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siadh

syndrome of inappropriate ADH secretion (SIADH)

see also:

introduction

  • SIADH is increased ADH secretion despite normal or elevated plasma volume which causes reduced renal water excretion and resulting hyponatraemia and hypo-osmolality

aetiology

central nervous system causes

drug-induced

increased secretion of ADH

increased effects of ADH

other drugs include

pulmonary causes

  • most pulmonary conditions can cause it

paraneoplastic

ectopic ADH secretion

other causes

  • exercise-induced hyponatraemia
  • giant cell arteritis
  • idiopathic

Mx

siadh.txt · Last modified: 2014/03/11 19:07 (external edit)