[4] In 1931, Aburel was the first to describe blocking the lumbar plexus during early labor, followed by a caudal epidural injection for the expulsion phase.

[5][6] In his work, which he presented at a meeting in Paris,[7] he described using a continuous epidural catheter for pain relief during childbirth.

His technique was to administer a sacral epidural anesthetic of dibucaine with adrenaline in the first stage of labor; if additional medication was needed, it would be administered through a needle catheter placed into the caudal canal during the second stage of labor or into the lumbar aortic plexus during the first.

[2] In the late 1950s, Aburel was investigated by the Securitate for the scientific contacts he had in the West and for some of his past associations.

[2] In 1968 he was elected a foreign corresponding member of the Académie Nationale de Médecine and in 1973 he was awarded the Ordre des Palmes académiques by the French Republic.