In 2004 a trial reported that preterm patients that received continuous morphine were not different than preterm infants that did not received morphine with respect to adverse neurologic effects.
Un ensayo clínico en el 2004 reportó que los pacientes pretérmino que recibían morfina continua no eran diferentes de los infantes pretérmino que no recibieron morfina con respecto a efectos neurológicos adversos.