Publications by authors named "Karahan M"

Objective: This study investigated the effects of sleep deprivation (SD) on balance after normal sleep, 24 h of SD, and subsequent rest under eyes-open (EO) and eyes-closed (EC) conditions. Our aim was to ascertain whether the reduced efficiency of balance control following SD is generalized or selective.

Method: Nineteen participants (12 females, 7 males) completed the Pittsburgh Sleep Quality Index (PSQI).

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Background: Sarcopenia is a progressive age-related skeletal muscle disease associated with adverse outcomes in those with cardiovascular disease. In this study, the prevalence of sarcopenia and its effect on clinical outcomes in heart failure with mildly reduced ejection fraction (HFmrEF) patients were examined.

Methods: A total of 722 patients from three centres who applied to the outpatient clinic with the diagnosis of HFmrEF between 01 January 2020 and 01 June 2021 were included in the study retrospectively.

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Article Synopsis
  • Testing the biocompatibility of dental materials is crucial and this study focused on four specific materials: Mineral Trioxide Aggregate, Biodentine, Harvard BioCal-CAP, and Oxford ActiveCal PC.
  • The evaluation used zebrafish embryos and larvae to assess survivability, hatching rates, and apoptosis through various toxicity tests.
  • Results indicated that higher concentrations of these materials negatively affected survival and hatching, with Biodentine and Oxford ActiveCal PC showing better biocompatibility than Mineral Trioxide Aggregate.
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Background: This study is a randomized controlled, biopsychosocial study investigating the effectiveness of pain neuroscience education (PNE) and motor imagery-based exercise protocol (MIEP) on fibromyalgia pain.

Methods: Our study has four groups (MIEP n = 12, PNE n = 12, MIEP + PNE n = 14, Control n = 12) and all participants (n = 50) consist of patients diagnosed with fibromyalgia with chronic back pain. The primary outcome measure was pain intensity, and secondary outcome measures were beliefs, kinesiophobia, anxiety-depression, cognitive-mood, self-esteem, and body awareness.

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Introduction: Parkinson disease is the world's second most prevalent neurological disease. In this disease, intracytoplasmic neuronal inclusions are observed in enteric neurons in the gastrointestinal tract, and the composition of the intestinal microbiome is altered. These changes correlate with the motor phenotype.

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The traconia fish fish poisons people it comes into contact with using the spiny structure on its back. In this case, we report the exposure of a 62-year-old housewife to a dead traconia fish while cleaning the fish. The patient came to the emergency room with unbearable pain and burning sensation in his hand.

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Article Synopsis
  • The study aimed to investigate how different anesthesia methods and perioperative procedures affect mortality in older patients undergoing hip fracture surgery.
  • Analysis of data from 451 patients revealed no significant difference in mortality rates based on anesthesia methods used.
  • Key factors associated with increased mortality included being male, receiving more blood transfusions, having a higher ASA score, and having a higher modified Charlson comorbidity index.
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Introduction In this study, we aimed to measure the change in total antioxidant status (TAS), total oxidant stress (TOS), oxidative stress index (OSI), and nuclear factor erythroid 2 (Nrf-2) levels during the treatment period in patients who restored spontaneous circulation return after cardiac arrest with targeted temperature management (TTM) therapy in our hospital. Methods The study included 36 patients who were hospitalized in the anesthesia intensive care unit and coronary intensive care unit of our hospital and were treated with TTM therapy after cardiac arrest. TAS, TOS, OSI, and Nrf-2 levels were measured at 0 (beginning), 12, 24, and 48 (end) hours of TTM therapy.

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Background: Dental education is one of the disciplines where students are most significantly affected psychologically. The aim of this study was to evaluate the relationship between spiritual health, resilience and happiness levels of dental students at a state university in Turkey.

Methods: This cross- sectional study included 212 students from the 3rd, 4th and 5th grades of the faculty of dentistry.

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Background: The posterior tibial slope (PTS) is an important feature in knee joint biomechanics and indicates anterior-posterior knee stability. Increased PTS is a known risk factor for both primary anterior cruciate ligament (ACL) rupture and postreconstruction rerupture.

Purpose: To investigate the effect of long-term exposure to ACL deficiency on the PTS and the sagittal anatomy of the proximal tibia.

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Propolis, a natural product collected by honeybees from various plant sources, has gained significant attention due to its diverse bioactive compounds and potential therapeutic properties. To further explore its contents and biological activities, this study aimed to analyze the phenolic compounds in Siirt propolis extracts obtained using different solvents, namely ethanol, water, and ethanol-water mixtures. The primary objective of this research was to investigate the phenolic profile, as well as the antidiabetic and antioxidant activities of the propolis extracts.

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Background: Sleep deprivation (SD) impairs pre-stimulus inhibition, but the effect of quetiapine (QET) remains largely unknown.

Objective: This study aimed to investigate the behavioral and cognitive effects of QET in both naïve and sleep-deprived rats.

