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Surgery Today

, Volume 36, Issue 6, pp 508–514 | Cite as

Efficacy of Continuous Low-Dose Human Atrial Natriuretic Peptide Given from the Beginning of Cardiopulmonary Bypass for Thoracic Aortic Surgery

  • Akira Sezai
  • Motomi Shiono
  • Mitsumasa Hata
  • Mitsuru Iida
  • Shinji Wakui
  • Masao Soeda
  • Nanao Negishi
  • Yukiyasu Sezai
Article

Abstract

Purpose

Cardiac surgery performed under cardiopulmonary bypass (CPB) causes abnormalities of the renin-angiotensin-aldosterone system, resulting in decreased urine output and an accumulation of water in the third space. We studied the efficacy of continuous low-dose human atrial natriuretic peptide (hANP) in patients undergoing thoracic aortic surgery.

Methods

We divided 40 patients undergoing thoracic aortic surgery into two groups: the hANP group, which received 0.02 μg/kg per minute of hANP and the non-hANP group, which did not. The hemodynamics, urine output, intensive care unit (ICU) and hospital stay, bleeding volume, homologous blood transfusion volume, furosemide dose, corrected KCl volume, and postoperative respiratory, hepatic, and renal function were compared in the two groups.

Results

The urine output during CPB and from CPB weaning to return to ICU was significantly better in the hANP group. The bleeding volume, homologous blood transfusion volume, furosemide dose, and corrected KCl volume were all significantly less in the hANP group.

Conclusions

These findings support the consensus that hANP exerts its diuretic effects to their full potential when administered continuously at low doses during thoracic aortic surgery. We found it to be effective for postoperative hemostasis and for preventing ischemic reperfusion injury.

Key words

Aortic surgery Atrial natriuretic factor Natriuretic peptide 

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Copyright information

© Springer-Verlag Tokyo 2006

Authors and Affiliations

  • Akira Sezai
    • 1
  • Motomi Shiono
    • 1
  • Mitsumasa Hata
    • 1
  • Mitsuru Iida
    • 1
  • Shinji Wakui
    • 1
  • Masao Soeda
    • 1
  • Nanao Negishi
    • 1
  • Yukiyasu Sezai
    • 1
  1. 1.Department of Cardiovascular SurgeryNihon University School of MedicineTokyoJapan

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