Yazar "Akil, Mehmet Ata" seçeneğine göre listele
Listeleniyor 1 - 20 / 35
Sayfa Başına Sonuç
Sıralama seçenekleri
Öğe Apelin Levels In Isolated Coronary Artery Ectasia(Korean Soc Cardiology, 2015) Bilik, Mehmet Zihni; Kaplan, Ibrahim; Yildiz, Abdulkadir; Akil, Mehmet Ata; Acet, Halit; Yuksel, Murat; Polat, NihatBackground and Objectives: The etiopathogenesis of coronary artery ectasia (CAE) is not known completely. In most of the cases, CAE is associated with atherosclerosis; however, isolated CAE has a nonatherosclerotic mechanism. The association between atherosclerotic coronary artery disease and apelin has been examined in previous studies. However, the role of plasma apelin in isolated coronary artery ectasia has not been studied. In this study, we investigated the relationship between plasma apelin levels and isolated coronary artery ectasia. Subjects and Methods: The study population included a total of 54 patients. Twenty-six patients had isolated CAE (53.6 +/- 8.1 years); 28 patients with normal coronary arteries (51.6 +/- 8.8 years) and with similar risk factors and demographic characteristics served as the control group. Apelin levels were measured using an enzyme-linked immunoassay kit. Results: Apelin level in the CAE group was significantly lower (apelin=0.181 +/- 0.159 ng/mL) than that in the control group (apelin=0.646 +/- 0.578 ng/mL) (p=0.033). Glucose, creatinine, total cholesterol, triglyceride, low density lipoprotein cholesterol, and high density lipoprotein cholesterol levels were not significantly different between the two groups. Conclusion: In this study, we showed that patients with isolated CAE have decreased plasma apelin levels compared with the control group. Based on the data, a relationship between plasma apelin and isolated CAE was determined.Öğe Assessment of atrial electromechanical delay and P-Wave dispersion in patients with Psoriasis(Echocardiography- A Journal Cardiovascular Ultrasound and Allied Techniques, 2014) Yildiz, Abdulkadir; Ucmak, Derya; Oylumlu, Mustafa; Akkurt, Meltem Z.; Yuksel, Murat; Akil, Mehmet Ata; Polat, Nihat; Aydin, Mesut; Bilik, M. Zihni; Acet, HalitBackground: In this study, we sought to evaluate atrial electromechanical properties and conduction homogeneity by tissue Doppler imaging and electrocardiography in patients with psoriasis. Methods: Thirty-four patients with psoriasis and 30 age-and gender-matched healthy controls were included in the study. Atrial electromechanical coupling intervals were assessed by means of tissue Doppler echocardiography and P-wave dispersion (Pd) was calculated from electrocardiogram. Results: A total of 64 subjects (33 male) with a mean age of 36.8 +/- 11.9 years were included in the study. Basal characteristics were similar between 2 groups. Intra-atrial (15 +/- 7 ms vs. 12 +/- 5 ms, P = 0.009) and inter-atrial (28 +/- 7 ms vs. 23 +/- 7 ms, P = 0.002) electromechanical delays were significantly higher in patients with psoriasis compared with control groups. P-maximum (112 +/- 16 ms vs. 103 +/- 8 ms, P = 0.006) and Pd (35 +/- 9 ms vs. 20 +/- 6 ms, P < 0.001) were also prolonged in patients with psoriasis. Conclusion: This study demonstrated that atrial electromechanical coupling intervals and P-wave dispersion were prolonged in patients with psoriasis, which may cause an increased risk of atrial fibrillation in this patient group.Öğe Assessment of Platelet to Lymphocyte Ratio to Predict Stent Thrombosis in Patients with ST Elevation Myocardial Infarction(Elsevier Science Inc, 2013) Yildiz, Abdulkadir; Yuksel, Murat; Oylumlu, Mustafa; Bilik, Mehmet Zihni; Acet, Halit; Akil, Mehmet Ata; Polat, Nihat[Abstract Not Available]Öğe Assessment of Right Ventricular Systolic Functions in Patients with Chronic Renal Failure before and after Hemodialysis(Elsevier Science Inc, 2013) Yildiz, Abdulkadir; Akyuz, Abdurrahman; Yuksel, Murat; Oylumlu, Mustafa; Bilik, Mehmet Zihni; Polat, Nihat; Akil, Mehmet Ata[Abstract Not Available]Öğe The Association Between the Neutrophil-to-Lymphocyte Ratio and the Presence of Ventricular Premature Contractions in Young Adults(Sage Publications Inc, 