Kardiyoloji Anabilim Dalı Koleksiyonu

Permanent URI for this collectionhttps://hdl.handle.net/20.500.12514/4211

Browse

Now showing 1 - 20 of 37

An Evaluation of Cardiovascular Risk Factors Among Military Personnel: A Study Conducted in Turkey
(2022) Günlü, Serhat; Karahan, Mehmet Zülkif
Background: Cardiovascular (CV) risk factors are associated with high morbidity and mortality rates; however, prevalence data for Turkish military members are unknown. Aim: This study determines how common cardiovascular risk factors are among military members in the Corps Command Military Unit and how they relate to socio-demographic parameters. Materials and Methods: A cross-sectional research was conducted with 25222 active-duty individuals. A questionnaire was used to assess cardiovascular risk factors. This study included patients with more than two risk factors or current cardiac complaints. ECGs, echocardiograms, and biochemical testing were performed. Results: The study employed 835 individuals with an average age of 19.43±2.12 years. 19.6% of them had hypertension, 5.6% had dyslipidemia, 39.6% were smokers, 2.4% had diabetes mellitus, and 9.8% had a positive family history. Physical activity frequency was not observed in 54% of the patients before enlisting in the military. There was a significant positive correlation between smoking and mental stress (r=1.07, p<0.001). Conclusion: In terms of cardiovascular risk, hypertension and smoking were found to be the most prevalent among the Corps command staff. Therefore, this study provides compelling evidence that military healthcare providers should conduct annual periodic checks on those at risk for cardiovascular diseases.
The Significance of Frontal Plane QRS-T Angle for Estimating Non-Dipper Hypertension
(Cureus, 2022) Karahan, Mehmet Zülkif; Karahan, Mehmet Zülkif
Objective: The frontal QRS-T angle (fQRS-T) is linked to myocardial ischemia and ventricular arrhythmias. On the other hand, non-dipper hypertension is a risk factor for cardiac adverse events. The objective of this research was to determine whether the fQRS-T, a marker of ventricular heterogeneity, could be used to predict non-dipper hypertensive individuals in the lack of left ventricular hypertrophy. Methods: The observational study was carried out retrospectively. Patients diagnosed with hypertension were included in this study. Blood tests were routinely conducted for all patients. Electrocardiography (ECG) was conducted for each patient and echocardiography was performed. Blood pressure (BP) values were collected from the ambulatory Holter records. According to ambulatory Holter monitoring, the individuals were separated into two groups. The association between fQRS-T and hypertension was investigated. Results: The research involved 123 patients, with an average age of 51.85±8.22 years, comprising 76 women (61.8%) and 47 males (38.2%). According to ambulatory Holter monitoring, patients were separated into dippers (n=65) and non-dippers (n=58). There were no statistically significant in the laboratory and echocardiographic variables (p>0.05). QT dispersion (QTd) and fQRS-T were substantially greater in the non-dipper group than in the dipper group (p=0.043 and p<0.001, respectively). Independent determinants of non-dipper status were determined by univariate and multivariate logistic regression analyses. fQRS-T was found to be the only independent indicator of non-dipper status (OR: 1.03, 95%CI: 1.02-1.06, p<0.001). Conclusion: The fQRS-T may be a useful marker for estimating non-dipper hypertensive individuals in the lack of left ventricular hypertrophy.
Vatanından Uzakta Ölmek” Palyatif Bakım Kliniğinde Ölen 7 Suriye Uyruklu Hasta ve Ülkemizin Sığınmacıların Sağlık İhtiyaçlarını Karşılamadaki Rolü
(2022) Akelma, Hakan; Karahan, Mehmet Zülkif
Savaşlar, iç çatışmalar telafisi mümkün olmayan yıkımlara neden olup, en çok da sivilleri etkilemektedir. Yıkımın etkisi başta ikincil şahıslara ihtiyaç duyan çocuk, yaşlı ve kadınlar için daha belirgindir. Şu anda dünyadaki sığınmacıların yarısından fazlası Suriye’de hayatlarını kurtarmak için ülkelerinden ayrılmak zorunda kalan sığınmacılardan oluşmaktadır. Siyasal, sosyal, kültürel ve ekonomik açıdan toplumu ve bireyleri etkileyen yurdundan edilme durumu sağlık sorunlarını da beraberinde getirmektedir. Sığınmacılar zor yaşam koşulları, barınma, beslenme, şiddet ve psikolojik travmalar gibi birçok neden ile sağlık bakım sisteminde en kırılgan ve savunmasız gruplardandır. Kendi yaşam alanlarından zorunlu olarak ayrılan bireylerin yaşam konforlarının azalması ve yaşadıkları psikolojik yıkım, beraberinde bulaşıcı hastalıklar, kardiyovasküler hastalıklar, diyabet, kanser ve akciğer hastalıkları gibi kronik hastalıkların riskini artırmaktadır. Bu hastalıklara bağlı palyatif bakım ünitelerine yatışlar artmakta ve bu kliniklerde yaşam koşullarından daha iyi şartlarda sağlık hizmeti almakta ancak hastalıklarının şiddetine göre ölümler gerçekleşmektedir. Türkiye, sığınmacılara mümkün olan en iyi yaşam koşullarını ve kapsamlı insani yardımı sağlamaktadır. Sığınmacılar hem kamplarda hem de barındıkları iskânlarda tüm sağlık hizmetlerini sürdürmektedir. Bu sığınmacılar aynı şekilde gerekli durumlarda palyatif bakım hizmetlerinden faydalanmaktadır. Bu çalışmanın amacı palyatif bakım kliniklerde özellikle kanser, diyabet ve diğer kronik hastalıklar sonucu hayatını kaybeden sığınmacı hastaların değerlendirilmesi ve bunun yanında ülkemiz sağlık bakımındaki desteğini vurgulamaktır.
