Syndrome of inappropriate secretion of antidiuretic hormone after subarachnoid hemorrhage

The systemic implications of aneurysmal subarachnoid hemorrhage

“…When explicit diagnostic criteria are applied, its prevalence in SAH patients is 9.3 to 20% [124,148]. CSW is a hypovolemic hyponatremic condition linked with increased diuresis and natriuresis (Table 4) [149].…”

Hyponatremia in Critically Ill Neurological Patients

“…36 Hyponatremia in SAH was initially attributed to SI-ADH. 37 However, studies demonstrating volume contraction in patients with SAH and hyponatremia subsequently challenged this notion. 16,17 The pathogenic role of CSW was further supported by a prospective study that measured plasma volume (using an isotope dilution technique) in 21 patients within the first week after SAH.…”

Hyponatremia in Neurologic Patients: Consequences and Approaches to Treatment

“…The risk of hyponatremia is increased in patients with neurologic disorders, especially those who are critically ill. 10 Hyponatremia has been reported to occur in patients with head injury, 11,12 subarachnoid hemorrhage (SAH), [13][14][15] and acute meningitis 16 and after transsphenoidal surgery for the removal of pituitary tumors. 17 In one study of severe head injury, hyponatremia (serum ͓Na ϩ ͔ Ͻ135 mEq/L) developed in 33% of 109 patients.…”