Publications by authors named "Ucan B"

Patients with primary hyperparathyroidism (PHPT) are predisposed to hypomagnesemia as well as hypophosphatemia. In the current literature, scarce data was available on the clinical significance of hypomagnesemia in PHPT. The present study aimed to investigate the prevalence of hypomagnesemia and its association with complications of PHPT in a large nationwide cohort.

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  • - The study investigates the ECG characteristics of 103 acromegaly patients to assess the risk of cardiovascular complications and life expectancy, highlighting the significance of the Tp-e interval and its ratios as indicators of ventricular arrhythmia risk.
  • - Results show that patients with both baseline and current ECGs experienced a decrease in heart rate, QRS duration, and several arrhythmia parameters, which were similarly affected regardless of whether the patients were in active or remission stages of the disease.
  • - The conclusion emphasizes that treatment leads to improved ventricular arrhythmia parameters in acromegaly patients, which correlates with a significant reduction in IGF-1 levels, even in those with ongoing active disease.
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  • The study investigates the role of genetic factors in infantile hypertrophic pyloric stenosis and its associated rare diseases.
  • It involves a retrospective analysis of neonates from 2000 to 2022 who underwent surgery for this condition and had additional health complications.
  • The findings indicate that 9.8% of these patients had a rare disease, emphasizing the need for early diagnosis and treatment to improve health outcomes.
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Background: In recent years, there has been increasing data showing that the risk of acute pancreatitis (AP) is increased in patients using methimazole (MMI). The aim of this population-based study was to investigate the association between drugs used in the treatment of hyperthyroidism (MMI, PTU, propranolol) and the diagnosis of AP.

Material And Methods: The database consisted of more than 85 million citizen records between January 1, 2017 and December 31, 2022.

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Introduction: Understanding the variations of abdominal vascular structures is important for preventing complications of abdominal surgical procedures for gastrointestinal disease such as necrotizing enterocolitis or others that may arise in patients with congenital cardiac disease. We analysed the coeliac trunk and its branches in children with congenital heart disease to determine whether there is a greater prevalence of associated vascular abnormalities.

Methods: We retrospectively analysed thoracic computed tomography (CT) angiograms performed in our hospital in paediatric patients with congenital heart disease.

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  • Cardiac rhabdomyoma is the most common benign heart tumor in children, often linked to tuberous sclerosis, and this study analyzed cases diagnosed in newborns at a single center.
  • Over 12 years, 12 newborns were evaluated, revealing that half had tuberous sclerosis and highlighting the average age for diagnosis and treatment experiences with everolimus.
  • The findings indicate that many cardiac rhabdomyomas shrink on their own, but proper monitoring is essential, especially for those with severe cases that could lead to life-threatening issues.
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Objectives: This study aims to investigate whether the middle ear resonance frequency (RF) is affected in acromegaly, which causes growth in the skull bone.

Methods: Thirty acromegaly patients and 38 volunteers were included in the study. Pure tone average scores and middle ear RF values of the groups that underwent pure tone audiometry, tympanometry, and multifrequency tympanometry tests were compared.

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Background/aim: To reveal the impacts of dapagliflozin, a sodium glucose transporter-2 inhibitor (SGLT-2i), on body weight and body composition, cardiovascular risk indices, and carotid intima-media thickness (CIMT).

Materials And Methods: The data of patients with type-2 diabetes mellitus (T2DM) who applied to Department of Endocrinology and Metabolic Disorders between September 2019 and 2020, and had started dapagliflozin treatment along with their current medications were recorded retrospectively. Body weights, body compositions measured through bioelectrical impedance, and CIMT with T2DM receiving SGLT-2i treatment and medication were measured at weeks 1, 12, and 24 of 42.

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Purpose: The purpose of the present paper was to evaluate the clinical and chest radiographic features of pediatric patients with serologically proven Mycoplasma pneumoniae pneumonia.

Materials And Methods: The clinical records and chest radiographs of 55 consecutive patients (28 male, 27 female) with serologically positive IgG mycoplasma pneumonia were reviewed. The pneumonic infiltrates were described on chest radiography into 3 different patterns as a peribronchovascular infiltration, reticulonodular infiltration and consolidation.

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Introduction: Liver biopsies are the main method in the diagnosis and treatment of paediatric liver pathologies. Major complication rates of paediatric liver biopsies range from 0% to 6.6% in the literature and minor complication rates range from 0% to 25%.

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Purpose: The aim of this study was to investigate the prevalence of simple renal cysts (SRCs) and kidney stone disease (KSD) together with laboratory data in patients with acromegaly through comparisons with healthy subjects, and to examine the possible risk factors associated with these abnormalities in acromegaly.

Methods: This retrospective, single-center study included 125 acromegaly patients (46.4 ± 11.