2015) Yildiz, Abdulkadir; Oylumlu, Mustafa; Yuksel, Murat; Aydin, Mesut; Polat, Nihat; Acet, Halit; Akil, Mehmet AtaInflammation has recently emerged in the pathogenesis of several cardiovascular disorders, including arrhythmias. The neutrophil-lymphocyte ratio (NLR) is a simple marker for the assessment of inflammatory status. Therefore, we aimed to investigate the relationship between the NLR and the ventricular premature contraction (VPC) existence. Patients aged between 18 and 40 years who were referred to the cardiology clinic were enrolled in the study. All patients' complete blood counts and 24-hour Holter recordings were analyzed. The NLR was higher within the VPC group compared to the control group (P < .001). According to the NLR tertiles, VPCs were more common in the higher NLR tertile (P < .001). A cutoff point of 1.80 for the NLR had 71% sensitivity and 60% specificity in predicting VPC in apparently healthy individuals. After multivariate analysis, only the NLR remained significant predictor of presence of VPC. In conclusion, the NLR is independently and significantly associated with VPC existence.Öğe The association between the neutrophil/lymphocyte ratio and functional capacity in patients with idiopathic dilated cardiomyopathy(Turkish Soc Cardiology, 2015) Yildiz, Abdulkadir; Yuksel, Murat; Oylumlu, Mustafa; Polat, Nihat; Akil, Mehmet Ata; Acet, HalitObjective: The neutrophil/lymphocyte ratio (NLR) is an inexpensive, readily available and reliable inflammatory marker, which has a predictor value in different cardiovascular disorders. Functional capacity is one of the most important prognostic factors in patients with heart failure, which is usually stated as metabolic equivalents (MET). The goal of the study was to investigate the relationship between the NLR and functional capacity (FC) in patients with idiopathic dilated cardiomyopathy (IDC). Methods: Treadmill test according to modified-Bruce protocol was performed in 37 patients with IDC (mean age 46.7 +/- 11.7 years, 81.1% male) to assess their functional capacity. Baseline clinical and echocardiographic variables were obtained. Hematological and biochemical parameters were measured using standard techniques. Results: The patients were divided into low (<5 MET, n=18) and high (>5 MET, n=19) FC groups according to their functional status in the exercise test. The 2 groups were similar regarding age, gender and the presence of hypertension and diabetes mellitus. There was no significant difference between groups regarding echocardiographic parameters such as left ventricular ejection fraction and diameters. However, the NLR was significantly higher in low FC group compared to high FC group (3.62 +/- 2.24 vs. 2.24 +/- 0.67, p=0.002; respectively). There were significant negative correlations between the NLR, MET and left ventricular ejection fraction (r=-0.405, p=0.013 and r=-0.028, p=0.028; respectively). Diastolic dysfunction was present in all the patients with low functional capacity. A cut-off point of 2.26 for the NLR had 83% sensitivity and 69% specificity in predicting poor FC. After multivariate analysis, only the NLR remained significant predictor of poor functional status. Conclusion: We detected a significant association between the NLR and low FC, both of which has predictive and prognostic value in patients with heart failure. Functional capacity may depend on diastolic function rather than left ventricular ejection fraction in patients with IDC.Öğe Association of Neutrophil-Lymphocyte Ratio With the Presence and Severity of Rheumatic Mitral Valve Stenosis(Sage Publications Inc, 2014) Polat, Nihat; Yildiz, Abdulkadir; Yuksel, Murat; Bilik, Mehmet Zihni; Aydin, Mesut; Acet, Halit; Akil, Mehmet AtaThe aim of the study is to investigate the association between the severity of rheumatic mitral valvular disease (RMVD) and the neutrophil-lymphocyte ratio (NLR). A total of 227 patients were enrolled in the study and divided into 3 groups. Patients in group 1 had rheumatic mitral stenosis (RMS), those in group 2 had RMVD without stenosis, and those in group 3 served as the control group. Group 1 was further divided into 2 groups, severe mitral stenosis (MS) and mild to moderate MS. The NLR was significantly higher in patients with severe MS when compared to those with mild to moderate MS (P = .002) while lymphocyte count was lower (P = .034). Using a cutoff level of 2.56, the NLR predicted severe RMS with a sensitivity of 75% and specificity of 74%. In conclusion, as an inexpensive, simple, and accessible marker of inflammation, the NLR may be useful in predicting the presence and severity of MS in patients with RMVD.