Journal of Anesthesia

, Volume 3, Issue 2, pp 183–187 | Cite as

Cardiopulmonary responses to the tracheobronchial suction with a fiberoptic bronchoscope during and after anesthesia

  • Toshiyuki Arai
  • Yoshio Hatano
  • Masayuki Imamura
  • Kenjiro Mori


The cardiopulmonary responses to endobronchial suction with a fiberoptic bronchoscope (FOB suction) during and after anesthesia were compared in 12 patients underwent elective surgeries. FOB suction for 1 min was performed during enflurane anesthesia (1.5% enflurane in oxygen) with muscle relaxant (anesthetized stage) and after anesthesia during spontaneously breathing of oxygen (awake stage). FOB suction lowered\(Pa_{CO_2 } \) to a greater extent in the awake than in the anesthetized stage. Mean\(Pa_{CO_2 } \) decreased from 414 to 111 torr in the awake, and from 447 to 333 in the anesthetized stage. During suction,\(Pa_{CO_2 } \) slightly increased in both stages. In response to FOB suction, heart rate increased significantly in the awake stage (P<0.001), while mean blood pressure increased significantly in the anesthetized stage (P<0.01). These findings indicate that the cardiopulmonary responses to FOB suction for 1 min during and after anesthesia differed. The procedure might be less dangerous during anesthesia.

Key words

Tracheobronchial suction fiberoptic bronchoscope cardiopulmonary response 


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Copyright information

© Japanese Society of Anesthesiologists 1989

Authors and Affiliations

  • Toshiyuki Arai
    • 2
  • Yoshio Hatano
    • 2
  • Masayuki Imamura
    • 1
  • Kenjiro Mori
    • 2
  1. 1.Department of SurgeryKyoto University HospitalKyotoJapan
  2. 2.Department of AnesthesiaKyoto University HospitalKyotoJapan

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