Oesophageal (oes) and central venous pressure (CVP) were compared as indices of transpulmonary pressure change (deltap). The mean increase of deltaPoes over deltapCVP was 2.8 cm H2O. The size and variability of the increase were similar to the expected difference between oesophageal and pleural pressure fluctuations occurring in the supine patient. Central venous pressure may be more accurate a...

Pressure monitoring systems influence the contour of the displayed wave-forms and, on occasion, can introduce significant artifact in the pressure traces. It is important to understand the technical details of invasive pressure monitoring to interpret better the information presented. Careful observation of the arterial pressure waveform can provide information about ventricular function, the a...

s of papers 31 133 Venous Blood Pressure in Broilers During Acute Inhalation of 5% Carbon Dioxide, and During Unilateral Pulmonary Artery Occlusion. R. F. Wideman, Jr.*, P. Maynard, and W. G. Bottje, . We evaluated the hypothesis that venous congestion (increased venous volume) and venous hypertension (increased venous pressure), may arise when the right ventricle must elevate the pulmonary art...

Leg venous compliance is a determinant of peripheral venous pooling during orthostatic stress such that high venous compliance could contribute to reduced orthostatic tolerance. We tested the hypotheses that 1) calf venous compliance is reduced during baroreceptor unloading, and 2) calf venous compliance is greater in women than men. Twelve men (27 +/- 2 yr) and 12 women (25 +/- 2 yr) were stud...