Mİ YOK A RDİT
(2023) Kayan, Fethullah
GİRİŞ Miyokardit, öncelikle çocukları ve genç yetişkin- leri etkileyen, nadir görülen, potansiyel olarak ölümcül ve genellikle yetersiz teşhis edilen bir kalp yetmezliği nedenidir. Akut miyokardit insidansı küresel olarak yılda yaklaşık 1,5 milyon vaka olarak tahmin edilmek- tedir (1). Miyokardit, asemptomatik olabileceği gibi kalp nakli gerektirebilecek kadar ileri derecede kalp yetmezliğine neden olabilen çok geniş bir klinik yelpazeye sahiptir. Bu sebeple miyokardit, klinik prezentasyonunun heterojenliği nedeniyle zor bir tanıdır. Miyokarditin kalp yetmezliği (Heart Failu- re-HF) nedeni olarak katkısı, yaşa ve bölgeye göre yaklaşık olarak % 0.5 ila % 4.0 arasında değişir (2). Açıklanamayan non-iskemik dilate kardiyomi- yopatisi (DKM) olan yetişkin hastaların %9-16’sın- dan sorumlu olduğu düşünülmektedir. (3) The Global Burden of Disease çalışmasına göre, 1990 ile 2013 yılları arasında hastaneden taburcu olma belgelerindeki Uluslararası Hasta- lık Sınıflandırması (ICD) kodlarına dayalı olarak Fethullah KAYAN 1 100.000 hasta başına 22 miyokardit vakası in- sidansı bildirmiştir.(4) Hastaların yaklaşık üçte ikisi erkekti ve ortalama yaş erkeklerde 33, kadın- larda 46’dır. Hafif semptomlar ve minimal ventriküler disfonksiyonla başvuran hastalarda miyokardit genellikle özel tedavi olmaksızın spontan olarak iyileşir.(5)
Evaluation of Frontal QRS-T Angle in Patients with Coronary Artery Ectasia
(Sociedade Brasileira de Cardiologia – SBC, 2023) Günlü, Serhat; Karahan, Mehmet Zülkif; Aktan, Adem; Kayan, Fethullah; Günlü, Serhat
Background: Coronary artery ectasia (CAE) is defined by focal enlargement of the coronary artery exceeding 1.5 times the adjacent normal segment. CAE can often cause arrhythmias, heart failure, sudden death, and myocardial ischemia. Ischemia due to microvascular dysfunction may be responsible for the ventricular heterogeneity in CAE. Objectives: The aim of our study was to evaluate the frontal QRS-T angle in patients with CAE. Methods: Our study included 55 patients with CAE and 50 individuals in the control group. Demographic characteristics and electrocardiographic parameters were compared between the two groups. Categorical variables were compared using the chi-square test. Continuous variables were compared using unpaired Student’s t-test. P values < 0.05 were considered statistically significant. The frontal QRS-T angle was calculated from 12-lead electrocardiograms (ECGs) using the automatic report from the electrocardiography machine. Results: The average age of patients with CAE was 63.2 ± 3.4 years, with 18 women among them. The control group had an average age of 61.1 ± 3.2 years, with 28 women included. There was no significant difference in demographic parameters between the two groups. Compared to the control group, patients with CAE had significantly wider frontal QRS-T angle (p < 0.001), as well as longer QTmax duration, p = 0.002; Tp-Te interval, p = 0.02; and QT dispersion (QTd), p = 0.04. Conclusion: The frontal QRS-T angle can be calculated easily and time-efficiently using surface electrocardiography. In this study, we showed for the first time that the frontal QRS-T angle was significantly increased in patients with CAE.
