Publications by authors named "Adem Karatas"

Sentinel lymph node (SLN) biopsy is the main method in staging the axilla. There are insufficient data available regarding the accuracy of an SLN biopsy in male breast cancer. The aim of this study is to evaluate whether the combination of dye and radiotracer would improve the detection rate of SLNs dye alone in male breast cancer patients.

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Hyalinizing trabecular tumor was first described by Carney et al. (1) in 1987 and is a rare benign tumor of the thyroid gland that shares some of the microscopic features of medullary and papillary thyroid carcinoma. Hyalinizing trabecular tumor derives from follicular cells, and it is characterized by an apparent trabecular pattern and intratrabecular hyalinization.

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Article Synopsis
  • The study examined the surgical outcomes and complications of totally implantable venous port catheters in 3,000 patients, focusing on demographics and clinical features from March 2005 to March 2017.
  • The majority of catheters were inserted via the right internal jugular vein, with a mean duration of stay of 46.7 months and an overall complication rate of 9.6%, mainly infections and thrombosis.
  • The findings suggest that these catheters can improve the quality of life for cancer patients, despite some risks associated with their use.
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Purpose: Prevalence of papillary thyroid cancer (PTC) is increased in patients with acromegaly. We aimed to determine the protein expression of BRAF, RAS, RET, insulin like growth factor 1(IGF1), Galectine 3, CD56 in patients with PTC related acromegaly and to compare the extensity of these expressions with normal PTC patients and benign thyroid nodules.

Methods: We studied 313 patients with acromegaly followed in Cerrahpasa Medical Faculty, Endocrinology and Metabolism Clinic between 1998 and 2015.

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Article Synopsis
  • - The study explored how geographical differences impact the clinical presentation and surgical outcomes of patients with primary hyperparathyroidism (pHPT) across three regions: Black Sea, Mediterranean, and Anatolia.
  • - Data from 694 patients across 23 centers indicated that the median age was 54, with 25% being asymptomatic; significant variations emerged in preoperative symptoms, serum calcium levels, and adenoma sizes depending on the region.
  • - Findings suggest that environmental factors related to different habitats influence the clinicopathological characteristics of pHPT patients, with South-East Anatolia showing all symptomatic patients, while Bulgaria had the largest adenoma sizes and highest calcium levels.
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Background: Recent reports indicated that incidence of thyroid carcinoma is increasing throughout the worldwide. The aim of our study was to determine a possible relationship between Forkhead box E1 (FOXE1) gene variants and histopathological features of papillary thyroid carcinoma.

Methods: FOXE1 gene variations; rs894673, rs1867277 and rs3758249 were analyzed in 57 Papillary thyroid carcinoma patients and 51 age matched healthy control subjects.

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Objective: Shear-wave elastography (SWE) presents quantitative data that thought to represent intrinsic features of the target tissue. Factors affecting the metabolism of the breast parenchyma as well as age, menstrual cycle, hormone levels, pregnancy and lactation, pre-compression artifact during the examination could affect these elastic intrinsic features. Aim of our study is to determine variation of fibroadenoma elasticity during the menstrual cycle (MC) by means of real-time shear-wave elastography (SWE) and identify the optimal time for SWE evaluation.

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Bleeding of parastomal varices is an unusual complication of portal hypertension. We report a case with recurrent parastomal variceal bleeding who had chronic liver disease secondary to autoimmune hepatitis and who had undergone abdominoperineal resection for rectal cancer. She presented four episodes of parastomal variceal bleeding in one month and was successfully treated with combined polidocanol and cyanoacrylate glue.

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Feeding jejunal tubes provide an excellent method for enteral nutritional support in cases where the oral route is impossible or insufficient for use. However, several complications may result from the placement of the tube. Detachment of the tube and migration through the intestine is a very rare complication.

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Hypothesis: Single-port laparoscopic rectal surgery can be performed using the principles of oncologic surgery in institutes experienced in laparoscopy with the advantages of minimally invasive surgery.

Design: Sphincter-saving mesorectal excision in 4 human cases via a single laparoscopic port.

Settings: A university hospital and a private hospital.

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Background: Spontaneous rectus sheath hematoma (RSH) is an uncommon and frequently misdiagnosed cause of acute abdominal pain. The purpose of this study is to present our experiences in the diagnosis and treatment of spontaneous RSH.

Methods: This is a retrospective study of the medical histories of 15 patients admitted to our emergency surgery unit between January 2000 and July 2009 and diagnosed with spontaneous RSH (12 females, 3 males; mean age, 64.

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Background: Ischemia is a troublesome problem that can cause intestinal emergencies and complicate the treatment. Identification of a chemical agent with beneficial effects on the healing process in risky colon anastomosis with the aim of reducing leakage rates is a popular topic in the era of surgical research. Data is lacking about the role of amelogenin, an extracellular matrix protein, during the healing process of gastrointestinal anastomosis.

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Introduction: Mustafa Kemal Atatürk, founder of the Turkish Republic, had guarded many German scientists of a Jewish descent before the Second World War. Dr. Rudolf Nissen was one of the outstanding surgeons who had served in the Turkish university hospitals.

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Purpose: In this study, the effects of intravenous paracetamol treatment on early postoperative period analgesia and recovery characteristics after laparoscopic cholecystectomy have been evaluated.

Methods: Forty patients whose American Society of Anesthesiologists physical status I or II underwent laparoscopic cholecystectomy and randomly divided into 2 equal groups. In the first group, 1 g paracetamol was given to the patients intravenously after intubation before start of the surgery in 15 minutes.

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Background: Various techniques have been used for the division of mesoappendix, such as endoloops, endoscopic linear cutting staplers, an electrothermal vessel-sealing system (LigaSure), the Harmonic Scalpel, clips, and bipolar coagulation. In the present study, LigaSure and an endoclip were compared in laparoscopic appendectomy (LA).

Materials And Methods: This study included patients who underwent LA for acute appendicitis at Istanbul University, Cerrahpasa Medical Faculty, Emergency Unit (Istanbul, Turkey) between May 2003 and April 2007.

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Background: The aim of this paper is to assess the effects of halofuginone, a specific inhibitor of synthesis of collagen Type 1, on fibrogenetic process in an experimental model of early pancreatic fibrosis.

Methods: Thirty rats were divided into three equal groups: group 1, sham laparotomy; group 2, severe hyperstimulation and obstruction pancreatitis (SHOP) with no treatment; group 3, SHOP with halofuginone treatment group. SHOP model was induced by complete pancreatic duct obstruction and daily cerulein hyperstimulation (50 microg/kg, intraperitoneally).

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Purpose: To assess the role of laparoscopy in the diagnosis and treatment of abdominal stab injuries (ASI).

Methods: Patients who underwent laparoscopic procedures due to ASI were included in the study. Hemodynamic instability, injuries to the posterior trunk, concomitant severe cranial injuries, and prior abdominal operations were considered as contraindication for laparoscopy.

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Background And Aim: YKL-40 is secreted by macrophages and neutrophils and is a growth factor for vascular endothelial cells and fibroblasts. Elevated serum levels of YKL-40 have been reported in patients with various inflammatory conditions and ongoing fibrosis. The aim of this study was to investigate the relationship between serum concentrations of YKL-40 and disease activity, acute phase reactants, and the presence of strictures in patients with Crohn's disease (CD).

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