Respiratory support by neurally adjusted ventilatory assist (NAVA) in severe RSV-related bronchiolitis: a case series report

Table 2 Ventilatory parameters (case 2)

	Before NAVA	Twelve hours after the start of NAVA
Ventilation mode	SIMV	NAVA
Peak inspiratory pressure (cm H₂O)	28	(15)*
PEEP (cm H₂O)	4	5
Mean pressure (cm H₂O)	12	7.5
Tidal volume (ml/kg)	6	(7)*
Minute volume (ml/kg/min)	2.0	3.1
Respiratory rate (breaths/min)	25	(30)*
FiO₂	60%	50%
SpO₂	89%	90%
Edi max	-	(10)*
NAVA level	-	1.2
pH	7.35	7.48
PCO₂, mmHg [kPa]	64 [8.5]	43 [5.7]

Data in bold are prescribed settings. Other data are measured parameters that depend both on the ventilatory settings and the respiratory status of the child.
* Data expressed in parentheses represent measurements that were very variable over time, and hence an estimate of the measured parameter is provided.
Abbreviations: SIMV, synchronized intermittent mandatory ventilation; NAVA, neurally adjusted ventilatory assist; PEEP, positive end-expiratory pressure; FiO₂, fraction of inspired oxygen; Edi, electrical activity of the diaphragm

ISSN: 1471-2431