The efficacy of intratracheal administration of vecuronium in rats, compared with intravenous and intramuscular administration.

To investigate the suitability of the intratracheal (IT) route as an alternative route for the administration of vecuronium, we compared the pharmacodynamic parameters for neuromuscular block in three groups of rats given vecuronium via the IT, IM, and IV routes. We also examined the pharmacokinetics of vecuronium in the three groups. The doses for the IT, IV, and IM groups were set at 1.

Aplasia of zygomatic arch and dislocation of temporomandibular joint capsule in Treacher-Collins syndrome: three-dimensional reconstruction of computed tomographic scans.

Seven patients with Treacher-Collins syndrome were studied. All of patients were children or teenagers. Helical CT scanner (Toshiba) was used to reconstruct zygomatic arch and temporomandibular joint capsule on lateral aspect of temporal bone in five patients of microtia and atresia of both ears and two patients of narrow ear canals of both ears without microtia.