The relevance of local removal and release of norepinephrine (NE) for antecubital venous plasma NE concentration was studied in 22 healthy subjects. Arterial and venous plasma NE and forearm blood flow were measured during intra-arterial infusion of two doses of NE, intra-arterial NE infusion with two doses of sodium nitroprusside, intravenous infusion of NE with intra-arterial infusion of four...

THULESIUS, OLAV, AND PAUL C. JOHNSON. Beand postcapillary resistance in skeletal muscle. Am. J. Physiol. 2 IO(~) : 869-872. I g66.-Experiments were performed on an isolated muscle preparation of the dog’s hindlimb to determine the effect of changing arterial pressure on arterial and venous resistance of skeletal muscle. Reduction of arterial pressure caused a reduction in arterial resistance ov...

BACKGROUND AND OBJECTIVE Arterial base excess and lactate levels are key parameters in the assessment of critically ill patients. The use of venous blood gas analysis may be of clinical interest when no arterial blood is available initially. METHODS Twenty-four pigs underwent progressive normovolaemic haemodilution and subsequent progressive haemorrhage until the death of the animal. Base exc...

Background The change in venous oxygen saturation occurs earlier, and even its reduction is faster than arterial oxygen saturation. The aim of this study was to validate SvO2 and PvO2 for O2 content measurement in children hospitalized w...

To quantify the resistance and particularly the capacitance properties of the entire pulmonary vascular bed, isolated perfused lungs of nine dogs were studied. In each dog, with a fixed endotracheal pressure of 5 mm Hg, the arterial pressure-flow and pressure-volume relations were determined while venous pressure was fixed at constant values of 2, 5, and 8 mm Hg. In the same dogs, the venous pr...

Blood oxygen transport and tissue oxygenation were studied in 28 calves from the Belgian White and Blue breed (20 healthy and 8 hypoxaemic ones). Hypoxaemic calves were selected according to their high respiratory frequency and to their low partial oxygen pressure (PaO2) in the arterial blood. Venous and arterial blood samples were collected, and 2,3-diphosphoglycerate, adenosine triphosphate, ...

DOUGLAS, D. M. (1942): Strangulated Hernia a Consideration of Some Factors Affecting the Mortality, Brit. Med. J., i, 354. FRANKAU, CLAUDE, (1931): Strangulated Hernia. A Review of 1487 Cases, Brit. J. Surg., 19, 176. MAINGOT, RODNEY (1955): Abdominal Operations, 3rd Edition, 1053 London: H. K. Lewis. McEVEDY, P. G. (1950): Femoral Hernia, Ann. Roy. Coll. Surg. Engl., 7, 484 OGILVIE, H. (1959):...

BACKGROUND Haemodialysis is the primary mode of renal replacement therapy for patients of end stage renal disease. The most important determinant for effective haemodialysis is a reliable vascular access. Arterio-venous (AV) fistula is the closest to be an ideal long-term haemodialysis vascular access. The creation of fistulas or grafts is recommended before starting haemodialysis, this study w...

OBJECTIVE To assess the utility of umbilical cord venous blood gas measures for prediction of umbilical artery pH and base deficit acidemia. METHODS A retrospective cohort study was conducted of all singletons with valid paired arterial and venous cord gas samples delivered at our institution from January 2006 to March 2012. Fetal acidemia was defined primarily as cord arterial blood gas pH l...

The use of central venous oxygen saturation (SvcO2) and arterial lactate in the diagnosis of severe tissue hypoperfusion is well established, and the optimization of these parameters is currently under investigation, particularly in patients with severe sepsis/septic shock. However, the only place for deep venous puncture or the first choice for puncture is often the femoral vein. Although veno...