Emergency and Intensive Care
Daniel J Holden BVetMed DVA DipECVAA CertSam MRCVS
I have taken on the role of subeditor for the emergency and intensive care educational updates for the AVA website. Emergency and intensive care is a new chapter for the AVA educational updates, I hope that you enjoy them and find the material informative.
January 2009 Update
Vasopressin and shock - it was there all along
Arginine vasopressin (commonly known simply as vasopressin or antidiuretic hormone, ADH) is a nonapeptide synthesized by the magnocellular neurons located within the paraventricular and supraoptic nuclei of the hypothalamus and released, like oxytocin, from the posterior pituitary. Vasopressin differs from oxytocin by just one amino acid, but has markedly differing physiological activity.
The vasopressor effect of pituitary extract was first noted in 1895, but it was not until the 1950s that vasopressin was responsible for both vasoconstriction and antidiuresis. In recent years the vasopressor effects have been subject to a resurgence in interest, especially with reference to the therapeutic management of shock states.
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