Bulunan: 29 Adet 0.002 sn
Koleksiyon [9]
Tam Metin [2]
Yayın Türü [2]
Yazar [19]
Yayın Yılı [5]
Konu Başlıkları [20]
Yayıncı [6]
Yayın Dili [1]
Dergi Adı [16]
Large caseous mitral annular calcification: With mitral stenosis, dynamic left ventricular outflow obstruction, and syncope

Akpinar I. | Karabag T. | Sayin M.R. | Yildirim N. | Dogan S.M. | Aydin M.

Article | 2012 | Texas Heart Institute Journal39 ( 6 ) , pp.910 - 912

[No abstract available]

Framingham risk score and severity of coronary artery disease

Sayin M.R. | Cetiner M.A. | Karabag T. | Akpinar I. | Sayin E. | Kurcer M.A. | Dogan S.M.

Article | 2014 | Herz39 ( 5 ) , pp.638 - 643

Objectives. Coronary artery disease (CAD) is a leading cause of morbidity and mortality worldwide. Easy-to-perform and reliable parameters are needed to predict the presence and severity of CAD and to implement efficient diagnostic and therapeutic modalities. We aimed to examine whether the Framingham risk scoring system can be used for this purpose. Methods. A total of 222 patients (96 women, 126 men; mean age, 59.1±11.9 years) who underwent coronary angiography were enrolled in the study. Presence of >%50 stenosis in a coronary artery was assessed as critical CAD. The Framingham risk score (FRS) was calculated for each patient. CA . . .D severity was assessed by the Gensini score. The relationship between the FRS and the Gensini score was analyzed by correlation and regression analyses. Results. The mean Gensini score was 18.9±25.8, the median Gensini score was 7.5 (0-172), the mean FRS was 7.7±4.2, and the median FRS was 7 (0-21). Correlation analysis revealed a significant relationship between FRS and Gensini score (r=0.432, Daha fazlası Daha az

Epicardial mass causing cardiac compression: An unusual involvement in lymphomatoid granulomatosis

Karabag T. | Aydin M. | Barut F. | Buyukates M. | Dogan S.M. | Celik O. | Sayin M.R.

Article | 2012 | Texas Heart Institute Journal39 ( 1 ) , pp.116 - 118

Lymphomatoid granulomatosis is a rare, diffuse, large B-cell lymphoma that is positive for Epstein-Barr virus. A multiorgan process, it manifests itself chiefly in the lungs but can also affect the skin, nervous system, and kidneys. Cardiac involvement and pericardial effusion are very unusual. We report the case of a 62-year-old man with lymphomatoid granulomatosis involving the heart and lungs. Diagnosis was confirmed with wedge biopsy at pericardiotomy, and the patient was treated with cyclophosphamide, prednisolone, and vincristine. Although the patient was still symptomatic at 6-month follow-up, he was in partial remission with . . . improved functional capacity. © 2012 by the Texas Heart ® Institute, Houston Daha fazlası Daha az

Extreme QT Interval Prolongation Caused by Mad Honey Consumption

Sayin M.R. | Dogan S.M. | Aydin M. | Karabag T.

Article | 2011 | Canadian Journal of Cardiology27 ( 6 ) , pp.8.70E+19 - 8.70E+21

An unusual type of food poisoning, mad honey poisoning, is a well-known phenomenon in the Black Sea region of Turkey. Mad honey poisoning can result in severe cardiac complications including sinus bradycardia, nodal rhythm, various degrees of atrioventricular blocks, and even asystole. However, no cases of long QT interval have been reported so far. This paper reports the first case of extremely long QT interval to be associated with mad honey consumption. © 2011 Canadian Cardiovascular Society.

The Value of P wave dispersion in predicting reperfusion and infarct related artery patency in acute anterior myocardial infarction

Karabag T. | Dogan S.M. | Aydin M. | Sayin M.R. | Buyukuysal C. | Gudul N.E. | Demirtas A.O.

