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Table 1 The demographics and anesthesia date

From: Airway management in children with hemifacial microsomia: a restropective study of 311 cases

Age(years) (n = 311)

 5–8

173(55.6%)

 9–13

102(32.8%)

 14–17

36(11.6%)

Sex (n = 136)

 Male

84(62%)

 Female

52(38%)

Side involved (n = 311)

 Left

157(50.4%)

 Right

150(48.2%)

 Bilateral

4(1.3%)

Anesthesia (n = 311)

 Endotracheal tube

307(98.7%)

 Intubation under spontaneous breathing

1(0.3%)

 Intubation with muscle relaxants

306 (99.7%)

 LMA

4(1.2%)

Mask ventilation classification (n = 311)

 I

292 (93.8%)

 II

18 (5.7%)

 III

1 (0.3%)

 IV

0 (0%)

  1. Mask ventilation classification, Class I: ventilated by mask; Class II: ventilated by mask with oral airway/adjuvant with or without muscle relaxant; Class III: difficult ventilation (inadequate, unstable, or requiring two providers) with or without muscle relaxant; Class IV: unable to mask ventilate with or without muscle relaxant