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ATTI DELLA VIDEOCONFERENZA - 5 ottobre 1996
EMORRAGIA SUBARACNOIDEA: UN APPROCCIO PLURISPECIALISTICO - II  PROCEEDINGS OF THE VIDEOCONFERENCE - October 5, 1996
SUBARACHNOID HEMORRHAGE: A MULTIDISCIPLINARY APPROACH - II
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Minerva Anestesiologica 1998 May;64(5):235-7

Copyright © 1998 EDIZIONI MINERVA MEDICA

language: Italian

Hyponatremia following SAH

Ori C.

Università degli Studi - Padova, Istituto di Anestesiologia e Rianimazione


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Hyponatremia is a common feature after sub-arachnoid hemorrhage. Hyponatremia is complex in its origin because different neuroendocrine disturbances are involved: elements of inappropriate secretion of ADH, cerebral salt wasting, and blunted response of the renin-angiotensin-aldosterone system may occur simultaneously. Hyponatremia is accompanied by hypovolemia which implies a major risk for vasospasm and cerebral infarction. Hyponatremia itself might cause cerebral edema and intracranial hypertension. Fluid restriction is therefore contraindicated in hyponatremia following subarachnoid hemorrhage because of the negative impact on intravascular volume. On the contrary, replacement of both volume and sodium should be vigorously accomplished.

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