Aging and cardiac implantable electronic device complications: is the procedure safe in older patients?
(ELSEVIER, 2023) Günlü, Serhat; Aktan, Adem; Kılıç, Raif; Günlü, Serhat; Arslan, Bayram; Arpa, Abdulkadir; Güzel, Hamdullah; Tatlı, İsmail; Aydın, Saadet; Suzan, Veysel; Demir, Muhammed
Background In this study, we investigated whether there is a higher incidence of cardiac implantable electronic devices (CIED) procedures related complications in older (≥75 years) than in younger (<75 years) patients. Methods This retrospective cohort study enrolled patients who had undergone CIED procedures (de novo implantation, system upgrade, generator substitution, pocket revision or lead replacement) at two heart centers in Turkey between January 2011 and May 2023. The primary composite endpoint included clinically signifcant hematoma (CSH), pericardial efusion or tamponade, pneumothorax, and infection related to the device system. Secondary outcomes included each component of the composite end point. Results The overall sample included 1923 patients (1419<75 years and 504 aged≥75 years). There was no diference between the groups in terms of cumulative events defned as primary outcome (3.5% vs. 4.4%, p=0.393). Infection related to device system was signifcantly higher in the≥75 age group (1.8% vs. 3.4%, p=0.034). There was no signifcant diference between the groups in terms of clinically signifcant hematoma and pneumothorax (0.7% vs. 0.4%, p=0.451, 1.4% vs. 1.0%, p=0.477, respectively). In multivariate model analysis, no association was found between age≥75 years and infection related to the device system. Conclusion Infection rates were relatively higher in the patient group aged≥75 years. This patient group should be evaluated more carefully in terms of infection development before and after the procedure.
Aging and cardiac implantable electronic device complications: is the procedure safe in older patients?
(Springer, 2023) Günlü, Serhat; Aktan, Adem; Kılıç, Raif; Günlü, Serhat; Arslan, Bayram; Arpa, Abdulkadir; Güzel, Hamdullah; Tatlı, İsmail; Aydın, Saadet; Suzan, Veysel; Demir, Muhammed
Background: In this study, we investigated whether there is a higher incidence of cardiac implantable electronic devices (CIED) procedures related complications in older (≥ 75 years) than in younger (< 75 years) patients. Methods: This retrospective cohort study enrolled patients who had undergone CIED procedures (de novo implantation, system upgrade, generator substitution, pocket revision or lead replacement) at two heart centers in Turkey between January 2011 and May 2023. The primary composite endpoint included clinically significant hematoma (CSH), pericardial effusion or tamponade, pneumothorax, and infection related to the device system. Secondary outcomes included each component of the composite end point. Results: The overall sample included 1923 patients (1419 < 75 years and 504 aged ≥ 75 years). There was no difference between the groups in terms of cumulative events defined as primary outcome (3.5% vs. 4.4%, p = 0.393). Infection related to device system was significantly higher in the ≥ 75 age group (1.8% vs. 3.4%, p = 0.034). There was no significant difference between the groups in terms of clinically significant hematoma and pneumothorax (0.7% vs. 0.4%, p = 0.451, 1.4% vs. 1.0%, p = 0.477, respectively). In multivariate model analysis, no association was found between age ≥ 75 years and infection related to the device system. Conclusion: Infection rates were relatively higher in the patient group aged ≥ 75 years. This patient group should be evaluated more carefully in terms of infection development before and after the procedure.
Evaluation of Right Ventricular Global Longitudinal Strain in COVID-19 Patients After Intensive Care Unit Discharge
(2023) Günlü, Serhat; Aktan, Adem; Kılıç, Raif; Kayan, Fethullah; Kılıç, Raif; Kayan, Fethullah; Işık, Mehmet Ali; Çelikten, Murat; Arslan, Bayram; Karahan, Mehmet Zülkif
Background and Aim: Using two-dimensional speckle tracking echocardiography (2D-STE), the ventricular functions of hospitalized coronavirus disease-2019 (COVID-19) patients were assessed. However, there is limited information about cardiac functions in the first year after recovery from the intensive care unit (ICU). This research aims to assess the right ventricular functions of COVID-19 patients and their changes within the first year after ICU discharge using 2D-STE. Materials and Methods: The study was conducted prospectively. The study included 68 consecutive patients and 70 control patients. Echocardiography was performed in the ICU and the first year after discharge from the hospital. Right ventricular global longitudinal strain (RVGLS) was measured using the 2D-STE method. Results: The mean age of the study group was 48.67±8.10 and 37 (54.4%) patients were males. There were no substantial differences across the groups, including age, gender, body mass index, heart rate, diabetes, dyslipidemia, and smoking (P > 0.05). A substantially significant positive correlation was detected between right ventricular dimension (RAD) (r = 0.644, P < 0.001), right ventricular diastolic dimension (RVDD) (r = 0.573, P < 0.001), ferritin (r = 0.454, P < 0.001), D-dimer (r = 0.305, P = 0.011) values and RVGLS in the in-hospital and after-discharge first-year groups. The RVGLS values of the control, in-hospital, and after-discharge first-year groups were -20.36±3.06, -16.98±3.78, and -17.58±6.45, indicating a statistically significant difference across the groups (P < 0.001). Tricuspid annular plane systolic excursion was higher in the control group (P < 0.05). Conclusion: RVGLS was found to be depressed during the in-hospital period and showed no improvement in the 1 year post discharge.
