objectivethis study aimed to assess brain natriuretic peptide in early diagnose of cardiac function in children with congenital heart diseases.methodologythis study was performed on children with chd and healthy. severity of heart failure modified ross classification system was used for grouping patients in four classes. for all participants, height, weight and head circumference were measured....

BACKGROUND Infections by rhinovirus (RV) species A and C are the most common causes of exacerbations of asthma and a major cause of exacerbations of other acute and chronic respiratory diseases. Infections by both species are prevalent in pre-school and school-aged children and, particularly for RV-C, can cause severe symptoms and a need for hospitalization. While associations between RV infect...

The congruence coefficient was first introduced by Burt (1948) under the name of unadjusted correlation as a measure of the similarity of two factorial configurations. The name congruence coefficient was later tailored by Tucker (1951, see also Harman, 1976). The congruence coefficient is also sometimes called a monotonicity coefficient (Borg & Groenen, 1997, p. 203). The congruence coefficient...

OBJECTIVES We sought to determine whether right ventricular (RV) perfusion imaging with technetium99m (Tc-99m) sestamibi or tetrofosmin single-photon emission computed tomography has diagnostic benefit for RV-originated ventricular tachyarrhythmias (RVT). BACKGROUND Identification of RV abnormalities is clinically important to establish RVT etiology. METHODS Forty-seven patients with RVT (23 wi...

We evaluated the pathophysiologic correlates of right ventricular (RV) thallium-201 (9°1Tl) visualization in three canine models: (1) acute RV pressure overload (RVPO) induced by acute constriction of the pulmonary artery; (2) acute RV volume overload (RVVO) induced by acute left-to-right atrial shunt; and (3) RV hypertrophy (RVH) induced by chronic constriction of the pulmonary artery. Thalliu...

OBJECTIVE Follow-up after tetralogy of Fallot (ToF) repair is directed to detect timely right ventricular (RV) dysfunction by following pulmonary regurgitation and global RV size, with little attention for the effective contribution of regional RV dysfunction. This study investigates the contribution of regional RV dysfunction on exercise capacity after ToF repair. METHODS Forty-two patients ...

Levosimendan is an inotropic and vasodilator drug, which is known to improve cardiac function in animal models of right ventricular (RV) failure. The effects of levosimendan on oxygen consumption and myocardial efficiency in the failing RV is unknown. We investigated the effects of levosimendan on RV function, myocardial oxygen consumption, myocardial external efficiency (MEE), and myocardial m...