[Cortico-renal oxygen pressures in acute venous renal obstruction]

In a pilot study experiments on animals were done to follow oxygen pressure fields on the kidney surface during different degrees of cavorenal obstruction. Acute, complete blockade of one hour duration at the side of the suprarenal vena cava (group I), of the supra- and infra-renal vena cava (group II), of the left renal vein close to the vena cava (group III) and of the left renal vein close to the kidney (group IV) show gradually increasing disturbances of corticorenal oxygen supply and its postobstructive recovery. How far these changes correlate with the intra-renal circulation has to be clarified by simultaneous measurements.