Publications by authors named "Cakmak A"

Background: Chronic total occlusions with ambiguous proximal caps present a significant challenge in endovascular interventions of patients with Buerger's disease.

Objective: We aimed to evaluate the effectiveness of transpedal retrograde wire just marker technique in patients with Buerger's disease presenting proximal cap ambiguity and flush occlusions.

Methods: Seventeen patients with the diagnosis of Buerger's disease who had below the knee artery chronic total occlusions with ambiguous proximal caps were enrolled.

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Article Synopsis
  • The study focuses on the perovskite oxides XSnO3 (where X is Ca, Mg, or Sr) and investigates their structural, electronic, and optical properties using density functional theory with the FP-LAPW method.
  • It reveals that XSnO3 compounds have robust crystal structures, with key parameters like lattice constants, band gap, density of states, and optical properties thoroughly analyzed.
  • The findings indicate these compounds possess semi-metallic characteristics and highlight their potential for applications in electronics and optoelectronics.
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Introduction: This study aimed to investigate the relationship between acquired antithrombin deficiency in patients undergoing postcardiotomy extracorporeal membrane oxygenation (PC-ECMO) and thromboembolic or haemorrhagic events such as bleeding, peripheral arterial thromboembolism, and ischemic cerebrovascular events.

Methods: The study was designed as a single-center, prospective study and conducted at our hospital between November 2019 and June 2021. 50 patients who underwent ECMO due to postcardiotomy cardiogenic shock were included in the study.

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Background: There is a need to identify the complex interplay between various physiological mechanisms in primary ciliary dyskinesia (PCD) and cystic fibrosis (CF). The study investigated the interaction between respiratory function, exercise capacity, muscle strength, and inflammatory and oxidant/antioxidant responses in patients with PCD and CF.

Methods: The study included 30 PCD patients, 30 CF patients, and 29 age and sex-matched healthy subjects.

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Introduction: The systemic immune inflammation index (SII), based on lymphocyte, neutrophil, and platelet counts, has been shown to be an independent indicator of no-reflow phenomenon during percutaneous intervention. However, the relationship between SII and no-reflow phenomenon (NRP) that develops after the procedure of saphenous vein grafts is unknown.

Aim: In this study, we aimed to investigate the relationship between no-reflow phenomenon and SII during percutaneous intervention on saphenous vein grafts.

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  • Hydrocele is caused by fluid accumulation in the scrotum due to a patent processus vaginalis, and this study compares traditional open repair (OR) with laparoscopic repair (LR) techniques in a single medical center.
  • A retrospective analysis of 113 patients who underwent hydrocele repair between August 2016 and November 2022 showed that OR was the standard method until late 2021, when LR began to gain preference due to its observed success.
  • The results indicated that the recurrence rate for LR was significantly lower at 2.12% compared to 10.6% for OR, suggesting that laparoscopy provides better visualization and can effectively address intrabdominal connections associated with hydrocele.
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Purpose: The main feature of Graves ophthalmopathy (GO) is revealed by determining the activity and severity of the disease. We aimed to evaluate the use of imaging methods can also provide additional information about the severity of this disease.

Methods: Optical coherence tomography (OCT) and shear wave elastography (SWE) findings were compared in 32 patients with mild GO group and in the healthy control group.

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Purpose: To assess the optic disc and retinal microvasculature by optical coherence tomography angiography (OCTA) in asthmatic children.

Materials And Methods: Thirty asthmatic children (asthma group) and 30 control age- and sex-matched healthy controls (control group) were included in this cross-sectional study. The asthma group was then divided into two subgroups according to the presence of inhaled steroid use.

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The scattering of electromagnetic waves by isotropic dielectric cylinders can be dramatically modified by means of vanadium dioxide (VO2) thin-film coatings. Efficient dynamic control of scattering is achieved due to the variations in material parameters realizable by means of external biasing. In this paper, we study the scattering of terahertz waves in a case where the coating shells are made of VO2, a phase-change material, whose thin films may work rather as electromagnetic phase screens in the insulator material phase, but as lossy quasi-metallic components in the metallic material phase.

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Background: The 'golden 72 hours' rule from the onset of symptoms still applies in laparoscopic cholecystectomy for acute cholecystitis. This rule has been discussed with increasing experience in laparoscopic surgery in recent years.

Objective: This study aims to determine the optimal symptom duration based on the surgeon's volume when deciding on early laparoscopic cholecystectomy for acute cholecystitis.

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The CRISPR/Cas9 mechanism offers promising therapeutic approaches for bone regeneration by stimulating or suppressing critical signaling pathways. In this study, we aimed to increase the activity of BMP-2 signaling through knockout of , thereby establishing a synergistic effect on the osteogenic activity of cells in the presence of BMP-2. Since is an antagonist expressed in skeletal tissues and binds to subunits of bone morphogenetic proteins (BMPs) to inhibit osteogenic differentiation, here expression was knocked out using the CRISPR/Cas9 system.

