通气方式对呼吸和循环功能的影响已有较多研究和报道,持续正压通气(CPAP)及呼气末正压通气(PEEP),由于在吸气期和呼气期正压较高,往往对血液动力学产生一定干扰,近年来正压通气的这种不利影响,正引起人们的注意。此外,当正压通气时,如呼吸道有漏气会使潮气量显著减少。高频率正压通气 High Frequency posnivepressure Vetilation(简称 HFPPV)是在较低呼吸道压力下,增加通气频率,将气流 More and more studies have reported on the effects of ventilation on respiratory and circulatory function. Continuous Positive Pressure Ventilation (CPAP) and Positive End Expiratory Pressure (PEEP), due to the higher positive pressure during inspiration and expiration, Some interference with hemodynamics, positive pressure ventilation in recent years, this adverse impact is arousing people’s attention. In addition, when positive pressure ventilation, such as airway leakage will make a significant reduction in tidal volume. High frequency positive pressure ventilation High Frequency posnivepressure Vetilation (HFPPV) is in the lower respiratory pressure, increased ventilation frequency, the air flow