Table 3 Complications encountered from long-term mask ventilation in congenital central hypoventilation syndrome (total number of patients  =  15)
ComplicationNo ofpatientsComments
Redness/marking of the skin12One child developed small scar on the bridge of the nose
Orthodontic problems6In one child, changing to nasal cushions prevented further progression
In five children, no major problems, but under regular orthodontic review
Abdominal distension with wind1
Bad breath1