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1.
Am J Obstet Gynecol ; 2024 Jul 19.
Artículo en Inglés | MEDLINE | ID: mdl-39032724

RESUMEN

OBJECTIVE: This study aimed (1) to assess the association between the length of the third stage of labor and adverse maternal outcome after vaginal birth and (2) to evaluate whether earlier manual placenta removal reduces the risk of adverse outcome. DATA SOURCES: PubMed, MEDLINE, Embase, ClinicalTrials.gov, the Cochrane Library, Journals@Ovid, and the World Health Organization International Clinical Trials Registry were searched from January 1, 2000, to June 13, 2023. STUDY ELIGIBILITY CRITERIA: All studies that assessed adverse maternal outcome, defined as any maternal complication after vaginal birth, concerning the length of the third stage of labor and the timing of manual placenta removal were included. METHODS: The included studies were evaluated using the Conducting Systematic Reviews and Meta-Analyses of Observational Studies of Etiology methodology. Pooled odds ratios with 95% confidence intervals were calculated. Heterogeneity (I2 test) was assessed, subgroup analyses were performed, and 95% prediction intervals were calculated. RESULTS: To meet the first objective, 18 cohort studies were included. The assessed cutoff values for the length of the third stage of labor were 15, 30, and 60 minutes. Women with a third stage of labor of ≥15 minutes had an increased risk of postpartum hemorrhage compared with those with a third stage of labor of <15 minutes (odds ratio, 5.55; 95% confidence interval, 1.74-17.72). For women without risk factors for postpartum hemorrhage, the odds ratio was 2.20 (95% confidence interval, 0.75-6.49). Among women with a third stage of labor of ≥60 minutes vs women with a third stage of labor of <60 minutes, the odds ratio was 3.72 (95% confidence interval, 2.36-5.89). The incidence of red blood cell transfusion was higher for a third stage of labor of ≥30 minutes than for a third stage of labor of <30 minutes (odds ratio, 3.23; 95% confidence interval, 2.26-4.61). Of note, 3 studies assessed the timing of placenta removal and the risk of adverse maternal outcome. However, the results could not be pooled because of the different outcome measures. Moreover, 1 randomized controlled trial (RCT) reported a significantly higher incidence of hemodynamic compromise in women with manual placenta removal at 15 minutes than in women with manual placenta removal at 10 minutes (30/156 [19.2%] vs 10/156 [6.4%], respectively), whereas 2 observational studies reported a lower risk of bleeding among women without manual placenta removal. CONCLUSION: Although the risk of adverse maternal outcome after vaginal birth increases when the third stage of labor exceeds 15 minutes, there is no convincing supporting evidence that reducing the length of the third stage of labor by earlier manual removal of the placenta can reduce the incidence of adverse maternal outcome.

2.
Am J Obstet Gynecol ; 230(3S): S1046-S1060.e1, 2024 03.
Artículo en Inglés | MEDLINE | ID: mdl-38462248

RESUMEN

The third stage of labor is defined as the time period between delivery of the fetus through delivery of the placenta. During a normal third stage, uterine contractions lead to separation and expulsion of the placenta from the uterus. Postpartum hemorrhage is a relatively common complication of the third stage of labor. Strategies have been studied to mitigate the risk of postpartum hemorrhage, leading to the widespread implementation of active management of the third stage of labor. Initially, active management of the third stage of labor consisted of a bundle of interventions including administration of a uterotonic agent, early cord clamping, controlled cord traction, and external uterine massage. However, the effectiveness of these interventions as a bundle has been questioned, leading to abandonment of some components in recent years. Despite this, upon review of selected international guidelines, we found that the term "active management of the third stage of labor" was still used, but recommendations for and against individual interventions were variable and not necessarily supported by current evidence. In this review, we: (1) examine the physiology of the third stage of labor, (2) present evidence related to interventions that prevent postpartum hemorrhage and promote maternal and neonatal health, (3) review current global guidelines and recommendations for practice, and (4) propose future areas of investigation. The interventions in this review include pharmacologic agents to prevent postpartum hemorrhage, cord clamping, cord milking, cord traction, cord drainage, early skin-to-skin contact, and nipple stimulation. Treatment of complications of the third stage of labor is outside of the scope of this review. We conclude that current evidence supports the use of effective pharmacologic postpartum hemorrhage prophylaxis, delayed cord clamping, early skin-to-skin contact, and controlled cord traction at delivery when feasible. The most effective uterotonic regimens for preventing postpartum hemorrhage after vaginal delivery include oxytocin plus ergometrine; oxytocin plus misoprostol; or carbetocin. After cesarean delivery, carbetocin or oxytocin as a bolus are the most effective regimens. There is inconsistent evidence regarding the use of tranexamic acid in addition to a uterotonic compared with a uterotonic alone for postpartum hemorrhage prevention after all deliveries. Because of differences in patient comorbidities, costs, and availability of resources and staff, decisions to use specific prevention strategies are dependent on patient- and system-level factors. We recommend that the term "active management of the third stage of labor" as a combined intervention no longer be used. Instead, we recommend that "third stage care" be adopted, which promotes the implementation of evidence-based interventions that incorporate practices that are safe and beneficial for both the woman and neonate.