Öğe A co-anomaly: hourglass-like aorta and giant coronary arteries(Turkish Soc Cardiology, 2014) Akil, Mehmet Ata; Bilik, Mehmet Zihni; Acet, Halit; Ertas, Faruk; Yildiz, Abdulkadir[Abstract Not Available]Öğe Distribution of Accessory Pathways in Atrioventricular Reentrant Tachycardia in Southeast Anatolian Region of Turkey(Duzce Univ, 2015) Aydin, Mesut; Polat, Nihat; Yuksel, Murat; Yildiz, Abdulkadir; Acet, Halit; Bilik, Mehmet Zihni; Akil, Mehmet AtaObjective: We aimed to evaluate distribution of accessory pathway (AP) in atrioventricular reentrant tachycardia (AVRT) in southeast Anatolian region of Turkey. Methods: The study was a retrospective cross-sectional design. Consecutive patients who underwent catheter ablation of AVRT between June 2012 and July 2014 were included in the study. All patients were taken to the electrophysiology laboratory in the non-sedated state and underwent an initial diagnostic study using three diagnostic catheters. The one of them was placed in coronary sinus. In those patients, in whom the AP was identified, ablation therapy was carried out using radiofrequency energy. We decided distribution of AP on fluoroscopy. Fluoroscopic images are obtained in and the left anterior oblique orientation. Results: The study population consisted of 64 AVRT patients (63% female; mean age 34 +/- 14). Among AVRT 20(31%) patients had concealed AVRT, 44 (69%) patients had Wolf Parkinson White syndrome. Distribution of AP was 59% at the left free wall, 34% at the posteroseptum, 6% at the right free wall, and 3% at the anteroseptum. The locations of APs were compared. There was no any statistically significant among groups. Conclusion: Distribution of AP location was in accordance with literature. The other characteristic of AVRT were similar with the current data.Öğe Echocardiographic Epicardial Fat Thickness and Neutrophil to Lymphocyte Ratio Are Novel Inflammatory Predictors of Cerebral Ischemic Stroke(Elsevier Science Bv, 2014) Akil, Esref; Akil, Mehmet Ata; Varol, Sefer; Ozdemir, Hasan Huseyin; Yucel, Yavuz; Arslan, Demet; Akyuz, AbdurahmanBackground: The role of epicardial fat thickness (EFT) in ischemic stroke (IS) has not been previously investigated. The aim of the present study was to evaluate EFT and neutrophil/lymphocyte ratio (NLR) among patients with IS and to examine the relationship between these inflammatory markers and the incidence of IS. Methods: The cross-sectional design includes 38 patients with IS and 47 age- and sex-matched healthy controls. Echocardiographic measurement of EFT was conducted according to previously published methods. An automated hematology analyzer was used to generate total and differential leukocyte counts from patient blood samples. Results: Mean EFT was 4.86 +/- .68 mm in the control group and 5.95 +/- 1.14 mm in the IS group. EFTwas significantly greater in the IS patients in relation to the control group (P < .001). Mean NLR was significantly greater among IS patients in relation to the control group (2.5 +/- .6 vs. 1.8 +/- .4, P < .001). No significant confounding factors were identified in the data set. Spearman's correlation analysis revealed a mild, but highly significant correlation between EFT and NLR (r = 5.293, P =.006). Conclusions: This study demonstrates for the first time the association between EFT and cerebral IS. Echocardiographic EFT was significantly correlated with NLR. NLR and echocardiographic EFT represent inexpensive and readily available clinical markers that maybe useful in estimating risk of IS.