Usefulness of Miniature Flexible Fiberoptic Bronchoscopy in Children

¹ From the Department of Pediatrics, University of California, Irvine

A miniature flexible fiberoptic bronchoscope (FFB) (Olympus BF-N20) (2.2 mm diameter) was applied to 53 children (20 female subjects) ranging in age from 3 months to 15 years (mean, 4.19 years). Most common indications for bronchoscopy included stridor or weak cry and persistent wheezing or cough unresponsive to inhaled bronchodilators, chest physiotherapy, steroids, and antimicrobial agents. There were no complications. In 38 children (71.6 percent) it was diagnostically useful, particularly for the investigations of upper airway obstruction (66 percent). In 22 children (41.5 percent) it provided guidance for surgical interventions. The instrument was particularly useful during its application in infants with severe upper airway obstruction who otherwise would require open rigid-tube bronchoscopy in the operating room. It was of limited value when excessive bronchial secretions obstructed the view of the working field for which a bronchoscope with a built-in suction channel was needed. It is concluded that this miniature FFB is a useful diagnostic tool in infants and children particularly for obstructed upper airways but has limited applications in children with peripheral airway disease. The 2.2-mm bronchoscope may have its greatest advantage in preterm neonates and intubated infants, where the small glottic or endotracheal tube size renders the 3.5-mm bronchoscope useless.

Key Words: children • indications • miniature fiberoptic bronchoscopy • obstruction, subglottic narrowing • upper airway

Submitted on October 27, 1993
Accepted on March 15, 1994

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