OBJECTIVE To investigate whether QT dispersion is a reliable index of the severity of aortic stenosis and left ventricular hypertrophy in the setting of aortic stenosis. DESIGN A retrospective analysis of the results of echocardiography and electrocardiography before and after aortic valve replacement. SETTING Tertiary centre. PATIENTS 36 men (30 white and six black) with symptomatic aort...

BACKGROUND Carbon monoxide (CO) poisoning are serious health problems, and effect of reducing the blood's oxygen carrying capacity. Deaths due to CO poisoning are mostly related to myocardial injury and central nervous system pathologies. AIM The objective of this study was to determine the relationship between carbon monoxide intoxication, QT dispersion, and cardiac markers. MATERIALS AND ...

OBJECTIVE Polycystic ovary syndrome (PCOS) is a prevalent disease with many potential long-term cardiovascular risks. P-wave dispersion (Pdis) and QT dispersion (QTdis) have been shown to be noninvasive electrocardiographic predictors for development of cardiac arrhythmias. In this study we aimed to search Pdis and QTdis parameters in patients with PCOS. PATIENTS AND METHODS The study include...

(1) The dielectric properties (complex permittivity) of suspensions of chloroplast thylakoids have been determined in the range 10 Hz to 13 MHz. In common with other charged membrane vesicles, thylakoids exhibit two broad dielectric dispersions corresponding to the classical (Yand P-dispersions. (2) Heat treatment of thylakoids, to produce blebs of a greater average radius, increases, as expect...

BACKGROUND Altered cardiac repolarization and increased dispersion of repolarization have been identified as risk factors for sudden cardiac death (SCD). The prevalence of and the mechanisms contributing to altered cardiac repolarization are currently unknown in COPD. METHODS In 91 COPD patients, 32 controls matched for age, cardiovascular risk and medication, and 41 healthy subjects, measure...