Browsing by Author "Arslan D."

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    Medical management of an ovarian ectopic pregnancy: a case report
    (BioMed Central, 2015) Birge O.; Erkan M.M.; Ozbey E.G.; Arslan D.
    Background: Primary ovarian ectopic pregnancy is a rare type of ectopic pregnancy which has an estimated prevalence ranging from 1:7000 to 1:70,000 accounting for almost 3 % of all ectopic cases. Here we report the case of a 25-year-old woman who presented to our clinic with abdominal pain, 6 weeks' delay of menstruation and 3 days of vaginal bleeding, whose transvaginal ultrasonography showed an ectopic gestational sac with yolk sac inside, in her right ovary. This case shows that early diagnosis is very important particularly in places like the Sub-Saharan region of Africa. Case presentation: A 25-year-old African woman was referred to our clinic with 6 weeks' delay of menstruation, frequent increasing abdominal pain and 3 days of vaginal bleeding. Her general condition was good and her vital signs were normal. She felt tenderness in an abdominal examination and had a small amount of vaginal bleeding. Transvaginal ultrasonography showed an ectopic gestational sac with yolk sac inside, in her right ovary. Our final diagnosis was ectopic ovarian pregnancy and we successfully treated her with methotrexate. After 3 weeks of methotrexate administration her beta human chorionic gonadotropin was negative and a sonographic examination was completely normal. Conclusions: Ectopic ovarian pregnancy is a very important medical situation. It should be diagnosed in its early stages otherwise it could be life-threatening and surgical treatment may be inevitable. Because of the importance of fertility, medical treatment is an acceptable option and can be feasible with early diagnosis. © 2015 Birge et al.
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    Safety and efficacy of single-incision sling for female stress urinary incontinence: 3 years’ results
    (Springer London, 2016) Yildiz G.; Ceylan Y.; Ucer O.; Arslan D.; Çelik O.; Gunlusoy B.
    Introduction and hypothesis: The purpose of this study was to investigate the success and complication rates of single-incision sling for treating stress urinary incontinence (SUI), with a 3-year follow-up. Methods: This study comprised 173 female patients with SUI or mixed urinary incontinence (MUI) with dominant SUI who underwent minisling procedure. All patients had positive cough stress test preoperatively; they were followed up for 3 years after surgery (1, 3, 6, 12 months, and yearly). Results: Total follow-up was 36 months, and mean age 51 years (44–77); 128 (74 %) patients presented SUI and 45 (26 %) MUI. Objective and subjective cure and failure rates were 83.8 % (145 cases), 6.4 % (11 cases), and 9.8 % (17 cases), respectively. There were no differences in cure rates between 1 and 3 years. Mean body mass index was 28.7 (26.1–35.2), and mean operating time 7.9 min. (6.5–11.9). There were no major intraoperative complications. Eleven patients (6.4 %) had de novo urge incontinence that resolved using anticholinergic drugs; no patient had urinary retention. Vaginal mesh extrusion was reported in nine (5.2 %) patients. Conclusions: The minisling system attained high success rates at 3 years’ follow-up. The procedure was easy to learn and has lower complication rate. © 2016, The International Urogynecological Association.
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    Opinions of university students about female genital mutilation in sudan; [Opinion des étudiants concernant les mutilations sexuelles féminines au Soudan]
    (World Health Organization, 2019) Akbas M.; Birge O.; Arslan D.; Ozbey E.G.
    Background: Female genital mutilation/cutting (FGM/C) is an illegal tradition commonly practiced in Sub-Saharan Africa and the Middle East. Despite a globalized world and developing social media, this harmful practice is currently still being implemented. Aims: We aimed to evaluate the opinions of university students regarding FGM/C. Methods: This descriptive study included 821 students who studied at Nyala University, Sudan, in January 2016. The students were questioned for the following: Age, faculty, reasons for female circumcision, effects of female circumcision on female sexual functions and their views about the circumcision for their daughter. Results: The rate of FGM/C among female university students was 80.1%. Although 73% of the male students prefer to marry uncircumcised women, they also reported that FGM/C should be continued to be performed, and their future daughters should be circumcised (64.5%). Female students were against FGM/C for their future daughters (77.6%). Conclusions: This study shows that even educated individuals demand FGM/C in spite of knowing the harm. It is therefore suggested continuing educational studies on this subject. © World Health Organization (WHO) 2019.
