American journal of perinatology
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Traumatic pneumothoraces in ventilated premature infants are mostly related to high applied airway pressures. We report five cases of pneumothorax after endotracheal tube suctioning that illustrate two different mechanisms by which this may occur. Following suggested preventive measures, such complications have not recurred.
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A gastric tube with esophageal balloon was designed for neonatal use. The response of the balloon was evaluated. In vitro studies involved comparisons of pressure changes (delta P) in a flask, as measured directly, or as transferred via the balloon. ⋯ The delta s measured via the balloon were frequently equal to or sometimes minimally lower than the actual pleural pressure changes. The prototype meets recommended dimensions for esophageal balloon use in the neonate and allows for accurate routine measurements for calculation of pulmonary function. The device is now available commercially.