• Matthieu Vinchon, Sabine Defoort-Dhellemmes, Nathalie Noulé, Raphaël Duhem, and Patrick Dhellemmes.
• Service de neurochirurgie pédiatrique, CHRU de Lille. m-vinchon@chru-lille.fr
• Presse Med. 2004 Oct 9; 33 (17): 1174-9.

ObjectiveTo study the epidemiology of head injury (HI) in infants, the factors favouring the occurrence of a subdural haematoma (SDH), the prevalence of retinal haemorrhages (RH) and the prognostic factors, by comparing the non-accidental (NAHI) and accidental (AHI) head injuries. RH, in particular, are of fundamental value in the diagnosis of NAHI but, in the absence of systematic studies, their sensitivity and specificity for the diagnosis of the NAHI have rarely been assessed.MethodWe prospectively collected the clinical, ophthalmologic and radiological data of HI occurring in children under 24 months old, notably by distinguishing essential macrocrania and symptomatic macrocrania of an SDH, by classifying the HI according to its severity.ResultsWe observed 88 cases over a period of 22 months. It 28 cases it was NAHI and in the 60 others, AHI. The SDH was often correlated with the presence of retinal haemorrhages and the absence of signs of cranial impact, but not with child abuse or with essential macrocrania. The RH were of great importance in the diagnosis of NAHI; however, non-severe RH was noted in 4 cases of AHI. The neurological prognosis was essentially correlated with the initial clinical severity.ConclusionAlthough only representing 33% of cases, child abuse was responsible for 2/3 of the deaths and for the totality of the severe morbidity in our series. The infants exhibiting perinatal problems represented an important group at risk of abuse, which justified their regular medical-social follow-up.

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