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Zangen NR, Shoham Vardi I, Weintraub AY, Yaniv Salem S. New definitions, old complications: The association between duration of transition from latent to active labor and adverse obstetrical outcomes. Int J Gynaecol Obstet 2024; 166:790-795. [PMID: 38287710 DOI: 10.1002/ijgo.15397] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2023] [Revised: 01/09/2024] [Accepted: 01/13/2024] [Indexed: 01/31/2024]
Abstract
OBJECTIVE To explore the relationship between the duration of transition from latent to active labor and various obstetric, maternal, fetal, and neonatal outcomes. METHODS A retrospective cohort study was conducted on term, singleton deliveries at Soroka University Medical Center from 2013 to 2018. Data were extracted from electronic medical records. The exposure variable was defined as prolonged transition, which was itself defined as the upper 10th centile of dilation duration from 4 to 6 cm. Clinical and demographic characteristics were compared using χ2 test. Multivariate logistic regression was used to estimate the contribution of a prolonged transition with each adverse outcome adjusting for potential confounders. RESULTS In all, 12 104 deliveries met the inclusion criteria. The mean ± standard deviation of duration of dilation from 4 to 6 cm was 03:07:58 ± 03:03:42 (hours:minutes:seconds). Progress curves varied significantly among patients with different obstetrical and demographic characteristics. Prolonged transition was significantly linked to an increased risk of cesarean delivery (adjusted odds raito 2.607, 95% confidence interval 2.171-3.130, area under the curve 0.689) and higher rates of maternal and neonatal morbidity. CONCLUSIONS Patients experiencing transition phases exceeding the 90th centile faced an elevated risk of cesarean delivery and postpartum complications. Future studies should focus on interventions during the transition phase to improve pregnancy outcomes and enhance patient safety.
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Affiliation(s)
- Noa R Zangen
- Department of Obstetrics and Gynecology, Soroka University Medical Center, Beer Sheva, Israel
| | - Ilana Shoham Vardi
- School of Public Health, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer Sheva, Israel
| | - Adi Y Weintraub
- Department of Obstetrics and Gynecology, Soroka University Medical Center, Beer Sheva, Israel
| | - Shimrit Yaniv Salem
- Department of Obstetrics and Gynecology, Soroka University Medical Center, Beer Sheva, Israel
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Chai Y, Wang H, Tang D, Wu Y, Sun Z, Zeng Y, Zhang B, Niu B, Dong X. Changes of serum cortisol during pregnancy and labor initiation: an onsite cross-sectional study. Front Endocrinol (Lausanne) 2024; 15:1379693. [PMID: 38808114 PMCID: PMC11130462 DOI: 10.3389/fendo.2024.1379693] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Accepted: 04/15/2024] [Indexed: 05/30/2024] Open
Abstract
Background Increased maternal cortisol secretion has been observed during pregnancy and labor. However, due to the limitations in diagnostic methods, the dynamic change of cortisol during the short period between threatened labor and labor is unknown. In this study, we aim to evaluate the changes in serum cortisol during late pregnancy and full-term labor initiation, verifying if cortisol could serve as a biomarker for the diagnosis of labor initiation from threatened labor. Methods This cross-sectional onsite study involved 564 participants of 6 different gestational stages (C: Control; T1: Trimester 1; T3: Trimester 3; E: expectant; TL: threatened labor; L: labor), all patients in the E, TL, and L groups were at full term. The serum cortisol concentration was quantified with a point-of-care test (POCT), and the gestation, age, parity, and BMI of participants were documented. Morning serum cortisol was collected between 8:00 and 10:00 a.m., except for the TL and L group women who were tested upon arrival or during latent labor. With cortisol levels or all five variables, L was distinguished from TL using machine learning algorithms. Results Significant elevation of cortisol concentration was observed between T1 and T3, or TL and L group (P< 0.001). Women belonging to the E and TL group showed similar gestation week and cortisol levels. Diagnosis of labor initiation using cortisol levels (cutoff = 21.46 μg/dL) yielded sensitivity, specificity, and AUC of 86.50%, 88.60%, and 0.934. With additional variables, a higher specificity (89.29%) was achieved. The diagnostic accuracy of all methods ranged from 85.93% to 87.90%. Conclusion Serum cortisol could serve as a potential biomarker for diagnosis of L form TL. The rapid onsite detection of serum cortisol with POCT could facilitate medical decision-making for admission and special treatments, either as an additional parameter or when other technical platforms are not available.
