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KMID : 0381219850170030194
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Journal of RIMSK
1985 Volume.17 No. 3 p.194 ~ p.201
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High-Frequency Ventilation
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Abstract
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High frequency ventilation (HFV) was theoretically based by Handerson and rediscovered by Sjostrand & others.
Thereafter HFV has received great attention as a new and innovative respiratory care system. HFV is not determined the accurate mechanism, but adequate ventilation is achieved with a tidal volume less then anatomical dead space and very rapid respiratory rates. HFV can be distinguished from based on the rate, volumes, and systems used.
1) High frequency positive pressure ventilation.
2) High frequency jet ventilation and High frequency flow interrupter.
3) High frequency oscillatory´ ventilation.
Those systems can aid in respiratory care and anesthetic equipment because of reduced peak airway pressure, less risk of barotrauma, decrease or at least similar cardiovascular side effects, provided the surgeon with an unobstructed and motionless field, compared to conventional ventilation. There are proved and potential benefits, however, well conceived and controlled animal and clinical studies must before firm conclusions can be drawn and recommendations made regarding general clinical use.
1) optimal frequency
2) I: E ratios.
3)´ wave form, shape, transmission.
4) pressure relationships between distal and proximal airways.
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KEYWORD
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