Pulmonary and Circulatory Effects of Acute Pulmonary Vascular Engorgement in Normal Subjects 1

Pulmonary vascular engorgement in a 65-year-old woman.

~ O I L . I Z , Rhode Island 02852 failure. The carotid pulses were brisk, but collapsed in midsystole. The cardiac apical impulse was hyperkinetic with a diffuse precordial systolic thrill. A third heart sound was present. There was a grade 4 of 6 harsh holosystolic murmur maximal at the left sternal border in the third interspace, but audible across the entire precordium. A grade 1 of 6 decre...

Acute circulatory effects of dopamine in patients with pulmonary hypertension.

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...

Pulmonary and circulatory effects of fibrinopeptides.

Bovine fibrinopeptide B and human fibrinopeptide A given in minute concentrations to rabbits, dogs, and lambs caused pulmonary hypertension, decreased effective pulmonary blood flow, decreased lung compliance, decreased ventilatory conductance, increased frequency and volume of ventilation, and increased differences in arterial and alveolar Pco2 and Po->. These effects appeared immediately afte...

Effect of circulatory changes on the pulmonary compliance of normal subjects and patients with mitral stenosis.

Acute effects of external negative pressure ventilation in chronic obstructive pulmonary disease compared with normal subjects.

This study compares the acute physiological effects of external negative pressure ventilation (ENPV) in normal subjects and patients with chronic obstructive pulmonary disease (COPD). The equipment consisted of an airtight jacket (Pneumosuit) and vacuum pump. Minute ventilation (Ve) was recorded using a light-emitting turbine transducer. Oxygen uptake (VO2) and carbon dioxide output (VCO2) were...