Recherche d'un modèle animal du choc septique hyperdynamique: Effets hémodynamiques de l'injection de faibles doses d'endotoxine chez le chien
- 1 January 1983
- journal article
- research article
- Published by Taylor & Francis in Archives Internationales de Physiologie et de Biochimie
- Vol. 91 (4) , 261-267
- https://doi.org/10.3109/13813458309067973
Abstract
In anaesthetized dogs, low dose endotoxin perfusion (250 ng kg−1 min−1 during 20 min) resulted, after a delay of 15-40 min, in a decrease of mean arterial pressure (from 127 to 106 mm Hg), a transient increase in cardiac output (from 2.2 to 2.9 L/min), a fall of systemic vascular resistance (from 60 to 41 mm Hg L−1 min−1) and an increase in heart rate (from 109 to 156/min). This haemodynamic pattern is similar to the so called “hyperdynamic” initial phase of clinical septic shock. Résumé Chez le chien anesthésié, la perfusion de faibles doses d'endotoxine (250 ng/kg, pendant 20 min), provoque, avec une latence de 15 à 40 min, une diminution de la pression artérielle moyenne (de 127 à 106 mm Hg), une augmentation transitoire du debit cardiaque (de 2.2 à 2.9 L/min), une chute de la résistance périphérique (de 69 à 41 mm Hg L−1 min−1) et une élévation de la fréquence cardiaque (de 109 à 156/min). Cette configuration hémodynamique rappelle celle de la phase initiale du choc septique chez l'homme (choc dit «hyperdynamique»).This publication has 18 references indexed in Scilit:
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