Survival of children following Nissen fundoplication

Abstract

Background: Analyses of survival after fundoplication in childhood are often restricted to 30-day mortality, or to the neurologically impaired. The objective of this study was to report actuarial survival and variables associated with mortality for all children undergoing fundoplication.

Methods: This was a prospective observational study of fundoplication surgery by one surgeon; the endpoint was survival. Using a Cox proportional hazards model, gastrostomy, neurological status, tracheostomy, congenital cardiac disease, syndromic status, presence of congenital anomaly, other chronic disease, weight z-score at time of surgery, need for revisional fundoplication, use of laparoscopic surgery, gastric drainage procedures, age and sex were assessed for their influence on survival.

Results: Two-hundred and thirty children underwent 255 fundoplications at a median age of 3·6 years. Forty-six children (20·0 per cent) died during a median follow-up of 2·8 (range 0·5-11·2) years. Statistical modelling showed gastrostomy (relative risk of death 11·04, P < 0·001), cerebral palsy (relative risk 6·58, P = 0·021) and female sex (relative risk 2·12, P = 0·015) to be associated with reduced survival. Revisional fundoplication was associated with improved survival (relative risk of death 0·37, P = 0·037). Survivors had significantly higher weight z-scores (-1·4 versus - 2·9 for those who died; P = 0·001). The 5-year survival rate after fundoplication for children with cerebral palsy and gastrostomy was 59 per cent.

Conclusion: Survival of children following fundoplication is related principally to the presence of a gastrostomy and neurological status. Estimates of children's life expectancy should take account of the poorer survival of neurologically impaired children who undergo fundoplication, presumably due to the related co-morbidities that lead to a gastrostomy.