Objectives/Hypothesis
Mandibular distraction osteogenesis (MDO) is a safe and effective surgery to address respiratory and feeding issues due to micrognathia in patients with Robin Sequence (RS). Previous studies examining postoperative complications in neonates receiving MDO have considered 4 kg as the cut-off for low weight; however, an increasing number of MDO interventions are performed in infants <4 kg. To determine if a weight <3 kg at time of MDO is a risk factor for postoperative complications or need for subsequent tracheostomy or gastrostomy tube (G-tube).
Study Design
Retrospective chart review.
Methods
A retrospective review of all infants <6 months of age undergoing MDO at two tertiary pediatric hospitals from 2008 to 2018. Demographic data, syndromic status, weight, and age at time of surgery, length of postoperative hospital stay, and postoperative outcomes were recorded including tracheostomy placement, G-tube placement, hardware infection, reintubation, facial/marginal mandibular nerve damage, and need for revision MDO.
Results
Sixty-nine patients with RS were included. The mean age at MDO was 25 ± 20 days and mean weight was 3.32 ± 0.44 kg. There was no statistically significant correlation between weight (P = .699) or age (P = .422) and unfavorable postoperative outcomes. No patients (0%) underwent tracheostomy pre-MDO. Two patients (2.9%) required tracheostomy postsurgery; neither was <3 kg. Eight patients (11.6%) required a G-tube postoperatively.
Conclusion
Newborns <3 kg who undergo MDO experience the same rates of success and complication as larger infants, suggesting that MDO is a safe and efficacious procedure in infants less than 3 kg. Laryngoscope, 2021
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