“…To combine the superior patient satisfaction of the PCA mode o f delivery with the superior pain relief of the epidural route of delivery, Zuckerman (1989) suggested the use of epidural fentanyl or sufentanil (epidural opioicls were associated with fewer side effects than morphine) for epidural PCA. Sufentanil epidural PCA was compared with intravenous morphine PCA after cesarean section in a prospective randomized study (Grass et al, 1994).…”