Article | 2012 | Clinical and Investigative Medicine35 ( 1 ) , pp.8.70E+19 - 8.70E+21

Purpose: the aim of this study is to investigate whether P wave dispersion (PWD), measured before, during and after fibrinolytic therapy (FT,) is able to predict successful reperfusion and infarct related artery (IRA) patency in patients with acute anterior MI who received FT. Methods: Sixty-eight patients who presented with acute anterior MI were enrolled in the study. An electrocardiogram was performed before and at 30, 60, 90 and 120 minutes after the start of FT. PWD was defined as the difference between maximum and minimum P wave duration on standard 12-lead surface electrocardiogram. A multivariate logistic regression model wa . . .s used to assess whether PWD was predictor of IRA patency and STsegment resolution (STR) on electrocardiogram. Results: PWD 120 was significantly lower in patients with STR on electrocardiogram (38 patients) compared with those without STR (30 patients) (44.8±11.5 vs. 52.9±10.3 ms; p<0.001). PWD 120 was found to be significantly lower in patients with patent IRA (31 patients) compared to those with occluded IRA (37 patients) (42.3±9.7 vs. 53.5±10.6 ms; p<0.001). Logistic regression analysis revealed that PWD120 significantly predicted STR and IRA patency. A ?51.6 ms PWD 120 can predict an occluded IRA with a 87% sensitivity, ?51 ms PWD 120 can predict no reperfusion with a 74% sensitivity. Conclusion: PWD values, which were higher than 51 ms and 51.6 ms in patients who received fibrinolytic therapy, can serve as a marker of failed reperfusion and occluded IRA. PWD values, in combination with other reperfusion parameters, can contribute to the identification of rescue PCI candidates. © 2012 CIM Daha fazlası Daha az

Evaluation of atrial electromechanical delay and left atrial mechanical function in patients with obstructive sleep apnea Cardiac involvement in patients with OSA

Karabag T. | Aydin M. | Altin R. | Dogan S.M. | Cil C. | Buyukuysal C. | Sayin M.R.

Article | 2012 | Wiener Klinische Wochenschrift124 ( 13-14 ) , pp.444 - 452

Objective The aim of this study was to evaluate atrial electromechanical delay measured by tissue Doppler imaging and left atrial mechanical function in patients with obstructive sleep apnea (OSA). Materials and methods Fourty-seven moderate-tosevere OSA patients who were newly diagnosed by poly-somnography (Apnea-hypopnea index ≥15 events/h, 32 males, mean age 49.4±11.5) and 30 patients who had no OSA in polysomnography (Apnea-hypopnea index<5 events/h, 21 males, mean age 45.4±9.1) were included in the study. Using tissue Doppler, diastolic functions, atrial electromechanical coupling were measured from the lateral mitral, se . . .ptal, and tricuspid annulus. Inter, intra, and left atrial electromechanical delay were calculated (lateral-tricuspid, septum-tricuspid, lateralseptal). Left atrial volumes (maximal, minimal, and presystolic) were measured by the method of discs in the apical four-chamber view and were indexed to body surface area. Mechanical function parameters of the left atrium were also calculated. Results Interatrial, intraatrial, and left atrial electromechanical delays were significantly higher in the OSA group compared to the control group. Passive emptying fraction was significantly decreased, volume at the beginning of atrial systole and active emptying volume were significantly increased in OSA patients compared to the controls. The apnea-hypopnea index was significantly associated with interatrial and intraatrial electromechanical delay, passive emptying fraction, and conduit volume. Conclusions Electromechanical delay was markedly prolonged and left atrial electromechanical function was impaired in untreated OSA patients. These impairments worsen with increasing severity of OSA. © Springer-Verlag Wien 2012 Daha fazlası Daha az

The influence of circadian variations on echocardiographic parameters in healthy people

Karabag T. | Aydin M. | Dogan S.M. | Sayin M.R. | Cetiner M.A.

