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Research ArticleCARDIOVASCULAR

Selective Renal Vasodilation and Active Renal Artery Perfusion Improve Renal Function in Dogs with Acute Heart Failure

Kotaro Suehiro, Juichiro Shimizu, Geng-Hua Yi, Anguo Gu, Jie Wang, Gad Keren and Daniel Burkhoff
Journal of Pharmacology and Experimental Therapeutics September 2001, 298 (3) 1154-1160;
Kotaro Suehiro
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Juichiro Shimizu
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Geng-Hua Yi
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Anguo Gu
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Jie Wang
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Gad Keren
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Daniel Burkhoff
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Abstract

Renal failure is common in heart failure due to renovascular constriction and hypotension. We tested whether selective pharmacological renal artery vasodilation and active renal artery perfusion (ARP) could improve renal function without adverse effects on systemic blood pressure in a canine model of acute heart failure (AHF). AHF was induced by coronary microembolization in 16 adult mongrel dogs. In five dogs, selective intrarenal (IR) papaverine (1, 2, and 4 mg/min) was administered into the left renal artery. In six dogs, ARP was performed in the left renal artery to normalize mean renal arterial pressure followed by administration of IR papaverine (2 mg/min). In five dogs, ARP plus intravenous furosemide was tested. Urine output (UO) and cortical renal blood flow decreased during AHF and were restored by 2 mg/min IR papaverine (UO: baseline 4.2 ± 0.6, AHF 1.6 ± 1.3, IR papaverine 5.8 ± 1.1 ml/15 min; cortical blood flow: baseline 4.3 ± 0.2, AHF 2.4 ± 0.6, IR papaverine 4.2 ± 1.2 ml/min/g) with no significant change in aortic pressure. ARP also increased urine output and cortical renal blood flow (UO: baseline 5.0 ± 1.1, AHF 0.5 ± 0.4, ARP 3.8 ± 3.1 ml/15 min; cortical blood flow: baseline 4.0 ± 0.5, AHF 2.0 ± 0.8, ARP 3.52 ± 1.1 ml/min/g). A combination of these methods in AHF further increased urine output to twice the normal baseline (10.5 ± 7.5 ml/15 min). Addition of furosemide synergistically increased UO above that achieved with ARP alone (5.5 ± 2.6 versus 40.3 ± 24.7 ml/15 min,p = 0.03). In conclusion, ARP and selective renal vasodilation may effectively promote salt and water excretion in the setting of heart failure, particularly when systemic blood pressure is low.

Footnotes

  • This work was supported by unrestricted research funds from the Cardiac Physiology Laboratory of the Divisions of Circulatory Physiology and Cardiology, Columbia University, New York, New York.

  • Abbreviations:
    AHF
    acute heart failure
    AoP
    aortic pressure
    ARP
    active renal artery perfusion
    Ccr
    creatinine clearance
    CO
    cardiac output
    IR
    intrarenal
    RAF
    renal arterial flow
    RAP
    renal arterial pressure
    UO
    urine output
    fr
    French scale
    • Received March 14, 2001.
    • Accepted May 23, 2001.
  • The American Society for Pharmacology and Experimental Therapeutics
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Journal of Pharmacology and Experimental Therapeutics: 298 (3)
Journal of Pharmacology and Experimental Therapeutics
Vol. 298, Issue 3
1 Sep 2001
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Research ArticleCARDIOVASCULAR

Selective Renal Vasodilation and Active Renal Artery Perfusion Improve Renal Function in Dogs with Acute Heart Failure

Kotaro Suehiro, Juichiro Shimizu, Geng-Hua Yi, Anguo Gu, Jie Wang, Gad Keren and Daniel Burkhoff
Journal of Pharmacology and Experimental Therapeutics September 1, 2001, 298 (3) 1154-1160;

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Research ArticleCARDIOVASCULAR

Selective Renal Vasodilation and Active Renal Artery Perfusion Improve Renal Function in Dogs with Acute Heart Failure

Kotaro Suehiro, Juichiro Shimizu, Geng-Hua Yi, Anguo Gu, Jie Wang, Gad Keren and Daniel Burkhoff
Journal of Pharmacology and Experimental Therapeutics September 1, 2001, 298 (3) 1154-1160;
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