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Effects of intravenously administered human atrial natriuretic peptide on elevated blood pressure during surgery
N Iwatsuki1, M Katoh, A Yasuda
1Department of Anesthesiology, Tohoku University School of Medicine, Sendai, Japan.
Abstract:
The effect of human atrial natriuretic peptide (hANP) on blood pressure (Bp) was evaluated in 11 patients who had elevated systoric Bp of over 150 mmHg during surgery. A bolus injection of 50 microg or 100 microg of hANP decreased Bp with an immediate response by 27.6 +/- 3.1 mmHg (P < 0.001) or 40.7 +/- 4.2 mmHg (P < 0.001), respectively, accompanying with tremendously increased urine output. Heart rate and PaO2 were not altered. Thus, a intravenous bolus injection of hANP is an useful therapeutic tool for the treatment of acutely elevated Bp during anesthesia.
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