Publications by authors named "Muemin Mehmet Koc"

Purpose: Sacrococcygeal pilonidal disease (SPD) is a global concern, notably in Southeast Europe and the Middle East. Unroofing curettage (UC), which provides faster recovery, better cosmetic appearance, and lower recurrence rates in the primary cases, was evaluated with the results of recurrent disease.

Methods: This retrospective study included 74 patients with recurrent disease who were over 16 years of age, experienced recurrence after at least one surgical attempt, and underwent unroofing curettage between 2007 and 2019.

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  • The study focuses on tendon injuries in complex wounds of the hand and lower extremities, exploring how different types of adipofascial tissue flaps affect healing and functional recovery.
  • It compares vascularised versus nonvascularised adipofascial flaps using Wistar Albino rats, assessing healing through scintigraphic evaluations and histopathological analysis.
  • Results indicate that vascularised flaps promote faster healing while pedicle-free flaps also aid tendon recovery without complications, providing insights for improving tendon repair techniques in reconstructive surgery.
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  • * Treatment options include antihypertensive medication, surgical revascularization, and angioplasty, with kidney autotransplantation as an alternative for complex cases.
  • * A case study of a 22-year-old woman shows successful kidney autotransplantation led to improved kidney function and controlled blood pressure, highlighting it as a viable solution for severe cases of fibromuscular dysplasia.
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  • Millions are affected by natural disasters annually, leading to serious medical issues like crush syndrome, which often results in acute kidney injury tied to high mortality rates.
  • This study analyzed data from 1024 patients with crush syndrome after the February 2023 earthquakes in Kahramanmaras, focusing on their treatment and outcomes in Turkish hospitals.
  • The findings revealed high rates of acute kidney injury and hemodialysis treatment, with a 9.8% in-hospital mortality rate, highlighting the urgent need for improved emergency response training and protocols for managing kidney health in disaster scenarios.
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Aim: The aim of this study was to assess the short-term outcomes of robotic colorectal surgery implemented through a structured, standardized training pathway in five colorectal centres in the United Kingdom.

Method: A multicentre retrospective observational study was conducted, involving 523 consecutive patients who underwent robotic colorectal resection between 2015 and 2019. All participating centres followed the European Academy of Robotic Colorectal Surgery training pathway.

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Introduction: Contrast nephropathy (CN) is characterized by oxidative stress, vasoconstriction, tubular toxicity, and hypoxia of the renal medulla. We aimed to test the therapeutic effects of an α7 nicotinic acetylcholine receptor (nAChR) agonist, GTS-21, in an experimental CN model.

Methods: Male Sprague-Dawley rats (n = 40) were divided into 4 groups: saline-treated control, GTS-21-treated control, contrast, and GTS-21-treated contrast groups.

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Background: Immunoglobulin A (IgA) nephropathy (IgAN) treatment consists of maximal supportive care and, for high-risk individuals, immunosuppressive treatment (IST). There are conflicting results regarding IST. Therefore, we aimed to investigate IST results among IgAN patients in Turkiye.

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  • Deep learning methods have shown great success in biomedical image processing, particularly for automatic diagnosis, but often prioritize accuracy over interpretability and appropriate data separation.
  • Many studies shuffle data randomly for training and testing, which can lead to misleading accuracy and irrelevant feature learning since images from the same patient may be split across different sets.
  • In contrast, models trained with strict patient-level separation demonstrate better performance on new patient images and provide clearer visualizations of relevant features, indicating a more reliable approach for improving real-life applicability.
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Purpose: This study aims to adapt and validate the Cleveland Clinic Colorectal Cancer Quality of Life Questionnaire (CCF-CaQL) in Turkish, addressing the significant need for reliable, language-specific QoL measures for colorectal cancer (CRC) in Turkiye. This effort fills a critical gap in CRC patient care, enhancing both patient-provider communication and disease-specific QoL assessment.

Methods: The CCF-CaQL was translated into Turkish, verified for accuracy, and reviewed for clarity and relevance.

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Background: This study aimed to investigate thymoquinone (TQ), and melatonin's radioprotective effects on liver, parotid gland, brain, and testis of rats which were exposed to total body irradiation (IR).

Methods: Thirty adult Wistar rats were randomly divided into four groups that are Group 1 (control group): total body IR only, Group 2: IR-Melatonin (10 mg/kg), Group 3: IR-TQ (10 mg/kg), and Group 4 (sham group): nothing. Total body IR dose was 6 Gy.

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Background: Tumoral lesions are a relatively rare cause of acute appendicitis. Accurate pre-operative diagnosis is essential to provide appropriate treatment. The aim of this study was to evaluate factors that may increase diagnostic rate of appendiceal tumoral lesions in patients undergoing appendectomy.

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Background: Consolidation chemotherapy strategies have demonstrated improved pathological complete response and tumor downstaging rates for patients diagnosed with rectal cancer.

Objective: This study aimed to compare perioperative outcomes and pathological complete response rates among different neoadjuvant treatment strategies in patients undergoing total mesorectal excision for locally advanced rectal cancer.

Design: Propensity score case-matched study.

