9 results on '"Şahbender Koç"'
Search Results
2. A possible follow‐up method for diabetic heart failure patients
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Şahbender Koç
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Heart Failure ,medicine.medical_specialty ,Osmotic concentration ,business.industry ,General Medicine ,Vacuole ,Diabetic heart ,Osmosis ,medicine.disease ,Transient receptor potential channel ,Treatment Outcome ,medicine.anatomical_structure ,Diabetes Mellitus, Type 2 ,Internal medicine ,Lens (anatomy) ,Heart failure ,Diabetes mellitus ,medicine ,Cardiology ,Humans ,sense organs ,business ,Sodium-Glucose Transporter 2 Inhibitors ,Follow-Up Studies - Abstract
INTRODUCTION Plasma osmolarity is maintained through various mechanisms. The osmolarity of the aqueous humor around the crystalline lens is correlated with plasma osmolarity. A vacuole can be formed in the lens upon changes in osmolarity. The sodium-glucose cotransporter 2 inhibitors (SGLT2i) are new in the treatment of heart failure. They can cause osmotic diuresis but do not affect plasma osmolarity. OBJECTIVE It is unclear if the presence or absence of lens vacuole changes can monitor diabetic heart failure and SGLT2i treatment efficacy. METHODS Web of Science, PubMed and Scopus databases were searched for relevant articles about osmolarity, diabetes, transient receptor potential vanilloid channel, diabetic heart failure, lens vacuoles up to May 2021. MAIN MESSAGE The effect of SGLT2i on osmosis underlies its benefit to heart failure, but this in turn affects many other mechanisms. Failure to experience osmolarity changes will reduce the negative changes in terms of heart failure affected by osmolarity. A practical observable method is needed. CONCLUSIONS There is a possibility of using lens vacuoles in the follow-up of diabetic heart failure patients.
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- 2021
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3. The effect of idiopathic premature ventricular complexes on left ventricular ejection fraction
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Ibrahim Halil Tanboga, Hazar Harbalıoğlu, Murat Çap, Yavuz Karabağ, Erkan Baysal, Veysel Ozan Tanık, Abdulmecit Afsin, İlyas Kaya, Flora Ozkalayci, Adem Atici, Abdulkadir Uslu, Ayça Gümüşdağ, Hayrudin Alibaşiç, Ayhan Kup, Halil Akın, Göksel Çinier, Adem Aktan, Selim Ekinci, Bernas Altıntaş, Şahbender Koç, Hasan Ali Barman, Abdurrahman Akyüz, Mehmet Fatih Yılmaz, Sevgi Özcan, and Raşit Onuk
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Adult ,Male ,medicine.medical_specialty ,Cardiomyopathy ,030204 cardiovascular system & hematology ,Logistic regression ,Ventricular Dysfunction, Left ,03 medical and health sciences ,QRS complex ,0302 clinical medicine ,Physiology (medical) ,Internal medicine ,premature ventricular complexes ,medicine ,Humans ,In patient ,cardiovascular diseases ,030212 general & internal medicine ,Proportional odds ,Premature ventricular complexes ,Ejection fraction ,business.industry ,Stroke Volume ,left ventricular ejection fraction ,Original Articles ,General Medicine ,Middle Aged ,Nomogram ,medicine.disease ,Ventricular Premature Complexes ,Nomograms ,Cross-Sectional Studies ,Echocardiography ,Electrocardiography, Ambulatory ,cardiovascular system ,Cardiology ,Female ,Original Article ,Cardiology and Cardiovascular Medicine ,business ,cardiomyopathy ,circulatory and respiratory physiology - Abstract
Aim Current literature lacks a definitive threshold of idiopathic premature ventricular complex (PVC) burden for predicting cardiomyopathy (CMP). The main objective of the present study was to evaluate relationship between the PVC burden and left ventricular ejection fraction (LVEF). Method This multicenter, cross‐sectional study included 341 consecutive patients with more than 1,000 idiopathic PVC in 24 hr of Holter monitoring admitted to the cardiology clinics between January 2019 and May 2019 in the nineteen different centers. The primary outcome was the LVEF measured during the echocardiographic examination. Result Overall, the median age was 50 (38–60) and 139 (49.4%) were female. Percentage of median PVC burden was 9% (IQR: 4%–17.4%). Median LVEF was found 60% (55–65). We used proportional odds logistic regression method to examine the relationship between continuous LVEF and candidate predictors. Increase in PVC burden (%) (regression coefficient (RE) −0.644 and 95% CI −1.063, –0.225, p
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- 2019
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4. Does a change in iris diameter indicate heart rate variability?
