was diagnosed with ultrasonography.Results: The incidence of lymphoceles in our cohort was 31.9% (n = 126). There were no significant differences with regard to body mass indexes, age of donors, deceased donor ratios, acute rejection episodes, and history of abdominal surgery between those with and without lymphoceles. The pretransplant serum albumin levels (3.29 +/- 0.67 vs 3.48 +/- 0.69 g/dL; P = .009) in the lymphocele group and diabetes mellitus ratios (15.9% vs 4.5%; P < .001) in the nonlymphocele group were lower than levels shown in the other group. The lymphocele ratio in patients who received cyclosporine was higher than that shown in patients who did not received it (37.5% vs. 27.4%; P = .032). There was no difference in lymphocele incidence between patients who were taking and those who were not taking mammalian target of rapamycin inhibitors, mycophenolate mofetil, or mycophenolate sodium. In regression analysis, presence of diabetes mellitus, transplant from deceased donors, older age of donors, and lower albumin levels were independent risk factors for posttransplant lymphocele occurrence.Conclusions: Posttransplant lymphocele was a relatively common surgical complication in our cohort. We concluded that diabetes mellitus, use of kidneys from deceased donors, older donor age, and hypoalbuminemia were independent risk factors for lymphocele development.