降低围产期死亡率,预防因胎儿缺氧及产伤所致的严重后遗症,是当前产科研究的重要课题之一。在分娩过程中,有预感的或已完全出现的胎儿出生障碍是十分常见的,且常须产钳助产或剖腹产以结束分娩,通常在出现这类问题时,临床上不太好作出解释。早在五十年代Javert等曾报道了个 Reduce perinatal mortality and prevent serious sequelae caused by fetal hypoxia and birth trauma, which is one of the important topics in current obstetric research. It is not uncommon to note that it is not uncommon to have a clinically poor explanation for the presence of a premonition or a complete prenatal impaired birth during childbirth and the frequent use of forceps or caesarean to end childbirth. As early as the fifties Javert et al