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  • Title: Salbutamol infusion to treat neonatal hyperkalaemia.
    Author: Greenough A, Emery EF, Brooker R, Gamsu HR.
    Journal: J Perinat Med; 1992; 20(6):437-41. PubMed ID: 1293269.
    Abstract:
    Salbutamol infusion, 4 micrograms/kg in 5 ml of water infused for 20 minutes, was given to treat hyperkalaemia (potassium level > 6.0 mmol/l) in 10 critically ill preterm infants (median gestational age 26 weeks). Seven infants had acute renal failure, two had persistent metabolic acidosis without renal failure and the remaining infant had a combination of acute renal failure and persistent metabolic acidosis. No infant developed a tachycardia or became hyperglycaemic in response to the infusion. Seven of the 10 infants ultimately died but this was at a mean of 9 days following the infusion and as a consequence of complications due to their extreme prematurity or major congenital abnormality. In response to the infusion the potassium level fell in 7 infants with acute renal failure by a median of 1.1 mmol/l (range 0.7-1.8) at one hour but in the three infants with a persistent metabolic acidosis, the potassium level continued to rise. We conclude that salbutamol infusion achieves, without side-effects, at least a temporary reduction in hyperkalaemia in preterm infants with renal failure, but not metabolic acidosis. Its effect is of sufficient duration to allow ample time for definitive therapy to be instituted and thus may be a useful alternative for infants in whom the possible hypoglycaemic side-effects of glucose and insulin should be avoided.
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