Asunto(s)
Trabajo de Parto , Oxitócicos , Hemorragia Posparto , Embarazo , Femenino , Recién Nacido , Humanos , Hemorragia Posparto/inducido químicamente , Oxitocina/uso terapéutico , Oxitócicos/uso terapéutico , Práctica Clínica Basada en la Evidencia
3.
Am J Obstet Gynecol ; 230(3S): S653-S661, 2024 03.
Artículo en Inglés | MEDLINE | ID: mdl-38462251

RESUMEN

Childbirth is a defining moment in anyone's life, and it occurs 140 million times per year. Largely a physiologic process, parturition does come with risks; one mother dies every two minutes. These deaths occur mostly among healthy women, and many are considered preventable. For each death, 20 to 30 mothers experience complications that compromise their short- and long-term health. The risk of birth extends to the newborn, and, in 2020, 2.4 million neonates died, 25% in the first day of life. Hence, intrapartum care is an important priority for society. The American Journal of Obstetrics & Gynecology has devoted two special Supplements in 2023 and 2024 to the clinical aspects of labor at term. This article describes the content of the Supplements and highlights new developments in the induction of labor (a comparison of methods, definition of failed induction, new pharmacologic agents), management of the second stage, the value of intrapartum sonography, new concepts on soft tissue dystocia, optimal care during the third stage, and common complications that account for maternal death, such as infection, hemorrhage, and uterine rupture. All articles are available to subscribers and non-subscribers and have supporting video content to enhance dissemination and improve intrapartum care. Our hope is that no mother suffers because of lack of information.


Asunto(s)
Trabajo de Parto , Rotura Uterina , Embarazo , Recién Nacido , Femenino , Humanos , Rotura Uterina/etiología , Parto Obstétrico , Trabajo de Parto Inducido/métodos , Parto
4.
BMC Pregnancy Childbirth ; 23(1): 438, 2023 Jun 13.
Artículo en Inglés | MEDLINE | ID: mdl-37312067

RESUMEN

BACKGROUND: Active management of the third stage of labor involves prophylactic uterotonics, early cord clamping, and controlled cord traction to deliver the placenta. It is designed to facilitate the delivery of the placenta by increasing uterine contractions during the third stage of labor. It is also used to prevent postpartum hemorrhage by averting uterine atony.This systematic review and meta-analysis's emphasis was on the practice and factors associated with active management of the third stage of labor in East Africa. METHODS: PubMed, Web of Science, Science Direct (Scopus), Google Scholar, African Journals Online, and the Cochrane Library electronic databases were used. Data were extracted using Microsoft Excel, and STATA version 14 was used for analysis. A p-value of 0.05 is regarded to indicate potential publication bias: the funnel plot, Begg, and Egger's regression test were used to examine publication bias. Using I2 statistics, the heterogeneity of the studies was evaluated. Pooled analysis was carried out. By country, a subgroup analysis was conducted. RESULTS: Thirteen studies were included in this systematic review and meta-analysis. The pooled prevalence of the practice of active management of the third stage of labor in East Africa was 34.42%. Received training (OR = 6.25, 95%CI = 3.69, 10.58), years of experience (OR = 3.66, 95%CI = 2.35, 5.71), and good knowledge (OR = 3.66, 95%CI = 2.35, 5.71) were statically associated with the practice of active management of third stage of labor. CONCLUSION: The pooled prevalence of practice for active management of the third stage of labor in East Africa was low. Factors that were statistically associated with the practice were received training, years of experience, and good knowledge. Obstetric care providers should continue to receive training in all components of active management of the third stage of labor through training and education programs.


Asunto(s)
Parto Obstétrico , Trabajo de Parto , Femenino , Humanos , Embarazo , África Oriental , Bases de Datos Factuales , Contracción Uterina , Parto Obstétrico/métodos
5.
BMC Pregnancy Childbirth ; 23(1): 573, 2023 Aug 10.
Artículo en Inglés | MEDLINE | ID: mdl-37563728

RESUMEN

BACKGROUND: Postpartum hemorrhage (PPH) is the leading cause of maternal death worldwide, particularly in low- and middle-income countries; however, the majority of these deaths could be avoided with adequate obstetric care. Analyzing severe maternal outcomes (SMO) has been a major approach for evaluating the quality of the obstetric care provided, since the morbid events that lead to maternal death generally occur in sequence. The objective of this study was to analyze the clinical profile, management, maternal outcomes and factors associated with SMO in women who developed PPH and were admitted to an obstetric intensive care unit (ICU) in northeastern Brazil. METHODS: This retrospective cohort study included a non-probabilistic, consecutive sample of postpartum women with a diagnosis of PPH who were admitted to the obstetric ICU of the Instituto de Medicina Integral Prof. Fernando Figueira (IMIP) between January 2012 and March 2020. Sociodemographic, biological and obstetric characteristics and data regarding childbirth, the management of PPH and outcomes were collected and analyzed. The frequency of maternal near miss (MNM) and death was calculated. Multiple logistic regression analysis was performed to determine the adjusted odd ratios (AOR) and their 95% confidence intervals (95% CI) for a SMO. RESULTS: Overall, 136 cases of SMO were identified (37.9%), with 125 cases of MNM (34.9%) and 11 cases of maternal death (3.0%). The factors that remained associated with an SMO following multivariate analysis were gestational age ≤ 34 weeks (AOR = 2.01; 95% CI: 1.12-3.64; p < 0.02), multiparity (AOR = 2.20; 95% CI: 1.10-4.68; p = 0.02) and not having delivered in the institute (AOR = 2.22; 955 CI: 1.02-4.81; p = 0.04). CONCLUSION: Women admitted to the obstetric ICU with a diagnosis of PPH who had had two or more previous deliveries, gestational age ≤ 34 weeks and who had delivered elsewhere were more likely to have a SMO.