Prevalence of Hypertension in Military Personnel: A Study Conducted in Türkiye
(2023) Günlü, Serhat; Karahan, Mehmet Zülkif
Abstract: Hypertension is a major global public health concern. There is a paucity of studies describing military populations with hypertension. We aimed to demonstrate Turkish military personnel with hypertension and review associated factors in a garrison of Diyarbakır City. This retrospective cross-sectional study comprised 22,141 individuals referred to an outpatient cardiology clinic between August 2016 and June 2022 with complaints of early morning headaches, abnormal heart rhythms, nosebleeds, visual problems, and buzzing in the ears. Sociodemographic characteristics were collected. Analyses of laboratory test findings and blood pressure measurements were conducted. The study comprised a total of 174 patients with an average age of 32.68±6.51 years. 94.8 percent of the patients were not drug users, and 68.3 percent had no strong family history. The prevalence of hydration habits (29.4%) and sleep disturbances (22.5%) were lower. According to body mass index (BMI), the rate of overweight was higher (56.8%). Most patients' educational status was bachelor’s degrees (46.5%). The smoking rate was high (73%). Body mass index was a statistically significant predictive factor of hypertension (OR [95% CI], 2.69 [1.0-7.17], p= 0.048). Physical exercise rate in the past three months was a statistically significant predictive factor for hypertension (OR [95%CI], 2.98 [1.42-6.23], P= 0.021). Hypertension was detected in 0.78 percent of all participants and was associated with being overweight and a lower frequency of physical exercise.
Predicting the mortality in patients with carotid artery stenosis by monocyte to high density lipoprotein ratio
(2023) Günlü, Serhat
Introduction: Background: Monocytes, which produce a variety of cytokines and molecules, interact with platelets and endothelial cells, causing inflammatory and thrombotic pathways to become worse. Macrophage migration and oxidation of low-density lipoprotein cholesterol molecules are both inhibited by high-density lipoprotein cholesterol (HDL-C). HDL-C neutralizes monocytes' pro-inflammatory and pro-oxidant effects through several mechanisms. As a result, characteristics like the monocyte to HDL-C ratio (MHR) may reveal a patient's inflammatory status. Objective: The development of carotid artery stenosis (CAS) is influenced by inflammation, oxidative stress, and endothelial dysfunction. Recent research suggests that inflammatory biomarkers are important for assessing mortality in carotid artery stenosis. This study aims to determine the association between MHR and mortality after carotid artery stenting. Tools and Method: We enrolled 260 patients with CAS who underwent carotid artery stenting between 2019 and 2021. MHR was calculated using the formula: the monocyte value dividing by the high-density lipoprotein cholesterol value. According to 30-day mortality, the patients were divided into two groups; surviving and non-surviving. Monocyte counts, HDL-C, and MHR values were compared between the groups. Results: The patient group had significantly higher monocyte counts and lower HDL levels than the control group, resulting in higher MHR values. In addition, non-surviving patients had a higher monocyte count and MHR value, as well as a lower HDL-C level (p<0.001). In patients with CAS, the MHR value was also found to be a significant independent determinant of 30-day mortality (p<0.001). MHR had the optimum cut-off value of 17.52 with 78.3% sensitivity and 83.4% specificity (AUC:0.724, p<0.001) for predicting 30-day mortality in patients with CAS. Comparison of the monocyte count, HDL level, and MHR value according to the mortality within the 30 days. Non-surviving group n=48 Surviving group n=212 P-values Monocyte (x109 µL) 915.42±53.21 524.03±9.98 <0.001 HDL-C (mg/dL) 37.03±1.16 46.22±0.9 <0.001 MHR 18.86±5.25 12.21±2.21 <0.001 Values are presented as mean ± SD and median [interquartile range]. HDL-C; high-density lipoprotein cholesterol, MHR; monocyte to high-density lipoprotein ratio. Discussion: Conclusion: In patients with CAS, a high MHR value was found to be an independent predictor of 30-day mortality.