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Purpose: The aim of this study was to determine sleep problems and the sleep quality of individuals with intestinal stomas.

Design: Descriptive quantitative design was used.

Subjects And Setting: The research was carried out from September 2018 to September 2019 at 3 university hospitals with stoma units located in Ankara, Turkey.

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Cereal-based foods have been essential elements in nutrition throughout history. Recently, there has been an increasing interest in the application of innovative strategies to improve technological and nutritional properties of dough-based cereal products. Literature studies indicate that the integration of vacuum technology into baking and noodle industry can significantly enhance the quality and feasibility of final products.

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Essential oils (EOs) have many beneficial qualities, including antimicrobial, antioxidant, antiviral, and antifungal activities, along with good aroma, which have played a significant role in pharmaceutical, textile, and food industries. However, their high volatility and sensibility to external factors, as well as susceptibility to deterioration caused by environmental and storage conditions, or even common processing, and consequently limited water solubility, makes it difficult to incorporate them into aqueous food matrices and limits their industrial application. Spray-drying encapsulation has been proposed as a solution and a challenging research field to retard oil oxidation, extend EO's shelf life, improve their physicochemical stability, achieve controlled release, suggest novel uses, and therefore boost their added value.

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Introduction: To compare surgical and conservative management of midshaft clavicle fractures according with scapulothoracic joint angle change, considering clinical, functional, and radiological outcomes.

Methods: A total of 95 midshaft clavicle fracture patients aged between 18-70 years with a minimum follow-up duration of 12 months were included in this study. Patients were treated either conservatively (Group I) or surgically (Group 2).

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Background: Patient deaths are an unavoidable occurrence in surgical practice. Although these events have negative effects on patients and their families, they can also have a profound adverse impact on surgeons who are unprepared for these deep emotional experiences. This study aims to investigate the impact of patient deaths on general surgeons' psychosocial well-being and surgical practices.

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The aim of this study was to compare the reproductive outcomes between infertile women who underwent hysteroscopic uterine septum resection and those who required a second look hysteroscopy due to residual septum prior to intracytoplasmic sperm injection (ICSI) cycles with selective single 'Grade A' embryo transfer (ET). All second look hysteroscopies were performed due to partial remnant septum in a control three dimensional transvaginal ultrasonography (3D TVUSG) after the first hysteroscopic resection. Miscarriage and biochemical pregnancy rates were not different between the groups while clinical pregnancy and live birth rates were significantly higher in Group 2 than in Group 1.

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Background: Nesfatin-1 (NES-1), an anorexigenic peptide, was reported to have anti-inflammatory and anti-apoptotic actions in several inflammation models.

Methods: To elucidate potential renoprotective effects of NES-1, unilateral ureteral obstruction (UUO) was induced in male Sprague Dawley rats by ligating left ureters. The rats were injected intraperitoneally with either saline (SL) or NES-1 (10 µg/kg/day) for 7 or 14 days (n = 8 in each group).

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Background: An intestinal stoma has severe psychosocial effects on patients.

Objective: This study aimed to measure the effects of prehabilitation on stoma self-care, quality of life, anxiety, and depression levels.

Design: This study was a a randomized controlled trial.

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Introduction: The aim of this study was to investigate the incidence of general psychiatric symptoms, aggression levels, and sexual dysfunction in patients with benign anorectal diseases and compare the results with those of healthy control subjects.

Methods: We prospectively enrolled consecutive adult patients who presented for treatment of benign perianal diseases and healthy control subjects between June 2017 and December 2018. All patients had either grade 3 or 4 hemorrhoidal disease or perianal fistula with active discharge who had not undergone previous anorectal surgery.

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Background: With more than 3.6 million Syrian refugees Turkey hosts the world's largest number of Syrians. Considering the morbidity, mortality, and healthcare spending, cancer is one of the leading health and economic burden for patients and healthcare systems.

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Study aims to assess amylase, lipase of patients with Type 2 diabetes under different types of treatments. Patients' treatment modalities including insulin, metformin, pioglitazone, sodium-glucose co-transporter-2 inhibitors, insulin secretagogues, dipeptidyl peptidase-4 inhibitors and glucagon like peptide-1 receptor agonists were compared. There was no difference in amylase and lipase levels between dipeptidyl peptidase-4 inhibitor users and non-users (p = 0.

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Background: Pilonidal sinus is a common health problem. The current study aimed to compare the impact of autologous platelet-rich plasma (PRP) with that of minimally invasive techniques in terms of pain reduction, return to daily activities, quality of life, and duration of wound healing after open excision and secondary closure.

Methods: Patients who were over 18 years old and had chronic PS disease between March 2018 and January 2019 were enrolled and randomly divided into three groups.

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  • The Prognostic Nutritional Index (PNI) is an important marker for predicting mortality in elderly patients (over 80) with chronic kidney disease (CKD).
  • During a study of 359 patients, it was found that those with a low PNI (< 39) had higher mortality rates and lower levels of critical health markers like albumin and hemoglobin.
  • The findings suggest that PNI can effectively assess nutritional status and may help in monitoring and improving patient outcomes in this age group with CKD.
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