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  • Title: [Application of neurally adjusted ventilatory assist in preterm infants with respiratory distress syndrome].
    Author: Chen Z, Luo F, Ma XL, Lin HJ, Shi LP, Du LZ.
    Journal: Zhongguo Dang Dai Er Ke Za Zhi; 2013 Sep; 15(9):709-12. PubMed ID: 24034909.
    Abstract:
    OBJECTIVE: To observe the effects of neurally adjusted ventilatory assist (NAVA) on the patient-ventilator synchrony, gas exchange, and ventilatory parameters in preterm infants with respiratory distress syndrome (RDS) during mechanical ventilation. METHODS: Ten preterm infants with RDS received mechanical ventilation in NAVA mode for 60 minutes and in synchronized intermittent mandatory ventilation (SIMV) mode for 60 minutes, and the two modes were given in a random order. The vital signs, patient-ventilator synchrony, blood gas values, and ventilatory parameters were compared between the two ventilation modes. RESULTS: Inspiratory trigger delay was significantly shorter with NAVA than with SIMV (P<0.05). There were no significant differences in arterial pH, PaCO2, PaO2 and PaO2/FiO2 between the two modes. The spontaneous respiratory rate, peak inspiratory pressure (PIP), electrical activity of the diaphragm and work of breathing were significantly lower in NAVA than in SIMV (P<0.05). CONCLUSIONS: Compared with SIMV, NAVA appears to improve patient-ventilator synchrony, decrease PIP, and reduce diaphragmatic muscle load and work of breathing in preterm infants with RDS during mechanical ventilation.
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