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1.
J Perinat Med ; 52(5): 494-500, 2024 Jun 25.
Artigo em Inglês | MEDLINE | ID: mdl-38676940

RESUMO

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.


Assuntos
Perda Sanguínea Cirúrgica , Cesárea , Clampeamento do Cordão Umbilical , Humanos , Feminino , Estudos Retrospectivos , Cesárea/efeitos adversos , Cesárea/métodos , Cesárea/estatística & dados numéricos , Gravidez , Adulto , Clampeamento do Cordão Umbilical/métodos , Perda Sanguínea Cirúrgica/estatística & dados numéricos , Perda Sanguínea Cirúrgica/prevenção & controle , Fatores de Tempo , Recém-Nascido , Hemoglobinas/análise , Cordão Umbilical/cirurgia
2.
J Pediatr ; 257: 113383, 2023 06.
Artigo em Inglês | MEDLINE | ID: mdl-36914049

RESUMO

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.


Assuntos
Recém-Nascido Prematuro , Clampeamento do Cordão Umbilical , Lactente , Gravidez , Feminino , Recém-Nascido , Humanos , Recém-Nascido Prematuro/fisiologia , Estudos Cross-Over , Veia Cava Superior/diagnóstico por imagem , Veia Cava Superior/fisiologia , Cordão Umbilical/diagnóstico por imagem , Hemodinâmica/fisiologia , Constrição
3.
Arch Gynecol Obstet ; 2023 Jul 12.
Artigo em Inglês | MEDLINE | ID: mdl-37436461

RESUMO

PURPOSE: This study aimed to   investigate hematological and cardiac changes after early (ECC) versus delayed cord clamping (DCC) in preterm infants at 24-34 weeks of gestation. METHODS: Ninety-six healthy pregnant women were assigned randomly to the ECC (< 10 s postpartum, n = 49) or DCC (45-60 s postpartum, n = 47). Primary endpoint was evaluation of neonatal hemoglobin, hematocrit and bilirrubin levels within the first 7 days after birth. A postpartum blood test was performed in the mother and a neonatal echocardiography in the first week of life. RESULTS: We found differences in hematological parameters during the first week of life. On admission, the DCC group had higher hemoglobin levels than the ECC group (18.7 ± 3.0 vs. 16.8 ± 2.4, p < 0.0014) and higher hematocrit values (53.9 ± 8.0 vs. 48.8 ± 6.4, p < 0.0011). Around day 7 of life, hemoglobin levels were also higher in the DCC group compared with the ECC group (16.4 ± 3.8 vs 13.9 ± 2.5, p < 0.005), as was the hematocrit (49.3 ± 12.7 vs 41.2 ± 8.4, p < 0.0087). The need of transfusion was lower in the DCC compared to the ECC (8.5% vs 24.5%; OR: 0.29, 95% CI: 0.09-0.97, p < 0.036). The need for phototherapy was also higher in the DCC (80.9% vs 63.3%; OR: 0.23, 95% CI: 0.06-0.84, p < 0.026). No differences in cardiac parameters or maternal blood tests. CONCLUSION: DCC improved neonatal hematological parameters. No changes in cardiac function were found and maternal blood loss did not increase to require transfusion.

