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Russell's viper envenoming is associated with a high incidence of morbidity and mortality. Hypopituitarism following envenoming by Russell's vipers is a well recognized sequel in Burma and parts of India but has been reported only once in Sri Lanka. Hypokalaemia following envenoming by Russell's viper has not been described. Here we describe the association of acute pituitary insufficiency and hypokalaemia following Russell's viper envenoming in Sri Lanka and review the literature in order to understand its pathophysiological basis. A previously healthy 21-year-old man was envenomed by a Russell's viper and treated with antivenom. Ten hours after the bite, he developed persistent hypotension, which responded promptly to intravenous dexamethasone. His hormone profiles were consistent with hypocortisolism secondary to acute pituitary insufficiency. He also developed hypokalaemia. Analysis of urine and serum electrolytes suggested redistribution of potassium in to the cells rather than renal loss. Hypotension and hypoglycaemic coma are life-threatening manifestations of acute pituitary insufficiency. Therefore prompt steroid administration in these setting is life saving. Awareness of these complications among physicians would help to make prompt diagnosis and initiate immediate life saving treatment.

Original publication

DOI

10.1016/j.toxicon.2012.11.012

Type

Journal article

Journal

Toxicon

Publication Date

01/03/2013

Volume

63

Pages

78 - 82

Keywords

Acute Disease, Animals, Antivenins, Dexamethasone, Glucocorticoids, Humans, Hypokalemia, Hypopituitarism, Hypotension, Male, Russell's Viper, Snake Bites, Sri Lanka, Treatment Outcome, Viper Venoms, Young Adult