• R Kayaykar and R F Gray.
• Department of Otolaryngology, Royal Hallamshire Hospital, Sheffield, UK.
• J Laryngol Otol. 2001 Nov 1;115(11):894-6.

AbstractUse of rigid direct larygnoscopy (RDL) in the investigation of stridor in children is well recognized. This study presents awake flexible fibre-optic laryngoscopy (FFL) as the first line in investigation of children, under six months of age, who present with stridor without any associated respiratory distress. Using the per oral approach the procedures were conducted either in the out-patient department or in the ward. No anaesthesia, local or general, nor sedation was used. Of the 20 cases included in the study, in 16 (80 per cent) cases a working diagnosis was reached on awake FFL. Eleven had laryngomalacia, two subglottic stenosis, one glottic web and two were normal. Only four (20 per cent) cases needed RDL to reach a definitive diagnosis. There were no problems with the maintenance of the airway during the procedure. It is particularly useful in the diagnosis of functional abnormalities of the larynx, such as laryngomalacia and vocal fold palsies. Awake FFL using the per oral approach is a safe and reliable technique for reaching a working diagnosis in approximately 80 per cent of cases.

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