4.
Am J Obstet Gynecol ; 226(2): 247.e1-247.e10, 2022 02.
Artigo em Inglês | MEDLINE | ID: mdl-34384773

RESUMO

BACKGROUND: Infants with restricted growth for age are frequently exposed to insufficient placental circulation and are more likely to develop postnatal complications. Delayed cord clamping at birth for these infants requires further exploration. OBJECTIVE: This study aimed to compare the short-term neonatal outcomes of delayed cord clamping with that of early cord clamping in small for gestational age preterm infants and to explore whether the effects of delayed cord clamping in small for gestational age preterm infants are different from that in non-small for gestational age preterm infants. STUDY DESIGN: We conducted a national retrospective cohort study, including infants born at <33 weeks' gestation and admitted to the Canadian Neonatal Network units between January 2015 and December 2017. Small for gestational age infants (birthweight of <10th percentile for gestational age and sex) who received delayed cord clamping ≥30 seconds were compared with those who received early cord clamping. In addition, non-small for gestational age infants who received delayed cord clamping were compared with those who received early cord clamping. The main study outcomes included composite outcome of mortality or major morbidity, neonatal morbidity rate, mortality rate, peak serum bilirubin, and number of blood transfusions. Multivariable logistic and linear regression models with a generalized estimation equation approach were used to account for the clustering of infants within centers. RESULTS: Overall, 9722 infants met the inclusion criteria. Of those infants, 1027 (10.6%) were small for gestational age. The median (interquartile range) gestational age was 31 weeks (range, 28-32 weeks). After adjusting for potential confounders, delayed cord clamping in small for gestational age infants was associated with a reduction in the composite outcome of mortality or major morbidity (adjusted odds ratio, 0.60; 95% confidence interval, 0.42-0.86) compared with early cord clamping. There was no difference between the 2 groups in peak serum bilirubin. Many associated benefits of delayed cord clamping in small for gestational age infants were similar to those in non-small for gestational age infants. CONCLUSION: Delayed cord clamping in small for gestational age preterm infants was associated with decreased odds of mortality or major morbidity. Many of the benefits of delayed cord clamping in the small for gestational age preterm infants were similar to those identified in the non-small for gestational age preterm infants.


Assuntos
Recém-Nascido Prematuro , Recém-Nascido Pequeno para a Idade Gestacional , Clampeamento do Cordão Umbilical , Bases de Dados Factuais , Feminino , Idade Gestacional , Humanos , Recém-Nascido , Masculino , Gravidez , Resultado da Gravidez , Estudos Retrospectivos , Resultado do Tratamento
5.
Eur J Pediatr ; 181(12): 4215-4220, 2022 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-36194256

RESUMO

Umbilical cord milking improves postnatal adaptation and short-term outcomes of very preterm infants compared to early cord clamping. Little is known about the impact of umbilical cord milking on long-term neurodevelopmental outcomes. The objective of this study is to compare the effects of intact umbilical cord milking (UCM) vs. early cord clamping (ECC) at birth on neurodevelopmental outcomes at 36 months' corrected age. Preterm infants < 31 weeks' gestation who were randomized at birth to receive three time milking of their attached cord or ECC (< 10 s) were evaluated at 36 months' corrected age. Neurodevelopmental outcomes were assessed by blinded examiners using Bayley Scales of Infant and Toddler Development (version III). Analysis was by intention to treat. Out of the 73 infants included in the original trial, 2 died and 65 (92%) infants were evaluated at 36 months' corrected age. Patient characteristics and short-term outcomes were similar in both study groups. There were no significant differences in the median cognitive, motor or language scores or in the rates of cerebral palsy, developmental impairment, deafness, or blindness between study groups. CONCLUSION: Neurodevelopmental outcomes at 36 months' corrected age of very preterm infants who received UCM were not shown to be significantly different from those who received ECC at birth. TRIAL REGISTRATION: ClinicalTrials.gov: NCT01487187 What is Known: • Compared to early cord clamping, umbilical cord milking improves postnatal adaptation and short-term outcomes of very preterm infants compared to early cord clamping. • Little is known about the impact of umbilical cord milking on neurodevelopmental outcomes. WHAT IS NEW: • Neurodevelopmental outcomes at 3 years of age were not significantly different in very preterm infants who received cord milking vs. those who received early cord clamping at birth.


Assuntos
Doenças do Prematuro , Recém-Nascido Prematuro , Lactente , Feminino , Recém-Nascido , Humanos , Cordão Umbilical , Constrição , Recém-Nascido de muito Baixo Peso , Retardo do Crescimento Fetal
6.
BMC Pregnancy Childbirth ; 22(1): 619, 2022 Aug 05.
Artigo em Inglês | MEDLINE | ID: mdl-35931974