METABOLİK SENDROM VE KARDİYO-ELEKTROFİZYOLOJİK DENGE
(2023) Kayan, Fethullah
Amaç: Kardiyovasküler morbidite ve ölüm, metabolik sendromun daha yüksek prevalansıyla ilişkilidir. Kardiyak elektrofizyolojik denge indeksi (iCE), QT aralığı/QRS süresi olarak tanımlanır ve yükselmiş Tp-e/QT oranı kötücül ventriküler aritmilere ilişkin öngörücüdür. Bu araştırmanın amacı, metabolik sendrom (MS) ile iCE ve Tp-e/QT oranı arasındaki ilişkiyi belirlemektir. Yöntem: Bu araştırma, 40 ila 70 yaş arasındaki 90 hastadan oluşmaktadır ve iki gruba ayrılmıştır: metabolik sendromlu 45 hasta (21 erkek, ortalama yaş 58.7±1.4 yıl) ve kontrol grubu (24 erkek, ortalama yaş 55.1±2.3 yıl). Tüm hastalara standart 12 derivasyonlu elektrokardiyogram kaydı yapıldı. Tp-e aralığı, QT aralığı, QRS süresi, Tp-e/QT oranı ve QT/QRS oranı belirlendi. Sonuçlar: İki grup arasında temel özellikler açısından istatistiksel olarak anlamlı bir farklılık bulunmadı (Tablo 1).
The Diagnostic Role Of End-Tidal CO2 To Distinguish Unstable Angina Pectoris In Patients With Chest Pain
(2023) Günlü, Serhat; Yeşil, Ahmet; Kayan, Fethullah; Karahan, Mehmet Zülkif
Objective: Unstable angina pectoris (UAP), one of the acute coronary syndrome (ACS) types, is difficult to identify from non-cardiac chest pain (non-CCP), hence various strategies are applied for accurate diagnosis. This study aims to examine whether non-invasively measured end-tidal CO2 (ETCO2) can detect UAP in patients admitted to the emergency department (ED) with chest pain in the lack of a cardiovascular history. Methods: This research was conducted as a prospective observational study. The individuals were separated into two groups based on the inclusion and exclusion criteria: 75 patients with non-CCP and 75 UAP. Analyses of receiver operating characteristics (ROC) were utilized to define the diagnostic value cutoff. Using univariate regression analysis, the odds ratio of ETCO2 (with 95%CI) was computed for UAP prediction. Results: ETCO2 levels were substantially lower in the UAP group compared to the non-CCP group (p<0.001). Analysis of the ROC curve revealed that a decreased ETCO2 <35 predicted UAP with 78% sensitivity and 89% specificity (AUC:0.81, p <0.001). In addition, the negative predictive value was 71.6%, and the positive predictive value was 79.4%. Patients with UAP were 8.84 times more likely to have ETCO2 <35 than patients with non-CCP. Conclusion: UAP may be differentiated from non-CCP by ETCO2 measured as a non-invasive parameter in patients with chest pain.
Akut Kalp Yetmezliğinde Tedavi Yaklaşımı
(AKADEMİSYEN, 2023) Günlü, Serhat
GIRIŞ Akut Kalp Yetmezliği (AKY) hastanın acil tıb- bi yardım alması için yeterince şiddetli bir kli- nik duruma, plansız bir hastaneye yatışa veya acil servis başvurusuna yol açan kalp yetmezliği semptomlarının ve/veya belirtilerinin hızlı veya aşamalı olarak başlamasını ifade eder (1). AKY’li hastalarının tedavilerinin planlanması için acil değerlendirilmesi gerekir. AKY, 65 yaş üstü kişi- lerde hastaneye yatışların önde gelen nedenidir (2). Yüksek mortalite ve tekrarlayan hastaneye yatış oranları mevcuttur. Hastane içi ölüm oranı %4 ila %10 arasında değişmektedir (3). Tabur- culuk sonrası 1 yıllık ölüm oranı %25-30, ölüm veya tekrar yatış oranları %45’ten fazladır (4). AKY, yeni başlayan KY’nin ilk belirtisi olabilir veya daha sıklıkla kronik KY’nin akut dekom- pansasyonuna bağlı ortaya çıkabilir (5). Akut de- kompanse kronik KY’si olan hastalarla akut pul- moner ödemli hastalar karşılaştırıldığında, akut pulmoner ödemi olanlar daha yüksek hastane içi mortaliteye sahiptirler ancak taburculuk sonra- sı mortalite ve yeniden hastaneye yatış oranları daha düşüktür (6). AKY’nin en sık tetikleyici fak- törleri atriyal fibrilasyon, akut MI veya iskemi, ilaç alımının (diüretik) kesilmesi, artmış sodyum yükü,miyokard fonksiyon bozukluklarına sebep olan ilaçlar ve aşırı fiziki efordur (7). Önceden var olan kardiyak disfonksiyonu olan hastalarda spesifik dış faktörler (anemi, GİS kanama, enfeksiyon vb.) AKY’yi hızlandırabilir (8).