Article | 2011 | Echocardiography28 ( 6 ) , pp.612 - 618

Background: Our aim was to investigate whether diastolic functions, myocardial velocities and pulmonary vein flow show diurnal variation within a 24-hour day. Method and Results: Fourty-four healthy subjects with no history of cardiovascular or systemic diseases (32 males, 12 females; mean age 34.7 ± 8.7 years, mean BMI: 25.5 ± 3.5 kg/m 2) were enrolled in this study. None of the subjects had a history, symptoms or signs of cardiovascular or systemic diseases or were taking drugs of any kind. All underwent echocardiographic examination at 7 a.m., 1 p.m., 7 p.m., and 1 a.m. M-mode systolic, diastolic velocities and pulmonary vein flo . . .w measurements were obtained. There were no differences in systolic and diastolic blood pressures and heart rate. The left atrial diameter was greater at 1 p.m. (3.80 ± 0.44; P = 0.031). The isovolumic contraction time (ICT) was found to be the shortest (41 ± 12 msn; P = 0.050), and ejection time (ET) the longest (290 ± 31 msn; P = 0.017) at the 1am measurements. The mitral myocardial performance index (MPI) was lowest during the 1 a.m. measurements (0.42 ± 0.11; P = 0.001). The systolic myocardial velocities (Sm) obtained from the septum and inferior region were significantly higher at 1 p.m. and lower at 7 a.m. (9.17 ± 1.79, 10.25 ± 2.29; 8.11 ± 1.06, 8.63 ± 1.49; P < 0.05). The late diastolic velocities obtained from the lateral, inferior and anterior regions were higher at 1 p.m. and 7 p.m. Conclusion: The left ventricular diameter and ejection fraction did not exhibit circadian variations. However, our data indicate that some parameters reflecting diastolic function, systolic myocardial velocities and MPI, as well as left atrial diameter change at different times of the day, independent of blood pressure and heart rate. © 2011, Wiley Periodicals, Inc Daha fazlası Daha az

Right ventricular isovolumic acceleration in acute pulmonary embolism

Cetiner M.A. | Sayin M.R. | Yildirim N. | Karabag T. | Dogan S.M. | Kucuk E. | Aydin M.

Article | 2014 | Echocardiography31 ( 10 ) , pp.1253 - 1258

Objective: In this study, we examined the role of isovolumic acceleration (IVA) measured with right ventricle (RV) tissue Doppler imaging (TDI) to predict the presence of acute pulmonary embolism (APE) in hemodynamically stable patients with clinical suspicion of APE. Materials and Method: This study included 25 hemodynamically stable (systolic blood pressure >90 mmHg) patients diagnosed with APE for the first time. Twenty-five subjects with similar demographic characteristics in whom APE was excluded due to preexisting clinical suspicion were also enrolled as the control group. All control group subjects were enrolled after prov . . .ed to have no evidence of APE on imaging. Both groups were compared with respect to RV-IVA measured with TDI in addition to conventional echocardiographic parameters. Results: Among the echocardiography parameters, only RV-IVA was impaired in patients with hemodynamically stable APE compared to controls (2.85 [1.37-6.42] m/sec2 vs. 3.32 [2.24-6.52] m/sec2, respectively; P = 0.02). A receiver operating characteristic (ROC) analysis was performed to determine the RV-IVA value to predict clinically suspected APE. A cutoff level of 3.22 m/sec2 had a sensitivity of 64% and a specificity of 60%; a cutoff level of 3.17 m/sec2 had a sensitivity of 64% and a specificity of 64%; and a cutoff level of 3.10 m/sec2 had a sensitivity of 60% and specificity of 64% (ROC area under curve: 0.691, 95% CI: 0.543-0.839, P = 0.02). Conclusion: Results of our study suggest that RV-IVA may be a useful parameter to detect subtle alterations in RV and may predict the presence of APE in hemodynamically stable patients. © 2014, Wiley Periodicals, Inc Daha fazlası Daha az

Prolonged P wave dispersion in pre-diabetic patients

Karabag T. | Aydin M. | Dogan S.M. | Ali Cetiner M. | Sayin M.R. | Gudul N.E. | Kucuk E.

