• Hajime Arima, Kazuya Sobue, Sayuki Tanaka, Tetsuro Morishima, Hiroshi Ando, and Hirotada Katsuya.
• Department of Anaesthesia, Okazaki City Hospital, Okazaki, Japan. arima@sb.starcat.ne.jp
• Paediatr Anaesth. 2003 May 1; 13 (4): 342-4.

AbstractSpinal muscular atrophy (SMA) type I is a relatively common inherited neuromuscular disease of hypotonic newborns, but is not associated with craniofacial abnormalities. There is nothing in the literature about difficult intubation in patients affected by this disease. We report a case of 34-month-old girl with SMA type I who was scheduled for emergency endoscopic laser treatment of tracheal stenosis caused by granulations. Tracheostomy was performed at 17 months of age and before this, the orotracheal tube was changed periodically without difficulty. For this laser treatment, orotracheal intubation was required. Preoperative physical examination revealed micrognathia and class II malocclusion. Opening her mouth was not difficult. Although difficult orotracheal intubation was predictable, we attempted to intubate her trachea as usual, but could not visualize the epiglottis. We decided to proceed with retrograde intubation, one of the standard techniques employed in a child with a difficult airway, via the tracheostome. A feeding nasogastric catheter was used as a guide catheter, and our strategy was successful. In this study we report a case of difficult airway in a child with SMA type I. The relationship between SMA type I with a tracheostome and difficult airway are discussed.

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