摘要目的 研究肺泡表面活性物质(pulmonary surfactant,PS)对新生儿急性肺损伤、急性呼吸窘迫综合征氧合功能的影响.方法 纳入符合急性肺损伤、急性呼吸窘迫综合征诊断标准的新生儿98例,分为PS治疗组30例及常规治疗组68例,PS治疗组经气管插管注入PS 70 ～ 100 mg/kg,其余治疗同常规治疗组.结果 两组新生儿的性别、胎龄、出生体重、肺损伤程度差异无统计学意义;PS治疗组在急性肺损伤、急性呼吸窘迫综合征治疗后6h、12h、24 h、48 h的PaO3/FiO2、呼吸机有效指数均高于常规治疗组,而氧合指数、呼吸指数均低于常规治疗组,差异有统计学意义(P＜0.05);PS治疗组在急性肺损伤、急性呼吸窘迫综合征治疗后机械通气时间[(66±13)h、(82 ±26)h]和用氧时间[(86±13)h、(103±25)h)]均较常规治疗组[(80 ±18)h、(101 ±36)h和(104±16)h、(125 ±29) h]缩短,差异有统计学意义(P＜0.05).结论 应用PS治疗新生儿急性肺损伤、急性呼吸窘迫综合征可改善肺顺应性及氧合功能,缩短机械通气及氧疗时间,有利于改善预后.

abstractsObjective To study the oxygenation of the pulmonary surfactant replacement therapy for acute lung injury (ALI) and acute respiratory distress syndrome (ARDS) in neonates.Methods Ninetyeight eligible neonates with ALI and ARDS were divided into two groups,treatment group (n =30) and control group(n =68).Thirty infants in treatment group were injected with pulmonary surfactant 70 ～ 100 mg/kg via tracheal intubation.The rest of the treatment measures were same in treatment and control group.Results There were no differences between the two groups in gender,gestational age,birth weight and ALI/ARDS.After the pulmonary surfactant replacement therapy for ALl and ARDS,the PaO2/FiO2 and ventilator efficiency index were higher in treatment group than that in control group at 6 h,12 h,24 h,48 h;the oxygenation index and respiratory index were shorter in treatment group than that in control group at the same time.The differences at all time points were statistically significant (P ＜ 0.05).The treatment group also had a significantly shorter duration of assisted ventilation[(66 ± 13) h vs (80 ± 18) h,(82 ±26) h vs (101 ±36) h] and oxygen treatment time [(86±13) h vs (104± 16) h,(103 ±25) h vs (125 ±29) h] (P ＜0.05).Conclusion The application of the pulmonary surfactant replacement treatment in neonates with ALI and ARDS could improve rapidly in dynamic compliance and oxygenation,decrease duration of assisted ventilation and supplemental oxygen administration,thus yield better prognosis.