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  • Title: Autopsy findings of co-sleeping-associated sudden unexpected deaths in infancy: relationship between pathological features and asphyxial mode of death.
    Author: Weber MA, Risdon RA, Ashworth MT, Malone M, Sebire NJ.
    Journal: J Paediatr Child Health; 2012 Apr; 48(4):335-41. PubMed ID: 22017395.
    Abstract:
    AIM: Co-sleeping is associated with increased risk of sudden unexpected death in infancy (SUDI)/sudden infant death syndrome (SIDS). The aim of this study is to examine autopsy findings from a single U.K. specialist centre to determine the relationship between co-sleeping and cause of death. METHODS: Retrospective analysis of >1500 paediatric autopsies carried out by paediatric pathologists over a 10-year period. SUDI was defined as sudden unexpected death of an infant aged 7-365 days; deaths were categorised into explained SUDI (cause of death was determined) and unexplained SUDI (equivalent to SIDS). RESULTS: There were 546 SUDI; sleeping arrangements were specifically recorded in 314; of these, 174 (55%) were co-sleeping-associated deaths. Almost two thirds (59%) of unexplained SUDI were co-sleeping compared to 44% explained SUDI (95% confidence interval (CI) 1.0-27.2%, P=0.03); however, this difference remained statistically significant only for the first 5 months of life (95% CI 3.5-33.2%, P=0.01). In unexplained SUDI aged < 6 months, there were no significant differences between co-sleeping and non-co-sleeping deaths with respect to ante-mortem symptoms, intrathoracic petechiae, macroscopic lung appearances, pulmonary haemosiderin-laden macrophages, and isolation of specific bacterial pathogens; however, fresh intra-alveolar haemorrhage was reported more commonly in co-sleeping (54%) than in those that were not (38%; 95% CI 1.4-30.5%, P=0.03). CONCLUSIONS: Co-sleeping is associated with unexplained SUDI/SIDS in infants aged < 6 months, suggesting that co-sleeping is related to the pathogenesis of death in younger infants. The finding that intra-alveolar haemorrhage is more common in co-sleeping suggests that a minority of co-sleeping-associated deaths may be related to an asphyxial process.
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