Effect of Delayed Cord Clamping on Neurodevelopment at 4 Years of Age: A Randomized Clinical Trial

Two-Year Outcomes of Umbilical Cord Milking in Nonvigorous Infants: A Secondary Analysis of the MINVI Randomized Clinical Trial

Importance

Compared with early cord clamping (ECC), umbilical cord milking (UCM) reduces delivery room cardiorespiratory support, hypoxic-ischemic encephalopathy, and therapeutic hypothermia in nonvigorous near-term and full-term infants. However, UCM postdischarge outcomes are not known.

Objective

To determine the 2-year outcomes of children randomized to UCM or ECC at birth in the Milking in Nonvigorous Infants (MINVI) trial.

Design, Setting, and Participants

A secondary analysis to evaluate longer-term outcomes of a cluster-randomized crossover trial was conducted from January 9, 2021, to September 25, 2023. The primary trial took place in 10 medical centers in the US, Canada, and Poland from January 5, 2019, to June 1, 2021, and hypothesized that UCM would reduce admission to the neonatal intensive care unit compared with ECC; follow-up concluded September 26, 2023. The population included near-term and full-term infants aged 35 to 42 weeks' gestation at birth who were nonvigorous; families provided consent to complete developmental screening questionnaires through age 2 years.

Intervention

UCM and ECC.

Main Outcomes and Measures

Ages and Stages Questionnaire, 3rd Edition (ASQ-3) and Modified Checklist for Autism in Toddlers, Revised/Follow-Up (M-CHAT-R/F) questionnaires at ages 22 to 26 months. Intention-to-treat analysis and per-protocol analyses were used.

Results

Among 1730 newborns from the primary trial, long-term outcomes were evaluated in 971 children (81%) who had ASQ-3 scores available at 2 years or died before age 2 years and 927 children (77%) who had M-CHAT-R/F scores or died before age 2 years. Maternal and neonatal characteristics by treatment group were similar, with median birth gestational age of 39 (IQR, 38-40) weeks in both groups; 224 infants (45%) in the UCM group and 201 (43%) in the ECC group were female. The median ASQ-3 total scores were similar (UCM: 255 [IQR, 225-280] vs ECC: 255 [IQR, 230-280]; P = .87), with no significant differences in the ASQ-3 subdomains. Medium- to high-risk M-CHAT-R/F scores were also similar (UCM, 9% [45 of 486] vs ECC, 8% [37 of 441]; P = .86).

Conclusions and Relevance

In this secondary analysis of a randomized clinical trial among late near-term and full-term infants who were nonvigorous at birth, ASQ-3 scores at age 2 years were not significantly different between the UCM and ECC groups. Combined with previously reported important short-term benefits, this follow-up study suggests UCM is a feasible, no-cost intervention without longer-term neurodevelopmental risks of cord milking in nonvigorous near-term and term newborns.

Trial Registration

ClinicalTrials.gov Identifier: NCT03631940.

Does delayed cord clamping result in higher maternal blood loss in primary cesarean sections? A retrospective comparative study

OBJECTIVES

The University Hospital Basel implemented delayed umbilical cord clamping of 30-60 s in all laboring women on April 1, 2020. This practice has been widely researched showing substantial benefit for the neonate. Few studies focused on maternal blood loss. The objective of our retrospective comparative study was to assess the impact of immediate vs. delayed cord clamping on maternal blood loss in primary scheduled cesarean sections.

METHODS

We analyzed data of 98 women with singleton gestations undergoing primary scheduled cesarean section at term. Data from procedures with early cord clamping (ECC) were compared to those after implementation of delayed cord clamping (DCC). Primary outcomes were perioperative change in maternal hemoglobin levels, estimated and calculated blood loss. Secondary outcomes included duration of cesarean section and neonatal data.

RESULTS

There was a statistically significant difference in the mean perioperative decline of hemoglobin of 10.4 g/L (SD=7.92) and 18.7 g/L (SD=10.4) between the ECC and DCC group, respectively (p<0.001). The estimated (482 mL in ECC vs. 566 mL in DCC (p=0.011)) and the calculated blood loss (438 mL in ECC vs. 715 mL in DCC (p=0.002)) also differed significantly. Secondary outcomes showed no significant differences.

CONCLUSIONS

In our study DCC resulted in a statistically significant higher maternal blood loss. In our opinion the widely researched neonatal benefit of DCC outweighs the risk of higher maternal blood loss in low-risk patients. However, maternal risks must be minimized, improvements to preoperative blood management and operative techniques are required.

Sex differences in the association of pretransfusion haemoglobin and cognition in preterm infants

OBJECTIVES

To assess sex-specific differences in the association between pre-transfusion haemoglobin values and early neurodevelopmental function.

DESIGN

Observational follow-up of infants with birth weights <1000 g and gestational ages 22-28 weeks who were enrolled in the NICHD Neonatal Research Network Transfusion of Prematures (TOP) Trial at 19 U.S. sites, 2012-2017.

MAIN OUTCOME MEASURES

Pretransfusion haemoglobin values were obtained longitudinally through 36 weeks' postmenstrual age. The infant's mean pretransfusion haemoglobin was used as a marker of degree of anaemia (n=1655 measures). Measures of brain function were obtained at 22-26 months' corrected age using the Bayley Scales of Infant & Toddler Development, third edition (BSID-III) (n=1290 BSID-III scores). Sex-specific estimates for the linear relation between pretransfusion haemoglobin and BSID-III scores were obtained from repeated-measures regression analysis, adjusted for gestational age, birth weight, study site, clinical characteristics, and demographic covariates.

RESULTS

The relation of pretransfusion haemoglobin with 24-month BSID-III scores showed significant, independent interactions with both (1) sex (p=0.046) and (2) retinopathy of prematurity (ROP; p=0.004). In 614 males, BSID-III scores were higher by 1.07 points per g/dL (95% CI 1.58 to 4.33; p=0.008), not differing significantly among the three subscales (cognitive, language and motor; p=0.94). In 247 infants with ROP, BSID-III scores were higher by 2.95 points per g/dL (95% CI 0.28 to 1.87; p<0.0001), uniformly across subscales (p=0.73). These associations were non-significant in 676 females (p=0.96) and 1043 infants without ROP (p=0.81).

CONCLUSIONS

This study demonstrates sex-specific associations between mean pretransfusion haemoglobin (a marker of the severity of anaemia throughout the neonatal intensive care unit [NICU] hospitalisation) and early neurodevelopmental function at 22-26 months' corrected age.

Effective and simple interventions to improve outcomes for preterm infants worldwide: The FIGO PremPrep-5 initiative

Preterm birth remains the leading cause of mortality among under-5's and is a major contributor to the reduction in quality-of-life adjusted years and reduction in human capital. Globally, there are many interventions and care bundles that aim to reduce the impact of preterm birth once preterm labor has ensued and into the neonatal period; not all of these are applicable in all settings. Here, we introduce the FIGO PremPrep-5 initiative, which aims to disseminate key information on the most simple and effective interventions with the aim of increasing implementation globally. Before delivery, we recommend a course of antenatal corticosteroids, and intrapartum magnesium sulfate. At delivery, we recommend delayed cord clamping. Postnatally, we recommend early feeding with breast milk and immediate kangaroo care. While there are many other interventions that may improve outcomes at the time of labor and after preterm birth, these are clinically effective and relatively inexpensive options that can be practiced in most settings and supplemented with more advanced care. We include examples of a training video and infographics that will be used for dissemination.

Effect of Delayed Cord Clamping on Breastfeeding Behaviors During the First Breastfeed: A Randomized Controlled Study

Objective: Delayed cord clamping (DCC) may increase the success of breastfeeding by improving neurological and cardiovascular function in neonates. In this study, we investigated the impact of DCC on breastfeeding behaviors, neonatal activity status, and maternal satisfaction during the first breastfeeding. Methods: This randomized controlled study was conducted in a tertiary hospital in Turkey with 100 term infants delivered by elective cesarean section with spinal anesthesia. The participants were randomly assigned to the early cord clamping (ECC) group or DCC group. The Infant Breastfeeding Assessment Tool (IBFAT) was used to assess infant alertness, breastfeeding behaviors, and maternal satisfaction with breastfeeding within the first 2 hours of life. Results: Scores on the IBFAT were significantly higher in the DCC group compared with the ECC group (p = 0.02). Maternal satisfaction with breastfeeding did not differ between the groups (p = 0.3). Infant alertness tended to be better in the DCC group, but the difference was not statistically significant (p = 0.08). Conclusion: The results of this study indicated that DCC was associated with more favorable breastfeeding behaviors compared with ECC.