Article | 2011 | Kardiologia Polska69 ( 6 ) , pp.566 - 571

Background: It is known that overt diabetes as well as chronic hyperglycaemia can lead to atrial fibrillation. A P wave dispersion (PWD) represents heterogeneity in atrial refractoriness. Aim: To investigate PWDs in patients with pre-diabetes. Method: Based on the results of examinations, 84 pre-diabetic patients (the pre-DM group; 50 female, 34 male; mean age 54 ± 8.6 years) who had no overt diabetes, coronary artery disease or hypertension, whose fasting blood glucose was higher than 100 mg/dL and/or whose 2 h glucose concentrations on an oral glucose tolerance test was in the range of 140 to 199 mg/dL, and 48 healthy volunteers ( . . .the non-DM group, 30 female, 18 male; mean age 51.7 ± 7.3 years) with no illnesses, were enrolled in this study. Standard 12-lead electrocardiograms of all patients were taken at 50 mm/s and 20 mm/mV standardisation. Maximum (Pmax) and minimum (P min) P-wave durations were measured. The PWD was defined as the difference between Pmax and Pmin. Results: The P max and PWD values were significantly higher in pre-DM compared to non-DM (104 ± 13 ms vs 98 ± 12 ms; p < 0.05, 42 ± 13 ms vs 34 ± 11 ms; p < 0.01 respectively). A positive correlation was found between PWD and fasting blood glucose (r = 0.32; p < 0.01). There was no correlation between PWD and HbA1c levels (r = 19; p > 0.05). Multivariate regression analysis showed no relationship between PWD and age, left atrial diameter, E, A, E/A or HbA1c. However, there was a relationship between PWD and fasting blood glucose. Conclusions: The Pmax and PWD are increased in pre-diabetic patients who have no coronary artery disease, hypertension or left ventricular hypertrophy. Copyright © Polskie Towarzystwo Kardiologiczne Daha fazlası Daha az

Left main coronary artery atresia and concomitant intercoronary communication

Sayin M.R. | Akpinar I. | Karabag T. | Aydin M. | Dogan S.M. | Gugul N.E.

Article | 2013 | Herz38 ( 7 ) , pp.798 - 800

[No abstract available]

Pigtail catheter fracture and embolization into the abdominal aorta: An extremely rare angiographic complication

Akpinar I. | Dogan S.M. | Karabag T. | Sayin M.R. | Kucuk E. | Buyukates M. | Turan S.A.

Article | 2012 | Journal of Cardiovascular Medicine13 ( 10 ) , pp.648 - 650

Coronary angiography is a widely used diagnostic method for coronary artery disease. In clinical practice, although complications of the procedure often involve the vascular access point, there is no previous report of the fracture and embolization of the distal tip of a pigtail catheter. Herein, we present the case of a 51-year-old woman whose left ventriculography was interrupted by fracture of the curved tip of a pigtail catheter, which remained at the renal artery level in the abdominal aorta. © 2012 Italian Federation of Cardiology.

Aortic elastic properties : effects of carvedilol versus nebivolol

Sayin M.R. | Aydin M. | Dogan S.M. | Karabag T. | Cetiner M.A. | Aktop Z.

Article | 2013 | Herz38 ( 3 ) , pp.299 - 305

OBJECTIVES: The aim of this study was to compare the effects of the new generation ß-blocker anti-hypertensive drugs carvedilol and nebivolol on aortic elastic properties which are important indicators of hypertension-related morbidity and mortality.METHODS: A total of 50 patients who had been diagnosed with stage 1 hypertension according to the Joint National Committee (JNC) VII criteria and who had not received any anti-hypertensive treatment were enrolled in this study. Patients were randomized to receive either 25 mg/day carvedilol (n=25) or 5 mg/day nebivolol (n=25) for 3 months at the beginning of the study. Three patients (1 . . .in the carvedilol group, 2 in the nebivolol group) who did not attend 3 month follow-up measurements were excluded from the study. The study was completed with 47 patients (25 women; mean age: 49 ± 9 years). The aortic elastic parameters such as aortic strain (AS), aortic distensibility (AD), and aortic stiffness index (ASI) were measured by echocardiography.RESULTS: Carvedilol and nebivolol provided a similar decline in both systolic and diastolic blood pressures (-12/-7 mmHg, Daha fazlası Daha az

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