Yazar "Kaya, Hakki" seçeneğine göre listele
Listeleniyor 1 - 20 / 31
Sayfa Başına Sonuç
Sıralama seçenekleri
Öğe Anomalous Origin of the Left Main Artery from Right Coronary Sinus with a Prepulmonic Course(UBIQUITY PRESS LTD, 2015) Kaplanoglu, Hatice; Beton, Osman; Dinc, Lale; Kaya, Hakki; Yilmaz, BurhanA 32 year old female patient presented to the cardiology clinic with an atypical chest pain. Her history revealed no other condition than Leopard syndrome which was diagnosed on her birth. On her coronary CT angiography, LMCA originated from the right coronary sinus and had a prepulmonic course. The purpose of this article is to present this patient with Leopard syndrome accompanied by left coronary artery outlet and coronary sinus abnormality.Öğe Association of CA-125 Levels with Presence of Permanent Atrial Fibrillation in Patients with Systolic Heart Failure(ELSEVIER SCIENCE INC, 2013) Kaya, Hakki; Yucel, Hasan; Zorlu, Ali; Gunes, Hakan; Yimaz, Mehmet Birhan…Öğe Atrial fibrillation and D dimer levels for patients with acute decompensated heart failure(ELSEVIER IRELAND LTD, 2016) Kaya, Hakki; Beton, Osman; Yilmaz, Mehmet Birhan…Öğe Öğe Bleeding complications during cardiac electronic device implantation in patients receiving antithrombotic therapy: is there any value of local tranexamic acid?(BMC, 2016) Beton, Osman; Saricam, Ersin; Kaya, Hakki; Yucel, Hasan; Dogdu, Orhan; Turgut, Okan Onur; Berkan, Ocal; Tandogan, Izzet; Yilmaz, Mehmet BirhanBackground: The perioperative use of antithrombotic therapy is associated with increased bleeding risk after cardiac implantable electronic device (CIED) implantation. Topical application of tranexamic acid (TXA) is effective in reducing bleeding complications after various surgical operations. However, there is no information regarding local TXA application during CIED procedures. The purpose of our study was to evaluate bleeding complications rates during CIED implantation with and without topical TXA use in patients receiving antithrombotic treatment. Methods: We conducted a retrospective analysis of consecutive patients undergoing CIED implantation while receiving warfarin or dual antiplatelet (DAPT) or warfarin plus DAPT treatment. Study population was classified in two groups according to presence or absence of topical TXA use during CIED implantation. Pocket hematoma (PH), major bleeding complications (MBC) and thromboembolic events occuring within 90 days were compared. Results: A total of 135 consecutive patients were identified and included in the analysis. The mean age was 60 +/- 11 years old. Topical TXA application during implantation was reported in 52 patients (TXA group). The remaining 83 patients were assigned to the control group. PH occurred in 7.7 % patients in the TXA group and 26.5 % patients in the control group (P = 0.013). The MBC was reported in 5.8 % patients in the TXA and 20.5 % patients in control group (P = 0.024). Univariate logistic regression analysis identified age, history of recent stent implantation, periprocedural spironolactone use, periprocedural warfarin use, perioperative warfarin plus DAPT use, cardiac resynchronization therapy, and topical TXA application during CIED implantation as predicting factors of PH. Multivariate analysis showed that perioperative warfarin plus DAPT use (OR = 10.874, 95 % CI: 2.496-47.365, P = 0.001) and topical TXA application during CIED procedure (OR = 0.059, 95 % CI: 0.012-0.300, P = 0.001) were independent predictors of PH. Perioperative warfarin plus DAPT use and topical TXA application were also found to be independent predictors of MBC in multivariate analyses. No thromboembolic complications was recorded in the study group. Conclusion: The present study demonstrated that the topical TXA application during CIED implantation is associated with reduced PH and MBC in patients with high bleeding risk.