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    Familial mediterranean fever mutation analysis in pediatric patients with İnflammatory Bowel Disease: A multicenter study
    (AVES, 2021) Urganci N.; Ozgenc F.; Kuloǧlu Z.; Yüksekkaya H.; Sari S.; Erkan T.; Önal Z.; Çaltepe G.; Akçam M.; Arslan D.; Arslan N.; Artan R.; Aydoǧan A.; Balamtekin N.; Baran M.; Baysoy G.; Çakir M.; Dalgiç B.; Doǧan Y.; Durmaz O.; Ecevit C.; Eren M.; Gökçe S.; Gülerman F.; Gürakan F.; Hizli S.; Işik I.; Kalayci A.G.; Kansu A.; Kutlu T.; Karabiber H.; Kasirga E.; Kutluk G.; Hoşnut F.O.; Özen H.; Özkan T.; Öztürk Y.; Soylu O.B.; Tutar E.; Tümgör G.; Ünal F.; Ugraş M.; Üstündaǧ G.; Yaman A.
    Background: The aim of the study was to evaluate familial Mediterranean fever (FMF) mutation analysis in pediatric patients with inflammatory bowel disease (IBD). The relation between MEFV mutations and chronic inflammatory diseases has been reported previously. Methods: Children with IBD (334 ulcerative colitis (UC), 224 Crohn's disease (CD), 39 indeterminate colitis (IC)) were tested for FMF mutations in this multicenter study. The distribution of mutations according to disease type, histopathological findings, and disease activity indexes was determined. Results: A total of 597 children (mean age: 10.8 ± 4.6 years, M/F: 1.05) with IBD were included in the study. In this study, 41.9% of the patients had FMF mutations. E148Q was the most common mutation in UC and CD, and M694V in IC (30.5%, 34.5%, 47.1%, respectively). There was a significant difference in terms of endoscopic and histopathological findings according to mutation types (homozygous/ heterozygous) in patients with UC (P < .05). There was a statistically significant difference between colonoscopy findings in patients with or without mutations (P = .031, P = .045, respectively). The patients with UC who had mutations had lower Pediatric Ulcerative Colitis Activity Index (PUCAI) scores than the patients without mutations (P = .007). Conclusion: Although FMF mutations are unrelated to CD patients, but observed in UC patients with low PUCAI scores, it was established that mutations do not have a high impact on inflammatory response and clinical outcome of the disease. Copyright © 2021 by The Turkish Society of Gastroenterology.
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    Improving the abrasion resistance of AISI 304L metallic biomaterial by microwave boriding
    (Inderscience Publishers, 2021) Arslan D.; Uzun R.O.
    Metallic materials are used as biomaterials thanks to their high mechanical properties. However, their low resistance to corrosion and abrasion reduces the biocompatibility of them. In this study, the abrasion resistance of AISI 304L metallic biomaterial was improved by pack-boriding with microwave hybrid heating. For this purpose, AISI 304L material was pack-borided by using EKABOR II powder for two, four and six hours in a microwave oven with a power of 2.9 kW and a frequency of 2.45 GHz at temperatures of 850°C, 900°C and 950°C. A boride layer with a thickness ranging between 12.1 μm–56.6 μm was obtained on the surface as a result of boriding. The specific wear rate of the AISI 304L material pack-borided for four hours at 950°C, which exhibits the highest wear resistance, has been determined as 1.04656 × 10–5 mm3/Nm. The abrasion resistance of AISI 304L metallic biomaterial was increased 28 times by microwave boriding. Copyright © 2021 Inderscience Enterprises Ltd.