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Objective: The Nijmegen Questionnaire (NQ) enables the assessment and identification of symptoms related to respiratory dysfunction and hyperventilation syndrome. The aim was to investigate the validity of the Turkish version of the NQ in asthmatics.

Material And Methods: Fifty-four individuals with asthma were included.

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Background: It is known that vertical transmission of various infections poses a potential risk to the fetus, especially in early pregnancy. Potential effects of SARS-CoV-2 infection on early pregnancy and placental formation and functions still remain unknown.

Aim: To determine the alterations of prenatal aneuploidy screening markers in a group of pregnant women who were SARS-CoV-2 positive during the first trimester.

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Introduction: Obesity is associated with pelvic floor disorders (PFD). Sleeve gastrectomy (SG) is one of the most effective weight loss methods. Although SG has been found to improve urinary incontinence (UI) and overactive bladder (OAB), its impact on fecal incontinence (FI) remains controversial.

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Objective: We aimed to investigate the relationship between gestational diabetes mellitus (GDM) and maternal serum hepassocin concentrations.

Materials And Methods: This cross-sectional study was conducted with 88 pregnant women who applied to the Ümraniye Training and Research Hospital Gynecology and Obstetrics Clinic between April 2022 and November 2022. The GDM group consisted of 44 pregnant women who had a 75-g OGTT between the 24th and 28th week of pregnancy and were diagnosed with GDM.

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Objective: The purpose of this study was to compare the upper extremity exercise capacity and activities of daily living (ADL) in individuals with bronchiectasis and controls.

Methods: Twenty-four individuals with bronchiectasis and 24 healthy controls were assessed for upper extremity exercise capacity (6-minute pegboard and ring test [6PBRT]) and ADL (Glittre ADL test). Energy expenditure was measured using a wearable metabolic monitor during the Glittre ADL test.

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Background: There is currently a need to identify metabolomic responses to acute exercise in chronic obstructive pulmonary disease (COPD).

Objective: We investigated the metabolomic, oxidative, and inflammatory responses to constant (CE) and intermittent (IE) work rate exercises in COPD.

Methods: Sixteen males with COPD performed a symptom-limited incremental cycle exercise test (ICE).

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Background: The use of a venoarterial extracorporeal membrane oxygenation (ECMO) in the postcardiotomy shock setting (PC-ECMO) can be life-saving. Risk stratification for patients under PC-ECMO is currently challenging. The aim of this study was to assess the discriminatory ability of the different available risk scores for mortality in PC-ECMO patients.

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Importance: Adverse posttraumatic neuropsychiatric sequelae after traumatic stress exposure are common and have higher incidence among socioeconomically disadvantaged populations. Pain, depression, avoidance of trauma reminders, reexperiencing trauma, anxiety, hyperarousal, sleep disruption, and nightmares have been reported. Wrist-wearable devices with accelerometers capable of assessing 24-hour rest-activity characteristics are prevalent and may have utility in measuring these outcomes.

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Steal syndrome causing limb ischemia is a rare but important complication of arteriovenous fistulas. When surgical or endovascular means to resolve ischemia are inconclusive, closure of the fistula becomes required. Our case presented with lower extremity ischemia resulting from an arteriovenous fistula graft.

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This study explores the machine learning-based assessment of predisposition to colorectal cancer based on single nucleotide polymorphisms (SNP). Such a computational approach may be used as a risk indicator and an auxiliary diagnosis method that complements the traditional methods such as biopsy and CT scan. Moreover, it may be used to develop a low-cost screening test for the early detection of colorectal cancers to improve public health.

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Background: Heart failure (HF) is a major cause of frequent hospitalization and death. Early detection of HF symptoms using smartphone-based monitoring may reduce adverse events in a low-cost, scalable way.

Objective: We examined the relationship of HF decompensation events with smartphone-based features derived from passively and actively acquired data.

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Micro- or nano-surface topography of a biomaterial can improve various cellular activities for obtaining functional tissues. Electrospun fibers can gain further functionality when introduced topographic details to their surfaces. In this regard, we produced random and aligned polycaprolactone (PCL) micron/submicron fibers by the electrospinning method.

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Purpose: To describe the management and outcome of two extremely rare and painful cases of Mooren's ulcer, an idiopathic peripheral autoimmune-associated ulcerative corneal disease.

Methods: Case report with literature review on the management of ocular inflammation in Mooren's ulcer.

Results: A 47-year-old female and a 76-year-old female presented with progressive bilateral Mooren's ulcer that were refractory to conventional immunosuppressive therapy.

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Background: The aim of this study is to determine the effects of local anesthetics administered intraperitoneally in laparoscopic appendectomy.

Methods: Patients who underwent laparoscopic appendectomy due to acute appendicitis were enrolled in the study. The children were divided into two groups.

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