Anesthesia for laryngomicroscopy and removal of tracheal foreign bodies in children using a special J tube
Taniguchi, K.; Miyamoto, M.; Ikebe, H.; Oda, S.; Honda, N.
Masui. Japanese Journal of Anesthesiology 36(4): 613-617
1987
ISSN/ISBN: 0021-4892 PMID: 3613069 Document Number: 304400
Anesthesia for laryngomicrosurgery and removal of the foreign bodies in the trachea has special prolems, because anesthesiologists and otolaryngologists must share the small airway during the surgical procedure. We devised a J-shaped polyethylene endotracheal tube (9G, 11G, 14G), and, used this J-tube clinically for laryngomicrosurgery (2 children) and removal of tracheal foreign bodies (6 children). These patients were intubated with the J-tubes as using an ordinary endotracheal tube and ventilated with high frequency jet ventilation (frequency 100 times/minutes, driving pressure 5 .apprx. 10 psi, and inspiration rate 50%). FIO2 was 0.3 during laryngonmicrosurgery and between 0.5 and 1.0 during removal of tracheal foreign bodies. During these surgical procedures, blood gas analysis showed no remarkable changes. That is, during laryngomicrosurgery, PaO2 levels were between 160 and 200 torr and PaCO2 levels were between 26 and 32 torr and during removal of tracheal foreign bodies, PaO2 levels were between 100 and 400 torr and PaCO2 levels were between 20 and 41 torr. These results suggest that this J-shaped endotracheal tube is safe and useful for these surgical procedures.