Population
20 patients with verified subarachnoid hemorrhage
Design
Cohort
Follow-up
14 days
Authors
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May support ANP-mediated cerebral salt wasting over SIADH in post-SAH hyponatremia; hypothesis-generating, requires prospective confirmation.
Mild hyponatremia after subarachnoid hemorrhage may be driven by cerebral salt-wasting syndrome mediated by atrial natriuretic peptide rather than SIADH.
Isotani et al. (1994) studied this question.
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