Fibreoptic bronchoscopy in sedated infants facilitated by an airway endoscopy mask.

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Abstract
Fibreoptic bronchoscopy (FB) is frequently associated with a decline in PaO2, whose degree and duration can be substantial especially in infants. The effect of a face mask, which allows the administration of 100% oxygen and continuous positive airway pressure during FB, on the incidence and severity of hypoxaemia was studied in thirty-one consecutive infants. Sedation was provided by intravenous propofol titrated to allow patient comfort. A transient fall in SpO2 <95% was recorded in 6/31 patients during endoscopy of the upper airway (lasting 1.6+/-1.1 min) and in 11/31 patients during endoscopy of the lower airways (lasting 1.4+/-1.1 min). Capillary blood gas analysis before and after endoscopy of the lower airways demonstrated an increase in the PCO2 6.4+/-1.3 to 7.3+/-1.4 kPa (49+/-10 to 56+/-11 mmHg). The risk of hypoxaemia in sedated infants breathing spontaneously is low when 100% oxygen and continuous positive airway pressure are administered during FB

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