Öğe Cancer Antigen 125 is Associated with Length of Stay in Patients with Acute Heart Failure(TEXAS HEART INST, 2017) Kaya, Hakki; Kurt, Recep; Beton, Osman; Zorlu, Ali; Yucel, Hasan; Gunes, Hakan; Oguz, Didem; Yilmaz, Mehmet BirhanLength of stay is the primary driver of heart-failure hospitalization costs. Because cancer antigen 125 has been associated with poor morbidity and mortality rates in heart failure, we investigated the relationship between admission cancer antigen 125 levels and lengths of stay in heart-failure patients. A total of 267 consecutive patients (184 men, 83 women) with acute decompensated heart failure were evaluated prospectively. The median length of stay was 4 days, and the patients were classified into 2 groups: those with lengths of stay <= 4 days and those with lengths of stay > 4 days. Patients with longer lengths of stay had a significantly higher cancer antigen 125 level of 114 U/mL (range, 9-298 U/mL) than did those with a shorter length of stay (19 U/mL; range; 3-68) (P < 0.001). The optimal cutoff level of cancer antigen 125 in the prediction of length of stay was > 48 U/mL, with a specificity of 95.8% and a sensitivity of 96% (area under the curve, 0.979; 95% confidence interval [CI], 0.953-0.992). In the multivariate logistic regression model, cancer antigen 125 > 48 U/mL on admission (odds ratio=4.562; 95% CI, 1.826-11.398; P=0.001), sodium level (P< 0.001), creatinine level (P=0.009), and atrial fibrillation (P=0.015) were also associated with a longer length of stay after adjustment for variables found to be statistically significant in univariate analysis and correlated with cancer antigen 125 level. In addition, it appears that in a cohort of patients with acute decompensated heart failure, cancer antigen 125 is independently associated with prolonged length of stay.Öğe Cancer antigen-125 levels predict long-term mortality in chronic obstructive pulmonary disease(INFORMA HEALTHCARE, 2015) Kaya, Hakki; Zorlu, Ali; Yucel, Hasan; Dogan, Omer Tamer; Sarikaya, Savas; Aydin, Gulay; Kivrak, Tarik; Yilmaz, Mehmet BirhanBackground: Cancer antigen-125 (CA-125) might be a useful biomarker to predict long-term mortality in patients with recent exacerbation of chronic obstructive pulmonary disease (COPD). Methods: A total of 87 consecutive patients with COPD were evaluated prospectively. Mean age of patients was 68 +/- 10 years (55% males, 45% females) with a median follow-up period of 49 months. Optimal cut-off value of CA-125 to predict mortality was found as >93.34 U/ml, with 91% specificity and 40% sensitivity. Results: After follow-up, 20 out of 87 (23%) experienced cardiovascular death. CA-125 levels were higher among those who died compared to those who survived [55 (12-264) versus 28 (5-245) U/ml, p = 0.013]. In multivariate Cox proportional-hazards model with forward stepwise method, only CA-125 > 93.34 U/ml on admission (HR 3.713, 95% Cl: 1.035-13.323, p = 0.044) remained associated with an increased risk of death. Conclusions: For the first time, we demonstrated that CA-125 helps the risk stratification of patients with COPD.Öğe COHgb levels predict the long-term development of acute myocardial infarction in CO poisoning(W B SAUNDERS CO-ELSEVIER INC, 2016) Kaya, Hakki; Coskun, Abuzer; Beton, Osman; Zorlu, Ali; Kurt, Recep; Yucel, Hasan; Gunes, Hakan; Yilmaz, M. BirhanBackground: There are several studies evaluating the cardiac effects of carbon monoxide (CO) poisoning during the acute period; however, the number of studies evaluating the long-term cardiac effects is limited. Objective: The present study aimed to evaluate the effects of blood carboxyhemoglobin (COHb) levels, elevated due to CO poisoning on the long-term development of acute myocardial infarction (AMI). Methods: This cross-sectional cohort study included a total of 1013 consecutive patients who presented to the emergency department (ED) due to CO poisoning, between January 2005 and December 2007. The diagnosis of CO poisoning was made according to the medical history and a COHb level of greater than 5%. In terms of AMI development, the patients were followed up for an average of 56 months. Results: At the end of follow-up, 100 (10%) of 1013 patients experienced AMI. Carboxyhemoglobin levels at the time of poisoning were higher among those who were diagnosed with AMI compared to those who were not (55% +/- 6% vs 30% +/- 7%; P < .001). Using a multivariate Cox proportional hazards model with forward stepwise method, age, COHb level, CO exposure time, and smoking remained associated with an increased risk of AMI after adjustment for the variables found to be statistically significant in a univariate analysis. According to a receiver operating characteristic curve analysis, the optimal cutoff value of COHb used to predict the development of AMI was found to be greater than 45%, with 98% sensitivity and 94.1% specificity. Conclusion: In patients presenting to the ED with CO poisoning, COHb levels can be helpful for risk stratification in the long-term development of AMI. (C) 2016 Elsevier Inc. All rights reserved.