Frequency and Intensive Care Related Risk Factors of Pneumothorax in Ventilated Neonates

Table 1

Relationship of ventilator variables and overventilation to pneumothorax.

Parameter	Cases (𝑛=10)		Controls (𝑛=20)		𝑃 value
	𝑛	%	𝑛	%
Mode of ventilation at pneumothorax event
IMV	7	70	4	20	0.007
AC	2	20	4	20
SIMV	0	0	4	20
CPAP	1	10	8	40
PIP >20 cm H2O	4	40	6	30	0.58
PaCO2 <30 mmHg in ABG	5	50	11	55	0.79

IMV: intermittent mandatory ventilation; AC: assist control; SIMV: synchronized intermittent mandatory ventilation; CPAP: continuous positive airway pressure; PIP: peak inspiratory pressure; ABG: arterial blood gas.