Evaluation of Hematological Parameters After Transcatheter Aortic Valve Replacement
(SAGE, 2023) Günlü, Serhat; Karahan, Mehmet Zülkif; Aktan, Adem; Kılıç, Raif; Günlü, Serhat; Demir, Muhammed; Ertaş, Faruk
Although transcatheter aortic valve replacement (TAVR) is safe and effective, mortality and bleeding events post procedure are important. The present study investigated the changes in hematologic parameters to evaluate whether they predict mortality or major bleeding. We enrolled 248 consecutive patients (44.8% male; mean age 79.0 ± 6.4 years) undergoing TAVR. In addition to demographic and clinical examination, blood parameters were recorded before TAVR, at discharge, 1 month and 1 year. Hemoglobin levels before TAVR 12.1 ± 1.8 g/dL, 10.8 ± 1.7 g/dL at discharge, 11.7 ± 1.7 g/dL at first month, 11.8 ± 1.4 g/dL at first year (Hemoglobin values compared with pre-TAVR, P < .001, P = .019, P = .047, respectively). Mean platelet volume (MPV) before TAVR 8.72 ± 1.71 fL, 8.16 ± 1.46 fL at discharge, 8.09 ± 1.44 fL at first month, 7.94 ± 1.18 fL at first year (MPV values compared with pre-TAVR, P < .001, P < .001, P < .001, respectively). Other hematologic parameters were also evaluated. Hemoglobin, platelet count, MPV, and red cell distribution width before the procedure, at discharge, and at the first year did not predict mortality and major bleeding in receiver operating characteristic analysis. After multivariate Cox regression analysis, hematologic parameters were not independent predictors of in-hospital mortality, major bleeding, and death at 1 year after TAVR.
Evaluation of Hematological Parameters After Transcatheter Aortic Valve Replacement
(Sage Journals, 2023) Karahan, Mehmet Zülkif; Aktan, Adem; Kılıç, Raif; Günlü, Serhat; Günlü, Serhat; Demir, Muhammed; Ertaş, Faruk
Although transcatheter aortic valve replacement (TAVR) is safe and effective, mortality and bleeding events post procedure are important. The present study investigated the changes in hematologic parameters to evaluate whether they predict mortality or major bleeding. We enrolled 248 consecutive patients (44.8% male; mean age 79.0 ± 6.4 years) undergoing TAVR. In addition to demographic and clinical examination, blood parameters were recorded before TAVR, at discharge, 1 month and 1 year. Hemoglobin levels before TAVR 12.1 ± 1.8 g/dL, 10.8 ± 1.7 g/dL at discharge, 11.7 ± 1.7 g/dL at first month, 11.8 ± 1.4 g/dL at first year (Hemoglobin values compared with pre-TAVR, P < .001, P = .019, P = .047, respectively). Mean platelet volume (MPV) before TAVR 8.72 ± 1.71 fL, 8.16 ± 1.46 fL at discharge, 8.09 ± 1.44 fL at first month, 7.94 ± 1.18 fL at first year (MPV values compared with pre-TAVR, P < .001, P < .001, P < .001, respectively). Other hematologic parameters were also evaluated. Hemoglobin, platelet count, MPV, and red cell distribution width before the procedure, at discharge, and at the first year did not predict mortality and major bleeding in receiver operating characteristic analysis. After multivariate Cox regression analysis, hematologic parameters were not independent predictors of in-hospital mortality, major bleeding, and death at 1 year after TAVR.