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    Investigation of mechanical and tribological behavior of SiC and B4C reinforced Al-Zn-Mg-Si-Cu alloy matrix surface composites fabricated via friction stir processing
    (Elsevier Ltd, 2022) Ayvaz S.I.; Arslan D.; Ayvaz M.
    In this study, SiC and B4C reinforced Al-Zn-Mg-Si-Cu alloy matrix surface composites (SCs) were produced by friction stir processing (FSP) technique. Microstructural, mechanical, and tribological properties of produced SCs, and those of non-reinforced samples were examined. In B4C and SiC reinforced SCs fabricated by friction stir processing, approximately a 20% increase in hardness was achieved as compared to the base metal. The maximum microhardness values of B4C and SiC reinforced surface composites were determined as 88.1 and 89.7 HV, respectively. The tensile strengths of these samples were measured as 166.42 and 174.74 N·mm−2, respectively. As a result of the tests performed under 3, 5, and 10 N applied loads, it was observed that the friction coefficient decreased in general with the applied load. A higher coefficient of friction was obtained in SiC reinforced SCs than those of B4C reinforced SCs and non-reinforced samples. It was determined that the wear rate of B4C reinforced SCs decreased by ~30–40% and SiC reinforced SCs by ~50–55% compared to non-reinforced samples. In the examinations, it was revealed that mechanically mixed layer formation effectively reduced wear rate in these samples compared to non-reinforced samples. © 2022 Elsevier Ltd
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    EFFECTS OF ENVIRONMENTALLY FRIENDLY FLUIDIZED BED DRYING ON THE QUALITY OF Viburnum opulus
    (Gheorghe Asachi Technical University of Iasi, Romania, 2022) Bölek S.; Mercan M.; Vursavaş M.; Arslan D.; Yurddaş A.
    Owing to their high antioxidant activity, fiber, vitamin and mineral content, dried fruits are healthy and nutritious snacks. However, some quality characteristics of fruits are adversely affected by drying. Therefore, drying temperature is very important to obtain healthy and nutritious dried products. Recently, fluidized bed drying technology has been spread all over the world as it is an efficient and environmentally friendly technique. This study investigated the effects of fluidized bed drying, which is a thermodynamic equilibrium drying technique, on quality characteristics of Viburnum opulus. For this aim, the V. opulus fruits were dried at 60°C, 70°C and 80°C with an air flow rate of around 60 m3/h for 5 h, 4 h and 3 h respectively. The moisture contents of V. opulus fruits were reduced by half (for medium-high temperature cases) after 90 min of drying process. Thanks to environmentally friendly fluidized bed drying system, V. opulus fruits moved on the bed during drying. As the fruits did not stay in the same place, heat and mass transfer increased and uniform drying was achieved. Color, rehydration capacity, shrinking ratio, antioxidant activity, pH and sensory analysis were conducted to compare the sensory, chemical and physical properties of dried V. opulus fruits. The drying temperature affected the quality characteristics of V. opulus fruits significantly (p<0.05). The V. opulus fruits dried at 60°C has the highest rehydration capacity and they were the most appreciated samples with regards of appearance, flavor and overall impression among the dried fruits (p<0.05). © 2022 Gheorghe Asachi Technical University of Iasi, Romania. All rights reserved.