Öğe Correlation of right ventricular dysfunction on acute pulmonary embolism with pulmonary artery computed tomography obstruction index ratio (PACTOIR) and comparison with echocardiography(SPRINGER, 2015) Varol, Kenan; Gumus, Cesur; Yucel, Hasan; Sezer, Ferhat; Seker, Emrah; Inci, Mehmet Fatih; Yucel, Selma; Kaya, Hakki; Berk, Serdar; Yilmaz, Mehmet BirhanThe aim of this study was to determine the pulmonary artery computed tomography obstruction index ratio (PACTOIR) in patients who have been diagnosed with acute pulmonary embolism (APE) with multi-slice computed tomography (MSCT) and to research the predetermination efficiency of right ventricular dysfunction (RVD) compared with echocardiography (ECHO). One hundred patients (50 males, 50 females), who had ECHO findings and were diagnosed with APE, were subsequently examined in this study. Patients who had RVD on ECHO, tricuspid regurgitation, and pulmonary hypertension parameters that were completely positive were accepted to have RVD. RVD was identified in 52 patients (52 %) on echocardiography. The PACTOIR value for patients with RVD were evaluated to be significantly higher than those without RVD (41 +/- A 17 vs 20 +/- A 12 %, p < 0.001). In the ROC analysis, the PACTOIR cut-off value was 37.5 %, the sensitivity value was 67.3 %, and specificity value was 93.7 % (AUC 0.839, 95 % CI 0.752-0.905). We determined that the patients with RVD and PACTOIR values over 37.5 % can be recognized with a 92.1 % positive predictive value. Our conclusions indicated that the PACTOIR rate in RVD diagnosis in patients with APE can recognize the patients with and without RVD.Öğe Effect of altitude on ticagrelor-induced dyspnea in patients with acute coronary syndrome(Sage Publications Ltd, 2023) Kocabay, Gonenc; Kivrak, Tarik; Karaca, Ozkan; Karasu, Mehdi; Kaya, Hakki; Kanar, Batur; Orscelik, OzcanObjective: This study aimed to define the association between altitude and ticagrelor-associated dyspnea in patients with acute coronary syndrome (ACS). Methods: We studied consecutive patients with de novo ACS who were admitted to two centers at a low altitude (18 and 25 m, n = 65) and two centers at a high altitude (1313 and 1041 m, n = 136). We managed them with ticagrelor between May 2017 and September 2017. Patients with ACS underwent an interventional procedure within <90 minutes in those with ST elevation and within <3 hours in those without ST elevation. We recorded the incidence of dyspnea in patients with ACS receiving ticagrelor therapy. Results: The mean age was 59.5 +/- 10 years, and the mean ejection fraction was 43% +/- 18%. A total of 110 (56.7%) patients had ST elevation and 84 (43.3%) did not. There were no significant differences in cardiac risk factors, concurrent medications, or procedural variables between the two groups. Dyspnea developed during hospitalization in 53 (38%) patients from high-altitude centers and in 13 (20%) patients from low-altitude centers (66 patients represented 32% of the total ACS cohort). Conclusions: Dyspnea is a common multifactorial symptom in patients following development of ACS. Ticagrelor-induced dyspnea appears to be associated with altitude.Öğe Öğe Electrical Injury-Induced Complete Atrioventricular Block: Is Permanent Pacemaker Required?(HINDAWI LTD, 2015) Beton, Osman; Efe, Tolga Han; Kaya, Hakki; Bilgin, Murat; Asarcikli, Lale Dinc; Yilmaz, Mehmet BirhanA considerable percentage of electrical injuries occur as a result of work activities. Electrical injury can lead to various cardiovascular disorders: acute myocardial necrosis, myocardial ischemia, heart failure, arrhythmias, hemorrhagic pericarditis, acute hypertension with peripheral vasospasm, and anomalous, nonspecific ECG alterations. Ventricular fibrillation is the most common arrhythmia resulting from electrical injury and is the leading cause of death in electrical (especially low voltage alternating current) injury cases. Asystole, premature ventricular contractions, ventricular tachycardia, conduction disorders (various degrees of heart blocks, bundle-brunch blocks), supraventricular tachycardia, and atrial fibrillation are the other arrhythmic complications of electrical injury. Complete atrioventricular block has rarely been reported and permanent pacemaker was required for the treatment in some of these cases. Herein, we present a case of reversible complete atrioventricular block due to low voltage electrical injury in a young electrical technician.