Delayed Cord Clamping for 45 Seconds in Very Low Birth Weight Infants: Impact on Hemoglobin at Birth and Close to Discharge

OBJECTIVES

 To assess the impact of delayed cord clamping (DCC) for 45 seconds on hemoglobin at birth and close to discharge in very low birth weight (VLBW) infants and to compare modes of delivery in infants who received DCC.

STUDY DESIGN

 In a retrospective study, 888 VLBW infants (≤1,500 g) who survived to discharge and received immediate cord clamping (ICC) were compared with infants who received DCC. Infants who received DCC and born via Cesarean section (C-section) were compared with those born via vaginal birth.

RESULTS

 A total of 555 infants received ICC and 333 DCC. Only 188 out of 333 VLBW infants (56.5%) born during the DCC period received DCC. DCC was associated with higher hemoglobin at birth (15.9 vs. 14.9 g/dL, p = 0.001) and close to discharge (10.7 vs. 10.1 g/dL, p < 0.001) and reduced need for blood transfusion (39.4 vs. 54.9%, p < 0.001). In the DCC group, hemoglobin at birth and close to discharge was similar in infants born via C-section and vaginal birth.

CONCLUSION

 DCC for 45 seconds increased hemoglobin at birth and close to discharge and reduced need for blood transfusion in VLBW infants. DCC for 45 seconds was equally effective for infants born by C-section and vaginal delivery. Approximately 44% of VLBW infants did not receive DCC even after implementing DCC guidelines.

KEY POINTS

· Studies to date have shown that DCC improves mortality and short- and long-term outcomes in VLBW infants.. · No consistent guidelines for the duration of DCC in preterm and term neonates.. · DCC for 45 seconds increased hemoglobin at birth and close to discharge in VLBW infants..

Effects of cord clamping timing in at-term elective cesarean section on maternal and neonatal outcomes: a randomized trial

PURPOSE

This study aimed to compare the effects of early cord clamping (ECC), delayed cord clamping (DCC), and umbilical cord milking (MC) on maternal and neonatal outcomes in elective cesarean births.

METHODS

We analyzed 204 women with uncomplicated at-term singleton pregnancies, who underwent cesarean birth under regional anesthesia between March and July 2021. The women were randomized into three groups: DCC (clamped 60 s postpartum), ECC (clamped within 15 s postpartum), or MC (clamped after milking five times) group. The neonatal and maternal outcomes of the groups were evaluated.

RESULTS

The duration of the operation was significantly lower (P < 0.001) in the MC group at 50 min (ECC, 60 min; DCC, 60 min), while intraoperative bleeding was significantly higher (P < 0.001) in the ECC group at 500 mL (DCC, 300 mL; MC, 225 mL). The rates of anemia and polycythemia significantly differed (P = 0.049) between the three groups. DCC and MC did not negatively affect maternal and neonatal outcomes compared with ECC.

CONCLUSION

DCC and MC are superior to ECC in terms of short-term maternal and neonatal outcomes in cases of elective cesarean birth under regional anesthesia.

Umbilical cord milking and delayed cord clamping for the prevention of neonatal hypoglycaemia: a systematic review and meta-analysis

BACKGROUND

Placental management strategies such as umbilical cord milking and delayed cord clamping may provide a range of benefits for the newborn. The aim of this review was to assess the effectiveness of umbilical cord milking and delayed cord clamping for the prevention of neonatal hypoglycaemia.

METHODS

Three databases and five clinical trial registries were systematically reviewed to identify randomised controlled trials comparing umbilical cord milking or delayed cord clamping with control in term and preterm infants. The primary outcome was neonatal hypoglycaemia (study defined). Two independent reviewers conducted screening, data extraction and quality assessment. Quality of the included studies was assessed using the Cochrane Risk of Bias tool (RoB-2). Certainty of evidence was assessed using the Grading of Recommendations, Assessment, Development and Evaluation (GRADE) approach. Meta-analysis using a random effect model was done using Review Manager 5.4. The review was registered prospectively on PROSPERO (CRD42022356553).

RESULTS

Data from 71 studies and 14 268 infants were included in this review; 22 (2 537 infants) compared umbilical cord milking with control, and 50 studies (11 731 infants) compared delayed with early cord clamping. For umbilical cord milking there were no data on neonatal hypoglycaemia, and no differences between groups for any of the secondary outcomes. We found no evidence that delayed cord clamping reduced the incidence of hypoglycaemia (6 studies, 444 infants, RR = 0.87, CI: 0.58 to 1.30, p = 0.49, I2 = 0%). Delayed cord clamping was associated with a 27% reduction in neonatal mortality (15 studies, 3 041 infants, RR = 0.73, CI: 0.55 to 0.98, p = 0.03, I2 = 0%). We found no evidence for the effect of delayed cord clamping for any of the other outcomes. The certainty of evidence was low for all outcomes.

CONCLUSION

We found no data for the effectiveness of umbilical cord milking on neonatal hypoglycaemia, and no evidence that delayed cord clamping reduced the incidence of hypoglycaemia, but the certainty of the evidence was low.

Influence of umbilical cord clamping time on cerebral oxygenation and early cardiac function in term infants

BACKGROUND

Delayed cord clamping is the standard of care for both term and preterm infants worldwide. The aim of this study was to evaluate the effect of 60-second or 180-second delayed cord clamping during labor on cerebral oxygenation and cardiac function.

METHODS

Healthy newborns were divided into two groups: a 60-second delay in cord clamping (60-s DCC) and a 180-second delay in cord clamping (180-s DCC) at birth. Pulse oximetry and cerebral near-infrared spectroscopy (cNIRS) probes were placed during postnatal care. A total of 84 healthy newborns were included in this study. Preductal oxygen saturation (SpO2), heart rate, and cNIRS values were recorded at 5 and 10 minutes after delivery. The cardiac function of the infants was assessed by echocardiography at 3-7 days postnatally.

RESULTS

There was no significant difference between the groups in SpO2 and cNIRS values at 5 and 10 min. While there was no significant difference in the number of neonates with targeted SpO2 at the 5th and 10th min and targeted cNIRS values at the 10th min, there was a significant difference in the number of neonates with target cNIRS values at the 5th min between groups (p <  0.001). Echocardiographic findings showed that pulmonary flow velocity was increased in the 180-s DCC group; the difference was statistically significant (p = 0.04).

CONCLUSION

Our results showed that the number of infants with normal cNIRS values regarding cerebral oxygenation was higher in the 180-s DCC group. The pulmonary flow velocity was significantly increased in the 180-s DCC group in terms of echocardiographic findings.

Quality improvement efforts directed at optimal umbilical cord management in delivery room

Delayed or deferred cord clamping (DCC) and umbilical cord milking (UCM) benefit all infants by optimizing fetal-neonatal transition and placental transfusion. Even though DCC is recommended by almost all maternal and neonatal organizations, it has not been universally implemented. There is considerable variation in umbilical cord management practices across institutions. In this article, we provide examples of successful quality improvement (QI) initiatives to implement optimal cord management in the delivery room. We discuss a number of key elements that should be considering among those undertaking QI efforts to implement DCC and UCM including, multidisciplinary team collaboration, development of theory for change, mapping of the current and ideal process and workflow for cord management, and creation of a unit-specific evidence-based protocol for cord management. We also examine important strategies for implementation and provide suggestions for developing a system for measurement and benchmarking.

Placental cord drainage vs delayed cord clamping at elective caesarean section: A randomised controlled trial

BACKGROUND

Placental cord drainage (PCD) after vaginal birth accelerates placental delivery by 2.85 minutes, but reduces blood loss by only 77 mL.

AIMS

To determine if PCD at elective caesarean section accelerates placental delivery, compared to delayed cord clamping (DCC).

MATERIALS AND METHODS

This randomised controlled trial randomised 100 women undergoing elective caesarean sections to receive either PCD for 60 sec after birth, or DCC for 60 sec. The primary outcome was time from birth until placental delivery. Secondary outcomes included estimated blood loss (EBL), postoperative haemoglobin drop, rates of postpartum haemorrhage (PPH), manual removal of placenta and blood transfusion.