Asunto(s)
Muerte Materna , Hemorragia Posparto , Complicaciones del Embarazo , Embarazo , Humanos , Femenino , Lactante , Hemorragia Posparto/epidemiología , Hemorragia Posparto/terapia , Estudios Retrospectivos , Brasil/epidemiología , Mortalidad Materna , Unidades de Cuidados Intensivos
6.
Matern Child Health J ; 27(4): 582-596, 2023 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-36867304

RESUMEN

INTRODUCTION: Literature supports numerous benefits of skin-to-skin contact for neonatal adaptation to extrauterine life and bonding/attachment, but few studies explore the effects of skin-to-skin contact on maternal outcomes. This review aims to map the evidence on skin-to-skin contact in the third stage of labor for postpartum hemorrhage prevention. METHODS: Scoping review, which covered stages recommended by the Institute Joanna Briggs, including studies from the PubMed, EMBASE, CINAHL, LILACS, Web of Science, and Scopus databases, using the descriptors "Postpartum hemorrhage", "Labor stages, third", "Prevention" and "Kangaroo care/Skin-to-skin". RESULTS: 100 publications on the subject found, 13 articles met the inclusion criteria, with 10,169 dyads were assessed in all studies. Publications from 2008 to 2021 were mostly written in English and designed as a randomized controlled trial. Skin-to-skin contact was effective and significant in: reducing the duration of the third stage of labor; placenta delivery; uterine contractility and physiological involution; absence of atony, decreasing blood loss with lower rates of erythrocyte and hemoglobin drop; reducing the need for synthetic oxytocin and/or ergometrine to control bleeding; and reducing changing pads per period and length of stay. DISCUSSION: Skin-to-skin contact was considered an effective, low-cost, and safe strategy, with positive effects already established in the literature for infants and extremely favorable results in postpartum hemorrhage prevention cases, being highly recommended in assistance for the dyad. Open Science Framework Registry ( https://osf.io/n3685 ).


Asunto(s)
Oxitócicos , Hemorragia Posparto , Embarazo , Femenino , Humanos , Hemorragia Posparto/prevención & control , Oxitocina , Ergonovina , Parto Obstétrico , Periodo Posparto , Ensayos Clínicos Controlados Aleatorios como Asunto
7.
Arch Gynecol Obstet ; 2023 Sep 12.
Artículo en Inglés | MEDLINE | ID: mdl-37698604

RESUMEN

OBJECTIVE: The aim of this study was to investigate the effects of uterine massage performed before placental delivery on the third stage of labor and postpartum hemorrhage after vaginal delivery. MATERIALS AND METHODS: The study was designed as a prospective randomized controlled study. Between June 2018 and June 2019, 242 women who gave birth in Istanbul Kanuni Sultan Suleyman Training and Research Hospital were included in the study. The women were divided into two groups; group 1 received uterine massage after vaginal delivery before placental delivery (n: 128) and group 2 did not receive massage (n: 114). Demographic characteristics, delivery times of the baby and placenta, duration of uterine massage, amount of postpartum hemorrhage and postpartum hemoglobin values of both groups were recorded. RESULTS: Baseline characteristics were similar in both groups. Placental output time after delivery was 8.3 ± 4.2 min in group 1 and 13.5 ± 6.3 min in group 2. The third stage of labor was significantly shorter in group 1 (p = 0.012). The amount of blood loss of 500 mL or more after delivery was higher in group 2 but not statistically different (p > 0.05). Hemoglobin value measured within 12-24 h after delivery was significantly lower in group 2 (hemoglobin < 8 g/dL after 12-24 h p = 0.003; hemoglobin < 10 g/dL after 12-24 h p = 0.001). Delta hb value was also significantly lower in group 2 (p = 0.03). With this result, it was determined that bleeding intense enough to require transfusion was more common in group 2. CONCLUSION: In patients delivering vaginally, uterine massage before placental delivery shortens the placental delivery time and reduces postpartum hemorrhage. In addition to oxytocin and controlled cord traction to reduce postpartum blood loss, uterine massage should be routinely used in the active management of the third stage of labor. CLINICAL TRIALS NUMBER: NCT03858569.

8.
Ceska Gynekol ; 88(4): 260-263, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-37643906

RESUMEN

Umbilical cord drainage involves releasing the cord clam from the umbilical cord after separation of the newborn from the maternal end of the umbilical cord. Consequently, there is emptying of blood from the placenta. This procedure is part of the active management of the third stage of labor (TSL). OBJECTIVE: This study is intended to provide knowledge about the duration of TSL and the risk of retention of the placenta using umbilical cord drainage and the no-drainage procedure. MATERIALS AND METHODS: A prospective randomized study of the management of the third stage of labor in 600 patients. The patients were equally divided into two groups with umbilical cord drainage (300) and without umbilical cord drainage (300). TSL was actively managed by FIGO (the International Federation of Gynecology and Obstetrics) recommendations. We monitored the duration of TSL and retention of the placenta after a 30 min period. RESULTS: The mean duration of TSLwas 6.8 ± 0.4 min in the drainage group and 11.6 ± 0.8 min in the control group. We conclude that umbilical cord drainage significantly shortens the duration of TSL (P = 0.026) as well as reduces the risk of placental retention. In a group where we use the drainage of the umbilical cord, placental retention 30 min after delivery of the fetus occurred in four cases while the second set occurred in 14 cases (RR 3.62; 95% CI 1.18-11.14). CONCLUSION: We assume that during umbilical cord drainage, the collapse of thin-walled uteroplacental vessels occurs earlier causing bleeding from these vessels between the placenta and the uterine wall, and therefore, earlier separation of the placenta occurs. Of course, the drainage of the umbilical cord is only one step in the algorithm of active management at the third stage of labor according to FIGO.


