Evaluation of the timing of application of nasal continuous positive airway pressure in critically ill children / 中国小儿急救医学

ABSTRACT

Objective To study the clinical data of patients treated with nasal continuous positive airway pressure (NCPAP) in PICU,and to explore the application time and range of NCPAP in critically ill children. Methods A prospective study was conducted to collect clinical data of 192 severe patients admitted to PICU from January 2016 to June 2017 who had shortness of breath after giving oxygen through nasal cath-eter for 1 hour and then switched to NCPAP. According to using NCPAP oxygen partial pressure,children were divided into three groupsgroup A[ shortness of breath ( PaO2≥70 mmHg,1 mmHg＝0. 133 kPa) ], group B[shortness of breath combined,reduced oxygen partial pressure(50mmHg<PaO2<70 mmHg)],and group C[shortness of breath combined respiratory failure(PaO2≤50 mmHg)]. The indicators of three groups of children at different time points of NCPAP were compared. Results Among 192 children,161 (83. 85%) had respiratory diseases,14 (7. 29%) had severe hand-foot-mouth disease,10 (5. 21%) had severe sepsis, and 7 (3. 65%) had other multiple organ disorders. PaO2/FiO2gradually increased after using NCPAP for 1 hour and 4 hours,and the improvement of oxygenation in group A was most obvious,there was significant difference among the three groups (P<0. 05). There were significant differences in heart rate,shortness of breath after using NCPAP for 1 hour and 4 hours among the three groups (P<0. 05). There were 2 cases of ventilation failure in group A (failure rate 3. 57%),9 cases (11. 11%) of ventilation failure in group C,30 cases (54. 55%) of ventilation failure in group C,and there was significant difference in the failure rate of noninvasive ventilation among the three groups (χ2＝51. 684,P<0. 001). There were significant differences in the discharge rate among the three groups (P<0. 05). Conclusion NCPAP has obvious effect on the critical-ly ill children with conventional oxygen remaining respiratory abnormalities;Children with respiratory failure under nasal catheter are prone to suffer from the failure of noninvasive assisted ventilation when using NCPAP assisted ventilation,closely monitor of the disease condition is needed.