Öğe The Effects of Nebivolol on QT Duration and Dispersion in Patients with Coronary Slow Flow(Elsevier Science Inc, 2013) Sahin, Musa; Simsek, Hakki; Akyol, Aytac; Akdag, Serkan; Akil, Mehmet Ata; Aksoy, Hakan; Dogan, Adnan[Abstract Not Available]Öğe Estimated plasma volume is not a robust indicator of the severity of congestion in patients with heart failure(Elsevier Science Inc, 2023) Guvenc, Rengin Cetin; Guvenc, Tolga Sinan; Akil, Mehmet Ata; Bekar, Lutfu; Vural, Mustafa Gokhan; Yilmaz, Mehmet BirhanBackground: Congestion is the main cause of morbidity and a prime determinant of survival in patients with heart failure (HF). However, the assessment of congestion is subjective and estimation of plasma volume (ePV) has been suggested as a more objective measure of congestion. This study aimed to explore the relationships and interactions between ePV, the severity of congestion and survival using a nationwide registry.Methods: Of the 1054 patients with HF enrolled in the registry, 769 had sufficient data to calculate ePV (using the Duarte, Kaplan, and Hatrim equations) and relative plasma volume status (rPVS), and these patients were subsequently included in the present analysis. The severity of congestion was assessed using a 6-point congestion score (CS). Patients were divided into three groups according to the degree of congestion.Results: Out of four equations tested, only ePV(Duarte) and rPVS were statistically higher in patients with severe congestion as compared to patients with no congestion (p<0.001 for both). Both ePV(Duarte )(r = 0.197, p<0.001) and rPVS (r = 0.153, p<0.001) showed statistically significant correlations with CS and both had a modest accuracy (70.4% for ePV(Duarte )and 69.4% for rPVS) to predict a CS >= 3. After a median follow up of 496 days, both ePV(Duarte) (OR:1.14,95%CI:1.03-1.26, p = 0.01) and rPVS (OR:1.02, 95%CI:1.00-1.03, p = 0.03) were associated with all-cause mortality after adjusting for demo-graphic and clinical variables. However, none of the indices were associated with mortality following the introduction of CS to the models (p>0.05 for both).Conclusions: Elevated ePV(Duarte) and rPVS were indicators of congestion but with a limited robustness, and either parameter could be clinically useful when a comprehensive clinical evaluation of congestion is not feasible.Öğe Frequency of Pulmonary Hypertension in Patients with COPD due to Biomass Smoke and Tobacco Smoke(Ivyspring Int Publ, 2012) Sertogullarindan, Bunyamin; Gumrukcuoglu, Hasan Ali; Sezgi, Cengizhan; Akil, Mehmet AtaObjectives; Pulmonary hypertension (PH) is a common and well established complication of chronic obstructive pulmonary disease (COPD). Its presence is associated with decreased survival. This study was designed to investigate the PH frequency and its relations in hospitalized tobacco and biomass related COPD patients. Methods and Results; The study was a retrospective review of inpatients with COPD defined as a history of tobacco or biomass smoking, Pulmonary function tests (PFT) within stable status, an echocardiogram within stable status. PH was defined as systolic pulmonary artery pressure (sPAP) > 35 mmHg. Of the 694 individuals, 600 had suitable aspects for inclusion of study. All Females were biomass exposer and males were tobacco smoker. The Prevalence of PH was found more frequent in females than males. It was more prominent in moderate level COPD cases (56,2% and 37,5%, P<0,002). Both groups had airflow limitation, hypercapnia and hypoxemia, but no differences were found in terms of PaCO2 and PaO2. However, FEVI % was lower in males than females (p<0,005). On the other hand, FVC % was lower in the females compared with the males (p < 0.02). When analyzing the influence of PFT and demographic parameters on PH in separate COPD level groups, the results a bit varied among the groups. Conclusion; Our study demonstrated that PH frequency is higher in female COPD cases due to biomass smoke than in male COPD cases due to tobacco smoke. The influence of FVC % on the risk of a person having PH increased with increasing COPD level.