Impact of catheter ablation procedure on optical coherence tomography angiography findings in patients with ventricular arrhythmia.

Objective: Catheter ablation procedure may cause retinal complications associated with the risk of thromboembolism. We aimed to evaluate retina and optic disc microvascularity with optical coherence tomography angiography before and after the catheter ablation process in patients with ventricular arrhythmia.

Methods: A total of 40 eyes of 21 ventricular arrhythmia patients were included in this cross-sectional study.

Effectiveness of Device-Guided Breathing in Chronic Coronary Syndrome: A Randomized Controlled Study.

Background: Chronic coronary syndrome (CCS) is one of the most life-restricting coronary artery diseases, and symptom relief is the main goal in CCS patients who suffer from angina.

Objectives: To assess the potential benefits of device-guided breathing in CCS patients with angina in this randomized, controlled, single-blinded study.

Methods: Fifty-one patients with CCS received device-guided breathing for 7 days/8 weeks.

Subclinical Left Atrial and Ventricular Dysfunction in Acromegaly Patients: A Speckle Tracking Echocardiography Study.

Background: Although it is known that the left ventricular (LV) ejection fraction (EF) measured by echocardiography is preserved in patients with acromegaly, there is not enough information about the LV and left atrial strain (LV-GLS and LAS).

Objective: This study aimed to evaluate the left ventricular (LV) and left atrial (LA) functions with strain echocardiography (SE) in patients with acromegaly.

Methods: This study included 50 acromegaly patients with active disease and 50 healthy controls with similar age, gender, and body surface area.

V1r + DIIq is a novel and accurate criterion to predict right vs. left paraseptal accessory pathways.

Purpose: The correct estimation of accessory pathway (AP) localization from surface ECG is critical before the procedure. Our study aimed to detect the predictive value of the V1r + DIIq criterion for differentiating right- from left-sided paraseptal APs.

Methods: We retrospectively included 58 patients with (Wolff-Parkinson-White) WPW syndrome and paraseptal APs who underwent successful catheter ablation (37 male, 21 female; mean age 34.

The effect of heart rate and pulse pressure on mean arterial pressure: the combined formula for calculation of mean arterial pressure.

Background: We demonstrate a new formula to predict mean arterial pressure (MAP) using corrections of the key factors associated with the inaccuracy of the standard formula: heart rate (HR) and pulse pressure (PP).

Methods: A total of 99 patients (50 men, 49 women; mean age 52.5 ± 10.

Morning blood pressure surge is associated with the severity of stable coronary artery disease in hypertensive patients.

: We aimed to investigate the association between morning surge (MS) of blood pressure (BP) and SYNTAX score (SS) which gives information regarding the complexity and extent of coronary artery disease (CAD) in hypertensive patients. : We included 187 hypertensive patients (134 males, 53 females; mean age: 62.5 ± 10.

Increased Rates of Coronary Artery Calcium Score in Patients with Non - Functioning Adrenal Incidentaloma.

Aim: We evaluated cardiovascular (CV) risk stratification for nonfunctioning adrenal incidentalomas (NFAIs) via the coronary-artery-calcium (CAC) score.

Materials And Methods: The participants were patients with NFAI (n = 55). They were compared to patients with chest pain, a low-intermediate Framingham-risk score, and a non-diagnostic treadmill- exercise test, which served as the control group (n = 49).

Effect of cryoballoon ablation parameters on recurrence in patients with paroxysmal atrial fibrillation.

Objective: The aim of this research was to investigate the relationship between atrial fibrillation (AF) recurrence and second generation cryoballoon ablation (CBA) procedural parameters in patients with non-valvular paroxysmal AF (PAF).

Methods: A total of 131 patients with a PAF diagnosis who underwent second-generation CBA (59 male; mean age: 55.2±10.

Silent atrial fibrillation is associated with P-wave duration index in patients with cardiac resynchronisation therapy.

