Intrarenal distribution of flow during perfusion.

Intrarenal flow distribution in ischemic and nonischemic dog kidneys has been studied using the 133Xe washout technique and angiography. These preliminary studies showed two different hemodynamic alterations during perfusion, vasoconstriction, and diminution of cortical flow. Vasoconstriction of the renal artery and branches noted in both groups was observed to be a reversible phenomenon and disappeared within 1 hr of perfusion.

Survival of a homologous parathyroid implant in an immunosuppressed patient.

A patient who had undergone subtotal parathyroidectomy while on chronic hæmodialysis became severely hypocalcaemic after receiving a well-functioning cadaveric renal graft. After a homologous parathyroid implant, there was a biochemical improvement in the patient, and at biopsy 6 months later the parathyroid graft was histologically normal. 21 months after the implant, serum calcium and phosphorus remain normal without calcium supplementation.