Öğe Identifying autonomic nervous system dysfunction in acute cerebrovascular attack by assessments of heart rate variability and catecholamine levels(Georg Thieme Verlag Kg, 2015) Akil, Esref; Tamam, Yusuf; Akil, Mehmet Ata; Kaplan, Ibrahim; Bilik, Mehmet Zihni; Acar, Abdullah; Tamam, BanuObjective: This study aimed to evaluate changes in the autonomic nervous system caused by cerebral lesions due to acute stroke. We assessed heart rate variability and catecholamine levels in lieu of stroke lesion localization. Materials and Methods: A total of 60 stroke patients and 31 healthy controls were enrolled in the study. Plasma epinephrine and norepinephrine levels were measured on the first, third, and seventh days following the stroke event. Heart rate variability was evaluated with time-domain and frequency-domain analyses via 24-hour Holter monitor recordings. Results: On the first and third day following the stroke, norepinephrine levels were significantly higher in all patient groups as compared to controls. Epinephrine levels on the first, third and seventh days after the stroke were significantly higher in patients with lesions in the right middle cerebral artery territory than controls. In frequency-domain analysis, patients with right middle cerebral artery territory lesions had greater low frequency and low frequency to high frequency ratio values than controls. Time-domain analysis revealed significant decreases in the standard deviation from the mean for 5-minute 288 R-R intervals in patients with lesions in the right middle cerebral artery and posterior cerebral artery territory when contrasted with controls. Patients with lesions in the right middle cerebral artery territory demonstrated the highest increase in the percentage of consecutive R-R intervals differing by more than 50 ms (pNN50) as compared to the control group. Conclusion: These findings indicate that autonomic dysfunction favoring an increase in sympathetic activity occurs in acute stroke patients.Öğe Impact of insulin resistance on contrast induced nephropathy in patients undergoing percutaneous coronary intervention(Springer India, 2014) Elbey, Mehmet Ali; Evliyaoglu, Osman; Simsek, Ziya; Oylumlu, Mustafa; Akil, Mehmet Ata; Aydin, Mesut; Bilik, ZihniContrast-induced nephropathy (CIN) is a common complication following percutaneous coronary intervention (PCI). Contrast-induced nephropathy after emergency PCI in subjects with insulin resistance (IR) has not been studied before. In this prospective study we determined the relation between IR on CIN, among those undergoing PCI due to acute coronary syndrome. One hundred twenty four consecutive acute coronary syndrome patients with diabetes (N = 44), insulin resistance (N = 38) and normal glycemic metabolism (N = 42) were included in the study. They were all treated with PCI. Pre- and post procedural creatinines were measured and independent predictors of CIN were analyzed. IR was defined as a HOMA level (HOMA-IR = Serum Glucose (mg/dL) X Plasma Insulin (micro unit/mL) / 405 > 2.5. Patients with IR or diabetes had significantly higher levels of creatinine after procedure, serum cholesterol, glucose, contrast volume, hospital stay and HOMA. Female gender, frequency of CIN and multivessel disease were also higher in these patients. On the other hand they had significantly lower ejection fraction. Logistic regression analysis showed that HOMA was the single independent risk factor for CIN in patients with acute coronary syndrome treated with PCI. Insulin resistance is an independent risk factor for CIN in patients with acute coronary syndrome treated with PCI. It carries a similar risk with diabetes and proper prophylaxis should be performed.Öğe Minefield in the aorta: a rare case of thrombus(Turkish Soc Cardiology, 2013) Akil, Mehmet Ata; Kaya, Hasan; Ertas, Faruk; Bilik, Mehmet Zihni[Abstract Not Available]Öğe New inflammatory predictors for non-valvular atrial fibrillation: echocardiographic epicardial fat thickness and neutrophil to lymphocyte ratio(Springer, 2014) Acet, Halit; Ertas, Faruk; Akil, Mehmet Ata; Oylumlu, Mustafa; Polat, Nihat; Yildiz, Abdulkadir; Bilik, Mehmet ZihniThe objective of this study was to investigate the relationship of echocardiographic epicardial fat thickness (EFT) and neutrophil to lymphocyte ratio (NLR) with different types of non-valvular atrial fibrillation (AF) in a clinical setting. A