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Abstract
Following 90 minutes of renal ischemia, gravity-drained venous blood is reduced in
quantity, dilution by extravascular fluid is lessened and fluid is retained in the
kidney. Venous potassium content is elevated to 14 to 20 mEq. per liter and reflects
interstitial concentrations. Volume alterations may represent initiation of an immediate
edematous response to this form of injury. Potassium concentrations of the observed
range are sufficient to induce smooth muscle contraction and may play a role in post-ischemia
malperfusion.
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References
- Effect of potassium on small and large blood vessels of the dog forelimb.Am. J. Physiol. 1959; 197: 637
- Vascular responses to the potassium ion.Surg. Gynecol. Obstet. 1969; 129: 979
- The functional distention of the kidney.Tex. Rep. Biol. Med. 1960; 18: 566
- Nature of fluids which functionally distend the kidney.J. Exp. Med. 1958; 104: 25
Article info
Publication history
Accepted:
January 29,
1974
Footnotes
☆This work was supported in part by the John A. Hartford Foundation, Inc.
Identification
Copyright
© 1974 Published by Elsevier Inc.
