Evaluation of vascular tone in portacaval shunts comparing the index of contractility and resistance in cats
Andrés C. Inglés, Dallas J. Legare, W. Wayne Lautt – 1 November 1994 – A model of prehepatic chronic portal hypertension in cats was used to determine portacaval shunt responses to infused norepinephrine and to possible transmitter overflow into portal blood from nerves supplying the gut. Responses are compared using a new index of contractility. Four weeks after application of a slowly constricting occluder, the portal vein was completely occluded and acute experiments were carried out under pentobarbital anesthesia.