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Affiliation(s)
- Yujuan Chai
- Department of Biomedical Engineering, School of Medicine, Shenzhen University, Shenzhen, Guangdong, China
| | - Hairong Wang
- Greater Bay Area International Institute for Innovation, Shenzhen University, Shenzhen, Guangdong, China
| | - Daiyu Tang
- Department of Obstetrics and Gynecology, Guizhou Provincial People’s Hospital, Guiyang, Guizhou, China
| | - Yi Wu
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Zhonghao Sun
- Department of Biomedical Engineering, School of Medicine, Shenzhen University, Shenzhen, Guangdong, China
| | - Yuping Zeng
- Department of Biomedical Engineering, School of Medicine, Shenzhen University, Shenzhen, Guangdong, China
| | - Binmao Zhang
- Department of Biomedical Engineering, School of Medicine, Shenzhen University, Shenzhen, Guangdong, China
| | - Ben Niu
- Department of Management, Shenzhen University, Shenzhen, Guangdong, China
| | - Xiaojing Dong
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
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Barake C, Seagraves E, Huang JC, Baraki D, Donaldson T, Abuhamad A, Kawakita T. Effect of Calcium Channel Blocker on Labor Curve in Pregnant Individuals with Chronic Hypertension. Am J Perinatol 2024; 41:e1996-e2003. [PMID: 37207673 DOI: 10.1055/a-2096-2338] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
OBJECTIVE This study aimed to compare the labor progress between individuals who received calcium channel blocker (CCB) and those who did not receive CCB during labor. STUDY DESIGN This was a secondary analysis of a retrospective cohort study of individuals with chronic hypertension who underwent vaginal delivery at a tertiary care center from January 2010 to December 2020. We excluded individuals with prior uterine surgeries and a 5-minute Apgar score of less than 5. We used a repeated-measures regression with a third-order polynomial function to compare the average labor curves according to antihypertensive medication. Estimates of the median (5th-95th percentile) traverse times between two dilations were computed using interval-censored regression. RESULTS Of 285 individuals with chronic hypertension, 88 (30.9%) received CCB. Individuals who received CCB during labor compared with those who did not were more likely to deliver at earlier gestational age and to have pregestational diabetes and superimposed preeclampsia (p < 0.01). The progress of labor in the latent phase was not found to be significantly different between both groups (median: 11.51 vs. 8.74 hours; p = 0.08). However, after stratification by parity, nulliparous individuals who received CCB during labor were more likely to have a longer latent phase of labor (median: 14.4 vs. 8.5 hours; p = 0.03) CONCLUSION: A calcium channel blocker may slow the latent phase of labor in individuals with chronic hypertension. Aiming to minimize intrapartum iatrogenic interventions, allowing adequate time for pregnant individuals during the latent phase of labor is especially important if individuals are on a calcium channel blocker. KEY POINTS · Calcium channel blockers seem to be associated with a longer latent phase of labor.. · The effect of calcium channel blocker on labor was not observed in multiparous individuals.. · Allowing adequate labor time for individuals taking calcium channel blocker is important..
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Affiliation(s)
- Carole Barake
- Department of Obstetrics and Gynecology, University of Texas Medical Branch, Galveston, Texas
| | - Elizabeth Seagraves
- Department of Obstetrics and Gynecology, Eastern Virginia Medical School, Norfolk, Virginia
| | - Jim C Huang
- Department of Business Management, National Sun Yat-Sen University, Kaohsiung, Taiwan
| | - Dana Baraki
- Department of Obstetrics and Gynecology, Cleveland Clinic, Cleveland, Ohio
| | - Thomas Donaldson
- Department of Obstetrics and Gynecology, Temple University Hospital, Philadelphia, Pennsylvania
| | - Alfred Abuhamad
- Department of Obstetrics and Gynecology, Eastern Virginia Medical School, Norfolk, Virginia
| | - Tetsuya Kawakita
- Department of Obstetrics and Gynecology, Eastern Virginia Medical School, Norfolk, Virginia
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First and Second Stage Labor Management: ACOG Clinical Practice Guideline No. 8. Obstet Gynecol 2024; 143:144-162. [PMID: 38096556 DOI: 10.1097/aog.0000000000005447] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2023]
Abstract
PURPOSE The purpose of this document is to define labor and labor arrest and provide recommendations for the management of dystocia in the first and second stage of labor and labor arrest. TARGET POPULATION Pregnant individuals in the first or second stage of labor. METHODS This guideline was developed using an a priori protocol in conjunction with a writing team consisting of one maternal-fetal medicine subspecialist appointed by the ACOG Committee on Clinical Practice Guidelines-Obstetrics and two external subject matter experts. ACOG medical librarians completed a comprehensive literature search for primary literature within Cochrane Library, Cochrane Collaboration Registry of Controlled Trials, EMBASE, PubMed, and MEDLINE. Studies that moved forward to the full-text screening stage were assessed by the writing team based on standardized inclusion and exclusion criteria. Included studies underwent quality assessment, and a modified GRADE (Grading of Recommendations Assessment, Development, and Evaluation) evidence-to-decision framework was applied to interpret and translate the evidence into recommendation statements. RECOMMENDATIONS This Clinical Practice Guideline includes definitions of labor and labor arrest, along with recommendations for the management of dystocia in the first and second stages of labor and labor arrest. Recommendations are classified by strength and evidence quality. Ungraded Good Practice Points are included to provide guidance when a formal recommendation could not be made because of inadequate or nonexistent evidence.