RESUMO

BACKGROUND: Delayed cord clamping increases placental transfusion. In vaginal deliveries higher hemoglobin concentrations are found in the second-born twin. We hypothesized it is unrelated to intertwin transfusion but to the time of cord clamping. METHODS: It was a prospective cohort study of 202 women delivering twins > 32 weeks of gestation. Monoamniotic pregnancy, antenatal intertwin transfusions, fetal demise or major abnormalities were excluded from the study. The time of cord clamping depended on the obstetrician's decision. Hemoglobin, hematocrit, and reticulocyte count were measured at birth and during the second day of life. RESULTS: At birth, hemoglobin and hematocrit levels were significantly higher in the first-born twins delivered with delayed than with early cord clamping. Higher hemoglobin and hematocrit levels were observed during the second day of life in all twins delivered with delayed cord clamping. The lowest levels were observed in twins delivered with early cord clamping. Infants delivered with delayed cord clamping were at a lower risk of respiratory disorders and NICU hospitalization. CONCLUSION: The observed differences in Hgb concentrations between the infants in a twin pregnancy are related to cord clamping time.


Assuntos
Placenta , Cordão Umbilical , Constrição , Feminino , Hemoglobinas/análise , Humanos , Recém-Nascido , Placenta/química , Gravidez , Estudos Prospectivos
7.
J Pediatr ; 238: 118-123.e3, 2021 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-34332971

RESUMO

OBJECTIVE: To determine whether deferred cord clamping (DCC) compared with early cord clamping (ECC) was associated with reduction in death and/or severe neurologic injury among twins born at <30 weeks of gestation. STUDY DESIGN: We performed a retrospective cohort study including all liveborn twins of <30 weeks admitted to a tertiary-level neonatal intensive care unit (NICU) in Canada between 2015 and 2018 using the Canadian Neonatal/Preterm Birth Network database. We compared DCC ≥30 seconds vs ECC <30 seconds. Our primary outcome was a composite of death and/or severe neurologic injury (severe intraventricular hemorrhage grade III/IV and/or periventricular leukomalacia). Secondary outcomes included neonatal morbidity and health care utilization outcomes. We calculated aORs and ß coefficients for categorical and continuous variables, along with 95% CI. Models were fitted with generalized estimated equations accounting for twin correlation. RESULTS: We included 1597 twins (DCC, 624 [39.1%]; ECC, 973 [60.9%]). Death/severe neurologic injury occurred in 17.8% (n = 111) of twins who received DCC and in 21.7% (n = 211) of those who received ECC. The rate of death/severe neurologic injury did not differ significantly between the DCC and ECC groups (aOR 1.07; 95% CI, 0.78-1.47). DCC was associated with reduced blood transfusions (adjusted ß coefficient, -0.49; 95% CI, -0.86 to -0.12) and NICU length of stay (adjusted ß coefficient, -4.17; 95% CI, -8.15 to -0.19). CONCLUSIONS: The primary composite outcome of death and/or severe neurologic injury did not differ between twins born at <30 weeks of gestation who received DCC and those who received ECC, but DCC was associated with some benefits.


Assuntos
Parto Obstétrico/métodos , Doenças do Prematuro/mortalidade , Cordão Umbilical , Adulto , Canadá , Constrição , Bases de Dados Factuais , Feminino , Humanos , Recém-Nascido , Recém-Nascido Prematuro , Masculino , Gravidez , Estudos Retrospectivos , Fatores de Tempo , Gêmeos
8.
J Pediatr ; 225: 58-64.e4, 2020 10.
Artigo em Inglês | MEDLINE | ID: mdl-32442446

RESUMO

OBJECTIVE: To evaluate the rates of practice, and the associations between different cord management strategies at birth (delayed cord clamping [DCC], umbilical cord milking [UCM], and early cord clamping [ECC]) and mortality or major morbidity, rates of blood transfusion, and peak serum bilirubin in a large national cohort of very preterm infants. STUDY DESIGN: We retrospectively studied preterm infants <33 weeks of gestation admitted to the Canadian Neonatal Network between January 2015 and December 2017. Patients who received ECC (<30 seconds), UCM, or DCC (≥30 seconds) were compared. Multiple generalized linear/quantile logistic regression models were used. RESULTS: Of 12 749 admitted infants, 9729 were included; 4916 (50.5%) received ECC, 394 (4.1%) UCM, and 4419 (45.4%) DCC. After adjustment for potential confounders identified between groups in univariate analyses, the odds of mortality or major morbidity were higher in the ECC group when compared with UCM group (aOR, 1.18; 95% CI, 1.03-1.35). Mortality and intraventricular hemorrhage were associated with ECC as compared with DCC (aOR, 1.6 [95% CI, 1.22-2.1] and aOR, 1.29 [95% CI, 1.19-1.41], respectively). The odds of severe intraventricular hemorrhage were higher with UCM compared with DCC (aOR, 1.38; 95% CI, 1.05-1.81). Rates of blood transfusion were higher with ECC compared with UCM and DCC (aOR, 1.67 [95% CI, 1.31-2.14] and aOR, 1.68 [95% CI, 1.35-2.09], respectively), although peak serum bilirubin levels were not significantly different. CONCLUSIONS: Both DCC and UCM were associated with better short-term outcomes than ECC; however, the odds of severe intraventricular hemorrhage were higher with UCM compared with DCC.


