ISSN 1016-5169 | E-ISSN 1308-4488
Archives of the Turkish Society of Cardiology - Turk Kardiyol Dern Ars: 48 (4)
Volume: 48  Issue: 4 - June 2020
EDITORIAL COMMENT
1. The long-term safety and efficacy of fibrates in patients with hypertriglyceridemia: Real-life data from a lipid clinic cohort
Alberto Zambon
PMID: 32519990  doi: 10.5543/tkda.2020.99382  Pages 357 - 358
Abstract | English Full Text

ORIGINAL ARTICLE
2. Cumulative non-HDL-cholesterol burden in patients with hypertriglyceridemia receiving long-term fibrate therapy: Real life data from a lipid clinic cohort
Meral Kayıkçıoğlu, Shafa Shahbazova, Firdovsi İbrahimov, Levent Hürkan Can
PMID: 32519982  doi: 10.5543/tkda.2019.25169  Pages 359 - 367
Objective: Though epidemiological data suggest that an elevated triglyceride (TG) level may be a risk factor for coronary artery disease (CAD), there is still insufficient clinical evidence. This study was designed to evaluate the real-life efficacy and side effects of fibrate treatment for hypertriglyceridemia seen in a lipid clinic, as well as cardiovascular and diabetic outcomes.
Methods: This retrospective study evaluated patients who were followed-up for a diagnosis of hypertriglyceridemia at the lipid outpatient clinic of the Ege University Cardiology Department between 1997 and 2018. Data of demographic and clinical characteristics were obtained from hospital records. All patients (n=240) with at least 1 year of follow-up were included in the analysis. During follow-up, patients were treated with fenofibrate, and less frequently, gemfibrozile (14 patients), at different doses according to the TG level and disease severity.
Results: Of the study population, 23% had CAD, 21% were diabetic, and 52% were obese. On admission, 20% were using fibrates and 17% were on statins. The mean admission lipid levels were TG: 281±194 mg/dL, low-density lipoprotein cholesterol: 115±37 mg/dL, high-density lipoprotein (HDL) cholesterol: 43±13 mg/dL, and non-HDL cholesterol: 166±42 mg/dL. The mean length of follow-up was 5.3±4.7 years (range: 1–16 years). A total of 8 (4.3%) patients had adverse effects during follow-up (1 on statin combination and 7 on fibrates alone). The side effects observed were an elevation of liver enzymes in 3, myalgia in 2, insomnia in 1, malaise in 1, and a skin rash in 1 patient. No rhabdomyolysis or myopathy was seen. During follow-up, diabetes developed in 14 and cardiovascular disease (CVD) in 14 patients. The cumulative non-HDL cholesterol level was significantly high in patients who developed diabetes or CVD. Receiver operating curve analysis indicated that a cumulative non-HDL cholesterol value of 1016 mg/dL was predictive of the development of diabetes mellitus or CVD with 85% sensitivity and 70% specificity.
Conclusion: In real life, long-term fibrate use is effective and safe. The cumulative non-HDL cholesterol burden can be used to assess the efficacy of treatment as a simple and easily calculated method. Large studies are needed to further clarify the value of this parameter in predicting the development of both diabetes and CVD.

3. Analysis of thrombophilic gene mutations in coronary artery ectasia
Zafer Yalım, Serap Tutgun Onrat, Sadık Volkan Emren, İbrahim Etem Dural, Alaettin Avşar, Ersel Onrat
PMID: 32525847  doi: 10.5543/tkda.2019.99789  Pages 368 - 373
Objective: Coronary artery ectasia (CAE) is defined as localized or diffuse dilatation in the coronary artery lumen of at least 1.5 times the diameter of adjacent healthy reference segments. The etiology of CAE is still unknown, but the most likely cause is atherosclerosis. The aim of this study was to evaluate several gene polymorphisms that are thought to have an effect on the development of coronary atherosclerosis and have been shown to cause thrombophilia in CAE patients.
Methods: The factor V Leiden (G1691A), factor V H1299R, prothrombin G20210A, factor XIII V34L, beta-fibrinogen-455 G>A, plasminogen activator inhibitor (PAI)-1 4G/5G, and methylenetetrahydrofolate reductase (MTHFR) C677T, and MTHFR A1298C polymorphisms were evaluated in 66 patients with CAE and 32 individuals with normal coronary arteries.
Results: Comparison of the CAE and control groups revealed that the clinical features and the frequency of polymorphism in the thrombophilic genes were similar in both groups. However, when heterozygous and/or homozygous polymorphism was compared between groups, it was found that there was a significantly higher finding of thrombophilic gene polymorphism in the CAE group (p=0.023).
Conclusion: Thrombophilic gene polymorphism may be associated with the formation and clinical presentation of CAE.

