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Resonance in the mechanical response of the respiratory system to high frequency jet ventilation
Acta Anaesthesiologica Scandinavica. Supplementum
|January 1, 1989
Abstract:
Eight normal domestic pigs (Large White breed) of body weights 17 kg to 62 kg were subjected to high frequency jet ventilation (HFJV) at frequencies of 1 to 10 Hz (60-600 breaths/min). Six animals survived the study. The gain response curves and phase shift response curves obtained for these animals indicate that respiratory system resonance can be excited at HFJV frequencies. Post-mortem examinations of the nonsurvivors' lungs suggested pulmonary barotrauma. These findings and their clinical implications are discussed.