Electrophysiological validation of total atrial conduction time measurement by tissue doppler echocardiography according to age and sex in healthy adults.

Background: We sought to validate total atrial conduction time (TACT) measurement via tissue Doppler imaging (TDI) by comparing the electrophysiological study (EPS) measurements of healthy subjects, according to age and sex.

Methods: Eighty patients with normal EPS results were included. TACT was measured by EPS and TDI.

The importance of the mean platelet volume in the diagnosis of supraventricular tachycardia.

Background: The diagnosis of palpitation can be difficult in the emergency department (ED) and the waiting time for a first appointment with an arrhythmia clinic can be very long. The inflammation is sufficient to facilitate the initiation of supraventricular tachyarrhythmia (SVT). The increased mean platelet volume (MPV) is closely correlated with inflammation and to reflect inflammatory burden in different condition.

The diagnostic significance of NT-proBNP and troponin I in emergency department patients presenting with palpitations.

Objective: This prospective study investigated the diagnostic significance of the N-terminal pro-brain natriuretic (NT-proBNP) and troponin I peptides in emergency department patients presenting with palpitations.

Methods: Two groups of patients with palpitations but without documented supraventricular tachycardia were compared: a group with supraventricular tachycardia (n = 49) and a control group (n = 47). Both groups were diagnosed using electrophysiological studies during the study period.

[Anxiety levels and quality of life assessment in patients that underwent an electrophysiologic study due to unexplained palpitations].

Objectives: To compare the quality of life and anxiety levels of patients with normal and abnormal results detected during an electrophysiological study (EPS) that was performed due to undocumented palpitations.

Study Design: Patients (n=128) who underwent EPS without documented arrhythmia of unexplained palpitations were included in the study. The quality of life and anxiety levels of patients with abnormal EPS results were compared with those with normal results by using the 26-item short form of the World Health Organization quality of life scale and state-trait anxiety inventory.

Assessment of the relationship between aortic pulse wave velocity and aortic arch calcification.

Objectives: We aimed to assess arterial stiffness parameters and to investigate the relationship between these parameters and aortic calcification in patients with aortic arch calcification and without symptomatic atherosclerotic disease.

Study Design: The population of this study consisted of 41 patients with aortic arch calcification verified by chest X-ray (group I, 17 males, mean age 70±5 years) and individuals without aortic arch calcification (group II, 17 males, mean age 68±6 years). Subjects with symptomatic or known vascular disease were excluded from the study.

Cardiac autonomic function in healthy young smokers.

The present study examined the heart rate turbulence (HRT) and heart rate variability (HRV) parameters in healthy young smokers (<40 years) to assess the effects of smoking on cardiac autonomic function. The study included 75 smokers with a history of habitual smoking for at least 1 year (41 males and 34 females; mean age, 29.3 ± 7.

Predictive value of mean platelet volume in young patients with non-ST-segment elevation acute coronary syndromes: a retrospective observational study.

Objective: Platelets play an important role in both initiation and propagation of acute coronary syndromes. We sought to evaluate the predictive value of mean platelet volume (MPV) in young patients with non-ST-segment elevation acute coronary syndromes (NSTE-ACS).

Methods: This is a retrospective observational study; evaluating the MPV values of 79 NSTE-ACS patients aged under 45 years and 45 control subjects having normal coronary anatomy.

A relationship between mitral valve prolapse and subtypes of supraventricular tachycardia.

Aim: The aim of this study was to investigate the frequency of mitral valve prolapse (MVP) in patients with supraventricular tachycardia (SVT) who were diagnosed by intracardiac electrophysiological study (EPS).

Method: The study was a retrospective cohort of 378 adult patients (128 males and 250 females, 17 to 63 years) admitted with EPS. We included 267 SVT patients (58.