血液ガス分析による気管食道内視鏡検査時の呼吸動態

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  • Respiratory Mechanismus due to Gas Solubility in Blood Observed by Endoscopy
  • ケツエキ ガス ブンセキ ニ ヨル キカン ショクドウ ナイシキョウ ケンサジ ノ コキュウ ドウタイ

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Blood gas analysis during endoscopy were made upon 36 patients with the objects of studying the respíratory mechanísmus.<BR>The results were as follows:<BR>1. After bronchoscopy, the arterial carbon dioxide tension (Paco2) decreased and PH increased, but the arterial oxygen tension (Pao2) did not almost change. It is to say that the changes of Paco2and PH are the influence of hyperventilation which were shown in many patients during endoscopy. The hyperventilation distinguished gradually about 10 minuts after the induction of endoscopy.<BR>2. There were no cases that showed hyperventilation-syndrom.<BR>3. After esophagoscopy, Pao2, Paco2and PH did not almost change.<BR>4. The patients with the larger vital capacity, the less changes on respiration.

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