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    Effect of COVİD-19 pandemic and coronavac vaccine on blood pressure regulation in chronic hypertensive patients
    (2021) Şenöz, Oktay; Erseçgin, Ahmet; Demir, Yusuf; Yurdam, Ferhat Siyamend; Yapan Emren, Zeynep; Gürses, Ecem
    Objective: The most common comorbidity in patients with Covid-19 infection is hypertension. Apart from the direct effects of the virus on hypertensive patients, the pandemic period also negatively affected these patients. In addition, the effect of the newly discovered CoronaVac vaccine, which has been widely used in our country in recent months for the prevention of covid-19 infection, on blood pressure regulation is unknown. In this study, we aimed to investigate the effects of the pandemic period and the CoronaVac vaccine in patients receiving treatment for essential hypertension.Method: One hundred ninety-six patients who applied to the cardiology outpatient clinic between 4 June - 9 July 2021, were treated for essential hypertension and had at least 1 dose of CoronaVac vaccine were included in the study. In the pre-pandemic, pre-vaccine and post-vaccine period, mean home and office blood pressures of the patients were examined separately. Results: While the mean home blood pressures of the patients differed significantly between the pre-pandemic and pre-vaccine pandemic period (systolic: 125.1±12.6 vs 129.1±14.1 mmhg, p<0.001, diastolic: 75.3±9.7 vs 77.1±9.8 mmhg, p=0.004), there was no significant difference between the pre- and post-vaccination period (systolic: 129.1±14.1 vs 129.7±13.7 mmhg, p=0.229, diastolic: 77.1±9.8 vs 77.9±9.9 mmhg, p=0.091). Similarly, while office blood pressures differed significantly between the pre-pandemic and pre-vaccine pandemic period (systolic: 133.5±16.5 vs 136.1±16.4 mmhg, p=0.015, diastolic: 79.4±10.9 vs 81.2±12.1 mmhg, p=0.036), there was no significant difference between the pre- and post-vaccination period (systolic: 136.1±16.4 vs 135.6±16.9 mmhg, p=0.651, diastolic: 81.2±12.1 vs 81.1±11.2mmhg, p=0.914). Conclusion: While the Covid-19 pandemic increased the blood pressure of chronic hypertensive patients, the CoronaVac vaccine did not affect the blood pressure regulation of these patients.
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    Predictors of coronary tortuosity in patients with chronic coronary syndrome
    (Russian Heart Failure Soc, 2023) Yurdam, Ferhat Siyamend; Kis, Mehmet; Demir, Yusuf; Bakir, Eren Ozan; Akhan, Onur; Guzel, Tuncay
    Aim Coronary artery tortuosity is a common coronary angiographic finding. This tortuosity can cause myocardial ischemia even in the absence of significant coronary artery stenosis. Our aim was to compare the demographic, clinical and echocardiographic features of patients with chronic coronary syndrome (CCS) and with and without coronary artery tortuosity. Material and methods 361 patients who underwent elective coronary angiography (CAG) due to CCS were included in the study. These patients divided into two groups, those with coronary tortuosity (Group 1) and those without (Group 2). Univariable and multivariable logistic regression analysis was performed to identify predictors associated with coronary artery tortuosity. Results The mean age of the 361 CCS patients (44 % female; 56 % male) was 56.7 +/- 11.5 years. In the univariable regression analysis, age, female sex, hypertension (HT), PR interval, QTc interval, ST /T segment changes, left ventricle diastolic dysfunction (LVDD), left ventricle hypertrophia (LVH) were identified as predictors of coronary tortuosity. In the multivariable regression analysis, age (OR: 1.059; 95 %CI: 1.032-1.087, p<0.001) and hypertension (OR: 0.484; 95%CI: 0.278-0.843, p=0.01) were identified as independent predictors of coronary tortuosity. Conclusion Coronary artery tortuosity is an angiographic finding that develops as a result of adaptive mechanisms in the heart and can cause myocardial ischemia. Predictors of coronary artery tortuosity in patients with CCS were long PR and QTc intervals, ST/T segment changes, LVH, LVDD, advanced age, and female gender. Evaluation of these demographic, electrocardiographic, and echocardiographic data may help clinicans to anticipate coronary artery tortuosity in patients with CCS and to be precautious for PCI.