Materials And Methods: Seven groups ( = 49) of male Wistar Albino rats were used in this study.

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Introduction: The aim of this study was to assess the impact of aortic angulation (AA) on periprocedural and in-hospital complications as well as mortality of patients undergoing Evolut™ R valve implantation.

Methods: A retrospective study was conducted on 264 patients who underwent transfemoral-approach transcatheter aortic valve replacement with self-expandable valve at our hospital between August 2015 and August 2022. These patients underwent multislice computer tomography scans to evaluate AA.

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Objective: The principal aim of this research is to investigate the variables that exert a discernible impact on the overall survival (OS) of individuals afflicted with colorectal cancer (CRC) harboring pathologic stages 2-3, as delineated within the TNM staging schema tailored to CRC, an established framework governed by the American Joint Committee on Cancer (AJCC).

Patients And Methods: Patients with preoperative stages 1 and 4, patients with a history of other organ malignancy, patients who could not undergo curative resection, patients with systemic malignant diseases (leukemia, lymphoma, etc.), patients with synchronous tumors, and patients with positive surgical margins were excluded from the study.

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Background: Cardiac implantable electronic device (CIED) procedures are prone to complications. In our study, we investigated the effect of body mass index (BMI) on CIED-related complications.

Methods: 1676 patients who had undergone CIED surgery (de novo implantation, system upgrade, generator change, pocket revision or lead replacement) at two heart centers in Turkey and met the study criteria were included in our study.

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Pit and fissure sealants play an essential role in preventive dentistry. This study evaluates the microleakage levels of a new and colored flowable composite applied as a sealant after three preparation techniques. A total of 24 non-carious mandibular permanent molars with deep pits and fissures were included in the study.

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The attitudes of anatomists toward donating their own bodies are a question of matter in the literature of medicine. The aim of the study was to evaluate the attitudes of Turkish anatomists regarding the donation of their own bodies as teaching material after death. A descriptive cross-sectional study was conducted among anatomists in Türkiye during the months of March and April 2023.

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Aim: Blunt traumatic thoracic aortic injury (BTAI) is a highly fatal surgical emergency and is treated with endovascular procedures. We aimed to analyze and report the early and midterm outcomes of surgeon-modified fenestrated stent-grafts (SMFSG) compared with other conventional endovascular methods in patients with BTAI repaired with zone 2 endovascular surgery.

Materials And Methods: Before and after the study was performed, from January 2015 to January 2020 for a period in which conventional endovascular treatments were used and from January 2020 to January 2023 for the second period in which the SMFSG technique was used.

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Objective: The aim of our study was to compare the traditional radial artery, distal radial artery, and transfemoral artery, which are vascular access sites for coronary angiography, in terms of pain level using the visual analog scale.

Methods: Between April 2021 and May 2022, consecutive patients from three centers were included in our study. A total of 540 patients, 180 from each of the traditional radial artery, distal radial artery , and transfemoral artery groups, were included.

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The development of novel vaccine formulations against tuberculosis is necessary to reduce the number of new cases worldwide. Polymeric nanoparticles offer great potential as antigen delivery and immunostimulant systems for such purposes. In the study, we have encapsulated the antigenic peptide epitope of ESAT-6 protein of M.

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Background: The aim of the study is to compare the results of patients who had moderate or severe tricuspid insufficiency (TI) at the time of left ventricular assist device (LVAD) implantation that did not undergo intervention.

Methods: Between October 2013 and December 2019, 144 patients who did not undergo tricuspid valve repair (TVR) during LVAD implantation in our department were included in the study. The patients were divided into two groups according to the TI grade; Group 1: 106 patients (73.

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Objective: In the present study, we sought to evaluate the results of hearing loss in AF patients.

Patients And Methods: This study involved 50 patients with AF, as determined by means of electrocardiogram, and 50 patients without AF. The pure-tone audiometry (PTA) threshold values were measured at low, medium and high frequencies for both ears.

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Objective: Esophagogastroduodenoscopy (EGD) is recommended for patients over 60 years old with dyspeptic complaints, treatment-resistant dyspepsia, and alarming symptoms such as vomiting, weight loss, and dysphagia. However, colonoscopy is recommended for patients with abnormal colonic loops in their imaging, lower gastrointestinal bleeding-iron deficiency anemia, or patients with symptoms related to the lower gastrointestinal tract. This study aimed to analyze the possibility of performing concurrent colonoscopy when it is indicated and whether this may affect endoscopic and histological findings.

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This study aims to evaluate the mid-term results of patients who underwent medial pivot total knee arthroplasty at a single center. A total of 304 knees of 236 patients (40 males, 196 females; mean operation age and standard deviation : 66,64 ±7,09 years; range, 45 to 82 years) treated with medial pivot total knee prosthesis in our center between January 2010 and December 2014 were retrospectively analyzed. The American Knee Society Score, Oxford Knee Score, and especially flexion angles were recorded during pre- and postoperative follow-up.

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