Öğe Elevated gamma glutamyl transferase levels are associated with the location of acute pulmonary embolism. Cross-sectional evaluation in hospital setting(ASSOCIACAO PAULISTA MEDICINA, 2015) Korkmaz, Ozge; Yucel, Hasan; Zorlu, Ali; Berkan, Ocal; Kaya, Hakki; Goksel, Sebahattin; Beton, Osman; Yilmaz, Mehmet BirhanCONTEXT AND OBJECTIVE: The location of embolism is associated with clinical findings and disease severity in cases of acute pulmonary embolism. The level of gamma-glutamyl transferase increases under oxidative stress-related conditions. In this study, we investigated whether gamma-glutamyl transferase levels could predict the location of pulmonary embolism. DESIGN AND SETTING: Hospital-based cross-sectional study at Cumhuriyet University, Sivas, Turkey. METHODS: 120 patients who were diagnosed with acute pulmonary embolism through computed tomography-assisted pulmonary angiography were evaluated. They were divided into two main groups (proximally and distally located), and subsequently into subgroups according to thrombus localization as follows: first group (thrombus in main pulmonary artery; n = 9); second group (thrombus in main pulmonary artery branches; n = 71); third group (thrombus in pulmonary artery segmental branches; n = 34); and fourth group (thrombus in pulmonary artery subsegmental branches; n = 8). RESULTS: Gamma-glutamyl transferase levels on admission, heart rate, oxygen saturation, right ventricular dilatation/ hypokinesia, pulmonary artery systolic pressure and cardiopulmonary resuscitation requirement showed prognostic significance in univariate analysis. The multivariate logistic regression model showed that gamma-glutamyl transferase level on admission (odds ratio, OR = 1.044; 95% confidence interval, CI: 1.011-1.079; P = 0.009) and pulmonary artery systolic pressure (OR = 1.063; 95% CI: 1.005-1.124; P = 0.033) remained independently associated with proximally localized thrombus in pulmonary artery. CONCLUSIONS: The findings revealed a significant association between increased existing embolism load in the pulmonary artery and increased serum gamma-glutamyl transferase levels.Öğe Evaluation of Atrial Electromechanical Delay to Predict Atrial Fibrillation in Hemodialysis Patients(MDPI, 2018) Gunes, Hakan; Sokmen, Abdullah; Kaya, Hakki; Gungor, Ozkan; Kerkutluoglu, Murat; Guzel, Fatma Betul; Sokmen, GulizarBackground and objective: Prevalence of atrial fibrillation is higher in hemodialysis patients as compared to the general population. Atrial electromechanical delay is known as a significant predictor of atrial fibrillation. In this study, we aimed to reveal the relationship between atrial electromechanical delay and attacks of atrial fibrillation. Materials and methods: The study included 77 hemodialysis patients over 18 years of age giving written consent to participate in the study. The patients were divided into two groups based on the results of 24-h Holter Electrocardiogram (Holter ECG) as the ones having attacks of atrial fibrillation and the others without any attack of atrial fibrillation. Standard echocardiographic measurements were taken from all patients. Additionally, atrial conduction times were measured by tissue Doppler technique and atrial electromechanical delays were calculated. Results: Intra- and interatrial electromechanical delay were found as significantly lengthened in the group of patients with attacks of atrial fibrillation (p = 0.03 and p < 0.001 respectively). The optimal cut-off time for interatrial electromechanical delay to predict atrial fibrillation was >21 ms with a specificity of 79.3% and a sensitivity of 73.7% (area under the curve 0.820; 95% confidence interval (CI), 0.716-0.898). In the multivariate logistic regression model, interatrial electromechanical delay (odds ratio = 1.230; 95% CI, 1.104-1.370; p < 0.001) and hypertension (odds ratio = 4.525; 95% CI, 1.042-19.651; p = 0.044) were also associated with atrial fibrillation after adjustment for variables found to be statistically significant in univariate analysis and correlated with interatrial electromechanical delay. Conclusions: Interatrial electromechanical delay is independently related with the attacks of atrial fibrillation detected on Holter ECG records in hemodialysis patients.