気管の伸長能に関する計測的研究

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タイトル別名
  • A Study on the Extensibility of the Trachea
  • キカン ノ シンチョウノウ ニ カンスル ケイソクテキ ケンキュウ

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説明

It is well known that reconstruction of the trachea following extensive resection is safely accomplished by direct anastomosis. However, the extent of resection which still permits direct end-to-end anastomosis has remained undifined.<BR>In order to study the limitation in length of tracheal resection, the author measured extensibility of the trachea by means of tracheography. The trachea was extended by about 7% of its initial length in a deep inspiration phase. Head and neck extension produced more increase of trachea of 14% on the average.<BR>The author also measured maximal extensibility of corpses' resected tracheas and found that the extensibility was definitely in inverse proportion to the age. A relationship between them as follows.<BR>Maximal Extensibility (%) =46.54-0.43×Age<BR>Assuming that limitation in length of tracheal resection was equor to maximal extensibility minus extension in respiration, limitations ard obtained.

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