Delayed Clamping and Milking the Umbilical Cord Prior to Clamping in Preterm Infants and the Effect of Neonatal Outcomes
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 282
- 试验地点
- 2
- 主要终点
- Hemoglobin and Hematocrit values (H/H) in NICU
研究概览
简要总结
This is a randomized controlled trial that will compare the effects of delayed umbilical cord clamping to umbilical cord milking in preterm infants (less than 34 weeks gestation). The infants' hemoglobin and hematocrit levels in the Neonatal Intensive Care Unit (NICU) will be evaluated, as well as the rates of necrotizing enterocolitis, intraventricular hemorrhage, and blood transfusions. The hypothesis is that milking the umbilical cord prior to clamping is superior to simply delayed cord clamping, presumably providing an increased blood volume to the preterm neonate improving its outcomes.
详细描述
The optimal timing for clamping the umbilical cord after birth in preterm infants has been a subject of controversy and debate for many years. It has been until recently the standard practice in ob/gyn to clamp the umbilical cord immediately post delivery to allow for immediate transition resuscitation of the neonate, especially in preterm infants. Due to the fact that optimal timing for cord clamping has yet to be definitively established in the preterm population, more information is needed. Immediate cord clamping, however, could preclude the infant from an extra boost in blood volume that may prove beneficial later in the newborn life. Directly comparing the recently recommended practice of delayed umbilical cord clamping to milking the umbilical cord prior to clamping has the potential to prove beneficial for the neonates in question, as well as change daily obstetrical practices. In this study all infants below 34 weeks will be randomized into one of two groups: delayed cord clamping and milking the umbilical cord prior to clamping. The decision was made not to include immediate cord clamping due to a recent American Congress of Obstetricians and Gynecologists (ACOG) recommendation that all preterm infants have their cord clamping be delayed. Their outcomes will be measured by serial hemoglobin and hematocrit levels while in the NICU, the incidence of necrotizing enterocolitis, incidence of intraventricular hemorrhage, and the need for neonatal blood transfusions.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Prevention
- 盲法
- Single (Participant)
入排标准
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Admitted to Labor & Delivery at Good Samaritan TriHealth Hospital in Cincinnati, Ohio with expected/possible preterm delivery between 23-34 weeks gestation
- •Care provided by Good Samaritan TriHealth Hospital's Faculty Medical Center or Tri-State Maternal Fetal Medicine
排除标准
- •Declined to participate
- •Known congenital anomalies
- •Precipitous delivery preventing completion of the protocol
- •Placental abruption around the time of or as indication for delivery
- •Mother has uterine rupture
- •Non reassuring fetal heart tracing (FHT) immediately prior/leading to delivery
- •Multiple gestation
- •Parvo B19
- •Infants known to be at risk of anemia due to isoimmunization (mother has red blood cell antibodies
研究组 & 干预措施
Delayed Clamping
The American Congress of Obstetricians and Gynecologists (ACOG) recommends delayed cord clamping for preterm infants. Infants randomized to this group will follow the protocol below:
- Infant held at or below level of perineum (vaginal delivery) or incision (cesarean delivery)
- Once infant is delivered designated RN starts timer
- Infant warming bag on delivery table
- Infant placed into warming bag then wrapped in a towel
- Assistant to deliver preps cord clamps
- Registered Nurse (RN) notifies provider at 30 seconds
- Cord clamped and cut
- Infant handed off to waiting staff
- Exceptions: Placental separation, cord stops pulsating, need for immediate resuscitation, all would result in clamping prior to 30 seconds
Cord Milking
Infants randomized to the cord milking group will follow the protocol below:
- Infant held at or below level of perineum (vaginal delivery) or incision (cesarean delivery)
- Infant held and the cord is milked from perineum to infant four times
- Assistant to deliver preps cord clamps
- Cord clamped and cut
- Infant handed off to waiting staff
干预措施: Cord Milking (Procedure)
结局指标
主要结局
Hemoglobin and Hematocrit values (H/H) in NICU
时间窗: NICU admission to discharge, expected average of 50 days
All H/H values in the neonatal intensive care unit (NICU) will be recorded.
次要结局
- Necrotizing enterocolitis(Birth to discharge, expected average of 50 days)
- Intraventricular hemorrhage(Birth to discharge, expected average of 50 days)
- Neonatal transfusions(Birth to discharge, expected average of 50 days)