Normal pulmonary artery pressure and pulmonary hypertension assessment of newborns is rarely reported. The aim of the study is to explore dynamic changes of pulmonary arterial pressure and ductus arteriosus in human newborns from birth to 72 h of age with echocardiography.A total of 76 cases of normal newborns were prospectively detected by echocardiography after birth of 2 h, 6 h, 12 h, 24 h, ...

1. Division of Pulmonology, University Hospital Zurich, Zurich, Switzerland. E-mail: [email protected] A 22-year-old woman presented with hemoptysis and dyspnea (respiratory rate, 38 breaths/min; peripheral oxygen saturation, 81%; pro-brain natriuretic peptide, 2,073 ng/L), together with bilateral inspiratory crackles and a diastolic murmur over the apex. Imaging showed multifocal consolid...

Twenty-one patients, 11 with normal pulomonary artery pressures and 10 with pulmonary hypertension, had haemodynamic measurements performed before and during dopamine infusion while undergoing cardiac catheterization, in order to evaluate the circulatory effects of dopamine in pulmonary hypertension. In both groups on average, heart rate, pulmonary artery mean pressure, aortic mean pressure, a...

We studied the effect of chronic right ventricular pressure overload on diastolic ventricular interdependence in dogs without pericardia, instrumented to measure left ventricular pressure, right ventricular pressure, and 3 left ventricular dimensions. We studied 12 dogs before (control) and nine dogs after 6 weeks of pulmonary artery constriction producing systolic right ventricular pressure gr...

Effects of systemic hypertension on right ventricular (RV) performance have not been previously investigated. In this study, 10 normal patients were compared to 20 patients with uncomplicated, asymptomatic essential hypertension (defined as cuff diastolic blood pressure 2 100 mm Hg) after a complete hemodynamic and RV cineangiographic evaluation. The mean intra-arterial pressure in the normal g...

Pulse pressure rather than diastolic pressure is the best predictor of coronary heart disease risk in older subjects, but the converse is true in younger subjects. We hypothesized that this disparity results from an age-related difference in pressure amplification from the aorta to brachial artery. Data from 212 subjects age < 50 years and 230 subjects age > or =50 years were abstracted from a ...

Background Tracking of blood pressure from early life to adulthood and the increasing prevalence of elevated blood pressure in the pediatric age group are considered as important health issues. Rapid lifestyle change and dietary habits are considered as important determinants of this problem. This study aimed to systematically review the studies on the association of dietary habits and blood pr...