[Can caesarean delivery prevent cerebral palsy? Medico-legal implications of a French ecological study]

For a long time, the benefit of a caesarean delivery in the prevention of cerebral palsy (CP) has been put forward, which was based on the assumption that CP is due to asphyxia in more than 50 % of the cases. However, from register-based data, this rate has been estimated less than 4 %. The aim of this study was to evaluate whether the rate of caesarean sections for fetal indication was correlated with the prevalence rate of CP in a French county.

This was an ecological study of register-based prevalence estimates of children with CP (postnatal cases excluded) born between 1997 and 2003 in a French county compared with the rates of caesarean section for fetal distress obtained from the maternal and infant protection service of the county.

Whilst the rate of caesarean section for fetal indication increased by 44% during the period studied, the prevalence of CP remained nearly stable around 1.5 per 1000 live births. There was no correlation between caesarean section and CP prevalence (r'=-0.36, P=0.43).

The present study was in accordance with the results of a recent meta-analysis which concluded that emergency and prophylactic caesarean deliveries were not efficient in the prevention of CP. Indication of caesarean delivery for foetal heart rhythm anomaly, which is the most relevant cause for the growing rate of caesarean sections, should be justified by additional examinations in ambivalent cases, in order not to consider it as defensive medicine, which is ethically and therefore juridically blameworthy.