RESULTS

There was no significant difference in timing of placental delivery (PCD 122 sec vs DCC 123.5 sec, P = 0.717). There were no significant differences in EBL (PCD 425 mL vs DCC 400 mL, P = 0.858), postoperative haemoglobin drop (PCD 12 g/L vs DCC 15 g/L, P = 0.297), PPH rate (PCD 45.8% vs DCC 44.4%, P = 0.893, relative risk (RR) 1.03, 95% confidence interval (CI) 0.66-1.62), manual removal rate (PCD 2.1% vs DCC 4.4%, P = 0.609, RR 0.47, 95% CI 0.04-4.99) or transfusion rate (PCD 4.2% vs DCC 0%, P = 0.495).

CONCLUSIONS

PCD did not accelerate placental delivery at caesarean compared with DCC. Given that both PCD and DCC groups had faster placental deliveries than quoted in the literature at caesarean (200 sec), it could be postulated that DCC is mimicking the effect of PCD through passive transfusion to the neonate. This supports routine use of DCC at elective caesarean section.

Delayed cord clamping vs cord milking in elective cesarean delivery at term: a randomized controlled trial

BACKGROUND

Delayed cord clamping has significant beneficial effects on the neonate and its transition to extrauterine life and, therefore, is common practice at vaginal births in the Netherlands. In 2015, 16% of neonates were born via cesarean delivery; moreover, in 81% of these cases, the umbilical cord was clamped and cut immediately. Neonatal benefits of delayed cord clamping are an increased circulating volume of 25 to 30 mL/kg, leading to a higher preload of both the right and left ventricles during the transition from umbilical circulation to pulmonary circulation, thus maintaining a stable left ventricle output, and to higher neonatal hemoglobin and hematocrit levels 24 to 48 hours after birth. Currently, little is known about whether the abovementioned neonatal benefits of delayed cord clamping could apply to neonates delivered by cesarean delivery. In these cases, possible negative effects on neonatal outcomes (ie, neonatal hypothermia, lower Apgar scores, and hyperbilirubinemia) and maternal outcomes (ie, increased maternal blood loss and higher postoperative infection rate) should also be taken into consideration.

OBJECTIVE

This study aimed to determine whether clamping the umbilical cord after 2 minutes is superior to cord milking during elective cesarean deliveries at term, taking both short- and long-term neonatal and maternal outcomes into consideration, and to determine whether cord milking could be an appropriate alternative to delayed cord clamping.

STUDY DESIGN

A randomized controlled trial was conducted in a large secondary care center in the Netherlands (Amphia Hospital in Breda) from October 2020 to April 2022. A total of 115 patients who underwent an elective cesarean delivery between 37 0/7 and 41 6/7 weeks of gestation were included. The primary outcomes were neonatal hemoglobin and hematocrit levels at 48 hours after birth. The secondary outcomes were divided into neonatal and maternal outcomes.

RESULTS

After randomization, 58 participants were treated with cord milking, and 57 participants were treated with delayed cord clamping. There was no significant difference in demographic characteristics between both groups. There was no significant difference in the primary outcomes, with a mean hemoglobin level 48 hours after birth of 12.1 mmol/L in the delayed cord clamping group and 12.2 mmol/L in the cord milking group (P=.80). Regarding our secondary outcomes, there was no significant difference regarding Apgar score, neonatal body temperature, maternal blood loss, and postoperative infection rate between our intervention groups.

CONCLUSION

Hemoglobin and hematocrit levels at 48 hours after birth showed no significant difference when comparing delayed cord clamping with cord milking. Delayed cord clamping did not lead to increased maternal blood loss or postoperative infections compared with a method with a much shorter timeframe between delivery and clamping of the umbilical cord, namely, cord milking. In addition, delayed cord clamping did not lead to a lower Apgar score or neonatal temperature compared with cord milking. Our research suggests that delayed cord clamping can be safely performed during elective cesarean deliveries at term. If intraoperative circumstances do not allow for delayed cord clamping, cord milking can be an appropriate alternative for the neonate at term.

Caffeine pharmacokinetics following umbilical vein injection during delayed cord clamping in preterm lambs

BACKGROUND

Spontaneous breathing during and after delayed cord clamping (DCC) stabilizes cardiopulmonary transition at birth. Caffeine stimulates breathing and decreases apnea in premature newborns. We evaluated the pharmacokinetics and physiological effects of early caffeine administration-direct injection into the umbilical vein (UV) during DCC or administered through a UV catheter (UVC) after delivery.

METHODS

Eighteen extremely premature lambs (125-127d, term gestation 145d) were exteriorized and instrumented. Lambs received caffeine-citrate at high (40 mg/kg) or standard-dose (20 mg/kg) via direct UV (DUV) injection during DCC, or via the UVC.

RESULTS

Mean peak plasma caffeine concentrations were lower with high-dose DUV compared to UVC (18 ± 4.3 vs. 46 ± 12 mg/L, p < 0.05). With standard-dose caffeine, mean peak plasma levels were 7.48 ± 2.6 with DUV and 28.73 ± 9.4 mg/L with UVC. The volume of distribution was higher in the DUV group compared to UVC (2.5 ± 1.0 vs. 0.69 ± 0.15 L/kg) with an estimated 39 ± 18% entering the maternal circulation. Maternal peak concentrations were 0.79 ± 0.71 and 1.43 ± 0.74 mg/L with standard and high-dose DUV, respectively.

CONCLUSIONS

Caffeine injected directly into the UV during DCC is feasible but achieves lower concentrations due to high volume of distribution including maternal circulation. Further trials evaluating DUV caffeine injection should use higher caffeine doses.

IMPACT

Respiratory stimulation with early caffeine may reduce the need for intubation in preterm infants. In the preterm lambs, caffeine injection directly into the umbilical vein during delayed cord clamping is feasible. Plasma caffeine concentrations are less than half when administered directly into the umbilical vein during delayed cord clamping compared to administration via an umbilical venous catheter following birth likely attributed to a larger volume of distribution or injection site leak. There were no significant hemodynamic alterations following caffeine injection.

Effect of delayed cord clamping on red blood cell alloimmunization: a retrospective cohort study

BACKGROUND

Although delayed cord clamping has well-known benefits for preterm and term neonates, it has been inadequately assessed in alloimmunized neonates.

OBJECTIVE

This study aimed to evaluate the benefits and risks of delayed cord clamping in alloimmunized neonates.

STUDY DESIGN

This was a retrospective comparative pre-post cohort study conducted from 2003 to 2018 in a tertiary care center in France. All living singleton neonates whose mothers were followed up for red blood cell alloimmunization during gestation and confirmed at birth (N=224) were included. Neonates were either exposed to immediate (n=125) or delayed cord clamping (n=99). Our main outcome was the time from birth to first exchange transfusions and/or transfusions. Secondary outcomes were hemoglobin level at birth, rate of exchange transfusion, number of postnatal transfusions, maximum bilirubin level, and number of phototherapy hours.

RESULTS

Hemoglobin at birth was significantly higher in case of delayed cord clamping (mean difference, 1.7 g/dL; 95% confidence interval, 0.7-2.8). Among infants treated with exchange transfusion or transfusion, the time to initial treatment was higher in case of delayed cord clamping (median difference, 8 days; rate ratio, 1.51; 95% confidence interval, 1.09-2.10). There were no significant differences in the need for exchange transfusion, the number of transfusions, the maximum total bilirubin level, nor the number of phototherapy hours. In the subgroup analysis of neonates needing intrauterine transfusion during pregnancy (ie, severe alloimmunization), neonates had a lower rate of exchange transfusion in case of delayed cord clamping (odds ratio, 0.36; 95% confidence interval, 0.15-0.82).

CONCLUSION

Our results indicate a benefit of delayed cord clamping in alloimmunization, regardless of pathology severity, without increased risk of jaundice.

Costs and intermediate outcomes for the implementation of evidence-based practices of midwifery under a MIDWIZE framework in an urban health facility in Nairobi, Kenya

BACKGROUND

Three evidence-based midwife-led care practices: dynamic birth positions (DBP), immediate skin-to-skin contact (SSC) with zero separation between mother and newborn, and delayed cord clamping (DCC), were implemented in four sub-Saharan African countries after an internet-based capacity building program for midwifery leadership in quality improvement (QI). Knowledge on costs of this QI initiative can inform resource mobilization for scale up and sustainability.