The prognostic value of ORBIT risk score in predicting major bleeding in patients with acute coronary syndrome
(ELSEVIER, 2023) Günlü, Serhat; Kayan, Fethullah; Kılıç, Raif; Aktan, Adem; Kılıç, Raif; Aktan, Adem; Bernas, Altıntaş; Karahan, Mehmet Zülkif
Background: The most significant adverse effect of antithrombotic medication in acute coronary syndrome (ACS) is major bleeding, which is related to increased mortality. Studies on ORBIT risk score in predicting major bleeding in ACS patients are limited. Objective: This research aimed to examine whether the ORBIT score calculated at the bedside can identify major bleeding risk in patients with ACS. Methods: This research was retrospective, observational, and conducted at a single center. Analyses of receiver operating characteristics (ROC) were utilized to define the diagnostic value of CRUSADE and ORBIT scores. The predictive performances of the two scores were compared using DeLong's method. Discrimination and reclassification performances were evaluated by the integrated discrimination improvement (IDI), and net reclassification improvement (NRI). Results: The study included 771 patients with ACS. The mean age was 68.7 ± 8.6 years, with 35.3 % females. 31 patients had major bleeding. Twenty-three of these patients were BARC 3 A, five were BARC 3 B, and three were BARC 3 C. Bleeding history [OR (95 % CI), 2.46 (1.02–5.94), p = 0.021], hemoglobin levels [OR (95 % CI), 0.54 (0.45–0.63), p < 0.001], and age > 74 years [OR (95 % CI), 1.03 (1.01–1.06), p = 0.039] were independent predictors of major bleeding. The ORBIT score was an independent predictor of major bleeding in the multivariate analysis: continuous variables [OR (95 % CI), 2.53 (2.61–3.95), p < 0.001] and risk categories [OR (95 % CI), 3.06 (1.69–5.52), p < 0.001]. Comparison of c-indexes for major bleeding events revealed a non-significant difference for the discriminative ability of the two tested scores (p = 0.07) with a continuous NRI of 6.6 % (p = 0.026) and an IDI of 4.2 % (p < 0.001). Conclusion: In ACS patients, the ORBIT score independently predicted major bleeding.
Non-Dipper Blood Pressure Impact on Coronary Slow Flow in Hypertensive Patients With Normal Coronary Arteries
(Cureus, 2023) Karahan, Mehmet Zülkif; Karahan, Mehmet Zülkif
Objective: Coronary slow flow (CSF) is linked to myocardial ischemia, malignant arrhythmias, and cardiovascular mortality. On the other hand, hypertension (HTN) is an important risk factor for vascular disorders. There is limited research on the relationship between CSF and HTN. This study aimed to investigate TIMI frame count (TFC), which is an indicator of CSF, in dipper and non-dipper hypertensive individuals with normal coronary arteries. Methods: The study was conducted as a retrospective observational study. Patients diagnosed with CSF and dipper or non-dipper hypertension were included in this study. Blood tests were routinely conducted for all patients. ECG was conducted for each patient, and echocardiography was performed. Coronary artery images were obtained in the CAG laboratory. Blood pressure (BP) measurements were obtained from the ambulatory Holter records. The patients were separated into two groups based on ambulatory Holter monitoring. The relationship between CSF and HTN was also examined. Results: A total of 71 patients, comprising 25 women (37.2%) and 46 men (62.8%) with an average age of 52.75±9.42 years, were enrolled in the research. Based on ambulatory BP, the individuals were separated into two groups: non-dipper (n=36) and dipper (n=35). The pulse rate was significantly higher in the non-dipper group (p<0.001). In terms of mean systolic and diastolic blood pressure, there were no substantial differences across the groups (p = 0.326 and p = 0.654, respectively). The daytime mean systolic and diastolic BP did not significantly differ across the groups (p = 0.842 and p = 0.421). The dipper group had substantially lower nighttime systolic and diastolic BP values (p <0.001). The LAD, Cx, and RCA TIMI frame scores were significantly lower in the dipper group (p<0.001). Conclusion: In this study, non-dipper patients had a greater CSF rate than dipper.