Asunto(s)
Retención de la Placenta , Placenta , Embarazo , Recién Nacido , Humanos , Femenino , Estudios Prospectivos , Cordón Umbilical , Feto
9.
BMC Pregnancy Childbirth ; 22(1): 570, 2022 Jul 18.
Artículo en Inglés | MEDLINE | ID: mdl-35850666

RESUMEN

BACKGROUND: The third stage of labor begins with the baby's birth and ends with the expulsion of the placenta and embryonic membranes. The prolongation of the third stage of labor, placental retention, subsequent issues such as postpartum hemorrhage, and manual removal of the placenta have adverse outcomes, which eventually affect the positive experience of delivery. The present study aimed to assess the effect of placental cord drainage on the duration of the third stage of labor and to clarify its effects on postpartum hemorrhage, retained placenta, and incidence of manual removal of placenta. METHODS: This study was a parallel-group randomized trial. Four hundred women in the third stage of labor after vaginal delivery were randomized into the drainage (placenta drainage, n = 200) and the control groups (no placenta drainage, n = 200). In both groups, the third stage of labor was performed with the active method, and the placenta was removed using the Brandt-Andrews maneuver with maternal pushing. The duration of the third stage was compared between the two groups as the primary outcome. Also, the incidence of postpartum hemorrhage, retained placenta, and manual removal of placenta was compared. RESULTS: In all, 175 women in the drainage group and 165 women in the control group were included in the analysis. The third stage of labor was significantly shorter after placental cord drainage. The mean duration of the third stage was 7.09 ± 1.01 minutes in the drainage group, and it was 10.43 ± 3.20 minutes in the control group (P < 0.001). Postpartum hemorrhage, retained placenta, and incidence of manual removal of placenta in the drainage group was significantly less than in the control group. CONCLUSION: Placental cord drainage is a simple and non-invasive method of reducing the duration of the third stage of labor. This method does not increase postpartum complications. TRIAL REGISTRATION: IRCT2014041917341N1 , retrospectively registered at 15. 10. 2017.


Asunto(s)
Retención de la Placenta , Hemorragia Posparto , Drenaje/efectos adversos , Drenaje/métodos , Femenino , Humanos , Tercer Periodo del Trabajo de Parto , Placenta , Retención de la Placenta/epidemiología , Retención de la Placenta/cirugía , Hemorragia Posparto/epidemiología , Hemorragia Posparto/etiología , Embarazo
10.
J Obstet Gynaecol Res ; 48(7): 1760-1767, 2022 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-35506174

RESUMEN

AIM: To reassess the normal duration of each stage of labor in a contemporary Japanese cohort, and to determine whether prolongation of each stage of labor increases the rate of postpartum hemorrhage (PPH) in vaginal deliveries. METHODS: Clinical data of women who delivered at term at 12 facilities between 2012 and 2018 were retrospectively collected. A total of 31 758 women were subdivided into three or four subgroups according to the duration of each stage of labor and parity. Univariate and multivariate logistic regression analyses were performed to estimate crude and adjusted odds ratios (ORs) of PPH (blood loss ≥ 1000 mL) in each subgroup, with women with the shortest durations in each subgroup used as the reference group. RESULTS: The reference range of each stage of labor was found to be shorter than that previously reported. Women with prolonged second (primiparity, adjusted OR: 1.15-1.78; multiparity, adjusted OR: 1.14-1.74) and third (primiparity, adjusted OR: 1.39-4.95; multiparity, adjusted OR: 1.46-3.80) stages of labor showed an increased risk of PPH, whereas those with prolonged first stage did not. A significantly increased risk of PPH was found both in primiparous and multiparous women with third stages of labor ≥ 5 min. CONCLUSIONS: The normal duration of each stage of labor in the Japanese population needs to be revised and well-recognized by obstetric care providers. A prolonged third stage of labor was a more important contributing factor to PPH than prolonged first or second stages.


Asunto(s)
Trabajo de Parto , Hemorragia Posparto , Parto Obstétrico/efectos adversos , Femenino , Humanos , Japón/epidemiología , Hemorragia Posparto/epidemiología , Hemorragia Posparto/etiología , Embarazo , Estudios Retrospectivos , Factores de Riesgo
11.
BMC Pregnancy Childbirth ; 21(1): 268, 2021 Mar 31.
Artículo en Inglés | MEDLINE | ID: mdl-33789611

RESUMEN

BACKGROUND: Retained placenta represents a cause of maternal morbidity and mortality affecting 0.5-3% of all vaginal deliveries. The unpredictability of this condition makes difficult to develop predictive and preventive strategies to apply in clinical practice. This analysis collected and analyzed all known risk factors related to this obstetric complication. METHODS: A systematic literature review for all original research articles published between 1990 and 2020 was performed. Observational studies about retained placenta risk factors published in English language were considered eligible. Conference abstracts, untraceable articles and studies focused on morbidly adherent placenta were excluded. The included articles were screened to identify study design, number of enrolled patients and retained placenta risk factors investigated. All stages of the revision followed the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) Statement. RESULTS: Thirty-five studies met the inclusion criteria. The reported retained placenta prevalence ranged from 0.5 to 4.8%. Maternal age, previous cesarean sections, previous dilation and curettage, previous retained placenta, labor induction, resulted as the most recurrent, independent risk factors for retained placenta. Previous estro-progestins therapy, morphological placental features (weight, shape, insertion of umbilical cord, implantation site), endometriosis, Assisted Reproductive Technologies, Apgar score are fascinating new proposal risk factors. CONCLUSIONS: Old and new data are not enough robust to draw firm conclusions. Prospective and well-designed studies, based on a well agreed internationally retained placenta definition, are needed in order to clarify this potential dramatic and life-threatening condition.