METHODS

We estimated the costs and intermediate outcomes from the implementation of the three evidence-based practices under the midwife-led care (MIDWIZE) framework in a single facility in Kenya through a pre- and post-test implementation design. Daily observations for the level of practice on DBP, SSC and DCC was done at baseline for 1 week and continued during the 11 weeks of the training intervention. Three cost scenarios from the health facility perspective included: scenario 1; staff participation time costs ($515 USD), scenario 2; staff participation time costs plus hired trainer time costs, training material and logistical costs ($1318 USD) and scenario 3; staff participation time costs plus total program costs for the head trainer as the QI leader from the capacity building midwifery program ($8548 USD).

RESULTS

At baseline, the level of DBP and SSC practices per the guidelines was at 0 % while that of DCC was at 80 %. After 11 weeks, we observed an adoption of DBP practice of 36 % (N = 111 births), SSC practice of 79 % (N = 241 births), and no change in DCC practice. Major cost driver(s) were midwives' participation time costs (56 %) for scenario 1 (collaborative), trainers' material and logistic costs (55 %) in scenario 2(collaborative) and capacity building program costs for the trainer (QI lead) (94 %) in scenario 3 (programmatic). Costs per intermediate outcome were $2.3 USD per birth and $0.5 USD per birth adopting DBP and SSC respectively in Scenario 1; $6.0 USD per birth adopting DBP and $1.4 USD per birth adopting SSC in Scenario 2; $38.5 USD per birth adopting DBP and $8.8 USD per birth adopting SSC in scenario 3. The average hourly wage of the facility midwife was $4.7 USD.

CONCLUSION

Improving adoption of DBP and SSC practices can be done at reasonable facility costs under a collaborative MIDWIZE QI approach. In a programmatic approach, higher facility costs would be needed. This can inform resource mobilization for future QI in similar resource-constrained settings.

Optimizing transition: Providing oxygen during intact cord resuscitation

Delayed clamping and cutting of the umbilical cord at birth is standard practice for management for all newborns. Preterm infants may additionally benefit from a combination of ventilation and oxygen provision during intact cord resuscitation. This review highlights both the potential benefits of such a combined approach and the need for further rigorous studies, including randomized controlled trials, of delivery room management in this population.

Knowledge gaps in optimal umbilical cord management at birth

In 2014 the World Health Organisation recommended providing placental blood to all newborn infants by waiting for at least one minute before clamping the umbilical cord. Mounting evidence supports providing a placental transfusion at the time of birth for all infants. The optimal time before clamping and cutting the umbilical cord is still not yet known, and debate exists around other cord management issues. The newborn's transition phase from intra- to extra-uterine life and the effects of blood volume on the many necessary adaptations are understudied. How best to support these adaptations guides our suggested research questions. Parents' perceptions of enrolling their unborn infant into a study play important parts in the conduct of such trials. This article aims to address these topics and suggest research questions for further studies.

Umbilical cord management - the first opportunity to improve healthcare disparities

This review focuses on iron deficiency and iron deficiency anemia in women and children in the United States. These are common, fixable problems that disproportionally affect minority populations. There are many opportunities for successful screening and management. The knowledge and awareness for identification and treatment of our populations' commonest deficiency is crucial.

Cord management in non-vigorous newborns

Cord management in non-vigorous newborns remains up for debate, as limited studies have validated strategies in this high-risk population. While multiple national and international governing bodies now recommend the routine practice of delayed cord clamping (DCC) in vigorous neonates, these organizations have not reached a consensus on the appropriate approach in non-vigorous neonates.1 Benefits of placental transfusion are greatly needed amongst non-vigorous neonates who are at risk of asphyxiation-associated mortality and morbidities, but the need for immediate resuscitation complicates matters. This chapter discusses the physiological benefits of placental transfusion for non-vigorous neonates and reviews the available literature on different umbilical cord management strategies for this population.

Hemodynamic Changes with Umbilical Cord Milking in Nonvigorous Newborns: A Randomized Cluster Cross-over Trial

OBJECTIVE

To assess the hemodynamic safety and efficacy of umbilical cord milking (UCM) compared with early cord clamping (ECC) in nonvigorous newborn infants enrolled in a large multicenter randomized cluster-crossover trial.

STUDY DESIGN

Two hundred twenty-seven nonvigorous term or near-term infants who were enrolled in the parent UCM vs ECC trial consented for this substudy. An echocardiogram was performed at 12 ± 6 hours of age by ultrasound technicians blinded to randomization. The primary outcome was left ventricular output (LVO). Prespecified secondary outcomes included measured superior vena cava (SVC) flow, right ventricular output (RVO), peak systolic strain, and peak systolic velocity by tissue Doppler examination of the RV lateral wall and the interventricular septum.

RESULTS

Nonvigorous infants receiving UCM had increased hemodynamic echocardiographic parameters as measured by higher LVO (225 ± 64 vs 187 ± 52 mL/kg/min; P < .001), RVO (284 ± 88 vs 222 ± 96 mL/kg/min; P < .001), and SVC flow (100 ± 36 vs 86 ± 40 mL/kg/min; P < .001) compared with the ECC group. Peak systolic strain was lower (-17 ± 3 vs -22 ± 3%; P < .001), but there was no difference in peak tissue Doppler flow (0.06 m/s [IQR, 0.05-0.07 m/s] vs 0.06 m/s [IQR, 0.05-0.08 m/s]).

CONCLUSIONS

UCM increased cardiac output (as measured by LVO) compared with ECC in nonvigorous newborns. Overall increases in measures of cerebral and pulmonary blood flow (as measured by SVC and RVO flow, respectively) may explain improved outcomes associated with UCM (less cardiorespiratory support at birth and fewer cases of moderate-to-severe hypoxic ischemic encephalopathy) among nonvigorous newborn infants.

Midwifery and nursing: Considerations on cord management at birth

Mounting evidence overwhelmingly supports the practice of the return of an infant's placental blood volume at the time of birth. Waiting just a few minutes before clamping the umbilical cord can provide health benefits to infants of all gestational ages. Despite the robust evidence, uptake of delayed cord clamping (DCC) into mainstream obstetrical practice is moving slowly. The practice of DCC is influenced by various factors that include the setting in which the birth takes place, the use of evidence-informed guidelines and other influences that facilitate or hinder the practice of DCC. Through communication, collaboration, and unique disciplinary perspectives, midwives and nurses work with other members of their respective care team to develop strategies for best practice to improve an infant's well-being through optimal cord management. Midwifery has been practiced for centuries throughout the world and midwives have supported DCC since the beginning of recorded history. An important tenet of midwifery philosophy is watchful waiting and non-intervention in normal processes. Nurses are vital to care of birthing families in- and out-of-hospitals as well as in prenatal and postpartum ambulatory care. Nurses and midwives are positioned to be involved in the process of adapting to the mounting evidence for DCC. Strategies to increase better utilization of the practice of DCC have been proposed. For all, teamwork and collaboration among disciplines participating in maternity care are essential for adapting to the new evidence. Involving midwives and nurses as partners in an interdisciplinary approach to plan, implement and sustain DCC at birth increases success.

Delayed cord clamping during deliveries with meconium-stained amniotic fluid

In this cohort study of deliveries affected with meconium, the perinatal factors that were significantly associated with non-performance of delayed cord clamping were primigravida, maternal diabetes, chorioamnionitis, rupture of membranes ≥18 h, assisted vaginal delivery, cesarean section, breech presentation, thick meconium, fetal distress and nonvigorous status of the newborn.

Cardiac Asystole at Birth Re-Visited: Effects of Acute Hypovolemic Shock

Births involving shoulder dystocia or tight nuchal cords can deteriorate rapidly. The fetus may have had a reassuring tracing just before birth yet may be born without any heartbeat (asystole). Since the publication of our first article on cardiac asystole with two cases, five similar cases have been published. We suggest that these infants shift blood to the placenta due to the tight squeeze of the birth canal during the second stage which compresses the cord. The squeeze transfers blood to the placenta via the firm-walled arteries but prevents blood returning to the infant via the soft-walled umbilical vein. These infants may then be born severely hypovolemic resulting in asystole secondary to the loss of blood. Immediate cord clamping (ICC) prevents the newborn's access to this blood after birth. Even if the infant is resuscitated, loss of this large amount of blood volume may initiate an inflammatory response that can enhance neuropathologic processes including seizures, hypoxic-ischemic encephalopathy (HIE), and death. We present the role of the autonomic nervous system in the development of asystole and suggest an alternative algorithm to address the need to provide these infants intact cord resuscitation. Leaving the cord intact (allowing for return of the umbilical cord circulation) for several minutes after birth may allow most of the sequestered blood to return to the infant. Umbilical cord milking may return enough of the blood volume to restart the heart but there are likely reparative functions that are carried out by the placenta during the continued neonatal-placental circulation allowed by an intact cord.

