Assessment the effect of fentanyl and dexmedetomidine as adjuvant to epidural bupivacaine in parturients undergoing normal labor

Introduction Epidural analgesia has been extensively used to provide pain relief during labor [1]. Labor pain and painful uterine contractions cause hyperventilation and high catecholamine levels, resulting in maternal and fetal hypoxemia [2]. Pain relief provides a comfort for the patients and attenuates the release of stress hormones [3]. Epidural bupivacaine