Browsing by Author "Aktan, A."

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Ability of Cha2ds2-vasc/R2cha2ds2-vasc Scores To Predict Complications Related To Cardiac Implantable Electronic Devices
(John Wiley and Sons Inc, 2025) Söner, S.; Aktan, A.; Kılıç, R.; Güzel, H.; Taştan, E.; Okşul, M.; Güzel, T.
Background: Globally, the number of cardiac implantable electronic devices (CIEDs) is increasing. In our study, we aimed to investigate whether CHA2DS2-VASc and R2CHA2DS2-VASc scores are predictive of CIED-related complications. Methods: Our investigation was carried out with a multicenter retrospective design. Patients who underwent CIED surgery at two cardiac centers in Turkey between January 2011 and May 2023, 1676, were evaluated. The patients were divided into two groups according to their R2CHA2DS2-VASc scores. Patients with R2CHA2DS2-VASc ≥ 5 were included in group 1 (380 patients), and patients with R2CHA2DS2-VASc < 5 (1296 patients) were included in group 2. The primary outcome was defined as the cumulative events. Each component of cumulative events, such as hematoma, pericardial effusion, pneumothorax, and infection, was also defined as a secondary outcome. Results: The study's patient population had an average age of 62.9 ± 14 years. Pneumothorax (1.8% vs. 1.3%, p = 0.444), pericardial effusion or tamponade (0.35% vs. 0.2%, p = 0.659), and clinically significant hematoma (1.1% vs. 0.6%, p = 0.376) were comparable between the groups. Infection-related devices and cumulative events classified as primary outcomes were higher in the R2CHA2DS2-VASc ≥ 5 group (6.1% vs. 1.2%, p < 0.001; 7.6% vs. 3.2%, p < 0.001, respectively). Modeling analyses showed that the CHA2DS2-VASc score and HT were also independent predictors of device-related infection and cumulative events. Conclusion: In the R2CHA2DS2-VASc ≥ 5 groups, infection related to the device system and cumulative events were higher. Patients with an R2CHA2DS2-VASc score of 5 or more and a high CHA2DS2-VASc score should be evaluated more carefully regarding infection and cumulative events before and after the operation. © 2025 Wiley Periodicals LLC.
Association Between Abo Blood Group, Peripheral Artery Disease Lesion Severity, and Coronary Artery Disease Coexistence
(Elsevier Inc., 2025) Evsen, A.; Aktan, A.; Kılıç, R.; Özbek, M.
Background: This study aims to investigate the relationship between ABO blood groups and the severity of peripheral artery disease (PAD) lesions, the coexistence of coronary artery disease (CAD) with PAD, and to identify which blood groups may be more predisposed to these conditions. Methods: This study, which has a single-center and retrospective design, includes 305 patients diagnosed with peripheral artery disease (PAD) between 2015 and 2021. The patients were selected from those with at least 50% stenosis detected by computed tomography (CT) angiography. The severity of PAD lesions was evaluated according to the TransAtlantic Inter-Society Consensus (TASC-II) classification, and the presence of CAD was determined by simultaneous conventional coronary angiography. Demographic data, comorbidities, and laboratory results were collected, and statistical analyses were performed using chi-square tests, logistic regression, and t-tests. All of these patients were divided into 2 groups based on their ABO blood types: O and non-O blood groups. Results: This study demonstrates a significant relationship between blood group classification and both the severity of PAD and the prevalence of CAD. Patients with non-O blood groups exhibited a higher likelihood of having severe PAD lesions (TASC-C and TASC-D) compared to those with O blood groups, who more frequently had milder lesions (TASC-A and TASC-B) (P < 0.001). The prevalence of CAD was also significantly higher among patients with non-O blood groups than those with the O blood group (54.4% vs. 36.4%; P = 0.003). In the logistic regression analysis, non-O blood groups, alongside age, hypertension (HT), and chronic kidney disease (CKD), emerged as independent predictors of severe PAD (P < 0.001 for non-O blood groups). Similarly, older age and non-O blood group status were identified as significant independent predictors of CAD (P = 0.004). These findings suggest that blood group classification, particularly non-O groups, may influence the severity and coexistence of PAD and CAD. Conclusion: Our study reveals a significant association between ABO blood groups and both the severity of PAD and the association of CAD, and shows that non-O blood groups are linked to more severe forms of these conditions. These findings highlight the potential role of ABO blood groups in cardiovascular risk stratification, suggesting a need for further research to confirm these associations and understand their clinical implications. © 2025 Elsevier Inc.