4. Post-operative N-terminal pro-brain natriuretic peptide predicts in-hospital mortality after living donor liver transplantation
İsmail Polat Canbolat, Cansu Akdeniz, Oya Ferah, Yaman Tokat
PMID: 32519985  doi: 10.5543/tkda.2020.42637  Pages 374 - 379
Objective: The post-operative serum level of N-terminal pro-brain natriuretic peptide (NT-proBNP) has been found to be associated with post-operative cardiovascular complications and mortality in high-risk surgeries. The usefulness of the post-operative NT-proBNP level as a predictor of mortality after liver transplantation (LT) is unknown.
Methods: The records of patients at a single, tertiary university hospital who had undergone adult living donor liver transplantation (LDLT) with data of post-operative NT-proBNP level values were retrospectively analyzed for in-hospital mortality. The highest post-operative NT-proBNP level from the first 3 days after surgery was included in the study. Receiver operating characteristic curve analysis was performed to assess the best cut-off value of post-operative NT-proBNP, and Cox regression analysis was performed to investigate the effect of NT-proBNP on mortality.
Results: A total of 114 LT recipients with a mean Model for End-Stage Liver Disease score of 15.8 were included in the study. In-hospital mortality occurred in 11 (9.6%) of the patients. A history of diabetes mellitus and the post-operative NT-proBNP level were found to be associated with mortality (p=0.011 for diabetes mellitus and p<0.001 for NT-proBNP). The best cut-off value of post-operative NT-proBNP was 1009 ng/L. Cox regression analysis indicated that the NT-proBNP level was a strong predictor of in-hospital mortality (hazard ratio: 24.467, 95% confidence interval: 3.120–191.750; p=0.002).
Conclusion: The post-operative NT-proBNP serum level independently predicted in-hospital mortality in patients who underwent LDLT. Post-operative NT-proBNP-guided management of LT recipients should be pursued.

5. The “right way” to the left chamber in non-severe COPD: Echocardiographic predictors for stress-induced left ventricular diastolic dysfunction
Radostina Cherneva, Stefan Denchev, Zheyna Cherneva
PMID: 32519989  doi: 10.5543/tkda.2020.89238  Pages 380 - 391
Objective: Dyspnea is a major complaint of both chronic obstructive pulmonary disease (COPD) and heart failure with preserved ejection fraction (HFpEF). It often remains underdiagnosed in COPD patients when only echocardiography at rest is performed. The aim of this study was to evaluate the predictive value of cardiopulmonary and echocardiographic parameters at rest for the diagnosis of HFpEF in non-severe COPD patients who complain of exertional dyspnea and have no overt cardiovascular disease.
Methods: A total of 104 COPD patients underwent echocardiography before cardiopulmonary exercise testing (CPET) and 1–2 minutes after peak exercise. The patients were divided into 2 groups based on peak E/e’ measurements: patients with masked HFpEF-stress and left ventricular diastolic dysfunction (LVDD; E/e’>15), and patients without masked HFpEF (without stress LVDD). CPET and echocardiographic parameters at rest were measured and the predictive value for stress E/e’ was analyzed.
Results: Stress LVDD occurred in 67 of 104 patients (64%). These patients achieved a lower work load, lower ’VO2 consumption, lower minute ventilation, and higher ’VE/’VCO2 slope in comparison with patients without stress LVDD. None of the CPET values correlated with stress E/e’. The best independent predictors for stress LVDD were right atrium volume index (RAVI), right ventricle (RV) parasternal diameter, and RV E/A >0.75. The combination of these echocardiographic parameters predicted HFpEF with an accuracy of 91.2%.
Conclusion: There is a high prevalence of stress LVDD in non-severe COPD patients with exertional dyspnea who remain free of overt cardiovascular disease. RAVI, RV parasternal diameter, and RV E/A >0.75 were the only independent predictors of stress LVDD.

