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Biomedical subjects

D Brandau

Publications and source records attributed to D Brandau.

15 recordsLinked to original sources

[Immunosuppression with cyclosporin after orthoptic liver transplant in pigs].

The immunosuppressive effect of cyclosporine A (CsA) was studied in six pigs that underwent orthotopic liver transplant (OLT). The drug was administered i.v. in low doses (1.5-4 mg/Kg-1/12 h-1) and associated with wide spectrum antibiotics. The mean survival of the animals was 23.4 +/- 11.2 days. All animals had fever, jaundice and hypertrichosis, and the preoperative corporal weight remained constant. Liver abscesses by E. coli were common autopsy findings. Livers also presented biliary regeneration and cholestasis with a slight lymphocytic infiltration. OLT in pigs without immunosuppressive treatment causes and elevation in serum gamma-GTP, GOT, LDH, alkaline phosphatase and bilirubin. In the post-mortem findings, the livers did not present abscesses but evidenced intense atrophy with hepatocellular necrosis and abundant lymphocytic infiltration.

Animals↗

Osseous hydatidosis.

Nineteen patients with osseous hydatidosis were treated over a period of thirteen years. There were four deaths. Ten patients became asymptomatic. The treatment used was either curetage or resection, often repeatedly, and protracted lavage of the wound with ethacridine. Five patients received a desensitization treatment (hydatin), but the results in these cases were indeterminate as far as the action of the drug was concerned.

Adolescent↗

Washout of the pig liver with Haemaccel after hypothermic preservation.

In hepatic preservation by simple perfusion and hypothermic storage, a portal and hepatic washout before revascularization would avoid receptor hyperkaliema. In this report we study the effectiveness of this washout with Haemaccel at room temperature. Large-White pigs were used and eight livers were perfused "in situ" via the portal wein with Hartmann's solution containing 10,000 IU of heparin at 4 degrees C, and afterwards, via portal and arterial routes with C2 solution at 4 degrees C. After a cold ischemia time of less than 31/2 hours a liver washout via the portal vein and hepatic artery with Haemaccel before portal revascularization was done. The high concentrations of glucose, K+, GOT, GPT and LDH in the effluents obtained during the washout are attributed to Haemaccel hyperosmolarity. A portal and arterial hepatic washout associated with free drainage of the first 50-100 ml of portal venous blood after hepatic portal revascularization through the infrahepatic inferior vena cava (IH-IVC), prevents hyperkaliemia from occurring after a portal and arterial revascularization in the orthotopic liver transplant (OLT) in pigs.

Animals↗

Portal and arterial washout after hypothermic preservation of the pig liver: prevention of hyperkalaemia after revascularization.

In an orthotopic liver transplantation (OLT), portal revascularization may produce acidosis and hyperkalaemia due to loss of intracellular acid metabolites and K+ during hypothermic preservation. To verify the effectiveness of portal and arterial washout in preventing hypokalaemia after liver preservation, an OLT was done in 18 large-white pigs. The donor livers were perfused in situ via the portal vein with Hartmann's solution containing 1.000 IU of heparin at 4 degrees C. Afterwards, a cold Collins C2 solution was perfused either in vitro (group A) or in situ (group B). The cold ischemia time in both groups was less than 3 1/2 h. Before doing the portal revascularization of the donor livers, a washout via the portal vein and hepatic artery with saline serum was performed. The concentration of K+, glucose, GOT and LDH in effluents obtained through infrahepatic inferior vena cava were significantly lower in group B than in group A. Simple washout of the livers prior to revascularization prevented hyperkalaemia in both groups.

Animals↗