Transport mechanisms of high frequency ventilation

High frequency ventilation (HFV) has not got a single, but several histories. Proceeding along largely independent pathways are techniques using fre:luencies of 1-5 Hz and techniques using 10-40 Hz, the former being introduced by Sjostrand in 1971, the latter by Lunkenheimer in 1972. It was nearly ten years before it was recognized that these techaiques… CONTINUE READING