6. Prognostic nutritional index predicts mortality in infective endocarditis
Serkan Kahraman, Hicaz Zencirkıran Aguş, Ali Kemal Kalkan, Fatih Uzun, Mehmet Ertürk, Mehmet Emin Kalkan, Mustafa Yıldız
PMID: 32519983  doi: 10.5543/tkda.2020.25899  Pages 392 - 402
Objective: The prognostic nutritional index (PNI), based on serum albumin and lymphocyte concentration, is an inflammation-based nutritional score that has been shown to be a prognostic determinant in several populations. The aim of this study was to investigate the impact of PNI on mortality in patients with infective endocarditis (IE).
Methods: A total of 131 patients with IE were enrolled in this retrospective study. The patients were divided into 2 groups based on in-hospital mortality. The PNI value of the patients was evaluated, as well as baseline clinical and demographical variables.
Results: Among the study group, 29 patients died in-hospital during the median follow-up of 37 days. The PNI was found to be lower in cases of mortality (35.90±6.96; 31.09±5.88; p=0.001). ROC curve analysis also demonstrated that the PNI had a good predictive value for in-hospital mortality with a cut-off value of 35.6 (Area under the curve: 0.691; 95% confidence interval [CI]: 0.589–0.794; p=0.002). In multivariate logistic regression analysis, advanced age (Odds ratio [OR]: 1.078; 95% CI: 1.017–1.143; p=0.012), PNI (OR: 0.911; 95% CI: 0.835–0.993; p=0.034), and leaflet perforation (OR: 5.557; 95% CI: 1.357–22.765; p=0.017) were found to be independent predictors of mortality. Kaplan-Meier survival analysis revealed that long-term survival was found to be significantly decreased in patients with a lower PNI (Log rank: p=0.008).
Conclusion: The PNI result was associated with an increased in-hospital mortality rate in patients with IE. The PNI value, advanced age, and cardiac valve perforation as a complication of IE were found to be independent predictors of mortality.

7. The effect of transcatheter atrial septal defect closure on left heart function in pediatric patients
Ayşe Sülü, Derya Aydın Şahin, Osman Başpınar, Murat Sucu
PMID: 32519981  doi: 10.5543/tkda.2020.23793  Pages 403 - 409
Objective: The aim of this study was to use tissue Doppler imaging to evaluate the left atrial systolic and the left ventricular (LV) diastolic function as well as the left atrial ejection force in children who underwent transcatheter closure of a secundum atrial septal defect (ASD).
Methods: Tissue Doppler measurements of the left atrial ejection force, the mitral valve, and left atrial volume were performed before the ASD closure procedure, and on the 1st day, 10th day, and 1st and 3rd months after the procedure in 56 patients and in 28 healthy controls.
Results: There was a significant decrease in the septal and lateral a’ velocities on the first day (p<0.05). There was a statistically significant increase in the septal e’/a’ parameters at the third month compared with the initial measurements. The left atrial ejection force was lower in patients with an ASD than in the healthy group (10.69±4.94 kdyn, 12.31±4.05 kdyn, respectively), but there was no significant difference (p=0.053). The left atrial ejection force was significantly greater in the patient group 3 months after the procedure, and there was no significant difference compared with the control group.
Conclusion: Improvement in the LV diastolic and left atrial systolic functions was observed in children who underwent transcatheter closure of an ASD. There was no negative effect related to the devices used.