Introduction: Atrial fibrillation (AF) attacks can be silent, symptomatic, or emerge with its complications in pacemaker-implanted patient groups. P-wave duration index (PWDI), a novel parameter, is calculated by dividing the P-wave duration (PWD) by the PR interval. This study aimed to investigate the relation between PWDI and silent AF development in cardiac resynchronisation therapy defibrillator (CRT-D)-applied patients.

Decreased left atrial global longitudinal strain predicts the risk of atrial fibrillation recurrence after cryoablation in paroxysmal atrial fibrillation.

Purpose: We aimed to investigate the association of atrial fibrillation (AF) recurrence with left atrial (LA) strain in nonvalvular paroxysmal AF patients after cryoablation.

Methods: We included 190 patients who underwent successful cryoablation due to paroxysmal AF. In addition to classical echocardiographic data, LA apical 2-chamber (A2C) strain, LA apical 4-chamber (A4C) strain, and LA global longitudinal strain (LA-GLS) values were calculated by speckle tracking echocardiography.

The Possible Effects of Dapagliflozin on 12-derived Electrocardiogram in Patients with Type 2 Diabetes Mellitus.

Background: Dapagliflozin, sodium glucose cotransporter 2 inhibitor, has potential side effects on electrolyte imbalance as it has diuretic effects which include decreasing glucose reabsorption, increasing glucosuria and natriuresis. We aimed to determine the possible effects of dapagliflozin on electrocardiogram (ECG) in patients with type 2 DM.

Material And Methods: This retrospective study consisted of 49 patients (25 female, 24 male).

A new criterion to differentiate atrioventricular nodal reentrant tachycardia from atrioventricular reciprocating tachycardia: Combined AVR criterion.

Aim: A combined aVR criterion is described as the presence of a pseudo r' wave in aVR during tachycardia in patients without r' wave in aVR in sinus rhythm and/or a ≥50% increase in r' wave amplitude compared to sinus rhythm in patients with r' wave in the basal aVR lead. We aimed to investigate the use of combined aVR criterion in differential diagnosis of atrioventricular nodal reentrant tachycardia (AVNRT) and atrioventricular reciprocating tachycardia (AVRT).

Methods: In this prospective study, 480 patients with inducible narrow QRS supraventricular tachycardia (SVT) were included.

Fibrosis Marker Soluble ST2 Predicts Atrial Fibrillation Recurrence after Cryoballoon Catheter Ablation of Nonvalvular Paroxysmal Atrial Fibrillation.

Background And Objectives: We aimed to investigate the relationship between the recurrence of atrial fibrillation (AF) and fibrosis marker soluble ST2 (sST2) in patients with nonvalvular paroxysmal AF (PAF).

Methods: We prospectively included 100 consecutive patients with PAF diagnosis and scheduled for cryoballoon catheter ablation for AF (47 males, 53 females; mean age 55.1±10.

Delta wave notching time is associated with accessory pathway localization in patients with Wolff-Parkinson-White syndrome.

Purpose: Our aim was to investigate the relation between delta wave notching time (DwNt) and accessory pathway location in patients with Wolff-Parkinson-White (WPW) syndrome.

Methods: The retrospective study included 149 WPW patients who underwent ablation therapy. DwNt was defined as the duration between the initial point of QRS and the notching in the delta wave.

Prevalence of cardiac arrhythmia and risk factors in chronic kidney disease patients.

Chronic kidney disease (CKD) patients have a high risk for cardiac arrhythmia. This study aimed to investigate the prevalence of cardiac arrhythmia in CKD patients and to evaluate the relationship between arrhythmia and biochemical and echocardiographic parameters. CKD patients between 18 and 80 years of age were enrolled from the nephrology outpatient clinic.

The relationship between low thiol levels and major adverse cardiovascular events after primary percutaneous coronary intervention in patients with STEMI.

Objective: The aim of this study was to investigate whether low thiol levels are associated with peri-procedural factors during primary percutaneous coronary intervention (pPCI) upon admission with ST-segment elevation myocardial infarction (STEMI), and the prognostic value at 6-month follow-up.

Methods: A total of 241 consecutive acute STEMI patients who underwent pPCI and a control group of 67 individuals with a normal coronary angiography were enrolled in the study.

