Cardiovascular effects of pregnanolone emulsion: an experimental study in artificially ventilated dogs.

Abstract:

:The acute cardiovascular effects of pregnanolone emulsion, a new steroid preparation for intravenous anaesthesia, were investigated in artificially ventilated dogs. The anaesthetic was administered as repeated intravenous bolus injections, doubling the dosage with each injection. The plasma concentration of pregnanolone, and the haemodynamic, respiratory and metabolic variables were determined after each injection. Cardiac output and heart rate increased from the first bolus dose of the anaesthetic (0.5 mg/kg), which produced anaesthesia lasting 10 to 15 min. Both continued to increase after administration of 1.0, 2.0 and 4 mg/kg, whereas reductions of systemic arterial pressure and estimated myocardial contractility were observed only at the two highest dosages. A decrease in vascular resistance was calculated in the systemic circulation, whereas vascular resistance increased in the pulmonary circulation. A state of circulatory shock followed administration 8, 16 and 32 mg/kg of the anaesthetic.

authors

Høgskilde S,Wagner J,Strøm J,Sjøntoft E,Olesen HP,Bredgaard Sørensen M

doi

10.1111/j.1399-6576.1991.tb03370.x

subject

Has Abstract

pub_date

1991-10-01 00:00:00

pages

669-75

issue

7

eissn

0001-5172

issn

1399-6576

journal_volume

35

pub_type

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