8. Traditional Chinese medicine practices used in COVID-19 (Sars-cov 2/Coronavirus-19) treatment in clinic and their effects on the cardiovascular system
Emine Akalın, Miraç Ekici, Zinar Alan, Elif Özbir Elevli, Aysenur Yaman Bucak, Nuerbiye Aobuliaikemu, Ali Yağız Üresin
PMID: 32519978  doi: 10.5543/tkda.2020.03374  Pages 410 - 424
Objective: The aim of this study was to evaluate the effectiveness of plants used in the formulations of traditional Chinese medicine (TCM), which were also used in clinical trials to treat patients with the novel coronavirus COVID-19, and to assess their effects on the cardiovascular system.
Methods: A literature review of PubMed, ResearchGate, ScienceDirect, the Cochrane Library, and TCM monographs was conducted and the effects of the plants on the cardiovascular system and the mechanisms of action in COVID-19 treatment were evaluated.
Results: The mechanism of action, cardiovascular effects, and possible toxicity of 10 plants frequently found in TCM formulations that were used in the clinical treatment of COVID-19 were examined.
Conclusion: TCM formulations that had been originally developed for earlier viral diseases have been used in COVID-19 treatment. Despite the effectiveness seen in laboratory and animal studies with the most commonly used plants in these formulations, the clinical studies are currently insufficient according to standard operating procedures. More clinical studies are needed to understand the safe clinical use of traditional plants.

HOW TO?
9. Which factors should be taken into account during an echocardiographic examination of patients with cardiac arrhythmias?
Yalçın Velibey
PMID: 32519988  doi: 10.5543/tkda.2020.74009  Pages 425 - 433
Abstract |Full Text PDF

CASE REPORT
10. The importance of the epinephrine provocation test for the hidden type-1 congenital long QT syndrome
Adem Atici, Ramazan Asoğlu, Hasan Ali Barman, Irfan Sahin
PMID: 32519984  doi: 10.5543/tkda.2020.40480  Pages 434 - 438
Congenital long QT syndrome (LQTS) is a genetic channelopathy associated with a high incidence of sudden cardiac death in children and young adults. QT interval prolongation is typically the primary finding on the electrocardiography (ECG) recordings, but a normal QT interval may be seen in as many as 40% of patients with LQTS due to incomplete penetrance. A normal QT interval on ECG in patients with LQTS is known as hidden LQTS. An epinephrine provocation test can help in the diagnosis of hidden LQTS. This case report describes the use of an epinephrine provocation test to diagnose hidden LQTS in 3 patients who had normal QT interval and corrected QT interval on ECG and a family history of sudden cardiac death.

11. Non-ST segment elevation myocardial infarction induced by carbon monoxide poisoning
Gamze Küçükosman, Bengü Gülhan Aydın, Hilal Ayoğlu
PMID: 32519987  doi: 10.5543/tkda.2019.60044  Pages 439 - 442
Carbon monoxide (CO) poisoning is the most common cause of poisoning-related death in the world. Cardiovascular complications of CO intoxication includes myocardial damage, left ventricular dysfunction, pulmonary edema, and arrhythmias. The carboxyhemoglobin level does not correlate with the clinical severity of CO intoxication. This case report presents a patient with acute myocardial infarction secondary to carbon monoxide poisoning who was successfully treated with coronary bypass surgery.

12. Successful leadless pacemaker implantation in a patient with profound bradycardia following transcatheter aortic valve replacement and mitral valve-in-valve procedure
Enes Elvin Gul, Yumna B Haseeb, Sohaib Haseeb, Reda Abuelatta, Osama Al Amoudi
PMID: 32519986  doi: 10.5543/tkda.2020.46635  Pages 443 - 446
Leadless pacemakers provide a potential alternative to conventional transvenous pacemakers for patients undergoing high-risk transcatheter valve replacement procedures. This is a description of a successful leadless pacemaker implantation in a 51-year-old woman who developed profound bradycardia following a transcatheter aortic valve replacement and mitral valve-in-valve procedure.

CASE IMAGE
13. Incremental value of multimodal imaging in the evaluation of complicated prosthetic valve endocarditis
Ahmet Güner, Alkım Ateşli, Hicaz Zencirkıran Aguş, Ekrem Güler, Gamze Babür Güler
PMID: 32519980  doi: 10.5543/tkda.2020.17676  Page 447
Abstract | English Full Text | Video

14. A ventricular septal defect with a continuous left-to-right shunt mimicking a ruptured sinus of Valsalva aneurysm
Ali Hosseinsabet, Khalil Forozannia
PMID: 32519979  doi: 10.5543/tkda.2020.04688  Page 448
Abstract | English Full Text | Video

OTHER ARTICLES
15. Comment on cardiology publications
Ertan Ural
Page 449
Abstract |Full Text PDF



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