The effect of body mass index on complications in cardiac implantable electronic device surgery
(WILEY, 2023) Günlü, Serhat; Aktan, Adem; Kılıç, Raif; Kılıç, Raif; Arslan, Bayram; Günlü, Serhat; Altıntaş, Bernas; Karahan, Mehmet Zülkif; Özbek, Mehmet; Aslan, Burhan; Arpa, Abdulkadir; Coşkun, Mehmet Sait; Altunbaş, Mahsum; Tüzün, Rohat; Akgümüş, Alkame; Karadeniz, Muhammed; Aydın, Saadet; Güzel, Hamdullah; Aslan, Selen Filiz; Söner, Serdar; Taş, Ahmet; Ertaş, Faruk
Background: Cardiac implantable electronic device (CIED) procedures are prone to complications. In our study, we investigated the effect of body mass index (BMI) on CIED-related complications. Methods: 1676 patients who had undergone CIED surgery (de novo implantation, system upgrade, generator change, pocket revision or lead replacement) at two heart centers in Turkey and met the study criteria were included in our study. For analysis of primary and secondary endpoints, patients were classified as non-obese (BMI < 25 kg/m2), overweight (25 ≤ BMI < 30 kg/m2), and obese (BMI ≥ 30 kg/m2). The primary endpoint was accepted as cumulative events, including the composite ofclinically significant hematoma (CSH), pericardial effusion or tamponade, pneumoth- orax, and infection related to the device system. Secondary outcomes included each component of cumulative events. Results: The rate of cumulative events, defined as primary outcome, was higher in the obese patient group, and we found a significant difference between the groups (3.0%, 4.3%, 8.9%, p = .001). CSH and pneumothorax rates were significantly higher in the obese patient group (0.3%, 0.9%, 1.9%, p = .04; 1.0%, 1.4%, 3.3%, p = .04, respectively). According to our multivariate model analysis; gender (OR:1.882, 95%CI:1.156–3.064, p = .01), hypertension (OR:4.768, 95%CI:2.470–9.204, p < .001), BMI (OR:1.069, 95%CI:1.012–1.129, p = .01) were independent predictors of cumulative events rates. Conclusions: Periprocedural complications associated with CIED (especially hematoma and pneumothorax) are more common in the group with high BMI.
The Importance of Frontal QRS-T Angle in Predicting the Effectiveness and Success of Thrombolytic Therapy in Patients With Acute Pulmonary Embolism
(Cureus, 2023) Karahan, Mehmet Zülkif; Karahan, Mehmet Zülkif
Objective: The frontal QRS-T angle (fQRS-T) is associated with myocardial ischemia and ventricular arrhythmias. On the other hand, acute pulmonary embolism (APE) is a major risk factor for cardiac adverse events. This research aimed to determine whether the fQRS-T, a marker of ventricular heterogeneity, can be used to predict successful thrombolytic therapy in patients with APE. Methods: This was a retrospective observational study. Patients diagnosed with APE and hospitalized in the intensive care unit between 2020 and 2022 were included in the research. A total of 136 individuals with APEs were enrolled in this research. The patients were divided into two groups: thrombolytic-treated (n=64) and non-treated (moderate to severe risk, n=72). An ECG was conducted for each patient, and echocardiography was performed. Results: The mean age of the thrombolytic group was 58.2±17.6 years, with 35 females (55.1% of the group) and 29 males (44.9%). The non-thrombolytic group had a mean age of 63.1±16.2, with 41 females (56.5%) and 31 males (43.5%). Respiratory rate, heart rate, and fQRS-T were higher in the thrombolytic group, and oxygen saturation ratio and systolic and diastolic blood pressure were higher in the non-thrombolytic group (p=0.006, p<0.001, p=0.021; p<0.001, p=0.015, p<0.001, respectively). In the thrombolytic therapy group, comparing pre- and post-treatment ECG data revealed a statistically significant change in the fQRS-T value (p=0.019). Conclusion: The fQRS-T may provide important clues for the successful treatment of APEs
The effect of coronary slow flow on ventricular repolarization parameters
(ScienceDirect, 2023) Karahan, Mehmet Zülkif; Aktan, Adem; Günlü, Serhat; Kılıç, Raif; Kılıç, Raif
Introduction: Ischemia due to microvascular dysfunction may be responsible for the heterogeneity of ventricular repolarization in coronary slow flow. To our knowledge, there is no study in which QT interval, Tp-Te interval, index of cardiac-electrophysiological balance (iCEB), and frontal QRS-T angle were evaluated together in patients with CSF. In this study, we examined for the first time the relationship between all these myocardial repolarization parameters and CSF. Materials and methods: The study group included 178 patients (99 female, mean age: 50.6 ± 8.6 years) with isolated CSF without stenotic lesions and with angiographically proven normal coronary arteries. The control group included 120 patients (71 female, mean age: 49.3 ± 9.4 years) with normal coronary angiography. QRS duration, QT interval, QTc interval, Tp-Te interval, Tp-Te/QT, Tp- Te/QTc, iCEB score, and frontal QRS-T angle were calculated from 12‑lead ECGs. Results: There was no significant difference in demographic parameters between the two groups. Compared with the control group, patients with CSF had significantly longer QTmax duration, QT dispersion, Tp-Te interval, and higher iCEB score, wider frontal QRS-T angle. Conclusion: In our study, we found that many of the ventricular repolarization parameters were adversely affected in patients with CSF. Impaired parameters may be associated with the risk of malignant ventricular arrhythmias.

Browse

Browsing Kardiyoloji Anabilim Dalı Koleksiyonu by Issue Date