Lu Yan, Zhang Zhi-Qun
Department of Neonatology, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou 310003, Zhejiang Province, China.
World J Clin Cases. 2022 Jun 6;10(16):5365-5372. doi: 10.12998/wjcc.v10.i16.5365.
Umbilical cord milking (UCM) is an alternative placental transfusion method for delayed umbilical cord clamping in routine obstetric practice, allowing prompt resuscitation of an infant. Thus, UCM has been adopted at some tertiary neonatal centers for preterm infants to enhance placental-to-fetal transfusion. It is not suggested for babies less than 28 wk of gestational age because it is associated with severe brain hemorrhage. For late preterm or term infants who do not require resuscitation, cord management is recommended to increase iron levels and prevent the development of iron deficiency anemia, which is associated with impaired motor development, behavioral problems, and cognitive delays. Concerns remain about whether UCM increases the incidence of intraventricular hemorrhage. However, there are very few reports of late preterm infants presenting with neonatal hemorrhage stroke (NHS) and severe coagulopathy after receiving UCM. Here, we report a case of a late preterm infant born at 34 wk of gestation. She abruptly deteriorated, exhibiting signs and symptoms of NHS and severe coagulopathy after receiving UCM on the first day of life.
A female preterm infant born at 34 wk of gestation received UCM after birth. She was small for her gestational age and described as vigorous with Apgar scores of 9 and 10 at one minute and five minutes of life, respectively. After hospitalization in the neonatal intensive care unit, she showed hypoglycemia and metabolic acidosis. The baby was administered glucose and sodium bicarbonate infusions. Intramuscular vitamin K1 was also used to prevent vitamin K deficiency. The baby developed umbilical cord bleeding and gastric bleeding on day 1 of life; a physical examination showed bilateral conjunctival hemorrhage, and a blood test showed thrombocytopenia, prolonged prothrombin time, prolonged activated partial thromboplastin time, low fibrinogen, raised D-dimer levels and anemia. A subsequent cranial ultrasound and computed tomography scan showed a left parenchymal brain hemorrhage with extension into the ventricular and subarachnoid spaces. The patient was diagnosed with NHS in addition to disseminated intravascular coagulation (DIC). Fresh frozen plasma (FFP) and prothrombin complex concentrate were given for coagulopathy. Red blood cell and platelet transfusions were provided for thrombocytopenia and anemia. A bolus of midazolam, intravenous calcium and phenobarbital sodium were administered to control seizures. The baby's clinical condition improved on day 5 of life, and the baby was hospitalized for 46 d and recovered well without seizure recurrence. Our case report suggests that preterm infants who receive UCM should undergo careful clinical assessment for intracranial hemorrhage, NHS and severe coagulopathy that may develop under certain circumstances. Supportive management, such as intensive care, FFP and blood transfusion, is recommended when the development of massive NHS and associated DIC is suspected.
Our case report suggests that for late preterm infants who are small for gestational age and who receive UCM for alternative placental transfusion, neonatal health care professionals should be cautious in assessing the development of NHS and severe coagulopathy. Neonatal health care professionals should also be more cautious in assessing the complications of late preterm infants after they receive UCM.
在常规产科实践中,脐血挤奶(UCM)是一种替代延迟脐带结扎的胎盘输血方法,可使婴儿迅速复苏。因此,一些三级新生儿中心已采用UCM对早产儿进行治疗,以增强胎盘到胎儿的输血。对于胎龄小于28周的婴儿不建议使用该方法,因为这与严重脑出血有关。对于不需要复苏的晚期早产儿或足月儿,建议进行脐带管理以提高铁水平并预防缺铁性贫血的发生,缺铁性贫血与运动发育受损、行为问题和认知延迟有关。对于UCM是否会增加脑室内出血的发生率仍存在担忧。然而,关于晚期早产儿在接受UCM后出现新生儿出血性中风(NHS)和严重凝血病的报道非常少。在此,我们报告一例孕34周出生的晚期早产儿病例。该婴儿在出生第一天接受UCM后突然病情恶化,出现了NHS和严重凝血病的体征和症状。
一名孕34周出生的女早产儿出生后接受了UCM。她出生时小于胎龄,出生1分钟和5分钟时阿氏评分分别为9分和10分,表现为活力良好。在新生儿重症监护病房住院后,她出现了低血糖和代谢性酸中毒。给予婴儿葡萄糖和碳酸氢钠输注治疗。还使用了肌肉注射维生素K1来预防维生素K缺乏。婴儿在出生第1天出现脐带出血和胃出血;体格检查显示双侧结膜出血,血液检查显示血小板减少、凝血酶原时间延长、活化部分凝血活酶时间延长、纤维蛋白原降低、D - 二聚体水平升高和贫血。随后的头颅超声和计算机断层扫描显示左侧脑实质出血并延伸至脑室和蛛网膜下腔。该患者除弥散性血管内凝血(DIC)外,还被诊断为NHS。针对凝血病给予了新鲜冰冻血浆(FFP)和凝血酶原复合物浓缩剂。针对血小板减少和贫血进行了红细胞和血小板输注。给予一剂咪达唑仑、静脉注射钙剂和苯巴比妥钠以控制惊厥。婴儿在出生第5天临床状况改善,住院46天,恢复良好,未再次发生惊厥。我们的病例报告表明,接受UCM的早产儿应针对颅内出血、NHS和在某些情况下可能发生的严重凝血病进行仔细的临床评估。当怀疑发生大量NHS及相关DIC时,建议进行支持性治疗,如重症监护、FFP和输血治疗。
我们的病例报告表明,对于小于胎龄且接受UCM进行替代胎盘输血的晚期早产儿,新生儿医护人员在评估NHS和严重凝血病的发生时应谨慎。新生儿医护人员在评估晚期早产儿接受UCM后的并发症时也应更加谨慎。