• Jean-Christophe Rozé, Sophie Denizot, Ricardo Carbajal, Pierre-Yves Ancel, Monique Kaminski, Catherine Arnaud, Patrick Truffert, Stéphane Marret, Jaqueline Matis, Gérard Thiriez, Gilles Cambonie, Monique André, Béatrice Larroque, and Gérard Bréart.
• Department of Neonatal Medicine and Centre d'Investigation Clinique INSERM CIC004, Hôpital de Mère et l'Enfant, Boulevard Jean Monet, 44000 Nantes, France. jcroze@chu-nantes.fr
• Arch Pediatr Adolesc Med. 2008 Aug 1;162(8):728-33.

ObjectiveTo describe the long-term outcome of very preterm infants receiving prolonged sedation and/or analgesia and examine the relationship between prolonged sedation and/or analgesia and this long-term outcome.DesignA prospective population-based study (Etude EPIdémiologique sur les Petits Ages GEstationnels [EPIPAGE]). To reduce bias, the propensity score method was used.SettingNine regions of France.ParticipantsThe study population included very preterm infants of fewer than 33 weeks' gestational age, born in 1997, who received mechanical ventilation and/or surgery. Main Exposure Prolonged exposure to sedative and/or analgesic drugs in the neonatal period, defined as exposure of more than 7 days to sedative and/or opioid drugs.Main Outcome MeasurePresence of moderate or severe disability at 5 years of age.ResultsThe analysis concerns 1572 premature infants who received mechanical ventilation for whom information about exposure to prolonged sedation and/or analgesia in the neonatal period was available. A total of 115 were exposed and 1457 were not exposed. There was no significant difference between the number of patients lost to follow-up from the group of very preterm infants who were exposed to prolonged sedation and/or analgesia and the group who were not. Exposed very preterm infants had severe or moderate disability at 5 years (41/97; 42%) more often than those who were not exposed (324/1248; 26%). After adjustment for gestational age and propensity score, this association was no longer statistically significant (adjusted relative risk, 1.0; 95% confidence interval, 0.8-1.2).ConclusionProlonged sedation and/or analgesia is not associated with a poor 5-year neurological outcome after adjustment for the propensity score.

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