Publications by authors named "Mehmet Turkoglu"

Background: This study examined the impact of neurosurgeons' experience on surgical timing and outcomes in aneurysmal subarachnoid hemorrhage (aSAH) and questioned the adherence to early surgery as recommended by recent guidelines.

Methods: A retrospective analysis of 196 aSAH patients treated between 2013 and 2020 was conducted. Variables included age, sex, initial Glasgow Coma Scale (GCS) scores, World Federation of Neurological Surgeons grades, Fisher's grades, rebleeding, hydrocephalus, and preoperative-postoperative neurological status.

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Objective: This study investigates the neuroprotective effects and functional recovery potential of Coenzyme Q10 (CoQ10) and ozone therapy in spinal cord injury (SCI).

Material And Methods: In this study, 40 female Sprague-Dawley rats were divided into 5 groups of 8. Surgical procedures induced spinal cord trauma in all groups, except the control group.

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Objective: Enhanced recovery after surgery (ERAS) protocols are standardized perioperative care that reduce patients' stress response during hospitalization and improve hospitalization time, complication rates, costs, and readmission rates. This study aimed to investigate the application rate of protocols for elective craniotomy in the surgery of unruptured anterior circulation aneurysms (AnCAs) at tertiary-level healthcare (TLH) institutions in Türkiye and its effect on the outcomes of the patients.

Methods: An electronic survey was sent to all Turkish TLH institutions (n = 127) between May and June 2023.

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Objectives: Mild traumatic brain injury (mTBI) comprises most (70%-90%) of all pediatric head trauma cases seeking emergency care. Although most mTBI cases have normal initial head computed tomography scan, a considerable portion of the cases have intracranial imaging abnormalities on computed tomography scan. Whereas other intracranial pathological findings have been extensively studied, little is known about the clinical significance of pneumocephalus in pediatric mTBI.

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Objective: Despite the relatively high success of surgical clipping of supraclinoid segment aneurysms of the internal carotid artery (ICA), flow diverter (FD) stent therapy is becoming increasingly used for these aneurysms. This study aims to evaluate the characteristics of FD placement for unruptured ICA supraclinoid segment aneurysms at 6 different centers with different experience levels in Türkiye.

Methods: In this retrospective, multicenter study, the authors reviewed the demographic information, aneurysm shape/dimensions (neck, aspect ratio, dome/neck ratio, and maximum diameter), preoperative antiplatelet regimen, FD stent brand, perioperative complications, intervention time, clinical (modified Rankin Scale) and radiological (O'Kelly-Marotta [OKM] grading scale) outcomes, and follow-up time of 54 patients.

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Background: Mini/one anastomosis gastric bypass (MGB-OAGB) is a bariatric surgery procedure that has proved effective for weight loss and the resolution of metabolic disorders. The present study evaluates the effect on postoperative outcomes of resecting the corpus and fundus as an addition to OAGB.

Methods: This retrospective study recorded and evaluated the data of 83 patients who underwent laparoscopic OAGB due to morbid obesity (Body Mass Index-BMI ≥ 40 kg/m2 ) in our clinic between January 2018 and January 2020.

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Background: The necessity of computed tomography (CT) has been questioned in pediatric mild traumatic brain injury (mTBI) because of concerns related to radiation exposure. Distinguishing patients with lower and higher risk of clinically important TBI (ciTBI) is paramount to the optimal management of these patients.

Objective: This study aimed to analyze the imaging predictors of ciTBI and develop an algorithm to identify patients at low and high risk for ciTBI to inform clinical decision making using a large single-center cohort of pediatric patients with mTBI.

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Background/aim: Ischemia on the colon wall negatively affects healing of anastomosis. We were aimed to evaluate the effects of carbon monoxide releasing molecule-2 (CORM-2) on the healing of anastomosis in a rat model of the ischemic colon.

Materials And Methods: In this prospective study a total of 60 rats were randomly divided into three groups as colon transection and end-to-end anastomosis (Group I), colon transection, and end-to-end anastomosis following the induction of ischemia (Group II), and colon transection and end-to-end anastomosis following the induction of ischemia and treated with daily intraperitoneal administration of CORM-2 (Group III).

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We propose a new STAckable Recurrent cell (STAR) for recurrent neural networks (RNNs), which has fewer parameters than widely used LSTM [16] and GRU [10] while being more robust against vanishing or exploding gradients. Stacking recurrent units into deep architectures suffers from two major limitations: (i) many recurrent cells (e.g.

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Purpose: To evaluate choroidal thickness, intraocular pressure (IOP), axial length, central corneal thickness (CCT), lens thickness, anterior chamber depth, and ocular pulse amplitude (OPA) in hemodialysis patients.

Materials And Methods: The patients with end-stage renal disease and undergoing hemodialysis were included in the study. Immediately before and 1 hour after hemodialysis, all patients underwent measurement of choroidal thickness with spectral domain optical coherence tomography (SD-OC, Cirrus HD-OCT; Carl Zeiss Meditec Inc.