Öğe Frequency of genetic polymorphism for adrenergic receptor beta and cytochrome p450 2D6 enzyme, and effects on tolerability of beta-blocker therapy in heart failure with reduced ejection fraction patients: The Beta GenTURK study(TURKISH SOC CARDIOLOGY, 2016) Zoghi, Mehdi; Kaya, Hakki; Cavusoglu, Yuksel; Aksakal, Enbiya; Demir, Serafettin; Yucel, Ceyhun; Mutlu, Hasim; Ergene, Oktay; Yilmaz, Mehmet BirhanObjective: The present objective was to determine frequency of Arginine389Glycine (Arg389Gly) and Cytochrome p450 2D6*10 (Cyp2D6*10) polymorphism in cases of heart failure-reduced ejection fraction (HFREF), and to evaluate the influence of the polymorphisms in response to beta-blocker (BB) therapy. Methods: A total of 206 HFREF patients and 90 healthy controls were prospectively enrolled. Genotypes for Arg389Gly and Cyp2D6*10 polymorphisms of the healthy controls and 162 of the 206 heart failure (HF) patients were measured, identified by polymerase-chain-reaction-and restriction-fragment-length-polymorphism analysis. HFREF patients and healthy controls were compared regarding Arg389Gly polymorphism. The HFREF patients were separated into 2 subgroups based on achievement of maximal target dose (MTD) of BB. Results: When comparing frequency of genotype distribution for Arg389Gly polymorphism in HFREF patients to the healthy controls, a statistically significant association was observed with CC genotype and Glisin-Glisin (GG) genotype (p<0.001, odds ratio [OR]=16, confidence interval [CI]: 3.8-67.9 and p<0.001, OR=0.3, CI: 0.2-0.6). Frequency of genotypes for Arg389Gly and Cyp2D6* 10 polymorphism were similar in patients who could or could not achieve BB MTD (p=0.13 and p=0.60, respectively). Conclusion: The frequency of Arg389Gly polymorphism in patients with HFREF in the present Turkish population differed from that of the healthy controls. However, neither Arg389Gly polymorphism nor Cyp2D6* 10 polymorphism was associated with dose tolerability of BB therapy.Öğe Hemogram parameters for predicting pulmonary embolism in patients with deep venous thrombosis(DOVE MEDICAL PRESS LTD, 2015) Kaya, Hakki; Kurt, Recep…Öğe Higher cancer antigen 125 level is associated with the presence of permanent atrial fibrillation in systolic heart failure patients(ACTA CARDIOLOGICA, 2016) Kaya, Hakki; Zorlu, Ali; Yucel, Hasan; Tatlisu, Mustafa Adem; Kivrak, Tarik; Coskun, Abuzer; Yilmaz, Mehmet BirhanIntroduction Atrial fibrillation (AF) is a common arrhythmia in heart failure (HF). Recent studies have shown that serum cancer antigen-125 (CA-125) levels are elevated in HF, and high levels of CA-125 in HF patients with sinus rhythm have been shown to be associated with the development of new onset AF. However, the relation between CA-125 levels and the presence of AF in HF is unknown. In this study we investigated whether plasma CA-125 levels in patients with systolic HF could predict the presence of AF. Methods The study was a retrospective cohort design including 205 stable systolic HF patients who were selected during outpatient clinic visits and who had CA-125 measurement and an electrocardiogram within the last one month before admittance to cardiology clinic. Patients were classified into two groups based on the presence of AF (n=67) or sinus rhythm (n=138). Results The mean age of the patients was 68 11 years. CA-125 levels were significantly higher in patients with AF than patients with SR [33 (3-273) vs 102 (7-296) U/ml, P < 0.001]. CA-125 level, presence of right ventricular dilatation, pericardial effusion, moderate to severe TR and MR, and left atrial diameter were found to be associated with the presence of AF in univariate analysis. In a multivariate logistic regression model, only the CA-125 level remained associated. Also, according to the ROC curve analysis, the optimal cut-off level of CA-125 for predicting AF was 91 U/mL with a specificity of 84% and a sensitivity of 54%. Conclusion We have shown that the CA-125 levels can be used to predict AF in patients with systolic HF.Öğe How to increase level of patients' awareness regarding the importance of statins despite the influence of the media?(ELSEVIER IRELAND LTD, 2016) Kaya, Hakki; Beton, Osman; Yilmaz, Mehmet Birhan…Öğe Influence of influenza vaccination on patients with heart failure(URBAN & VOGEL, 2017) Kaya, Hakki…Öğe Influence of Regular Blood Donation Onto Flow Mediated Vasodilatation(ELSEVIER SCIENCE INC, 2013) Yucel, Hasan; Kaya, Hakki; Zorlu, Ali; Yilmaz, Mehmet Birhan…