Results: While age, contrast-induced nephropathy, N-terminal prohormone of brain natriuretic peptide (NT-proBNP), stent length, and creatinine were related to native thiol, NT-proBNP, contrast-induced nephropathy, and creatinine were related to total thiol.

Subclinical atrial fibrillation frequency and associated parameters in patients with cardiac resynchronization therapy.

Aim: The presence of subclinical atrial fibrillation (SCAF) is relevant to issues such as the risk of stroke and the necessity of anticoagulant use in patients with cardiac resynchronization therapy (CRT). Our study aimed to investigate SCAF frequency and associated parameters in patients with CRT.

Methods: One hundred ninety-one patients with CRT (77 females, 114 males, mean age 65.

Morning blood pressure surge is associated independently with orthostatic hypotension in hypertensive patients under treatment.

Objective: Morning blood pressure surge (MBPS) and orthostatic hypotension (OH) play a role in the occurrence of cardiovascular events. We aimed to investigate the association between MBPS and OH in hypertensive patients under treatment.

Patients And Methods: We prospectively included 297 patients (mean age: 53.

Thiol/disulphide homeostasis in thoracic aortic aneurysm and acute aortic syndrome.

Aim: The aim of this study was to evaluate whether ranging values of thiol and disulphide herald a dilatation or impending acute aortic syndrome at thoracic aorta. Results/methodology: Study population consisted of patients with aortic aneurysm (n = 58), with acute aortic syndrome (n = 32) and without aortic aneurysm (control group; n = 61). A spectrophotometric method was used to determine thiol and disulphide.

S-R difference in V1-V2 is a novel criterion for differentiating the left from right ventricular outflow tract arrhythmias.

Aim: The correct estimation of the VA origin as RVOT or LVOT results in reduced ablation duration reduced radiation exposure and decreased number of vascular access. In our study, we aimed to detect the predictive value of S-R difference in V1-V2 for differentiating the left from right ventricular outflow tract arrhythmias.

Methods: We included 123 patients with symptomatic frequent premature ventricular outflow tract contractions who underwent successful catheter ablation (70 male, 53 female; mean age 46.

Association of P wave duration index with atrial fibrillation recurrence after cryoballoon catheter ablation.

Aim: We aimed to investigate the relationship between the recurrence of AF and P wave duration index (PWDI) in patients with nonvalvular PAF.

Methods: We included 114 patients who underwent cryoballoon catheter ablation with the diagnosis of paroxysmal atrial fibrillation (PAF) (55 male, 59 female; mean age 55.5±10,9years).

Evaluation of the relationship between renal resistive index and extent and complexity of coronary artery disease in patients with acute coronary syndrome.

Background: Despite advances in cardiovascular medicine, acute coronary syndrome (ACS) is still a major cause of morbidity and mortality worldwide. Synergy between percutaneous coronary intervention with TAXUS™ and Cardiac Surgery (SYNTAX) score is used to determine the extent and complexity of coronary artery disease (CAD). Renal resistive index (RRI), a renal Doppler ultrasound parameter, is used to detect renal haemodynamics.

Coronary sinus lead delay index for optimization of coronary sinus lead placement.

Aim: Optimization of coronary sinus (CS) lead position to the latest activated left ventricular (LV) area is important to increase cardiac resynchronization therapy (CRT) response. We aimed to detect the relationship between coronary sinus lead delay index (CSDI) and echocardiographic, electrocardiographic response to CRT treatment.

Methods: We prospectively included 137 consecutive patients with heart failure (HF) diagnosis, QRS ≥ 120 ms, left bundle branch block (LBBB), New York Heart Association score (NYHA) II-IV, LV ejection fraction (LVEF) <35% and scheduled for CRT (84 male, 53 female; mean age 65.

A new use for maximum deflection index: Detection of intraventricular dyssynchrony.

Aim: CRT has been shown to be very beneficial for patients with reduced LVEF, symptomatic HF and increased QRS width. But many patients do not benefit from CRT. Maximum deflection index (MDI) is a quantitive measure of the rapidity of depolarization of the myocardium.