期刊
NEPHROLOGY DIALYSIS TRANSPLANTATION
卷 25, 期 5, 页码 1524-1531出版社
OXFORD UNIV PRESS
DOI: 10.1093/ndt/gfp731
关键词
ADH; conivaptan; hyponatraemia; SIADH; vasopressin receptor antagonist
资金
- Astellas Pharma US Inc.
Methods. We searched our records for hospitalized patients treated with intravenous conivaptan for moderate to severe hyponatraemia due to SIADH, with a starting serum sodium < 130 mmol/L, between 2006 and 2009 (n = 18), to examine its efficacy as aquaretic, and to search for pre-treatment variables that could predict degree of response. Results. Twenty-four hours after initiation of therapy, all patients had at least a 3-mmol/L increase in serum sodium, with 66.7% (12/18) of the patients having an absolute increase >= 4 mmol/L, and a median increase in serum sodium of 7 mmol/L (range: 3-16 mmol/L). Concomitantly, urine osmolality decreased in all patients with a mean reduction of 45.9 +/- 28.8% from baseline. Lower serum sodium, lower blood urea nitrogen and higher estimated glomerular filtration rate at baseline had a significant correlation with the magnitude of the absolute increase in serum sodium 24 hours after initiation of therapy. Conclusions. We conclude that intravenous conivaptan is an effective aquaretic to treat hyponatraemia caused by SIADH, as evidenced by a simultaneous increase in serum sodium and decrease in urine osmolality. Baseline values of serum sodium, blood urea nitrogen and estimated glomerular filtration rate may help predicting the magnitude of response to therapy.
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