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N A Kay

Publications and source records attributed to N A Kay.

5 recordsLinked to original sources

Early hormonal therapy stabilizes hemodynamics during donor procurement.

BACKGROUND: Hemodynamic instability has been implicated in the loss of otherwise transplantable organs. We examined the hypothesis that administration of hormonal therapy early during donor management would stabilize hemodynamics and increase the number of organs procured. METHODS: We retrospectively analyzed 133 consecutive donor records from a single organ procurement organization. Controls (C) received no early hormonal therapy. A steroid group (S) received methylprednisolone only and a combination hormonal therapy group (CH) received thyroxine, methylprednisolone, dextrose, and insulin at the start of donor management (t(0h)). Adrenergic support was adjusted to maintain mean arterial blood pressure (MAP) at > or =60 mm Hg. Doses of adrenergic agents were assessed at t(0h), 4 hours (t(4h)), and just prior to procurement (t(proc)). RESULTS: Baseline characteristics were similar in all groups. Dosages of adrenergic agents decreased over time in all groups. A significant decrease in adrenergic requirements was seen in the CH group compared with the C group at t(4h) and t(proc). A trend toward decreased adrenergic requirements was noted in S compared with C at t(4h) and t(proc). Slightly more total organs were procured from S and CH compared with C. CONCLUSIONS: Significantly less adrenergic support was required with early use of CH. A similar (although nonsignificant) reduction was seen with S. The benefit(s) of CH vs corticosteroids alone remains uncertain and requires further study.

Hemodynamics↗

Prevention of acute tubular necrosis after transplantation: effect of pretransplantation volume expansion.

We reviewed our experience with 100 consecutive cadaveric transplants of kidneys from satisfactory donors with respect to immediate function after transplantation. The management was the same in all patients except that 66 of them received 1,000 ml of 0.9 N saline IV preoperatively. The overall incidence of acute tubular necrosis (ATN) was 23.2%, but the incidence of ATN in the group of patients who received saline was 7.6%, as compared to 53% in those that did not (P less than .001). There was no other significant difference between the two groups. We conclude that when cadaver kidneys are harvested and preserved under satisfactory conditions, preoperative volume expansion markedly lowers the incidence of posttransplantation ATN, suggesting that the recipient volume status is an important consideration.

Acute Kidney Injury↗