Assuntos
Constrição , Recém-Nascido Prematuro , Neonatologia/métodos , Cordão Umbilical/fisiologia , Bilirrubina/sangue , Transfusão de Sangue , Canadá/epidemiologia , Feminino , Humanos , Recém-Nascido , Terapia Intensiva Neonatal , Modelos Lineares , Masculino , Análise de Regressão , Retinopatia da Prematuridade/sangue , Estudos Retrospectivos
9.
Arch Gynecol Obstet ; 299(3): 719-724, 2019 03.
Artigo em Inglês | MEDLINE | ID: mdl-30656440

RESUMO

BACKGROUND: Although delayed umbilical cord clamping has been shown to have significant benefits for both term and preterm infants, currently, data on its impact on blood gas analysis have been scant and conflicting. METHODS: In a retrospective review, we compared the demographic characteristics and blood gas parameters of 114 delayed cord clamping (DCC-births between 45 and 90 s in length; 109 being for 60 s) versus 407 early cord clamping births (ECC-immediately after delivery) collected over a 1-year period. Intrapartum care and timing of cord clamping for individual cases were performed at the discretion of obstetricians. The differences were assessed for statistical and clinical significance. RESULTS: The DCC group was found to have significantly higher mean Apgar scores at both 1 and 5 min (p < 0.05), as well as lower percentages of nulliparous births, cesarean-section deliveries, epidural anesthesia usage, and major pregnancy-related complications. No significant differences in maternal age, gestational age, neonate birthweight, sex, or in the presence of meconium at birth were observed. A higher umbilical artery pO2 in the DCC group [21 (9) vs. 19 (10) mmHg, p < 0.05] was the only statistically significant difference found out of all the blood gas parameters analyzed. CONCLUSIONS: In this study, infants selected for the DCC procedure were found to be overall lower risk than those delivered as per the standard ECC procedure. No clinically significant difference in any blood gas parameter was observed, and therefore, no adjustment to clinical reference intervals is needed for DCC blood gas samples taken after a 1-min delay period.


Assuntos
Gasometria/métodos , Parto Obstétrico/métodos , Sangue Fetal/fisiologia , Cordão Umbilical/cirurgia , Adulto , Feminino , Humanos , Masculino , Gravidez , Estudos Retrospectivos , Fatores de Tempo
10.
Arch Gynecol Obstet ; 300(3): 531-543, 2019 09.
Artigo em Inglês | MEDLINE | ID: mdl-31203386

RESUMO

PURPOSE: Policies for timing of cord clamping varied from early cord clamping (ECC) in the first 30 s after birth, to delayed cord clamping (DCC) in more than 30 s after birth or when cord pulsation has ceased. DCC, an inexpensive method allowed physiological placental transfusion. The aim of this article is to review the benefits and the potential harms of early versus delayed cord clamping. METHODS: Narrative overview, synthesizing the findings of the literature retrieved from searches of computerized databases. RESULTS: Delayed cord clamping in term and preterm infants had shown higher hemoglobin levels and iron storage, the improved infants' and children's neurodevelopment, the lesser anemia, the higher blood pressure and the fewer transfusions, as well as the lower rates of intraventricular hemorrhage (IVH), chronic lung disease, necrotizing enterocolitis, and late-onset sepsis. DCC was seldom associated with lower Apgar scores, neonatal hypothermia of admission, respiratory distress, and severe jaundice. In addition, DCC was not associated with increased risk of postpartum hemorrhage and maternal blood transfusion whether in cesarean section or vaginal delivery. DCC appeared to have no effect on cord blood gas analysis. However, DCC for more than 60 s reduced drastically the chances of obtaining clinically useful cord blood units (CBUs). CONCLUSION: Delayed cord clamping in term and preterm infants was a simple, safe, and effective delivery procedure, which should be recommended, but the optimal cord clamping time remained controversial.