Asunto(s)
Parto Obstétrico/efectos adversos , Retención de la Placenta/epidemiología , Parto Obstétrico/estadística & datos numéricos , Femenino , Humanos , Retención de la Placenta/etiología , Embarazo , Prevalencia , Estudios Prospectivos , Medición de Riesgo/estadística & datos numéricos , Factores de Riesgo
12.
J Obstet Gynaecol Res ; 47(11): 3867-3874, 2021 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-34482579

RESUMEN

AIM: In postpartum women, retained placenta is diagnosed in the absence of signs of placental separation and expulsion, and requires manual removal of the placenta (MROP). MROP may lead to massive hemorrhage, hemodynamic instability, and the need for emergency interventions including blood transfusion, interventional radiology, and hysterectomy. In this study, we aimed to identify the risk factors for retained placenta requiring MROP after vaginal delivery and postpartum hemorrhage (PPH) following MROP. METHODS: A multicenter retrospective study was performed using data from women who delivered at term between 2010 and 2018 at 13 facilities in Japan. Of 36 454 eligible women, 112 women who required MROP were identified. Multivariate logistic regression analyses were conducted to evaluate the risk factors for retained placenta and PPH following MROP. RESULTS: A history of abortion, assisted reproductive technology (ART), instrumental delivery, and delivery of small-for-gestational-age infant were independent risk factors for MROP (adjusted odds ratios [95% confidence intervals]: 1.93 [1.28-2.92], 8.41 [5.43-13.05], 1.80 [1.14-2.82], and 4.32 [1.97-9.48], respectively). ART was identified as an independent risk factor for PPH (adjusted odds ratio [95% confidence interval]: 6.67 [2.42-18.36]) in patients who underwent MROP. CONCLUSION: ART pregnancies significantly increased the risk of retained placenta requiring MROP and PPH. Our results suggest that clinicians need consider patient transfer to a higher-level facility and preparation of sufficient blood products before initiating MROP in cases of ART pregnancies. Our study may assist in identifying high-risk women for PPH before MROP and in guiding treatment decisions, especially in facilities without a blood bank.


Asunto(s)
Retención de la Placenta , Hemorragia Posparto , Parto Obstétrico , Femenino , Humanos , Placenta , Retención de la Placenta/epidemiología , Retención de la Placenta/terapia , Hemorragia Posparto/epidemiología , Hemorragia Posparto/etiología , Hemorragia Posparto/terapia , Embarazo , Estudios Retrospectivos
13.
Arch Gynecol Obstet ; 304(4): 903-911, 2021 10.
Artículo en Inglés | MEDLINE | ID: mdl-33743043

RESUMEN

PURPOSE: Postpartum hemorrhage is the major cause of maternal mortality worldwide. Retained placenta accounts for nearly 20% of severe cases. We investigated the influence of the time factor and retained placenta etiology on postpartum hemorrhage dynamics. METHODS: Our retrospective study analyzed a single-center cohort of 296 women with retained placenta. Blood loss was measured using a validated and accurate technique based on calibrated blood collection bags, backed by the post- vs pre-partum decrease in hemoglobin. We evaluated the relationship between these two blood loss parameters and the duration of the third stage of labor using Spearman rank correlation, followed by subgroup analysis stratified by third stage duration and retained placenta etiology. RESULTS: Correlation analysis revealed no association between third stage duration and measured blood loss or decrease in hemoglobin. A shorter third stage (< 60 min) was associated with significantly increased uterine atony (p = 0.001) and need for blood transfusion (p = 0.006). Uterine atony was significantly associated with greater decrease in hemoglobin (p < 0.001), higher measured blood loss (p < 0.001), postpartum hemorrhage (p = 0.048), and need for blood transfusion (p < 0.001). CONCLUSION: Postpartum blood loss does not correlate with third stage duration in women with retained placenta. Our results suggest that there is neither a safe time window preceding postpartum hemorrhage, nor justification for an early cut-off for manual removal of the placenta. The prompt detection of uterine atony and immediate prerequisites for manual removal of the placenta are key factors in the management of postpartum hemorrhage.


Asunto(s)
Tercer Periodo del Trabajo de Parto/fisiología , Retención de la Placenta/fisiopatología , Hemorragia Posparto/etiología , Cesárea , Femenino , Humanos , Retención de la Placenta/epidemiología , Hemorragia Posparto/epidemiología , Embarazo , Estudios Retrospectivos
14.
Acta Obstet Gynecol Scand ; 99(3): 374-380, 2020 03.
Artículo en Inglés | MEDLINE | ID: mdl-31603530