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Exosomes are naturally secreted nano-vesicles consisting of biochemical molecules including RNAs, metabolites, lipids, and proteins, that emerge as diagnostic tools and disease-specific reporters. Here we offer a systematic and integrative approach for the simultaneous analysis of altered molecules namely metabolites, lipids, and proteins. These components tend to augment the discovery of low abundance signature components, and assist in explanation of molecular basis of colorectal cancer (CRC).

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Objectives: This study aims to investigate the effects of topical rifamycin SV application on epidural fibrosis formation in a rat model.

Materials And Methods: Between March 2015 and April 2015, a total of 20 Wistar rats were equally and randomly divided into laminectomy only group (control group) and laminectomy and rifamycin SV group (treatment group). Laminectomy was performed between L3-L5 in all rats.

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This video demonstrates the resection of an anterolateral mesencephalic cavernous malformation (CM) through a transsylvian/transuncal approach. A 10-year-old girl presented with progressive headache and left-sided spastic hemiparesis. Neuroimaging revealed a 20-mm CM located in the right anterolateral midbrain/cerebral peduncle.

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Background: To study the anti-edematous, anti-inflammatory, and neuroprotective effect of etanercept in the model of experimental head injury.

Methods: In this study, 40 male-adult Spraque-Dawley rats, with weight ranging from 250g to 300g, were used. The rats are divided into groups as control; non-penetrating trauma; trauma +NS; post-traumatic normal saline; trauma + D; post-traumatic dexamethasone and trauma + E.

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Rebleeding of cerebral aneurysms has been previously reported during diagnostic angiography. However, capturing the exact moment of active rebleeding of a cerebral aneurysm during angiography is extremely rare. Here, a case of a rebleeding middle cerebral artery aneurysm during diagnostic digital subtraction angiography (DSA) was illustrated, accompanied with a video demonstration of the incident which is the only one in the literature.

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Background: The development of secondary brain injury via oxidative stress after traumatic brain injury (TBI) is a well-known entity. Consequently, the aim of the present study was to evaluate the role of omeprazole (OM) on rat model of TBI.

Methods: A total of 24 male rats were used and divided into 4 groups as follows; control, trauma, OM, and methylprednisolone (MP).

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Background: The indications for lymph node dissection (LND) for intrahepatic cholangiocarcinoma (ICC) are controversial.

Methods: Seventy patients with mass-forming dominant ICC underwent hepatectomy with systematic LND or lymph node sampling between 2003 and 2013. We defined the computed tomography (CT) ratio as the CT value (Hounsfield units) of the tumor divided by the CT value (Hounsfield units) of the liver parenchyma in the late arterial phase, and investigated the indications for LND with hepatectomy for ICC.

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Boerhaave syndrome describes a transmural oesophageal rupture that develops following a spontaneous, sudden intraluminal pressure increase (i.e. vomiting, cough).

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Background: The aim of this study was to clarify the clinicopathologic characteristics of hypervascular intrahepatic cholangiocarcinoma (ICC).

Methods: Seventy patients with a mass-forming type ICC underwent hepatectomy between 2003 and 2013. These patients were divided into 2 groups and compared based on findings during the late arterial phase of computed tomography: hypervascular ICC (the mean computed tomography value of the tumor ≥ that of the nontumorous liver parenchyma, n = 21), and hypovascular ICC (n = 49).

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Purpose: To investigate whether topically administered hemostatic agents ankaferd blood stopper and microporous polysaccharide hemospheres can decrease epidural fibrosis after laminectomy in rats.

Methods: Eighteen adult male Sprague-Dawley rats were equally and randomly divided into three groups. In the treatment groups, ankaferd blood stopper and microporous polysaccharide hemospheres topically administrated upon duramater surface after laminectomy.

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Introduction: Hepatic ischemia/reperfusion injury may occur after large tumor resection and liver transplantation procedures. Nitric oxide was shown to have protective effects on ischemia/reperfusion injury. Nebivolol is a compound that has been reported to improve nitric oxide release.

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Purpose: This study aimed to assess the effect of intraoperative PEEP intervention on the healing of colonic anastomoses in rabbits.

Materials And Methods: Thirty-two New Zealand type male rabbits were divided into two groups of sixteen animals each. Following ventilation with tracheostomy, colonic resection and anastomosis were performed in both groups.

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Congenital anomalies of pancreas and its ductal drainage are uncommon but in general surgically correctable causes of recurrent pancreatitis. A gastric duplication cyst communicated with an accessory pancreatic lobe is an extremely rare cause of recurrent pancreatitis, but an early and accurate diagnosis of this anomaly is important because suitable surgical treatment may lead to a satisfactory outcome. Herein, we presented multidetector computed tomography and magnetic resonance imaging findings of a gastric duplication cyst communicating with an accessory pancreatic lobe via an aberrant duct in a 29-year-old woman with recurrent acute pancreatitis and also reviewed other similar cases reported in the literature.

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