Assuntos
Parto Obstétrico/métodos , Ligadura , Hemorragia Pós-Parto/prevenção & controle , Cordão Umbilical , Anemia/prevenção & controle , Feminino , Humanos , Lactente , Recém-Nascido , Recém-Nascido Prematuro , Circulação Placentária/fisiologia , Hemorragia Pós-Parto/etiologia , Gravidez , Nascimento Prematuro , Nascimento a Termo , Fatores de Tempo
11.
Fetal Diagn Ther ; 45(1): 57-61, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-29506014

RESUMO

OBJECTIVE: To assess the short and medium-term effects of milking maneuver (MM) compared with early cord clamping for infants born before 37 weeks of pregnancy. MATERIAL AND METHODS: 138 infants between 24+0 and 36+6 weeks of gestation were allocated to MM or early cord clamping. Primary outcomes were the requirement of red blood cell transfusions or phototherapy. RESULTS: Initial hemoglobin was significantly higher in the MM group by 1.675 g/dL (p < 0.05) and initial hematocrit by 5.36% (p < 0.05), but no differences in the need of transfusion during the first 30 days after delivery were found (RR 0.8; 95% CI 0.22-2.85). Peak serum bilirubin was similar in both groups (11,097 ± 3.21 vs. 11,247 ± 3.56 mg/dL, p = 0.837). Phototherapy requirements were higher in the MM group (RR 1.62; 95% CI 1.1-2.38). No differences regarding the need of oral iron supplementation, platelet transfusion, respiratory distress syndrome, patent ductus arteriosus, intraventricular hemorrhage, necrotizing enterocolitis, periventricular leukomalacia, meconium aspiration syndrome, use of surfactant, days of oxygen supplementation, need of vasopressors, length of stay in the neonatal intensive care unit, or postpartum hemorrhage were found. CONCLUSION: MM does not reduce the need for red blood cell transfusions and increases phototherapy requirements in preterm infants.


Assuntos
Sangue Fetal , Recém-Nascido Prematuro , Circulação Placentária , Nascimento Prematuro/sangue , Cordão Umbilical/cirurgia , Adulto , Constrição , Transfusão de Eritrócitos , Feminino , Idade Gestacional , Humanos , Recém-Nascido , Masculino , Fototerapia , Gravidez , Nascimento Prematuro/diagnóstico , Nascimento Prematuro/fisiopatologia , Estudos Prospectivos , Fatores de Tempo , Resultado do Tratamento , Cordão Umbilical/fisiopatologia
13.
BMC Pediatr ; 18(1): 234, 2018 07 18.
Artigo em Inglês | MEDLINE | ID: mdl-30021580

RESUMO

BACKGROUND: Delayed cord clamping is the standard of care in infants not requiring resuscitation; however effects of cord clamping strategies have not been evaluated systematically in small for gestational age (SGA) infants. The primary objective was to compare effects of delayed cord clamping (DCC) and early cord clamping (ECC) on serum ferritin at 3 months in SGA infants born at ≥35 weeks. The secondary objectives were to compare hematological parameters, clinical outcomes in neonatal period and growth at 3 months of age. METHODS: All eligible infants with fetal growth restriction were randomized to two groups, DCC at 60 s or ECC group in which the cord was clamped immediately after birth. RESULTS: Total of 142 infants underwent randomization and subsequently 113 infants underwent definite inclusion. At 3 months, the median (IQR) serum ferritin levels were higher in DCC group, compared to ECC; 86 ng/ml (43.35-134.75) vs 50.5 ng/ml (29.5-83.5), p = 0.01. Fewer infants had iron deficiency in DCC group compared to ECC group; 9 (23.6%) vs 21 (47.7%), p = 0.03 [NNT being 4; 95% CI (2-25)].The proportion of infants with polycythemia was significantly higher in DCC group; 23 (41.81) % vs 12 (20.6%), p = 0.01. There was no difference in proportion of infants with symptomatic polycythemia or those who underwent partial exchange transfusions. Clinical outcomes and mortality were similar. CONCLUSIONS: DCC improves iron stores in SGA infants ≥35 weeks at 3 months of age without increasing the risk of symptomatic polycythemia, need for partial exchange transfusions or morbidities associated with polycythemia. TRIAL REGISTRATION: Our trial was retrospectively registered on 29th May 2015 through Clinical trials registry India. Registration number: CTRI 2015/05/005828 .