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    Evaluation of 601 children with multisystem inflammatory syndrome (Turk MISC study)
    (Springer Science and Business Media Deutschland GmbH, 2023) Yilmaz D.; Ekemen Keles Y.; Emiroglu M.; Duramaz B.B.; Ugur C.; Aldemir Kocabas B.; Celik T.; Ozdemir H.; Bayturan S.; Turel O.; Erdeniz E.H.; Cakici O.; Cakmak Taskin E.; Erbas İ.C.; Genceli M.; Sari E.E.; Caymaz C.; Kizil M.C.; Sutcu M.; Demirbuga A.; Alkan G.; Bagcı Z.; Timurtas Dayar G.; Ozkan E.A.; Tekin Yilmaz A.; Akca M.; Yesil E.; Kara S.S.; Akturk H.; Yasar B.; Umit Z.; Uygun H.; Erdem N.; Buyukcam A.; Karadag Oncel E.; Tuter Oz S.K.; Cetin H.S.; Anil A.B.; Yilmaz R.; Zengin N.; Uzuner S.; Albayrak H.; Borakay O.; Topal S.; Arslan G.; Yazar A.; Ozer A.; Kendirli T.; Kara E.M.; Demirkol D.; Battal F.; Kosker M.; Metin Akcan O.; Kihtir H.S.; Gul D.; Zararci K.; Alakaya M.; Kula N.; Celik E.; Petmezci E.; Evren G.; Kara Aksay A.; Konca C.; Sert A.; Arslan D.; Bornaun H.; Tekeli O.; Bal A.; Sahin I.O.; Demir S.; Sap F.; Akyol M.B.; Tanidir I.C.; Donmez Y.N.; Ucar T.; Coban S.; Arga G.; Hancerli Torun S.; Karpuz D.; Celik S.F.; Varan C.; Elmali F.; Oncel S.; Belet N.; Hatipoglu N.; Dalgic Karabulut N.; Turgut M.; Somer A.; Kuyucu N.; Dinleyici E.C.; Ciftci E.; Kara A.
    Purpose: Due to its link with the 2019 coronavirus, the multisystem inflammatory syndrome in children (MISC) has garnered considerable international interest. The aim of this study, in which MISC patients were evaluated multicenter, and the data of the third period of the Turk-MISC study group, to compare the clinical and laboratory characteristics and outcomes of MISC patients who did and did not require admission to an intensive care unit (ICU). Methods: This retrospective multicenter observational study was carried out between June 11, 2021, and January 01, 2022. The demographics, complaints, laboratory results, system involvements, and outcomes of the patients were documented. Results: A total of 601 patients were enrolled; 157 patients (26.1%) required hospitalization in the intensive care unit (ICU). Median age was 8 years (interquartile range (IQR) 4.5–11.3 years. The proportion of Kawasaki disease-like features in the ICU group was significantly higher than in the non-ICU group (56.1% vs. 43.2% p = 0.006). The ICU group had considerably lower counts of both lymphocytes and platelets (lymphocyte count 900 vs. 1280 cells × μL, platelet count 153 vs. 212 cells × 103/ μL, all for p< 0.001). C-reactive protein, procalcitonin, and ferritin levels were significantly higher in the ICU group (CRP 164 vs. 129 mg/L, procalcitonin 9.2 vs. 2.2 μg/L, ferritin 644 vs. 334 μg/L, all for p< 0.001). Being between ages 5–12 and older than 12 increased the likelihood of hospitalization in the ICU by four [95% confidence intervals (CI)1.971–8.627] and six times (95% CI 2.575–14.654), respectively, compared to being between the ages 0–5. A one-unit increase in log d-dimer (µg/L) and log troponin (ng/L) was also demonstrated to increase the need for intensive care by 1.8 (95% CI 1.079–3.233) and 1.4 times (95% CI 1.133–1.789), respectively. Conclusion: By comparing this study to our other studies, we found that the median age of MISC patients has been rising. Patients requiring an ICU stay had considerably higher levels of procalcitonin, CRP, and ferritin but significantly lower levels of lymphocyte and thrombocyte. In particular, high levels of procalcitonin in the serum might serve as a valuable laboratory marker for anticipating the need for intensive care. What is Known: • Lymphopenia and thrombocytopenia were an independent predictor factors in patients with MISC who needed to stay in intensive care unit. • The possibility of the need to stay in the intensive care unit in patients with MISC who had Kawasaki disease-like findings was controversial compared with those who did not. What is New: • A one-unit increase log D dimer and log troponin was demonstrated to require for intensive care unit by 1.8 and 1.4 times, respectively. • Serum procalcitonin levels had the best performance to predict stay in the intensive care unit stay. © 2023, The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.