The studies are based upon 60 dissections of the recurrent laryngeal n. (inferior laryngeal n.). The authors describe in detail the branches destined for the intrinsic musculature of the larynx. This study is a working approach for interventions of selective laryngeal reinnervation in man. The conclusion is that, it is necessary to resect the inferior cornu of the thyroid cartilage, to reach the abductor and adductor branches of the vocal cord.
The treatment of subglottic angiomas of the infant is not clear since radiotherapy was rejected. Tracheotomy is very often indicated. Spontaneous recovery of angioma may be hoped for, but it is slow. Cryotherapy with liquid nitrogen using a 2.5 mm cryoprobe has cured, in a few stages, 3 cases. It has to be employed carefully.
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