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Sadettin Selcuk Baysal, Kerem Ozbek, and Şahbender Koç
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Pulmonary and Respiratory Medicine ,medicine.medical_specialty ,Entire population ,urogenital system ,business.industry ,Intraclass correlation ,urologic and male genital diseases ,Positive correlation ,Correlation ,03 medical and health sciences ,0302 clinical medicine ,medicine.anatomical_structure ,Internal medicine ,Pediatrics, Perinatology and Child Health ,Cardiology ,Medicine ,Population study ,Heart rate variability ,030211 gastroenterology & hepatology ,cardiovascular diseases ,Iris muscle ,Iris (anatomy) ,business ,030217 neurology & neurosurgery - Abstract
The existence of the retinohypothalamic pathway suggests that light may influence autonomic outflow activity. The objective of this study was to examine the correlation between the estimated iris muscle sympathetic-parasympathetic area (IRIS) ratio and the sympathetic?parasympathetic ratio (Low Frequency (LF)/High Frequency (HF) ratio). The study population consisted of 200 females and 200 males (mean age, 32.4 ± 7.1 y). The IRIS ratio was determined from digital photographs of the iris in a computer setting. The LF/HF ratio was determined from records of heart rate variability obtained using a Holter implementation. The minimum LF/HF ratio was 1.4 and the maximum 5.6 (mean, 3.0 ± 0.8). The minimum IRIS ratio was 1.4 and the maximum 4.9 (mean, 2.7 ± 0.6). A strong positive correlation was determined between the LF/HF and IRIS ratios in the entire population (r=0.825; p
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- 2018
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5. Coronary Slow Flow Accompanying Exertional Blurred Vision and Effects of Corticosteroids
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Hakan Aksoy, Osman Bektaş, Barış Dindar, Zeki Yüksel Günaydın, Aslı Vural, Şahbender Koç, Ahmet Karagöz, Fakülteler, Tıp Fakültesi, Dahili Tıp Bilimleri Bölümü, Kardiyoloji Ana Bilim Dalı, Vural, Aslı, and Karagöz, Ahmet
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Adult ,Male ,medicine.medical_specialty ,Vision, Low ,Coronary Angiography ,Chest pain ,Coronary circulation ,Blurred vision ,Coronary Circulation ,Internal medicine ,medicine.artery ,medicine ,Humans ,Endothelial dysfunction ,Desoxycorticosterone ,Glucocorticoids ,Microvascular Angina ,business.industry ,Articles ,General Medicine ,Atherosclerosis ,medicine.disease ,Coronary Vessels ,Coronary arteries ,medicine.anatomical_structure ,Right coronary artery ,Cardiology ,No-Reflow Phenomenon ,medicine.symptom ,business ,Blood Flow Velocity ,TIMI ,Artery - Abstract
WOS: 000374330000069 PubMed: 26008865 Patient: Male, 44 Final Diagnosis: Coronary slow flow Symptoms: Blurring of vision . chest pain Medication: - Clinical Procedure: Medical treatment Specialty: Cardiology Objective: Unusual clinical course Background: Various pathophysiological mechanisms such as microvascular and endothelial dysfunction, small vessel disease, diffuse atherosclerosis, and inflammation have been held responsible in the etiology of coronary slow flow. It is also thought to be a reflection of a systemic slow-flow phenomenon in the coronary arterial tree. Case Reports: A 44-year-old man presented with chest pain causing fatigue, together with blurred vision for the last 2 years, which disappeared after resting. He had used corticosteroid therapy for facial paralysis 1 month ago. Coronary slow flow was detected in all 3 major coronary arteries on coronary angiography. TIMI measurements for the left anterior descending artery, circumflex, and right coronary artery were 64, 72, and 55, respectively. In fundus fluorescein angiography, retinal vascularity was normal, the arm-to-retina circulation time was 21.8 s, and the arteriovenous transit time was 4.3 s. In the early arteriovenous phase, choroidal filling was long, with physiological patchy type. Diltiazem 90 mg/day and acetylsalicylic acid 100 mg/day were given. His chest pain and visual symptoms disappeared after medical treatment. Conclusions: Physicians should be aware that glucocorticoids might cause an increase in the symptoms of coronary slow flow and some circulation problems, which might lead to systematic symptoms.