Assuntos
Parto Obstétrico/métodos , Ferritinas/sangue , Recém-Nascido Pequeno para a Idade Gestacional/metabolismo , Cordão Umbilical , Anemia Ferropriva/etiologia , Constrição , Transfusão Total , Feminino , Hematócrito , Hemoglobinas/metabolismo , Humanos , Hiperbilirrubinemia/etiologia , Índia , Recém-Nascido , Masculino , Policitemia/etiologia , Policitemia/terapia , Fatores de Risco , Fatores de Tempo
14.
J Int Med Res ; 52(6): 3000605241255836, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38851870

RESUMO

OBJECTIVE: To compare the effects of early and delayed cord clamping on the haemoglobin levels of neonates delivered at term. METHODS: This randomized controlled trial enrolled pregnant women during the second stage of labour. They were randomized into either the early cord clamping (ECC) group or the delayed cord clamping (DCC) group in the ratio of 1:1. Following delivery of the baby, the umbilical cords of participants in the ECC group were clamped within 30 s of delivery of the neonate while those of participants in the DCC group were clamped after 2 min from the delivery of the neonate. The primary outcome measure was the effect of ECC and DCC on the haemoglobin levels of neonates delivered at term. RESULTS: A total of 270 pregnant women were enrolled in the study. Their baseline sociodemographic and clinical characteristics were similar in both groups. There was no significant difference in the mean haemoglobin level between ECC and DCC groups at birth. The mean haemoglobin level of the neonates at 48 h postpartum was significantly higher in the DCC group than the ECC group. CONCLUSION: DCC at birth was associated with a significant increase in neonatal haemoglobin levels at 48 h postpartum when compared with ECC.Trial Registration: The trial was registered at Pan African Clinical Trial Registry with approval number PACTR202206735622089.


Assuntos
Hemoglobinas , Clampeamento do Cordão Umbilical , Humanos , Feminino , Recém-Nascido , Hemoglobinas/análise , Hemoglobinas/metabolismo , Gravidez , Adulto , Clampeamento do Cordão Umbilical/métodos , Fatores de Tempo , Cordão Umbilical/cirurgia , Parto Obstétrico/métodos , Nascimento a Termo/sangue , Constrição
15.
Cureus ; 16(2): e53536, 2024 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-38445130

RESUMO

INTRODUCTION: The optimal time for umbilical cord clamping after delivery has been under debate for several decades. This study aimed to assess the time-dependent effects of umbilical cord clamping on maternal and neonatal outcomes. METHODS: An observational correlational design was used to recruit 161 pregnant women conveniently. Outcomes were observed and recorded using a structured checklist developed by the authors. Pregnant females aged ≥18 years, with uncomplicated delivery, and who were willing to participate were recruited. Exclusion criteria included stillbirths, newborns with congenital anomalies, newborns too small for their gestational age, intra-uterine growth restriction, nuchal cord, and meconium-stained liquor. RESULTS: The mean age of the participants was 29.93 ± 6 years. Early clamping (<1 minute) was performed for 93.8% of the participants with a mean of 29.58 ± 18 seconds. Delayed clamping was associated with a decrease in blood loss and the length of hospital stay in addition to an increase in first-minute APGAR score and neonatal temperature (P < 0.05). CONCLUSIONS: Delayed cord clamping was associated with improved maternal and neonatal outcomes.

