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有极显著意义 (Ｐ 0 .0 0 1) ;超过 4 8ｈ的机械通气病人有否继发呼吸机相关肺炎 (ＶＡＰ)亦有显著意义 (Ｐ 0 .0 5 )。认为ＰＩＣＵ中影响机械通气成功率的因素主要是原发病的性质和严重程度 ,并与ＭＯＤＳ及ＶＡＰ有密切关系。故应针对相关因素采取积极措施 ,以提高危重病
(P 0 .001). It was also significant that patients with mechanical ventilation more than 48 h had secondary ventilator-associated pneumonia (VAP) (P 0 .0 5). The factors that influence the success rate of PICU in PICU are mainly the nature and severity of the primary disease and are closely related to MODS and VAP. Therefore, relevant measures should be taken to increase the risk of critically ill patients