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- 2015
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6. Evaluation of Circulation Disorder in Coronary Slow Flow by Fundus Fluorescein Angiography
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Alp Aydinalp, Şahbender Koç, Bülent Özin, Cihan Altin, Rana Altan Yaycıoğlu, and Haldun Muderrisoglu
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Male ,medicine.medical_specialty ,Fundus Oculi ,Coronary Artery Disease ,Retina ,Microcirculation ,Coronary artery disease ,chemistry.chemical_compound ,Coronary circulation ,Retinal Diseases ,Coronary Circulation ,Internal medicine ,medicine ,Humans ,Fluorescein Angiography ,medicine.diagnostic_test ,business.industry ,Central serous retinopathy ,Reproducibility of Results ,Retinal ,Middle Aged ,medicine.disease ,Fluorescein angiography ,medicine.anatomical_structure ,chemistry ,Regional Blood Flow ,Cardiology ,Female ,Cardiology and Cardiovascular Medicine ,business ,Artery - Abstract
Coronary slow flow (CSF) may be a reflection of a systemic slow-flow phenomenon in the coronary arterial tree. In this study, the CSF group consisted of 24 men (77.4%) and 7 women (22.5%). An age- and gender-matched normal coronary artery (control) group was composed of 21 men (72.4%) and 8 women (27.5%). Retinal arteriovenous circulation time was measured using fundus fluorescein angiography as a part of the microcirculation and the circulation time between the antecubital vein and the retina as a part of the systemic circulation in patients with CSF and controls with normal coronary arteries. The mean arm-retina circulation time was 19.0 ± 5.7 seconds in the CSF group and 14.1 ± 3.1 seconds in the control group (p
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- 2013
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7. Coronary anatomy, anatomic variations and anomalies: a retrospective coronary angiography study
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Şahbender Koç, Yusuf Gursoy, Uğur Abbas Bal, Aylin Yildirir, Suleyman Kanyilmaz, Cihan Altin, Haldun Muderrisoglu, and Alp Aydinalp
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Adult ,Male ,Myocardial bridge ,medicine.medical_specialty ,Pathology ,Coronary Vessel Anomalies ,Myocardial Infarction ,Coronary Artery Disease ,Coronary Angiography ,Asymptomatic ,Sudden death ,Death, Sudden ,incidences ,Internal medicine ,medicine.artery ,medicine ,Humans ,Circumflex ,Myocardial infarction ,cardiovascular diseases ,variations ,Aged ,Retrospective Studies ,Dominance (genetics) ,business.industry ,coronary anatomy ,Incidence ,Myocardium ,Anatomic Variation ,General Medicine ,Middle Aged ,medicine.disease ,Aneurysm ,Coronary Vessels ,medicine.anatomical_structure ,Right coronary artery ,Arteriovenous Fistula ,Cardiology ,anomalies ,Female ,Original Article ,medicine.symptom ,business ,Artery - Abstract
Introduction The incidence of coronary artery anomalies (CAAs) varies from 0.2% to 8.4%. Knowledge of such anatomical variations is important as coronary procedures are regularly performed these days. We aimed to find the coronary dominance pattern, intermediate artery (IMA) frequency and CAA incidence in our clinic, and compare them to those in the literature. Methods The medical reports of 5,548 patients who had undergone coronary angiography (CAG) between 2005 and 2009 were retrospectively investigated. Dominance pattern and presence of IMA and CAA were recorded. CAAs were described using two different classifications: Angelini and Khatami's classification, and a new modified classification that was derived from Angelini and Khatami's classification. Some procedural details and clinical features of the patients with CAA were also investigated. Results Coronary dominance pattern was: 81.6% right coronary artery, 12.2% circumflex artery and 6.2% co-dominant. IMA was present in 613 (11.0%) patients. The incidences of overall anomaly were 2.7% and 1.4%, according to the different classifications. Absent left main coronary artery, which was the most common anomaly in the present study, was found in 51 (0.9%) patients. Incidences of myocardial bridge, coronary arteriovenous fistulae and aneurysms were 1.1%, 0.2% and 0.3%, respectively. Conclusion CAAs are generally asymptomatic, isolated lesions. Some may lead to anginal symptoms, myocardial infarction or sudden death. We found that CAA was associated with increased radiation and contrast exposure in patients who underwent CAG. This risk could be reduced if appropriate catheters were designed and training programmes on ostial cannulation were developed.
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- 2015
8. PP-002 Acute Myocardial Infarction in a Patient with Single Coronary Artery
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Şahbender Koç, Ahmet Karagöz, Aslı Vural, Barış Dindar, and Hakan Aksoy
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medicine.medical_specialty ,business.industry ,Internal medicine ,Single coronary artery ,medicine ,Cardiology ,Electrocardiography in myocardial infarction ,Myocardial infarction ,Cardiology and Cardiovascular Medicine ,medicine.disease ,business - Published
- 2015
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9. OP-060 Concomitance of Coronary Slow Flow and Ophthalmic Angina and Effects of Corticosteroids
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Şahbender Koç, Barış Dindar, Hakan Aksoy, Aslı Vural, and Ahmet Karagöz
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medicine.medical_specialty ,business.industry ,medicine.medical_treatment ,Thrombolysis ,Blood flow ,Slow Flow ,medicine.disease ,Confidence interval ,Angina ,Internal medicine ,medicine ,Cardiology ,Biomarker (medicine) ,In patient ,Myocardial infarction ,Cardiology and Cardiovascular Medicine ,business - Abstract
A B S T R A C T S phenomenon. In this study, we aimed to study the new biomarker adroin levels as it relates to CSF. Methods: Patients who underwent coronary angiography before and had no significant epicardial coronary disease were included in the study. Patients who had Thrombolysis in Myocardial Infarction frame counts (TFCs) above the normal cutoffs were considered to have CSF and those within normal limits were considered to have normal coronary flow (NCF). The adropin levels and biochemical profiles of all patients were studied and analyzed with coronary flow parameters. Results: There were 58 patients in the CSF group and 50 patients in the NCF group. The mean adropin level was significantly lower in CSF group than in NCF group (3.2 0.71 vs. 4.9 1.51 ng/mL, p < 0.001).There was a significant correlation between the adropin levels and TFC (r1⁄4 0.676, P
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- 2015
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