RESUMEN

INTRODUCTION: Isolated single umbilical artery (iSUA) refers to single umbilical artery cords with no other fetal malformations. The association of iSUA to adverse outcome of pregnancy has not been consistently reported, and whether iSUA carries increased risk of third stage of labor complications has not been studied. We aimed to investigate the risk of adverse perinatal outcome, third stage of labor complications, and associated placental and cord characteristics in pregnancies with iSUA. A further aim was to assess the risk of recurrence of iSUA and anomalous cord or placenta characteristics in Norway. MATERIAL AND METHODS: This was a population-based study of all singleton pregnancies with gestational age >16 weeks at birth using data from the Medical Birth Registry of Norway from 1999 to 2014 (n = 918 933). Odds ratios (OR) with 95% confidence intervals were calculated for adverse perinatal outcome (preterm birth, perinatal and intrauterine death, low Apgar score, transferral to neonatal intensive care ward, placental and cord characteristics [placental weight, cord length and knots, anomalous cord insertion, placental abruption and previa]), and third stage of labor complications (postpartum hemorrhage and the need for manual placental removal or curettage) in pregnancies with iSUA, and recurrence of iSUA using generalized estimating equations and logistic regression. RESULTS: Pregnancies with iSUA carried increased risk of adverse perinatal outcome (OR 5.06, 95% confidence interval [CI] 4.26-6.02) and perinatal and intrauterine death (OR 5.62, 95% CI 4.69-6.73), and a 73% and 55% increased risk of preterm birth and small-for-gestational-age neonate, respectively. The presence of iSUA also carried increased risk of a small placenta, placenta previa and abruption, anomalous cord insertion, long cord, cord knot and third stage of labor complications. Women with iSUA, long cord or anomalous cord insertion in one pregnancy carried increased risk of iSUA in the subsequent pregnancy. CONCLUSIONS: The presence of ISUA was associated with a more than five times increased risk of intrauterine and perinatal death and with placental and cord complications. The high associated risk of adverse outcome justifies follow up with assessment of fetal wellbeing in the third trimester, intrapartum surveillance and preparedness for third stage of labor complications.


Asunto(s)
Tercer Periodo del Trabajo de Parto , Complicaciones del Trabajo de Parto/epidemiología , Arteria Umbilical Única/epidemiología , Adulto , Femenino , Muerte Fetal , Humanos , Recién Nacido , Noruega/epidemiología , Complicaciones del Trabajo de Parto/mortalidad , Embarazo , Resultado del Embarazo , Tercer Trimestre del Embarazo , Sistema de Registros , Factores de Riesgo , Arteria Umbilical Única/mortalidad , Ultrasonografía Prenatal
15.
Arch Gynecol Obstet ; 301(3): 643-653, 2020 03.
Artículo en Inglés | MEDLINE | ID: mdl-32124015

RESUMEN

BACKGROUND: Clinical studies and trials have shown that oxytocin can effectively reduce postpartum bleeding, whether by intramuscular (IM) injection or intravenous (IV) injection. These two methods are widely used in the prevention and treatment for the third stage of childbirth. However, it is unclear whether the subtle differences between the mode of these routes have any effect on maternal outcomes. OBJECTIVES: To systematically evaluate the efficacy and safety of oxytocin administered intramuscularly or intravenously for prophylactic management of the third stage of labor after vaginal birth. METHODS: Computerized retrieval of PubMed, the Cochrane Library, Web of Science, Embase, and ClinicalTrials.gov was conducted to collect randomized controlled trials (RCT) on the effects of IM and IV oxytocin on the third stage of labor. After independent literature screening, data extraction and evaluation of the bias risk of included studies by two evaluators, RevMan 5.3 software was used for a meta-analysis. RESULTS: Six studies with 7734 women were included in this study. Meta-analysis results showed that: the severe postpartum hemorrhage (PPH) rate [risk ratio (RR) 1.54, 95% confidence interval (95% CI) 1.08-2.20, P = 0.02], PPH rate (RR 1.31, 95% CI 1.11-1.55, P = 0.001), incidence of blood transfusion (RR 2.30, 95% CI 1.35-3.93, P = 0.002) and the need of manual removal of placenta (RR 1.44, 95% CI 1.05-1.96, P = 0.02) for IM group were higher than IV group, but there were no significant differences in the use of additional uterotonics (P = 0.31) and the incidence of serious maternal morbidity and adverse effects between two groups. None of the included studies reported maternal death. CONCLUSION: For clinical practice, intravenous injection oxytocin 10 IU may be a good, safe option in the management of the third stage of labor. Medical conditions, available resources, adverse effects, and women' s preferences should also be considered. If an IV line is already in place at delivery, IV administration may be preferable to IM injection.


Asunto(s)
Tercer Periodo del Trabajo de Parto/efectos de los fármacos , Oxitócicos/uso terapéutico , Oxitocina/administración & dosificación , Oxitocina/uso terapéutico , Administración Intravenosa , Adolescente , Adulto , Femenino , Humanos , Inyecciones Intramusculares , Persona de Mediana Edad , Oxitócicos/farmacología , Oxitocina/farmacología , Embarazo , Adulto Joven
16.
BMC Pregnancy Childbirth ; 19(1): 38, 2019 Jan 18.
Artículo en Inglés | MEDLINE | ID: mdl-30658605

