Twelve-hour cardiopulmonary preservation using donor core cooling, leukocyte depletion, and liposomal superoxide dismutase

K. Bando, S. Schueler, D. E. Cameron, P. A. DeValeria, M. Hatanaka, A. S. Casale, M. A. Zebley, G. M. Hutchins, B. A. Reitz, W. A. Baumgartner

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Abstract

Because leukocytes and oxygen radical species contribute to ischemic and reperfusion injury during organ preservation, we examined the effect of a long-acting liposomal superoxide dismutase (liposomal SOD) and mechanical filtration of leukocytes on cardiopulmonary graft function after 12 hours of static preservation. Bovine heart-lung blocks were harvested, core cooled to 15°C, stored in 4°C donor blood for 12 hours, and then orthotopically transplanted (control group, n = 6). In the leukocyte-depletion group (n = 6), a leukocyte filter was incorporated in the bypass circuits of the donor and recipient. In the SOD group (n = 6), liposomal SOD (5000 U/kg) was administered in the cardioplegic solution, in the prime of the bypass circuits of donor and recipient, and immediately before recipient heart-lung reperfusion. In the combination group (n = 6), both leukocyte depletion (LD) and liposomal SOD were used. Only four of six control animals survived more than 2 hours after weaning from bypass, whereas all LD, SOD, and LD + SOD animals survived to be studied at 6 hours. Pulmonary function was assessed at 6 hours by arterial oxygen tension on 100% inspired oxygen (pO2), pulmonary vascular resistance (PVR), and postmortem wet/dry lung weight ratios. Arterial pO2 values (mm Hg) were as follows: control, 102 ± 51; LD, 437 ± 60*; SOD, 278 ± 83; and LD + SOD, 504 ± 54* (*p < 0.05 vs controls). PVR values (dynes · sec · cm5) were as follows: control, 1975 ± 697; LD, 682 ± 131*; SOD, 607 ± 191 *; and LD + SOD 367 ± 87* (*p < 0.05 vs controls). Postmortem wet/dry lung weight ratios were as follows: control, 7.2 ± 0.3; LD, 6.3 ± 0.2; SOD, 6.3 ± 0.3; and LD + SOD, 4.7 ± 0.3* (*p < 0.05 vs controls). Donor core cooling and leukocyte depletion combined with liposomal SOD provided the best protection. With this technique, extended cardiopulmonary preservation for heart-lung transplantation may be achieved

Original languageEnglish (US)
Pages (from-to)304-309
Number of pages6
JournalJournal of Heart and Lung Transplantation
Volume10
Issue number2
StatePublished - Jan 1 1991

ASJC Scopus subject areas

  • Surgery
  • Pulmonary and Respiratory Medicine
  • Cardiology and Cardiovascular Medicine
  • Transplantation

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    Bando, K., Schueler, S., Cameron, D. E., DeValeria, P. A., Hatanaka, M., Casale, A. S., Zebley, M. A., Hutchins, G. M., Reitz, B. A., & Baumgartner, W. A. (1991). Twelve-hour cardiopulmonary preservation using donor core cooling, leukocyte depletion, and liposomal superoxide dismutase. Journal of Heart and Lung Transplantation, 10(2), 304-309.