1 From the Departments of Cardiology, Medicine, and Cardiovascular Surgery, The Children's Hospital, and Departments of Pediatrics and Surgery, Harvard Medical School, Boston
The hemodynamic response to high-frequency ventilation was compared with conventional ventilation in six infants following cardiac surgery. While undergoing high-frequency ventilation, adequate gas exchange was maintained in all infants. High frequency ventilation allowed a reduction of peak ventilatory pressure at the airway opening by 19%, and peak tracheal pressure by 42%. No clinically important changes in heart rate, systemic and pulmonary arterial pressure, cardiac index, or systemic and pulmonary vascular resistance were noted when high-frequency ventilation was compared with conventional ventilation.
Key Words: high-frequency ventilation hemodynamics infant ventilation
Submitted on January 21, 1983
Accepted on June 6, 1983