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Aim: Magnesium (Mg) homeostasis is closely related to calcium (Ca) metabolism. Hypercalcemia inhibits the reabsorption of Mg from the kidneys, leading to hypomagnesemia. Therefore, patients with primary hyperparathyroidism (PHPT) are predisposed to hypomagnesemia.

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  • The article discusses a rare case of a 74-year-old man with diffuse follicular variant papillary thyroid carcinoma that metastasized to the pituitary gland, leading to complications like visual field defects and hormonal deficiencies.
  • Diagnosis and confirmation of the cancer involved imaging, cytological examination, and a total thyroidectomy, which revealed the nature of the tumor and its aggressive behavior.
  • Treatment included surgery for the pituitary mass, radioactive iodine therapy, and initiation of sorafenib, which resulted in a notable decrease in tumor markers, emphasizing the importance of early intervention and multidisciplinary care in managing such complex cases.
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Context: The aims of the study are to compare characteristics of subacute thyroiditis (SAT) related to different etiologies, and to identify predictors of recurrence of SAT and incident hypothyroidism.

Methods: This nationwide, multicenter, retrospective cohort study included 53 endocrinology centers in Turkey. The study participants were divided into either COVID-19-related SAT (Cov-SAT), SARS-CoV-2 vaccine-related SAT (Vac-SAT), or control SAT (Cont-SAT) groups.

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Background: Nodular thyroid disease is a frequent finding seen in patients with acromegaly. Ultrasound-elastography (US-E) appears to be a helpful tool for the diagnosis of thyroid cancer. The aims of this study were to evaluate thyroid nodules in acromegaly and to assess the diagnostic accuracy of US-E in detecting thyroid cancer in this population.

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Aim: The levels of serum phosphorus (P) are low or low-normal in primary hyperparathyroidism (PHPT), and there is an inverse relationship between the levels of parathormone (PTH) and P. However, when considering the diagnostic and surgical indication criteria of PHPT, serum P levels are generally ignored. The aim of this study was to retrospectively evaluate the association of serum P levels with the clinical outcomes of PHPT.

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Objective: Despite improvements in diagnostic methods, acromegaly is still a late-diagnosed disease. In this study, it was aimed to automatically recognize acromegaly disease from facial images by using deep learning methods and to facilitate the detection of the disease.

Design: Cross-sectional, single-centre study.

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Purpose: Previous studies have pointed to the role of parathormone (PTH) in the development of simple renal cysts. However, there is insufficient evidence related to simple renal cysts in primary hyperparathyroidism (PHPT). Therefore, this study aimed to evaluate the prevalence and risk factors associated with renal cysts in PHPT patients.

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Background: The nadir growth hormone (nGH) during the oral glucose tolerance test (OGTT) is the gold standard method for diagnosing acromegaly. A paradoxical growth hormone (GH) response to oral glucose (OG) in acromegaly can be observed. The role of the paradoxical GH response on how the patients with acromegaly respond to the treatment has been addressed in few studies.

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Purpose: An increasing number of cases of subacute thyroiditis (SAT) related to the coronavirus disease 2019 (COVID-19) and its vaccines continue to be published. The aim of this study was to investigate any change in the incidence and characteristics of SAT by comparing the pre-pandemic and pandemic periods.

Methods: This retrospective, single-center study included 432 newly-diagnosed SAT patients between January 2018 and December 2021.

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Objective: There is controversy about whether the rates of malignancy and of false-negative malignancy are greater in large nodules. The aim of this study was to determine the reliability of cytology in ≥4cm nodules and to compare malignancy rates between ≥4cm and<4cm nodules.

Methods: The study included 1205 patients who underwent biopsy and subsequent thyroidectomy with the diagnosis of nodular thyroid disease between 2014 and 2019.

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Objective: This study aimed to identify cases of coronavirus disease 2019 (COVID-19) vaccine-associated subacute thyroiditis (SAT) during the active vaccination period of the pandemic, analyze the characteristics of these cases, and compare them with cases of non-vaccine associated SAT diagnosed in the same period.

Methods: A total of 55 patients diagnosed with SAT in our outpatient clinic between February and October, 2021, were included in this retrospective single-center study.

Results: Of the study population, 16 (29.

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Objective: It is reported that adding cabergoline to somatostatin analog (SSA) normalizes IGF-1 levels approximately in one-third of patients with acromegaly. We investigated the effect of combination therapy and potential predictors of response in patients with acromegaly who do not respond to SSA therapy alone.

Methods: Fifty acromegaly patients (M/F 23/27, mean age 50.

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Purpose: Nonhomogenous and ill-defined hypoechoic areas are typical ultrasonographic features of subacute thyroiditis (SAT). Evaluating a thyroid nodule accurately in this heterogeneous paranchime may be troublesome. This study aims to compare thyroid nodules, their characteristics, and European Thyroid Imaging and Reporting Data System (EU-TIRADS) categories at the time of the diagnosis and in the remission of SAT.

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