Bilirubin Levels in Neonates ≥35 Weeks of Gestation Receiving Delayed Cord Clamping for an Extended Time-An Observational Study

OBJECTIVE

To describe bilirubin levels in neonates ≥35^0/7 gestational weeks, receiving delayed cord clamping (CC), in relation to the updated Bhutani nomogram.

STUDY DESIGN

This was a retrospective, observational study based on data from medical records and local data sheets. Singleton neonates, born vaginally at a gestational age ≥35^0/7, and with a registered time to CC and at least one registered bilirubin, were included. We excluded neonates with positive direct antiglobulin test or hemolytic disorders. Adjusted analyses were performed using ANOVA and linear or logistic regression.

RESULTS

We analyzed 558 neonates, mean gestational age (SD) 39.9 (1.3) weeks. CC was performed at a median (IQR) time of 6 (5-8) minutes. The dataset contained 1330 bilirubin measurements. Median (IQR) age at bilirubin measurement was 37 (22-54) hours. Bilirubin percentiles in neonates with CC time ≥2 minutes were similar, or lower, compared with the Bhutani nomogram between 12 and 72 hours, but with greater 95th percentile at later hours of age. Phototherapy was initiated in 13 (2.3 %) of the neonates. We found no association between time to CC and hyperbilirubinemia (β = -0.05, P = .07). Need for phototherapy was marginally greater in neonates with shorter time to CC.

CONCLUSIONS

Bilirubin levels were not correlated to time to CC. Our findings indicate that CC beyond 2 minutes can be performed without additional monitoring for jaundice.

Prevention of postpartum hemorrhage in vaginal deliveries

Identification of patients at risk for postpartum hemorrhage (PPH) may allow for prompt diagnosis and intervention. Individual risk factors, risk assessment tools and prediction models have been used for determining a patient's risk of PPH. Measures for the prevention of PPH include identification and management of iron deficiency anemia, unit readiness and preparedness through performing regular simulations and having a PPH cart or medication kit readily available, prophylactic uterotonic - carbetocin alone or dual agents such as oxytocin and misoprostol or oxytocin and methylergometrine or antifibrinolytic (oxytocin and tranexamic acid) use in the third stage of labor immediately after fetal head delivery, and controlled cord traction.

Effects of Placental Transfusion on Late Preterm Infants Admitted to a Mother-Baby Unit

OBJECTIVE

Well-appearing late preterm infants admitted to a mother baby unit may benefit from either delayed cord clamping (DCC) or umbilical cord milking (UCM). However, there are concerns of adverse effects of increased blood volume such as polycythemia and hyperbilirubinemia. The purpose of this study is to examine the short-term effects of placental transfusion on late preterm infants born between 35^0/7 and 36^6/7 weeks of gestation.

STUDY DESIGN

In this pre- and postimplementation retrospective cohort study, we compared late preterm infants who received placental transfusion (161 infants, DCC/UCM group) during a 2-year period after guideline implementation (postimplementation period: August 1, 2017, to July 31, 2019) to infants who had immediate cord clamping (118 infants, ICC group) born during a 2-year period before implementation (preimplementation period: August 1, 2015, to July 31, 2017).

RESULTS

The mean hematocrit after birth was significantly higher in the DCC/UCM group. Fewer infants had a hematocrit <40% after birth in the DCC/UCM group compared with the ICC group. The incidence of hyperbilirubinemia needing phototherapy, neonatal intensive care unit (NICU) admissions, or readmissions to the hospital for phototherapy was similar between the groups. Fewer infants in the DCC/UCM group were admitted to the NICU primarily for respiratory distress. Symptomatic polycythemia did not occur in either group. Median hospital length of stay was 3 days for both groups.

CONCLUSION

Placental transfusion (DCC or UCM) in late preterm infants admitted to a mother baby unit was not associated with increased incidence of hyperbilirubinemia needing phototherapy, symptomatic polycythemia, NICU admissions, or readmissions to the hospital for phototherapy.

KEY POINTS

· Placental transfusion was feasible in late preterm infants.. · Placental transfusion resulted in higher mean hematocrit after birth.. · Placental transfusion did not increase the need for phototherapy.. · Fewer admissions to the NICU for respiratory distress were noted in the placental transfusion group..

Integrated review of the knowledge, attitudes, and practices of maternity health care professionals concerning umbilical cord clamping

BACKGROUND

Umbilical cord clamp timing has implications for newborn health, which include increased iron stores up to 6 months of age. National and International cord clamping guidelines differ as do health professionals' practices. The rationale for differences in cord clamping practice is unclear.

AIMS AND OBJECTIVE

Studies on the knowledge, attitudes, and practices of maternity health care professionals about cord clamp timing were synthesized. Similarities and differences between professional groups and understanding of the optimal timing of cord clamp timing for term newborns were compared.

METHODS

An integrative review was undertaken. PubMed, Scopus, MIDIRS, CINAHL, and Google Scholar were searched. Publication date limits were set between January 2007 and December 2020. Quality appraisal was undertaken using the Critical Appraisal Skills Program (CASP) tools.

RESULTS

Eighteen studies met inclusion criteria, as they included primary research studies that investigated maternity health care professionals' knowledge, attitudes, and practices about umbilical cord clamping, and were written in English. Four main subject areas were identified: a) knowledge of optimal cord clamp timing; b) attitudes and perceptions of early vs deferred cord clamping; c) cord clamping practice; and d) rationale for cord clamping practice.

CONCLUSIONS

Different attitudes and practices were identified between midwifery and medical professionals in relation to cord clamp timing together with health professional knowledge and practice gaps pertaining to optimal cord clamp timing. Contemporary evidence should inform guidelines for clinical practice and be embedded into maternity health professional curricula and professional development programs.

Cord clamping beyond 3 minutes: Neonatal short-term outcomes and maternal postpartum hemorrhage

BACKGROUND

Delaying cord clamping (CC) for 3-5 minutes reduces iron deficiency and improves neurodevelopment. Data on the effects of CC beyond 3 minutes in relation to short-term neonatal outcomes and maternal risk of postpartum hemorrhage are scarce.

METHODS

This was a prospective observational study performed in two delivery departments. Pregnant women with vaginal deliveries were included. Time to CC, estimated postpartum blood loss, and perinatal data were recorded. Spearman's correlation analysis and comparisons between newborns clamped before and after 3 minutes were performed.

RESULTS

In total, 904 dyads were included. The mean gestational age ± standard deviation was 40.1 ± 1.2 weeks. CC was performed at a median time of 6 minutes (range 0-23.5). Apgar scores at 5 and 10 minutes were positively correlated with time to CC (correlation coefficient .140, P &lt; .001 and .161, &lt; .001). There was no correlation between CC time and bilirubin level (correlation coefficient .021, P = .54). The median postpartum blood loss was 300 mL (70-2550 mL), with a negative correlation between CC time and postpartum blood loss (-0.115, P = .001). The postpartum blood loss was larger in the group clamped at ≤3 minutes (median [interquartile range] 400 mL [300-600] vs 300 mL [250-450], [P = .003]].

CONCLUSIONS

Umbilical CC times beyond 3 minutes in vaginal deliveries were not associated with negative short-term outcomes in newborns and were associated with a smaller maternal postpartum blood loss. Although CC time as long as 6 minutes could be considered as safe, further research is needed to decide the optimal timing.

A newborn's "life line" - A review of umbilical cord management strategies

Literature supporting various umbilical management strategies have increased substantially over the past decade. Delayed cord clamping and umbilical cord milking are increasing embraced by obstetricians and neonatologists, and multiple international governing bodies now endorse these practices. This review summarizes the benefits and limitations of the different umbilical cord management strategies for term, near-term, and preterm neonates. Additional studies are underway to elucidate the safety profile of these practices, long term outcomes, and variations within these strategies that could potentially augment the benefits.

