High-Frequency Ventilation

**Definition:** Ventilatory support system using frequencies from 60-900 cycles/min or more. Three types of systems have been distinguished on the basis of rates, volumes, and the system used. They are high frequency positive-pressure ventilation (HFPPV); HIGH-FREQUENCY JET VENTILATION; (HFJV); and high-frequency oscillation (HFO).

**Tree numbers:** - E02.041.625.508 - E02.880.820.508

**Synonyms:** - High Frequency Ventilation - Ventilation, High Frequency - Ventilation, High-Frequency