total of 197 consecutive patients were enrolled in the study. Seventy-one patients had paroxysmal non-valvular AF, 63 patients had persistent/permanent non-valvular AF, and 63 patients had sinus rhythm (control group). EFT was measured with echocardiography, while NLR was measured by dividing neutrophil count by lymphocyte count. EFT was significantly higher in patients with paroxysmal non-valvular AF compared with those in the sinus rhythm group (6.6 +/- A 0.7 vs. 5.0 +/- A 0.9 mm, p < 0.001). Persistent/permanent non-valvular AF patients had a significantly larger EFT compared with those with paroxysmal AF (8.3 +/- A 1.1 vs. 6.6 +/- A 0.7 mm, p < 0.001). EFT had a significant relationship with paroxysmal non-valvular AF (odds ratio 4.672, 95 % CI 2.329-9.371, p < 0.001) and persistent/permanent non-valvular AF (OR 24.276, 95 % CI 9.285-63.474, p < 0.001). NLR was significantly higher in those with paroxysmal non-valvular AF compared with those in the sinus rhythm group (2.5 +/- A 0.6 vs. 1.8 +/- A 0.4, p < 0.001). Persistent/permanent non-valvular AF patients had a significantly larger NLR when compared with paroxysmal non-valvular AF patients (3.4 +/- A 0.6, vs. 2.5 +/- A 0.6, p < 0.001). NLR (> 2.1) had a significant relationship with non-valvular AF (OR 11.313, 95 % CI 3.025-42.306, b 2.426, p < 0.001). EFT and NLR are highly associated with types of non-valvular AF independent of traditional risk factors. EFT measured by echocardiography and NLR appears to be related to the duration and severity of AF.Öğe New inflammatory predictors for non-valvular atrial fibrillation: echocardiographic epicardial fat thickness and neutrophil to lymphocyte ratio(Oxford Univ Press, 2014) Acet, Halit; Ertas, Faruk; Akil, Mehmet Ata; Oylumlu, Mustafa; Polat, Nihat; Yildiz, Abdulkadir; Bilik, Mehmet Zihni[Abstract Not Available]Öğe Non-Valvular Atrial Fibrillation in the Elderly; Preliminary Results from the National AFTER (Atrial Fibrillation in Turkey: Epidemiologic Registry) Study(Elsevier Science Inc, 2013) Ertas, Faruk; Oylumlu, Mustafa; Akil, Mehmet Ata; Acet, Halit; Bilik, Mehmet Zihni; Celepkolu, Tahsin; Yildiz, Abdulkadir[Abstract Not Available]Öğe A novel predictor of infarct-related artery patency before percutaneous intervention and in-hospital outcomes for ST-segment elevation myocardial infarction patients: serum bilirubin level(Termedia Publishing House Ltd, 2014) Acet, Halit; Ertas, Faruk; Akil, Mehmet Ata; Polat, Nihat; Aydin, Mesut; Akyuz, Abdurrahman; Aycicek, HilalIntroduction: Previous studies have reported a relationship between serum bilirubin levels and coronary artery disease (CAD). However, data are rare up to now regarding the relation of bilirubin levels with infarct-related artery (IRA) patency in the setting of ST-segment elevation myocardial infarction (STEMI). Moreover, previous studies reported that increased bilirubin was related to impaired post-intervention coronary flow. To our knowledge, the association between serum total bilirubin (TB) levels and pre-primary percutaneous coronary intervention (PCl) with patency of IRA flow in STEMI patients has not been investigated. Aim: To evaluate the association of TB with pre-primary PCl, coronary flow and in-hospital major adverse cardiac events (MACE) in patients with STEMI. Material and methods: A total of 360 consecutive patients with STEMI (mean age = 61.4+/-13.7 years) admitted within 12 h from the time of symptom onset were enrolled. Patients were divided into 2 groups based on the serum TB levels. We defined normal flow as pre-PCl TIMI 3 flow, while impaired flow was defined as pre-PCl TIMI 2 flow. Results: Pre-PCl impaired flow was higher in the TB group than pre-PCl normal flow (p < 0.001). In-hospital mortality and MACE were significantly higher in the high TB group (p = 0.002, p < 0.001 respectively). In the receiver operating characteristic curve analysis, TB > 0.825 mg/dl predicted impaired IRA flow before p-PCl with a sensitivity of 79% and specificity of 71%. Conclusions: The TB is an inexpensive and readily available marker for STEMI patients undergoing PCl. It can be used for risk stratification in this patient population.