A review on development of placental transfusion in term and preterm infants

In recent years, it has been verified that placental transfusion can replenish blood volume of neonates, improve organ perfusion in the early postnatal stage, and facilitate the transition from fetal circulation to adult circulation. Meanwhile, placental transfusion can reduce the need for blood transfusion and the onset of intraventricular hemorrhage, necrotizing enterocolitis, bronchopulmonary dysplasia, and other complications. Furthermore, it can improve the iron store and the long-term prognosis of central nervous system, and reduce infant mortality. Different methods have been used, including delayed cord clamping, intact umbilical cord milking, and cut umbilical cord milking. The World Health Organization (WHO) and other academic organizations recommend the routine use of delayed cord clamping at birth for the most vigorous term and preterm neonates. However, details of placental transfusion should be clarified, and the short/long-term impacts of this technology on some infants with special conditions still require further study.

Umbilical cord clamping time and maternal satisfaction

OBJECTIVE

Clamping of the umbilical cord is part of the third stage of delivery. Delayed cord clamping (DCC) is recommended due to its contribution to prevention of anaemia. There is no evidence on the effect of DCC on maternal satisfaction. The aim of this study is to evaluate the effect of different sociodemographic and obstetric factors, including the timing of cord clamping, on maternal satisfaction with the birth experience in our healthcare system.

DESIGN

Pragmatic non-drug intervention study with simple random assignment of participating mothers (Clinical Trials N°: NCT03624335).

SETTING

A public, university-level hospital in Villarreal city, eastern Spain.

PARTICIPANTS

Childbearing woman, gestation week between 35 and 42 weeks, with regular medical pregnancy checks, single pregnancy and vaginal delivery (N = 198, 80% of the women recruited).

INTERVENTIONS

umbilical cord clamping within 60 seconds of the birth (Early cord clamping, ECC) versus umbilical cord clamping after pulsation had been ceased (Delayed cord clamping, DCC).

MEASUREMENTS

Birth satisfaction was measured using the Mackey Childbirth Satisfaction Rating Scale (MCSRS). Additionally, sociodemographic data, degree of knowledge about the moment of clamping and type of breastfeeding data were recorded. The Mann-Whitney and Kruskal-Wallis tests for comparison of the mean of two, three, or more groups, respectively, and Chi-square and Spearman for comparison of two qualitative and quantitative variables, respectively, were used. To determine the weight of each factor of MCSRS, an exploratory factor analysis was carried out using the maximum likelihood method for factor extraction and the varimax method for factor rotation. The adequacy of the factor analysis was checked by mean of Kaiser-Meyer-Olkin test and Bartlett sphericity test. The level of significance was set at a p-value of < 0.05.

FINDINGS

The average degree of satisfaction was 4.55/5 (SD: 0.37). No statistically significant difference was observed between mothers' satisfaction according to mother level of study or mother's place of birth, while it changed significantly with age (p = 0.0398). Within the obstetric variables, satisfaction was significantly associated with spontaneous amniorrhexis, the duration of the second stage of delivery, and the Apgar value of the newborn at the first minute of life, and was independent of the number of previous pregnancies and deliveries, use of intrapartum oxytocin, epidural analgesia, episiotomy, the weight of the child at birth and type of breastfeeding. Furthermore, there was no relationship between the time of clamping and satisfaction (p = 0.5178).

KEY CONCLUSIONS

Maternal satisfaction with the birth experience varies with the age of the childbearing woman, and some intrapartum factors and the result is not influenced by the time of clamping of the umbilical cord. Therefore, this component of the physiological management of childbirth provides additional benefits for the health of the neonate, without negative consequences on the final perception of the maternal health care received.

IMPLICATIONS FOR PRACTICE

If there are no reasons that justify an early umbilical cord clamping, delaying it brings benefits to the neonate, without negatively affecting the maternal assessment of the experience of childbirth.

Physiologically based cord clamping for infants ≥32+0 weeks gestation: A randomised clinical trial and reference percentiles for heart rate and oxygen saturation for infants ≥35+0 weeks gestation

BACKGROUND

Globally, the majority of newborns requiring resuscitation at birth are full term or late-preterm infants. These infants typically have their umbilical cord clamped early (ECC) before moving to a resuscitation platform, losing the potential support of the placental circulation. Physiologically based cord clamping (PBCC) is clamping the umbilical cord after establishing lung aeration and holds promise as a readily available means of improving early newborn outcomes. In mechanically ventilated lambs, PBCC improved cardiovascular stability and reduced hypoxia. We hypothesised that PBCC compared to ECC would result in higher heart rate (HR) in infants needing resuscitation, without compromising safety.

METHODS AND FINDINGS

Between 4 July 2018 and 18 May 2021, infants born at ≥32+0 weeks' gestation with a paediatrician called to attend were enrolled in a parallel-arm randomised trial at 2 Australian perinatal centres. Following initial stimulation, infants requiring further resuscitation were randomised within 60 seconds of birth using a smartphone-accessible web link. The intervention (PBCC) was to establish lung aeration, either via positive pressure ventilation (PPV) or effective spontaneous breathing, prior to cord clamping. The comparator was early cord clamping (ECC) prior to resuscitation. The primary outcome was mean HR between 60 to 120 seconds after birth, measured using 3-lead electrocardiogram, extracted from video recordings blinded to group allocation. Nonrandomised infants had deferred cord clamping (DCC) ≥120 seconds in the observational study arm. Among 508 at-risk infants enrolled, 123 were randomised (n = 63 to PBCC, n = 60 to ECC). Median (interquartile range, IQR) for gestational age was 39.9 (38.3 to 40.7) weeks in PBCC infants and 39.6 (38.4 to 40.4) weeks in ECC infants. Approximately 49% and 50% of the PBCC and ECC infants were female, respectively. Five infants (PBCC = 2, ECC = 3, 4% total) had missing primary outcome data. Cord clamping occurred at a median (IQR) of 136 (126 to 150) seconds in the PBCC arm and 37 (27 to 51) seconds in the ECC arm. Mean HR between 60 to 120 seconds after birth was 154 bpm (beats per minute) for PBCC versus 158 bpm for ECC (adjusted mean difference -6 bpm, 95% confidence interval (CI) -17 to 5 bpm, P = 0.39). Among 31 secondary outcomes, postpartum haemorrhage ≥500 ml occurred in 34% and 32% of mothers in the PBCC and ECC arms, respectively. Two hundred ninety-five nonrandomised infants (55% female) with median (IQR) gestational age of 39.6 (38.6 to 40.6) weeks received DCC. Data from these infants was used to create percentile charts of expected HR and oxygen saturation in vigorous infants receiving DCC. The trial was limited by the small number of infants requiring prolonged or advanced resuscitation. PBCC may provide other important benefits we did not measure, including improved maternal-infant bonding and higher iron stores.

CONCLUSIONS

In this study, we observed that PBCC resulted in similar mean HR compared to infants receiving ECC. The findings suggest that for infants ≥32+0 weeks' gestation who receive brief, effective resuscitation at closely monitored births, PBCC does not provide additional benefit over ECC (performed after initial drying and stimulation) in terms of key physiological markers of transition. PBCC was feasible using a simple, low-cost strategy at both cesarean and vaginal births. The percentile charts of HR and oxygen saturation may guide clinicians monitoring the transition of at-risk infants who receive DCC.

TRIAL REGISTRATION

Australian New Zealand Clinical Trials Registry (ANZCTR) ACTRN12618000621213.

Cardiopulmonary Resuscitation with an Intact Umbilical Cord

The body of literature supporting different umbilical management strategies has increased over the past decade as the role of cord management in neonatal transition is realized. Multiple international governing bodies endorse delayed cord clamping, and this practice is now widely accepted by obstetricians and neonatologists. Although term and preterm neonates benefit in some ways from delayed cord clamping, additional research on variations in this practice, including resuscitation with an intact cord, aim to find the optimal cord management practice that reduces mortality and major morbidities.