Comparison of Chitosan-Containing Hemostatic Pad and Manual Compression After Coronary Angiography With Femoral Access
(Sociedade Brasileira de Cardiologia, 2024) Kiliç, R.; Güzel, T.; Aktan, A.; Kaya, A.F.
Background: Femoral access remains a common choice in coronary angiography due to its easy accessibility and high success rate. Various techniques exist for achieving hemostasis following femoral artery catheterization. Objectives: The aim of our study is to compare the methods of chitosan-containing hemostatic pad (HP) and manual compression (MC) in terms of efficacy and safety in patients undergoing percutaneous coronary intervention (PCI) with coronary angiography via femoral access. Method: A total of 204 patients from 3 centers were included in our study between August 2021 and June 2023. The patients were divided into 2 groups, HP and MC, with 102 patients in each. Patients were evaluated for back and low back pain, complications, and duration of hemostasis immediately after angiography and up to 24 hours. Student’s t test and Mann-Whitney U test were used for numerical variables, while chi-square test was used for categorical variables. P < 0.05 was considered statistically significant. Results: Hemostasis time and back and low back pain were significantly lower in the HP group (7.5 ± 1.1 versus 15.1 ± 1.6, p < 0.001 and 2.13 ± 1.29 versus 4.22 ± 1.69, p < 0.001, respectively). While ecchymosis was found to be significantly lower in the HP group (2.9% versus 14.7%, p = 0.003), there was no significant difference in terms of other complications. Conclusion: HP was found to be more advantageous than MC in patients who underwent coronary angiography with femoral access. While ecchymosis and back and low back pain were found to be lower in the HP group, the absence of the need for sandbags also increases patient comfort. © 2024, Sociedade Brasileira de Cardiologia. All rights reserved.
Predictive Value of Nutritional Scores in Non-Valvular Atrial Fibrillation Patients: Insights From the After-2 Study
(Elsevier B.V., 2025) Söner, S.; Güzel, T.; Aktan, A.; Kılıç, R.; Arslan, B.; Demir, M.; Ertaş, F.
Background and aim: Many scoring systems are used to evaluate malnutrition, but there is no consensus on which scoring system would be more appropriate. We aimed to investigate the effect of malnutrition in patients with non-valvular atrial fibrillation (NVAF) and to compare three scoring systems. Methods and results: A total of 2592 patients with non-valvular AF from 35 different centers in Turkey were included in this prospective study. All participants were divided into two groups: 761 patients who died and 1831 patients who were alive. The malnutrition status of all participants was evaluated with three scoring systems. The primary outcome was all-cause mortality. The mean age of the population was 68.7 ± 11.1 years, and 55.5 % were female. According to Cox regression analysis, the geriatric nutritional risk index (GNRI) (HR = 0.989, 95 % CI: 0.982–0.997, p = 0.007), controlling nutritional status (CONUT) score (HR = 1.121, 95 % CI: 1.060–1.185, p < 0.001), and prognostic nutritional index (PNI) (HR = 0.980, 95 % CI: 0.962–0.999, p = 0.036) were found to be significant mortality predictors. ROC curve analysis indicated GNRI (AUC = 0.568), CONUT (AUC = 0.572), and PNI (AUC = 0.547) had moderate predictive values. Kaplan-Meier analysis showed that increasing the risk class based on GNRI (p < 0.001) and CONUT (p < 0.001) was associated with decreased survival, while PNI staging had no statistically significant effect (p = 0.266). Conclusions: Malnutrition, determined by three scoring systems, was found to be an independent predictor of all-cause mortality in NVAF patients. Nutritional examination may provide useful information for prognosis and risk stratification in patients with NVAF. © 2024 The Italian Diabetes Society, the Italian Society for the Study of Atherosclerosis, the Italian Society of Human Nutrition and the Department of Clinical Medicine and Surgery, Federico II University