16.
Early Hum Dev ; 177-178: 105728, 2023 03.
Artigo em Inglês | MEDLINE | ID: mdl-36827750

RESUMO

OBJECTIVE: A large, randomized cluster cross-over trial (N = 1730) comparing intact umbilical cord milking (UCM) to early cord clamping (ECC) in non-vigorous near-term/term newborns demonstrated a reduction in cardiorespiratory interventions at birth and less moderate to severe hypoxic ischemic encephalopathy. We evaluated changes in cerebral tissue oxygenation (StO2), pulse oximetry (SpO2), pulse rate and fraction of inspired oxygen (FiO2) during the first 10 min of life in a subset of infants enrolled in the parent trial. STUDY DESIGN: Infants enrolled in the Milking in Non-Vigorous Infants trial that had StO2 monitoring at birth were included in the sub-study conducted at 3 hospitals the US and Canada. A near-infrared spectroscopy sensor, pulse oximeter and electrocardiogram electrodes were placed. Pulse rate, StO2, SpO2, and FiO2 were collected for the first 10 min after birth. Longitudinal models were used to compare effects of UCM and ECC. RESULTS: Thirty-four infants had StO2 data. Fifteen of these infants received UCM and 19 had ECC. Infants receiving UCM had similar heart rates, SpO2, and StO2 values, but were exposed to less FiO2 over the first 10 min of life than infants with ECC (0.26 ± 0.12 vs. 0.81 ± 0.05 at 10 min). CONCLUSION: Non-vigorous term/near term infants who received UCM at birth required lower FiO2 after delivery when compared to infants who umbilical cords were clamped soon after birth while achieving similar peripheral and cerebral oxygenation. Cord milking may be a potential option for placental transfusion in non-vigorous near term/term infants when delayed cord clamping cannot be performed.


Assuntos
Recém-Nascido Prematuro , Clampeamento do Cordão Umbilical , Lactente , Recém-Nascido , Gravidez , Humanos , Feminino , Estudos Cross-Over , Constrição , Placenta , Hemodinâmica/fisiologia , Cordão Umbilical/fisiologia
17.
Eur J Obstet Gynecol Reprod Biol ; 289: 203-207, 2023 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-37696147

RESUMO

INTRODUCTION: Our hypothesis was that delayed cord clamping (DCC) (not earlier than 30 s; at 30-60 s) in premature neonates (born between 26.0 and 32.6 weeks of gestation), as compared with the usual early cord clamping (ECC), significantly reduces the need for blood transfusions and incidence of intraventricular haemorrhage (IVH) without an increased rate of maternal postpartum haemorrhage. MATERIAL AND METHODS: A prospective, open-label, randomized, controlled trial was conducted at Vall d'Hebron Hospital from July 2014 to December 2018. All pregnant women at risk of impending preterm birth (≥26.0-<33.0 weeks of gestation) who were admitted to the obstetrics emergency department were evaluated for eligibility. If they met the eligibility criteria, they were invited to participate in the study and, if they agreed, they signed an informed consent. Patients were randomly assigned to one of two groups: ECC group and DCC group. RESULTS: Our study included a total of 57 patients: 30 in the ECC group and 27 in the DCC group. Due to a lack of funding and low recruitment rates, the study was discontinued in 2018. Maternal characteristics and obstetric outcomes were similar between both groups. The intention-to-treat analysis did not reveal any differences between groups for neonatal red blood cell transfusions, neonatal IVH or maternal postpartum haemorrhage. There were no differences for secondary outcomes. Similarly, no differences were observed in the as-treated analysis. CONCLUSION: The primary and secondary outcomes of our study were not achieved. Therefore, more meta-analysis and trials are needed to evaluate the appropriate timing of cord clamping in preterm birth.


