Both ball-valve partial airway obstruction from meconium particles and Valsalva-induced maneuvers during vigorous suctionmg have been incriminated in the pathophysiologic characteristics of pneumothoraces in infants with meconium aspiration syndrome.'
Both ball-valvepartial airway obstruction from meconium particles andValsalva-induced maneuvers during vigorous suctionmghave been incriminated in the pathophysiologiccharacteristics of pneumothoraces in infants with meconiumaspiration syndrome.'