title: Resonance in the mechanical response of the respiratory system to high frequency jet ventilation.
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.
authors.affiliation: Alexandra Hospital, Redditch, Worcestershire, UK.
authors.forename: B E
authors.initials: BE
authors.lastname: Smith
authors.forename: E S
authors.initials: ES
authors.lastname: Lin
mesh_terms: D000818:Animals; D001696:Biomechanical Phenomena; D006611:High-Frequency Jet Ventilation; D011659:Pulmonary Gas Exchange; D012143:Respiratory Physiological Phenomena; D013552:Swine