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Ann Thorac Surg 1999;68:339-342
© 1999 The Society of Thoracic Surgeons

Original Articles

Prevention of postoperative air leakage from lungs using a purified human collagen membrane–polyglycolic acid sheet

Toru Tsuda, MDa, Tatsuo Nakamura, MDa, Yasumichi Yamamoto, MDa, Masayoshi Teramachi, MDa, Tetsuya Kiyotani, MDa, Yong Ho Lee, MDa, Yasuhiko Shimizu, MDa

a Department of Artificial Organs, Research Center for Biomedical Engineering, Kyoto University, Kyoto, Japan

Address reprint requests to Dr Tsuda, Departments of Artificial Organs, Research Center for Biomedical Engineering, Kyoto University, 53 Kawahara-cho, Shogoin, Sakyo-ku, Kyoto 606-8507, Japan

Background. Human amnion has useful biomedical applications because it contains a large amount of human collagen fibers. We prepared purified human collagen membrane (HCM) from human amnion and used it to develop a new sheet by combining it with synthetic bioabsorbable polyglycolic acid (PGA) mesh. We evaluated its efficacy in preventing air leakage from the lungs of dogs.

Methods. In 20 dogs, HCM-PGA sheet (n = 5), sheets using fibrin glue with a separate application method (n = 5), a mixed application method (n = 5), and fibrin glue alone (n = 5), were used as dressing materials after partial lung resection.

Results. The HCM-PGA sheet using fibrin glue with a separate application method was shown to be significantly more effective by an air leakage pressure test than the other three methods. These results indicate that the HCM-PGA sheet is useful for preventing air leakage from the lung.

Conclusions. The HCM-PGA sheet is more effective than conventional fibrin glue for controlling postoperative air leakage.




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