RESUMEN

BACKGROUND: Oxytocin for postpartum hemorrhage (PPH) prophylaxis is commonly administered by either intramuscular (IM) injection or intravenous (IV) infusion with both routes recommended equally and little discussion of potential differences between the two. This trial assesses the effectiveness and safety of 10 IU oxytocin administered as IM injection versus IV infusion and IV bolus during the third stage of labor for PPH prophylaxis. METHODS: In two tertiary level Egyptian maternity hospitals, women delivering vaginally without exposure to pre-delivery uterotonics were randomized to one of three prophylactic oxytocin administration groups after delivery of the baby. Blood loss was measured 1 h after delivery, and side effects were recorded. Primary outcomes were mean postpartum blood loss and proportion of women with postpartum blood loss ≥500 ml in this open-label, three-arm, parallel, randomized controlled trial. RESULTS: Four thousand nine hundred thirteen eligible, consenting women were randomized. Compared to IM injection, mean blood loss was 5.9% less in the IV infusion arm (95% CI: -8.5, - 3.3) and 11.1% less in the IV bolus arm (95% CI: -14.7, - 7.8). Risk of postpartum blood loss ≥500 ml in the IV infusion arm was significantly less compared to IM injection (0.8% vs. 1.5%, RR = 0.50, 95% CI: 0.27, 0.91). No side effects were reported in any arm. CONCLUSIONS: Intravenous oxytocin is more effective than intramuscular injection for the prevention of PPH in the third stage of labor. Oxytocin delivered by IV bolus presents no safety concerns after vaginal delivery and should be considered a safe option for PPH prophylaxis. TRIAL REGISTRATION: clinicaltrials.gov # NCT01914419 , posted August 2, 2013.


Asunto(s)
Parto Obstétrico/métodos , Tercer Periodo del Trabajo de Parto/efectos de los fármacos , Oxitócicos/administración & dosificación , Oxitocina/administración & dosificación , Hemorragia Posparto/prevención & control , Administración Intravenosa , Adulto , Egipto , Femenino , Humanos , Infusiones Intravenosas , Inyecciones Intramusculares , Hemorragia Posparto/etiología , Embarazo , Resultado del Tratamiento
17.
Birth ; 46(4): 602-607, 2019 12.
Artículo en Inglés | MEDLINE | ID: mdl-31216383

RESUMEN

INTRODUCTION: In this study, we describe the distribution of placenta delivery and the incidence of postpartum hemorrhage in both spontaneous placental delivery and manual removal of the placenta. METHODS: A retrospective study was performed of 7603 singleton vaginal deliveries of a gestational age over 32 weeks, registered between September 2011 and 2016. We calculated the incidence of postpartum hemorrhage (≥1000 mL blood loss) per 10-minute duration of the third stage. The odds ratio for developing postpartum hemorrhage was assessed, adjusted for risk factors. The incidence of postpartum hemorrhage was compared between women that did and did not receive manual removal of placenta. RESULTS: The median duration of the third stage was 10 minutes (interquartile range 7-16 minutes). The median amount of blood loss was 300 mL (200-400 mL). The overall incidence of postpartum hemorrhage was 8.5%. With every additional 10 minutes of third-stage duration, the risk of developing postpartum hemorrhage significantly increased. In a third stage longer than 60 minutes, the incidence of postpartum hemorrhage was 21.2% without manual removal of the placenta and 70.3% with manual removal. CONCLUSIONS: The incidence of postpartum hemorrhage increases significantly from 10 to 19 minutes into the third stage. Women with the removal of the placenta had a significantly higher percentage of postpartum hemorrhage. The optimal timing for manual removal of the placenta should be investigated in a carefully designed randomized controlled trial to examine whether earlier manual removal of placenta lowers the incidence and limits the severity of postpartum hemorrhage.


Asunto(s)
Tercer Periodo del Trabajo de Parto , Hemorragia Posparto/epidemiología , Adulto , Estudios de Cohortes , Parto Obstétrico , Femenino , Edad Gestacional , Humanos , Embarazo , Estudios Retrospectivos , Factores de Tiempo
18.
BMC Pregnancy Childbirth ; 18(1): 223, 2018 Jun 13.
Artículo en Inglés | MEDLINE | ID: mdl-29895276

RESUMEN

BACKGROUND: Tanzania has a maternal mortality ratio of 556 per 100,000 live births, representing 21% of all deaths of women of reproductive age. Hemorrhage, mostly postpartum hemorrhage (PPH), is estimated to cause at least 25% of maternal deaths in Tanzania. In 2008, the Ministry of Health, Community Development, Gender, Elderly and Children launched interventions to improve efforts to prevent PPH. Competency-based training for skilled birth attendants and ongoing quality improvement prioritized the practice of active management of the third stage of labor (AMTSL). METHODS: A cross-sectional study was conducted in 52 health facilities in Tanzania utilizing direct observations of women during labor and delivery. Observations were conducted in 2010 and, after competency-based training and quality improvement interventions in the facilities, in 2012. A total of 489 deliveries were observed in 2010 and 558 in 2012. Steps for AMTSL were assessed using a standardized structured observation checklist that was based on World Health Organization guidelines. RESULTS: The proportion of deliveries receiving all three AMTSL steps improved significantly by 19 percentage points (p < 0.001) following the intervention, with the most dramatic increase occurring in health centers and dispensaries (47.2 percentage point change) compared to hospitals (5.2 percentage point change). Use of oxytocin for PPH prevention rose by 37.1 percentage points in health centers and dispensaries but remained largely the same in hospitals, where the baseline was higher. There was substantial improvement in the timely provision of uterotonics (within 3 min of birth) across all facilities (p = 0.003). Availability of oxytocin, which was lower in health centers and dispensaries than hospitals at baseline, rose from 73 to 94% of all facilities. CONCLUSION: The quality of PPH prevention increased substantially in facilities that implemented competency-based training and quality improvement interventions, with the most dramatic improvement seen at lower-level facilities. As Tanzania continues with efforts to increase facility births, it is imperative that the quality of care also be improved by promoting use of up-to-date guidelines and ensuring regular training and mentoring for health care providers so that they adhere to the guidelines for care of women during labor. These measures can reduce maternal and newborn mortality.


