Renal Tissue Oxygenation during Pulsatile and Nonpulsatile Left Heart Bypass
Data favoring pulsatile over nonpulsatile left heart bypass are conflicting. To study this problem, renal cortical and medullary tissue oxygen availability (O2a) and total renal oxygen flow was compared with total renal oxygen consumption during four hours of pulsatile and nonpulsatile bypass in dogs.
KeywordsRenal Blood Flow Hemorrhagic Shock Pulsatile Flow Spermatic Vein Internal Spermatic Vein
Unable to display preview. Download preview PDF.
- 1.Beran, A.V., Mukherjee, N.D., Taylor, W.F., Wakabayashi, A., and Connolly, J.E. Decrease in renal tissue oxygen following placement of magnetic flow probe around the renal artery. To be published.Google Scholar
- 4.Wesolowski, A.A. Role of pulse in maintenance of systemic circulation during heart-lung bypass. Trans. Amer. Soc. Artif. Intern. Organs 1: 84, 1955.Google Scholar
- 6.Clowes, G.H., Jr. Extracorporeal maintenance of circulation and respiration. Physiol. Review 40: 826, 1960.Google Scholar
- 7.Shephard, R.B. and Kirklin, J.W. Relation of pulsatile flow to oxygen consumption and other variables during cardiopulmonary bypass. J. Thorac. Cardiovasc. Surg. 58: 694, 1969.Google Scholar
- 8.Ogata, T., Ida, Y., Nonoyama, A., Takeda, J., and Sasaki, H. A comparative study of the effectiveness of the pulsatile and of nonpulsatile flow in extracorporeal circulation. Arch. Jap. Chir. 29: 69, 1960.Google Scholar
- 10.Strauss, J., Beran, A.V., Katurich, N., and Brown, C.T. Renal regional 02 consumption under “normal” and hemorrhagic shock conditions. Intern. Congr. Nephrol., 4th, Stockholm, 1969.Google Scholar
- 11.Strauss, J., Beran, A.V., Baker, R., Bovdston, K., and Reyes-Sanchez, J.L. Effect of hemorrhagic shock on renal oxygenation. Amer. J. Physiol. 221: 1545, 1971.Google Scholar