Evidence-based labor management: third stage of labor (part 5)

During the third stage of labor, oxytocin and tranexamic acid, oxytocin and misoprostol, oxytocin and methylergometrine, or carbetocin is recommended for the prevention of postpartum hemorrhage after vaginal delivery. Intravenous oxytocin (10 IU) immediately after delivery of the neonate (after either anterior shoulder or whole-body delivery) and before delivery of the placenta is recommended. If oxytocin and tranexamic acid combination is chosen, intravenous tranexamic acid (1 g) in addition to intravenous oxytocin (10 IU) immediately after delivery of the neonate and before placental delivery is recommended. If oxytocin and misoprostol combination is chosen, sublingual misoprostol (400 µg) in addition to intravenous oxytocin (10 IU) immediately after delivery of the neonate is recommended. If there is no intravenous access or if in low-resource settings, sublingual misoprostol (400 µg) and intramuscular oxytocin (10 IU) are recommended. If oxytocin and methylergometrine combination is chosen, intramuscular methylergometrine (0.2 mg) and intravenous oxytocin (10 IU) immediately after delivery of the neonate are recommended. Single-dose intravenous or intramuscular carbetocin (100 µg) immediately after delivery of the neonate is recommended. Controlled cord traction and delayed cord clamping for approximately 60 seconds is recommended. There is insufficient evidence to support or refute umbilical cord milking, uterine massage, or nipple stimulation for the prevention of postpartum hemorrhage. Repair of first- and second-degree lacerations with continuous synthetic suture technique is recommended. No repair of first-degree lacerations if hemostatic and normal cosmesis can be considered. Repair of third-degree lacerations with end-to-end or overlap continuous synthetic suture technique is recommended. Repair of fourth-degree lacerations with delayed absorbable 4-0 or 3-0 polyglactin or chromic suture in a running fashion is recommended. The use of single-dose second-generation cephalosporin at the time of third- or fourth-degree laceration repairs can be considered. Skin-to-skin contact after delivery is recommended. There is insufficient evidence to support or refute routine cord blood gas sampling after delivery. Public cord blood banking is recommended.

Perinatal care for the extremely preterm infant

Being born preterm (prior to 37 weeks of completed gestation) is a leading cause of childhood death up to five years of age, and is responsible for the demise of around one million preterm infants each year. Rates of prematurity, which range from approximately 5 to 18% of births, are increasing in most countries. Babies born extremely preterm (less than 28 weeks' gestation) and in particular, in the periviable (20^0/7-25^6/7 weeks) period, are at the highest risk of death, or the development of long-term disabilities. The perinatal care of extremely preterm infants and their mothers raises a number of clinical, technical, and ethical challenges. Focusing on 'micropremmies', or those born in the periviable period, this paper provides an update regarding the aetiology and impacts of periviable preterm birth, advances in the antenatal, intrapartum, and acute post-natal management of these infants, and a review of counselling/support approaches for engaging with the infant's family. It concludes with an overview of emerging technology that may assist in improving outcomes for this at-risk population.

Factors associated with umbilical cord clamping in term newborns

OBJECTIVE

To identify factors associated with umbilical cord clamping in term newborns and to compare the recording of clamping time in the medical record with what was observed.

METHOD

Cross-sectional study, with 300 mothers-infants, in a university hospital. Clamping time and medical records were observed, and a structured questionnaire was applied to postpartum women for sociodemographic variables. Bivariate analysis, multivariate Poisson Regression model, and Kappa concordance test were performed.

RESULTS

The percentage of late/optimal clamping observed was 53.7%. The associated factors were skin-to-skin contact in the delivery room (PR = 0.76; 0.61-0.95; p = 0.014), position of the newborn below the vaginal canal (PR = 2.6; CI95%: 1.66-4.07; p < 0.001), position of the newborn at the vaginal level (PR = 2.03; CI95%: 1.5-2.75; p < 0.001), and need for newborn resuscitation in the delivery room (PR = 1.42; CI95%; 1.16-1.73; p = 0.001). Kappa concordance level of the professionals, records compared to the observation was: nurse 0.47, obstetrician 0.59, and pediatrician 0.86.

CONCLUSION

the identification of associated factors and the comparison between recording and observing the clamping time can help in the planning and implementation of improvements for adherence to good practices at birth.

Guideline No. 424: Umbilical Cord Management in Preterm and Term Infants

OBJECTIVE

To assess the impact of deferred (delayed) cord clamping (DCC) and umbilical cord milking in singleton and twin gestations on maternal and infant mortality and morbidity.

TARGET POPULATION

People who are pregnant with preterm or term singletons or twins.

BENEFITS, HARMS, AND COSTS

In preterm singletons, DCC for (ideally) 60 to 120 seconds, but at least for 30 seconds, reduces infant risk of mortality and morbidity. DCC in preterm twins is associated with some benefits. In term singletons, DCC for 60 seconds improves hematological parameters. In very preterm infants, umbilical cord milking increases risk for intraventricular hemorrhage.

EVIDENCE

Searches of Medline, PubMed, Embase, and the Cochrane Library from inception to March 2020 were undertaken using Medical Subject Heading (MeSH) terms and key words related to deferred cord clamping and umbilical cord milking. This document represents an abstraction of the evidence rather than a methodological review.

VALIDATION METHODS

The authors rated the quality of evidence and strength of recommendations using the Grading of Recommendations Assessment, Development and Evaluation (GRADE) approach. See online Appendix A (Tables A1 for definitions and A2 for interpretations of strong and conditional [weak] recommendations).

INTENDED USERS

Maternity and newborn care providers.

RECOMMENDATIONS

Umbilical cord clamping and management of the third stage of labor: A telephone-survey describing Swedish midwives’ clinical practice

INTRODUCTION

The timing of cord clamping impacts children’s short- and long-term well-being. When making clinical decisions, midwives incorporate their tacit and professional knowledge, experience and current evidence. There appears to be a lack of knowledge regarding Swedish midwives’ management of the third stage of labor and cord clamping practice. The aim of this study was to explore Swedish midwives’ clinical practice concerning umbilical cord clamping and the third stage of labor in spontaneous vaginal births.

METHODS

The study was designed as a cross-sectional telephone survey including 13 questions. Midwives were randomly selected from 48 births units in Sweden. Two midwives from each unit were interviewed. The primary outcome was timing of umbilical cord clamping practice in full-term infants. Secondary outcomes were the management of the third stage of labor including prophylactic use of synthetic oxytocin, the timing of cord clamping in preterm infants, controlled cord traction, uterine massage, and cord milking.

RESULTS

Altogether, 95 midwives were interviewed. In full-term infants, all midwives preferred late cord clamping. Considerable heterogeneity was seen regarding the practices of synthetic oxytocin administration postpartum, controlled cord traction, uterine massage or cord milking, and cord clamping in preterm infants.

CONCLUSIONS

Midwives in Sweden modify recommendations regarding delayed cord clamping in a way they might perceive as more natural and practical in their daily, clinical work. The study revealed a reluctance toward the administration of prophylactic oxytocin due to fear that the drug could pass to the infant. An overall large variation of the management of the third stage of labor was seen.

Serum osteocalcin levels at 4 months of age were associated with neurodevelopment at 4 years of age in term-born children

AIM

The hormone osteocalcin influenced neurodevelopment and cognition in mice models; this human study explored potential associations between total serum levels in human infants and neurodevelopment at 4 years of age.

METHODS

The data were based on two Swedish birth cohorts from 2008 to 2009. We followed 158 healthy full-term vaginal births (51% girls) by measuring serum osteocalcin in cord blood and at 4, 12 and 36 months. The values were compared with neurodevelopment tests at 4 years of age.

RESULTS

There was an association between osteocalcin at 4 months and later full-scale intelligence quotient (IQ; r² 0.031, p < 0.05). Children with osteocalcin levels in the highest quartile scored 5.6 (95% confidence interval [1.3, 9.9]) points higher than those in the lowest quartile, with mean scores of 118.8 ± 8.8 and 113.2 ± 9.2 (p < 0.05). They also scored higher on gross motor skills (p < 0.05) and showed greater ability during the drawing trail test (p < 0.005). Cord levels of osteocalcin were negatively associated with processing speed and fine motor development at 4 years, but levels at 12 and 36 months were not associated with later neurodevelopment.

CONCLUSION

Osteocalcin levels in infancy appeared to be associated with later IQ and motor development, but more research is needed.

What does the evidence tell us? Revisiting optimal cord management at the time of birth

A newborn who receives a placental transfusion at birth from delayed cord clamping (DCC) obtains about 30% more blood volume than those with immediate cord clamping (ICC). Benefits for term neonates include higher hemoglobin levels, less iron deficiency in infancy, improved myelination out to 12 months, and better motor and social development at 4 years of age especially in boys. For preterm infants, benefits include less intraventricular hemorrhage, fewer gastrointestinal issues, lower transfusion requirements, and less mortality in the neonatal intensive care unit by 30%. Ventilation before clamping the umbilical cord can reduce large swings in cardiovascular function and help to stabilize the neonate. Hypovolemia, often associated with nuchal cord or shoulder dystocia, may lead to an inflammatory cascade and subsequent ischemic injury. A sudden unexpected neonatal asystole at birth may occur from severe hypovolemia. The restoration of blood volume is an important action to protect the hearts and brains of neonates. Currently, protocols for resuscitation call for ICC. However, receiving an adequate blood volume via placental transfusion may be protective for distressed neonates as it prevents hypovolemia and supports optimal perfusion to all organs. Bringing the resuscitation to the mother's bedside is a novel concept and supports an intact umbilical cord. When one cannot wait, cord milking several times can be done quickly within the resuscitation guidelines. Cord blood gases can be collected with optimal cord management.   Conclusion: Adopting a policy for resuscitation with an intact cord in a hospital setting takes a coordinated effort and requires teamwork by obstetrics, pediatrics, midwifery, and nursing.