Asunto(s)
Parto Obstétrico/efectos adversos , Instituciones de Salud/estadística & datos numéricos , Tercer Periodo del Trabajo de Parto , Partería/métodos , Hemorragia Posparto/prevención & control , Estudios Transversales , Parto Obstétrico/métodos , Femenino , Accesibilidad a los Servicios de Salud/estadística & datos numéricos , Humanos , Servicios de Salud Materna/estadística & datos numéricos , Oxitócicos/uso terapéutico , Embarazo , Tanzanía
19.
BMC Pregnancy Childbirth ; 18(1): 47, 2018 02 06.
Artículo en Inglés | MEDLINE | ID: mdl-29409456

RESUMEN

BACKGROUND: Active management of the third stage of labor (AMTSL) describes interventions with the common goal to prevent postpartum hemorrhage (PPH). In low- and middle-income countries, implementation of AMTSL is hampered by shortage of skilled birth attendants and a high percentage of home deliveries. Task shifting of specific AMTSL components to unskilled birth attendants or self-administration could be a strategy to increase access to potentially life-saving interventions. This study was designed to evaluate the effect, acceptance and safety of task shifting of specific aspects of AMTSL to unskilled birth attendants. METHODS: A systematic search was conducted in five databases in September 2015 to identify intervention studies of AMTSL implemented by unskilled birth attendants or pregnant women themselves. Quality of studies was evaluated with an adapted Cochrane Collaboration assessment tool. RESULTS: Of 2469 studies screened, 21 were included. All studies assessed implementation of uterotonics (misoprostol tablets or oxytocin injections), administered by community health workers (CHWs), auxiliary midwives, traditional birth attendants (TBAs) or self-administration at antenatal (home) visits or delivery. Task shifting for none of the other AMTSL components was reported. Task shifting of provision of uterotonics reduced the risk of PPH (RR 0.16 to 1) compared to standard care (13 studies, n = 15.197). The correct dose and timing was reported for 83.4 to 99.8% (5 studies, n = 6083) and 63 to 100% (9 studies, n = 8378) women respectively. Uterotonics were recommended to others by 80 to 99.7% (7 studies, n = 6445); 80 to 99.4% (5 studies, n = 2677) would use the drug at next delivery. Willingness to pay for uterotonics varied from 54.6 to 100% (7 studies, n = 6090). CONCLUSION: Task shifting of AMTSL has thus far been evaluated for administration of uterotonics (misoprostol tablets and oxytocin injected by CHWs and auxiliary midwives) and resulted in reduction of PPH, high rates of appropriate use and satisfaction among users. In order to increase AMTSL coverage in low-staffed health facilities, task shifting of uterine massage or postpartum tonus assessment to unskilled attendants or delivered women could be considered. Task shifting of controlled cord traction is currently not recommended.


Asunto(s)
Parto Obstétrico/enfermería , Tercer Periodo del Trabajo de Parto , Servicios de Salud Materna , Aceptación de la Atención de Salud/estadística & datos numéricos , Hemorragia Posparto/prevención & control , Adulto , Agentes Comunitarios de Salud , Femenino , Humanos , Partería , Oxitócicos/administración & dosificación , Embarazo , Adulto Joven
20.
BMC Pregnancy Childbirth ; 17(1): 292, 2017 Sep 07.
Artículo en Inglés | MEDLINE | ID: mdl-28882109

RESUMEN

BACKGROUND: Active management of third stage of labor played a great role to prevent child birth related hemorrhage. However, maternal morbidity and mortality related to hemorrhage is high due to lack of knowledge and skill of obstetric care providers 'on active management of third stage of labor. Our study was aimed to assess knowledge, practice and associated factors of obstetric care providers (Midwives, Nurses and Health officers) on active management of third stage of labor in Sidama Zone, South Ethiopia. METHODS: An institution based cross sectional study design was conducted from December 1-30 /2015 among midwives, nurses and health officers. Simple random sampling technique was used to get the total of 528 participants. Data entry was done using EPI Info 3.5.1 and exported to SPSS version 20.0 software package for analysis. The presence of association between independent and dependent variables was assessed using odds ratio with 97% confidence interval by applying logistic regression model. RESULTS: Of the 528 obstetric care providers 37.7% and 32.8% were knowledgeable and skilled to manage third stage of labor respectively. After controlling for possible confounding factors, the result showed that pre/in service training, being midwife and graduation year were found to be the major predictors of proper active management of third stage of labor. CONCLUSION: The knowledge and practice of obstetric care providers towards active management of third stage of labor can be improved with appropriate interventions like in-service trainings. This study also clearly showed that the level of knowledge and practice of obstetric care providers to wards active management of third stage of labor needs immediate attention of Universities and health science colleges better to revise their obstetrics course contents, health institutions and zonal health bureau should arrange trainings for their obstetrics care providers to enhance skill.


Asunto(s)
Competencia Clínica , Conocimientos, Actitudes y Práctica en Salud , Tercer Periodo del Trabajo de Parto , Partería/normas , Enfermería Obstétrica/normas , Adulto , Estudios Transversales , Etiopía , Femenino , Humanos , Masculino , Persona de Mediana Edad , Partería/educación , Enfermería Obstétrica/educación , Embarazo , Encuestas y Cuestionarios , Adulto Joven
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