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Table 1 Patients’ characteristics

From: The management of difficult intubation in infants: a retrospective review of anesthesia record database

No. Age Sex BW (kg) ASA PS Diagnosis and complications Surgery Condition at intubation Airway device Cormack-Lehane grade Agents used for induction and intubation
1 8 d F 1.8 III hydrocephalus, TOF, cleft lip, palate Ommaya reservoir placement anesthesia laryngoscope 4 midazolam, rocuronium
2 2 m F 2.7 III   VP shunt anesthesia laryngoscope 4 sevoflurane, fentanyl, midazolam, rocuronium
3 4 m F 3.5 III   cardiac surgery sedation bronchoscope midazolam, atropine, lidocaine
4 9 d M 3.5 II vein of Galen aneurysmal dilatation embolism anesthesia laryngoscope 3 thiopental, fentanyl, rocuronium
5 20 d M 1.7 IV VSD, 18 trisomy cardiac surgery awake laryngoscope 3 atropine
6 1 m M 2.3 III PDA ligation anesthesia laryngoscope 4 sevoflurane, N2O, fentanyl, rocuronium
7 1 m M 3.5 II tongue base cyst resection of cyst anesthesia laryngoscope sevoflurane, N2O, pentazocine
8 2 m F 1.8 III HPS, 18 trisomy cleft lip, palate Ramstedt’s operation anesthesia laryngoscope 4 thiopental, sevoflurane, rocuronium
9 2 m M 2.6 III DORV, cleft lip, palate cardiac surgery anesthesia laryngoscope 4 sevoflurane, fentanyl, midazolam, rocuronium
10 2 m M 3.4 III TOF, cleft palate cardiac surgery sedation bronchoscope 4 midazolam, lidocaine
11 2 m F 5.6 II craniosynostosis cranioplasty anesthesia video laryngoscope sevoflurane, fentanyl, rocuronium
12 10 m M 6.8 II Crouzon syndrome tracheostomy anesthesia laryngoscope 3 sevoflurane, N2O, pentazocine, rocuronium
  1. ASA PS American Society of Anesthesiologists physical status, d days, DORV Double outlet right ventricle, HPS hypertrophic pyloric stenosis, m months, N 2 O nitrous oxide, PDA patent ductus arteriosus, TOF tetralogy of Fallot, VP shunt ventriculoperitoneal shunting, VSD ventricular septal defect
  2. Cases nos. 1, 2 and 3 are the same patient. –: no records or no laryngoscopy