Management of Placental Transfusion to Neonates After Delivery

This review summarizes high-quality evidence supporting delayed umbilical cord clamping to promote placental transfusion to preterm and term neonates. In preterm neonates, delayed cord clamping may decrease mortality and the need for blood transfusions. Although robust data are lacking to guide cord management strategies in many clinical scenarios, emerging literature is reviewed on numerous topics including delivery mode, twin gestations, maternal comorbidities (eg, gestational diabetes, red blood cell alloimmunization, human immunodeficiency virus [HIV] infection, and severe acute respiratory syndrome coronavirus 2 [SARS-CoV-2] infection) and neonatal complications (eg, fetal growth restriction, congenital heart disease, and the depressed neonate). Umbilical cord milking is an alternate method of rapid placental transfusion, but has been associated with severe intraventricular hemorrhage in extremely preterm neonates. Data on long-term outcomes are discussed, as well as potential contraindications to delayed cord clamping. Overall, delayed cord clamping offers potential benefits to the estimated 140 million neonates born globally every year, emphasizing the importance of this simple and no-cost strategy.

Reference Range of Complete Blood Count in Healthy Term Newborns 1 Week after Birth

BACKGROUND: Determination of the complete blood count (CBC) and reticulocyte reference range helps diagnose a disease related to changes in erythrocyte indices, white blood count, platelets, and reticulocytes, especially in newborns. AIM: The aim study is to establish a reference range for CBC and reticulocyte in healthy term newborns 1 week after birth. MATERIAL AND METHODS: The study method is prospective analyses of CBC and reticulocyte in term newborns within 1 week after birth. Inclusion criteria are term newborn (gestational age 37–42 weeks) with good tone, breathing, or crying immediately, do not have resuscitation, and the birth weight is ≥2500 g. RESULTS: Two hundred and seventy-seven term newborns met the inclusion criteria. There were 145 (52.35%) male infants and 132 (47.65%) female infants. The reference range of newborns for hemoglobin (Hb) at P2.5–P97.5, P3–P97, P5–P95, and mean ± 2 standard deviation (SD) was 11.70–19.60 g/dL, 11.90–19.57 g/dL, 12.20–19.20 g/dL, and 11.35–19.63 g/dL, respectively. In addition, reference range of male newborns for Hb at P2.5–P97.5, P3–P97, P5–P95, and mean ± 2SD was 12.20–20.14 g/dL, 12.28–19.91 g/dL, 12.63–19.38 g/dL, and 11.47–20.15 g/dL, respectively. The reference range of female newborns for Hb at P2.5–P97.5, P3–P97, P5–P95, and mean ± 2 SD was 11.37–19.20 g/dL, 11.50–19.20 g/dL, 11.80–19.20 g/dL, and 11.37–18.93 g/dL, respectively. CONCLUSION: The reference range of CBC and reticulocyte for healthy term newborns, male newborns, and female newborns in this study can be used as a benchmark.

2021 International Consensus on Cardiopulmonary Resuscitation and Emergency Cardiovascular Care Science With Treatment Recommendations: Summary From the Basic Life Support; Advanced Life Support; Neonatal Life Support; Education, Implementation, and Teams; First Aid Task Forces; and the COVID-19 Working Group

The International Liaison Committee on Resuscitation initiated a continuous review of new, peer-reviewed published cardiopulmonary resuscitation science. This is the fifth annual summary of the International Liaison Committee on Resuscitation International Consensus on Cardiopulmonary Resuscitation and Emergency Cardiovascular Care Science With Treatment Recommendations; a more comprehensive review was done in 2020. This latest summary addresses the most recently published resuscitation evidence reviewed by International Liaison Committee on Resuscitation task force science experts. Topics covered by systematic reviews in this summary include resuscitation topics of video-based dispatch systems; head-up cardiopulmonary resuscitation; early coronary angiography after return of spontaneous circulation; cardiopulmonary resuscitation in the prone patient; cord management at birth for preterm and term infants; devices for administering positive-pressure ventilation at birth; family presence during neonatal resuscitation; self-directed, digitally based basic life support education and training in adults and children; coronavirus disease 2019 infection risk to rescuers from patients in cardiac arrest; and first aid topics, including cooling with water for thermal burns, oral rehydration for exertional dehydration, pediatric tourniquet use, and methods of tick removal. Members from 6 International Liaison Committee on Resuscitation task forces have assessed, discussed, and debated the quality of the evidence, according to the Grading of Recommendations Assessment, Development, and Evaluation criteria, and their statements include consensus treatment recommendations or good practice statements. Insights into the deliberations of the task forces are provided in Justification and Evidence-to-Decision Framework Highlights sections. In addition, the task forces listed priority knowledge gaps for further research.

2021 International Consensus on Cardiopulmonary Resuscitation and Emergency Cardiovascular Care Science With Treatment Recommendations

The International Liaison Committee on Resuscitation initiated a continuous review of new, peer-reviewed published cardiopulmonary resuscitation science. This is the fifth annual summary of the International Liaison Committee on Resuscitation International Consensus on Cardiopulmonary Resuscitation and Emergency Cardiovascular Care Science With Treatment Recommendations; a more comprehensive review was done in 2020. This latest summary addresses the most recently published resuscitation evidence reviewed by International Liaison Committee on Resuscitation task force science experts. Topics covered by systematic reviews in this summary include resuscitation topics of video-based dispatch systems; head-up cardiopulmonary resuscitation; early coronary angiography after return of spontaneous circulation; cardiopulmonary resuscitation in the prone patient; cord management at birth for preterm and term infants; devices for administering positive-pressure ventilation at birth; family presence during neonatal resuscitation; self-directed, digitally based basic life support education and training in adults and children; coronavirus disease 2019 infection risk to rescuers from patients in cardiac arrest; and first aid topics, including cooling with water for thermal burns, oral rehydration for exertional dehydration, pediatric tourniquet use, and methods of tick removal. Members from 6 International Liaison Committee on Resuscitation task forces have assessed, discussed, and debated the quality of the evidence, according to the Grading of Recommendations Assessment, Development, and Evaluation criteria, and their statements include consensus treatment recommendations or good practice statements. Insights into the deliberations of the task forces are provided in Justification and Evidence-to-Decision Framework Highlights sections. In addition, the task forces listed priority knowledge gaps for further research.

Iron deficiency during the first 1000 days of life: are we doing enough to protect the developing brain?

Iron is essential for the functioning of all cells and organs, most critically for the developing brain in the fundamental neuronal processes of myelination, energy and neurotransmitter metabolism. Iron deficiency, especially in the first 1000 days of life, can result in long-lasting, irreversible deficits in cognition, motor function and behaviour. Pregnant women, infants and young children are most vulnerable to iron deficiency, due to their high requirements to support growth and development, coupled with a frequently inadequate dietary supply. An unrecognised problem is that even if iron intake is adequate, common pregnancy-related and lifestyle factors can affect maternal-fetal iron supply in utero, resulting in an increased risk of deficiency for the mother and her fetus. Although preterm birth, gestational diabetes mellitus and intrauterine growth restriction are known risk factors, more recent evidence suggests that maternal obesity and delivery by caesarean section further increase the risk of iron deficiency in the newborn infant, which can persist into early childhood. Despite the considerable threat that early-life iron deficiency poses to long-term neurological development, life chances and a country's overall social and economic progress, strategies to tackle the issue are non-existent, too limited or totally inappropriate. Prevention strategies, focused on improving the health and nutritional status of women of reproductive age are required. Delayed cord clamping should be considered a priority. Better screening strategies to enable the early detection of iron deficiency during pregnancy and early-life should be prioritised, with intervention strategies to protect maternal health and the developing brain.