Sayed Ahmed Waleed Ali, Hamdy Mostafa Ahmed
Department of Obstetrics and Gynecology, Faculty of Medicine, Suez Canal University, Ismailia, Egypt,
Int J Womens Health. 2018 Aug 21;10:459-465. doi: 10.2147/IJWH.S130879. eCollection 2018.
Umbilical cord prolapse (UCP) is an uncommon obstetric emergency that can have significant neonatal morbidity and/or mortality. It is diagnosed by seeing/palpating the prolapsed cord outside or within the vagina in addition to abnormal fetal heart rate patterns. Women at higher risk of UCP include multiparas with malpresentation. Other risk factors include polyhydramnios and multiple pregnancies. Iatrogenic UCP (up to 50% of cases) can occur in procedures such as amniotomy, fetal blood sampling, and insertion of a cervical ripening balloon. The perinatal outcome largely depends on the location where the prolapse occurred and the gestational age/birthweight of the fetus. When UCP is diagnosed, delivery should be expedited. Usually, cesarean section is the delivery mode of choice, but vaginal/instrumental delivery could be tried if deemed quicker, particularly in the second stage of labor. Diagnosis-to-delivery interval should ideally be less than 30 minutes; however, if it is expected to be lengthy, measures to relieve cord compression should be attempted. Manual elevation of the presenting part and Vago's method (bladder filling) are the most commonly used maneuvers. Care should be given not to cause cord spasm with excessive manipulation. Simulation training has been shown to improve/maintain all aspects of management and documentation. Prompt diagnosis and interventions and the positive impact of neonatal management have significantly improved the neonatal outcome.
脐带脱垂(UCP)是一种少见的产科急症,可导致显著的新生儿发病和/或死亡。除异常的胎心率模式外,通过在阴道外或阴道内看到/触诊到脱垂的脐带进行诊断。UCP风险较高的女性包括胎位异常的经产妇。其他风险因素包括羊水过多和多胎妊娠。医源性UCP(高达50%的病例)可发生于诸如羊膜穿刺术、胎儿血样采集及宫颈成熟球囊置入等操作过程中。围产期结局很大程度上取决于脱垂发生的部位以及胎儿的孕周/出生体重。诊断出UCP时,应加快分娩。通常,剖宫产是首选的分娩方式,但如果认为更快,可尝试经阴道/器械助产分娩,尤其是在第二产程。理想情况下,从诊断到分娩的间隔应小于30分钟;然而,如果预计间隔时间较长,应尝试采取措施缓解脐带受压。手法上推先露部和瓦戈法(充盈膀胱)是最常用的操作方法。应注意避免过度操作导致脐带痉挛。模拟训练已被证明可改善/维持管理和记录的各个方面。及时诊断和干预以及新生儿管理的积极影响显著改善了新生儿结局。