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Fatal tracheal rupture in an extremely preterm infant - Swiss Society ...

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DISCUSSION<br />

Tracheal <strong>rupture</strong> has been reported as a rare compli-<br />

cation of endo<strong>tracheal</strong> <strong>in</strong>tubation <strong>in</strong> both adults (1-6)<br />

<strong>an</strong>d children (7-16). Direct trauma dur<strong>in</strong>g <strong>in</strong>tubation<br />

may result from the endo<strong>tracheal</strong> tube, the stylet or<br />

the laryngoscope. Most cases m<strong>an</strong>ifest with subcut<strong>an</strong>eous<br />

emphysema, respiratory distress <strong>an</strong>d pneumothorax.<br />

But, as <strong>in</strong> our case, <strong>tracheal</strong> <strong>rupture</strong> with the<br />

creation of a false passage may result <strong>in</strong> the <strong>in</strong>ability<br />

to ventilate, rapid respiratory failure <strong>an</strong>d death. In<br />

their review of the literature, Doherty <strong>an</strong>d colleagues<br />

reported a very high case fatality rate of 75% <strong>in</strong> 8<br />

neonatal cases compared with only 9% <strong>in</strong> 35 adult<br />

cases (8).<br />

Typically, <strong>in</strong> adults the lacerations occur <strong>in</strong> the pos-<br />

terior membr<strong>an</strong>ous part of the trachea (3, 4, 17). In<br />

contrast, the area of <strong>tracheal</strong> <strong>in</strong>jury <strong>in</strong> neonates more<br />

commonly <strong>in</strong>volves the <strong>an</strong>terior wall <strong>in</strong> the subglottic<br />

or <strong>tracheal</strong> region (8, 10, 14, 15). Doherty <strong>an</strong>d<br />

colleagues have speculated that the neonatal trachea<br />

maybe more vulnerable due to the higher elasticity of<br />

the immature cartilage <strong>an</strong>d weakness of the <strong>in</strong>ter-cartilag<strong>in</strong>ous<br />

membr<strong>an</strong>e (8). Additional risk factors (2, 5,<br />

6, 11) that have been associated with <strong>tracheal</strong> <strong>in</strong>jury<br />

dur<strong>in</strong>g <strong>in</strong>tubation are listed <strong>in</strong> the Table.<br />

This tragic case has prompted us to review our <strong>in</strong>tu-<br />

bation procedure <strong>in</strong> <strong>preterm</strong> neonates. In our <strong>in</strong>stitu-<br />

tion, delivery of <strong>extremely</strong> <strong>preterm</strong> <strong>in</strong>f<strong>an</strong>ts are always<br />

attended by two experienced neonatologists. A naso-<br />

8

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