Simultaneous measurements of the jugular and right atrial venous pressures were made in 16 patients undergoing cardiac and vascular surgery to see whether the jugular veins were a reliable guide to central venous pressure. It was found that with the chest closed both the external and internal jugular veins on the right side provided a good guide. The vessels on the left side were less consisten...

A venous bypass technique (BP) that does not require the use of systemic anticoagulation is used routinely at our institution in all adult patients during the anhepatic phase of liver transplantation (LT). Complete cardiopulmonary profiles were obtained in a subset of 28 consecutive cases. During the anhepatic phase while on bypass, mean arterial pressure, central venous pressure, and pulmonary...

Acute head-down tilt (AHDT, -30 degrees) in humans induces a transient ventilatory augmentation for 1-2 min accompanied by a high venous return. However, the mechanisms underlying this respiratory response remain obscure because of limitations of experiments carried out in human subjects. The present study was undertaken to determine whether AHDT-induced respiratory augmentation exists in the a...

OBJECTIVE Pulmonary artery occlusion pressure and central venous pressure have been considered to be reliable measures of left and right ventricular preload in patients requiring invasive hemodynamic monitoring. Studies in recent years have questioned the correlation between these estimates of ventricular filling pressures and ventricular end-diastolic volumes/cardiac performance variables in s...

A new method has been devised for continual monitoring of intraocular pressure by radiotelemetry. The use of this instrument for monitoring intraocular pressure by a variety of ophthalmic conditions is described.

The liquor was offensive and the placental swab subsequently grew Proteus spp. and Escherichia coli. The I.U.D. was expelled with the fetus. Two hours after delivery the blood pressure fell to 70/50 mm Hg, despite the blood transfusion. She was centrally cyanosed; the pulse was rapid and feeble. The central venous pressure (C.V.P.) was plus 12 cm water and the urine output for the preceeding 12...

We have studied the effect of verapamil on the incidence of ECG changes and right ventricular pressures (RVP) in 25 male patients (aged 62 (SD 9) yr) undergoing thoracotomy in a placebo-controlled double-blind trial. Verapamil 0.01 mg kg-1 h-1 (n = 12) or saline (n = 13) i.v. was started after surgery and continued on the first day after operation with oral verapamil 80 mg or placebo, 8-hourly....

BACKGROUND Massive hemorrhage during craniofacial surgery is common and often results in hypovolemia and hypotension. We conducted this study to assess the effect of the addition of routine central venous pressure (CVP) monitoring on the incidence of intraoperative hypotension and to evaluate the relationship between CVP and hypotension in this population. METHODS Data from our prospective cr...

OBJECTIVE To investigate the relation between the degree of ST segment resolution (STR) after thrombolysis and the pressure derived collateral flow index (CFIp), determined using an intracoronary pressure measurement technique in patients with recent myocardial infarction. METHODS 33 patients were studied. TIMI grade III flow was achieved in the infarct related artery by thrombolysis. A surfa...