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Perfusion and ventilation of isolated canine lungs
  1. T. J. Otto1,
  2. M. Trenkner,
  3. A. Stopczyk,
  4. M. Gawdziński,
  5. B. Chełstowska
  1. Department of Thoracic and Cardiac Surgery, Institute of Tuberculosis, Warsaw, Poland 2

    Abstract

    In order to evaluate methods of preserving lungs for use in transplantation, experiments on 28 mongrel dogs were carried out. Two methods were tried—first, mechanical respiration of isolated lungs under deep hypothermia, with the vascular bed filled with blood; and, secondly, the perfusion of isolated lungs with the aid of a modified DeWall's apparatus. Allogenic transplantations of lungs preserved in both ways were carried out. Gasometric and histological examinations of preserved lungs, before and after transplantation, were performed. The best results were obtained with perfusion under hypothermic conditions; ventilation without perfusion resulted in failure. Lung transplantation was successful when, after being preserved, the lung remained unchanged. Major discrepancies between the macroscopic and microscopic findings in preserved lungs were observed. An original classification of the changes occurring in preserved lungs is proposed.

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    Footnotes

    • 1 Present address: Cardio-thoracic Unit, Hammersmith Hospital, London, W.12

    • 2 Instytyt Gruzlicy Warszawa, ul. Plocka 26, Poland

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