Assuntos
Gastroenteropatias , Hemorragia Pós-Parto , Nascimento Prematuro , Feminino , Humanos , Lactente , Recém-Nascido , Gravidez , Hemorragia Pós-Parto/prevenção & controle , Estudos Prospectivos , Cordão Umbilical
18.
J Family Med Prim Care ; 11(5): 1789-1793, 2022 May.
Artigo em Inglês | MEDLINE | ID: mdl-35800483

RESUMO

Background: As there is a risk for infant anaemia, early cord clamping which is usually performed at 10-15 seconds of delivery was changed to delayed cord clamping for at least for 30 seconds Delayed cord clamping (DCC) increases the blood volume and haemoglobin levels in newborns and reduces risk of iron deficiency anaemia in both term and preterm infants.Early clamping allows cord blood collection in benefit for transplantation of stem cells. Research Objective: To compare levels of haemoglobin, hematocrit and serum ferritin at birth and 4 weeks of age in babies as well as neonatal outcome following early and delayed cord clamping in births associated with anaemia in pregnancy. Study Design: An observational study. Participants: Anaemic pregnant women with period of gestation 32-40 weeks admitted in labour room for delivery were enrolled. Intervention: Grouping of the patients was done according to the timing of the umbilical cord clamping. 1. Early cord clamping (< 60 seconds) 2. Delayed cord clamping (1 - 3 minutes) Of which 58 subjects were in ECC (early cord clamping)and 62 were in DCC (delayed cord clamping)group. Results: There was no significance of ECC or DCC in developing polycythemia, IVH or hyperbilirubinemia or increased need of blood transfusion. The levels of haemoglobin, hematocrit and ferritin levels were showing significant increased among DCC as compared to ECC. Conclusion: Delayed cord clamping significantly increases the levels of haemoglobin, Serum ferritin and hematocrit at 4 weeks of age. It should be recommended in routine practice where it is not contraindicated especially in resource- poor settings.

19.
Cureus ; 14(10): e30610, 2022 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-36426307

RESUMO

In India, there is an extreme lack of advancement in techniques concerning the care of infants during labor and post-pregnancy, i.e., the postnatal period. India projected an Infant Mortality Rate of 28.771 deaths per 1000 live births for the year 2021. Such a high death rate in infants arises a dire need to discover and launch new techniques and increase the application of the existing lesser-known techniques. One less well-known technique is the milking of the infant's umbilical cord. Transfusion of placental blood has recently been considered definitive in the care of newborns with the boon to the infant of declined death rate in preterm neonates and the enhanced consequences of growth in term infants. The chief goal of this descriptive review article is to examine all the studies relating to umbilical cord milking (UCM) in late-preterm and term infants and to evaluate every achievable outcome and restriction of a given process in clinical application, mainly when compared to rapid and late umbilical cord clamping. Application of milking of the umbilical cord can be seen to improve the health of hypoxic neonates, weight parameters, blood volume, hematocrit, hemoglobin, iron levels in the blood, red blood cell count, blood pressure, right ventricular output, left ventricular functions, cerebral oxygenation, urine output regulation, cognitive abilities, antioxidant levels, better outcomes in the resuscitation of infant and above all helps in lowering Infant Mortality Rates.

20.
J Matern Fetal Neonatal Med ; 34(2): 231-237, 2021 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-30931665

RESUMO

Objective: To compare the effects of early versus delayed cord clamping of term births on maternal and neonatal outcomes.Method: A quasi-experimental study was conducted at the Jordan University Hospital in Amman. One hundred twenty-eight mothers expecting a full-term singleton baby were assigned to delayed cord clamping (90 seconds) or early cord clamping (<30 seconds).Results: Delayed cord clamping was associated with higher hemoglobin levels among newborns after 12 hours. On the other hand, early cord clamping was associated with an increased need for oxygen therapy among newborns and occurrence of postpartum hemorrhage among mothers. There were no differences between the groups on any other variable (Apgar score at 1 and 5 minutes, admission to NICU, baby bilirubin levels after 12 hours and day 3 of birth, and mothers' Hb levels after 12 hours of childbirth).Conclusion: Term babies receiving delayed cord clamping had improved hemoglobin levels with no adverse effect on other maternal and neonatal variables. Creating evidence-based practice guidelines for umbilical cord clamping in Jordanian hospitals is essential to improve neonatal and maternal health.


Assuntos
Hemorragia Pós-Parto , Cordão Umbilical , Constrição , Feminino , Humanos , Recém-Nascido , Jordânia , Gravidez , Fatores de Tempo
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