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Usefulness of Human Atrial Natriuretic Peptide in Neurosurgical Perioperative Management Hideyuki KAMII 1 , Kiyotaka SATO 1 , Hiroaki SHIMIZU 2 , Satoru FUJIWARA 2 , Teiji TOMINAGA 3 1Department of Neuroanesthesia, Kohnan Hospital 2Department of Neurosurgery, Kohnan Hospital 3Department of Neurosurgery, Tohoku University Graduate School of Medicine Keyword: human atrial natriuretic eptide (hANP) , diuretic , urine volume , neurosurgery pp.687-692
Published Date 2008/8/10
DOI https://doi.org/10.11477/mf.1436100779
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 Purpose: Intensive hypotension is an important technique in neurosurgical perioperative management. However, it could decrease urine volume, and induce fluid retention resulting in cardiac failure. We evaluated the efficacy of human atrial natriuretic peptide (hANP) on diuresis in a hypotensive condition.

 Methods: In 245 patients undergoing neurosurgical operations under general anesthesia in our hospital, 26 patients demonstrated a urine volume less than 50ml/h at 1 hour after the skin incision, despite receiving a large volume of intravenous fluid. In these 26 patients, we administered hANP (0.05μg/kg/min) continuously, and evaluated the effect of hANP on diuresis in a hypotensive condition.

 Results: After the administration of hANP, the urine volume increased significantly (p<0.01) from 28.7 to 229.4 (ml/h, mean). The heart rate increased from 66.6 to 71.7 (bpm, mean), whereas the systolic blood pressure decreased from 110.3 to 102.2 (mmHg, mean). The electrocardiogram did not change during the administration of hANP.

 Conclusions: Despite the hypotensive condition, hANP showed a strong diuretic effect in our study. In neurosurgical perioperative management, administration of hANP can be a useful tool for a fluid balance in the patient.


Copyright © 2008, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 1882-1251 印刷版ISSN 0301-2603 医学書院

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