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Lundborg L, Åberg K, Sandström A, Liu X, Tilden EL, Bolk J, Ladfors LV, Stephansson O, Ahlberg M. First stage of labour duration and associated risk of adverse neonatal outcomes. Sci Rep 2023; 13:12569. [PMID: 37532775 PMCID: PMC10397187 DOI: 10.1038/s41598-023-39480-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Accepted: 07/26/2023] [Indexed: 08/04/2023] Open
Abstract
Prior evidence evaluating the benefits and harms of expectant labour duration during active first stage is inconclusive regarding potential consequences for the neonate. Population-based cohort study in Stockholm-Gotland region, Sweden, including 46,040 women (Robson 1), between October 1st, 2008 and June 15th, 2020. Modified Poisson regression was used for the association between active first stage of labour duration and adverse neonatal outcomes. 94.2% experienced a delivery with normal neonatal outcomes. Absolute risk for severe outcomes increased from 1.9 to 3.0%, moderate outcomes increased from 2.8 to 6.2% (> 10.1 h). Compared to the reference, (< 5.1 h; median), the adjusted relative risk (aRR) of severe neonatal outcome significantly increased beyond 10.1 h (> 90th percentile) (aRR 1.53, 95% CI 1.26, 1.87), for moderate neonatal outcome the aRR began to slowly increase beyond 5.1 h (≥ 50 percentile; aRR 1.40, 95% CI 1.24, 1.58). Mediation analysis indicate that most of the association was due to a longer active first stage of labour, 13% (severe neonatal outcomes) and 20% (moderate neonatal outcomes) of the risk was mediated (indirect effect) by longer second stage of labour duration. We report an association between increasing active first stage duration and increased risk of adverse neonatal outcomes. We did not observe a clear labour duration risk threshold.
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Affiliation(s)
- Louise Lundborg
- Clinical Epidemiology Division, Department of Medicine, Solna, Karolinska Institutet, Stockholm, Sweden.
| | - Katarina Åberg
- Clinical Epidemiology Division, Department of Medicine, Solna, Karolinska Institutet, Stockholm, Sweden
| | - Anna Sandström
- Clinical Epidemiology Division, Department of Medicine, Solna, Karolinska Institutet, Stockholm, Sweden
- Division of Obstetrics, Department of Women's Health, Karolinska University Hospital, Stockholm, Sweden
| | - Xingrong Liu
- Clinical Epidemiology Division, Department of Medicine, Solna, Karolinska Institutet, Stockholm, Sweden
| | - Ellen L Tilden
- Department of Nurse-Midwifery, Oregon Health & Science University School of Nursing, Portland, OR, USA
- Department of Obstetrics and Gynecology, Oregon Health & Science University School of Medicine, Portland, OR, USA
| | - Jenny Bolk
- Clinical Epidemiology Division, Department of Medicine, Solna, Karolinska Institutet, Stockholm, Sweden
- Department of Clinical Science and Education Södersjukhuset, Karolinska Institutet, Stockholm, Sweden
- Sachs' Children and Youth Hospital, South General Hospital, Stockholm, Sweden
| | - Linnea V Ladfors
- Clinical Epidemiology Division, Department of Medicine, Solna, Karolinska Institutet, Stockholm, Sweden
| | - Olof Stephansson
- Clinical Epidemiology Division, Department of Medicine, Solna, Karolinska Institutet, Stockholm, Sweden
- Division of Obstetrics, Department of Women's Health, Karolinska University Hospital, Stockholm, Sweden
| | - Mia Ahlberg
- Clinical Epidemiology Division, Department of Medicine, Solna, Karolinska Institutet, Stockholm, Sweden
- Division of Obstetrics, Department of Women's Health, Karolinska University Hospital, Stockholm, Sweden
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Tilden EL, Caughey AB, Ahlberg M, Lundborg L, Wikström AK, Liu X, Ng K, Lapidus J, Sandström A. Latent phase duration and associated outcomes: a contemporary, population-based observational study. Am J Obstet Gynecol 2023; 228:S1025-S1036.e9. [PMID: 37164487 PMCID: PMC10172685 DOI: 10.1016/j.ajog.2022.10.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Revised: 10/05/2022] [Accepted: 10/05/2022] [Indexed: 03/17/2023]
Abstract
BACKGROUND Little is known about the latent phase of labor, including whether its duration influences subsequent labor processes or birth outcomes. OBJECTIVE This study aimed to describe the duration of the latent phase of labor from self-report of the onset of painful contractions to a cervical dilation of 5 cm in a large, Swedish population and evaluate the association between the duration of the latent phase of labor and perinatal processes and outcomes that occurred during the active phase of labor, second stage of labor, birth and immediately after delivery, stratified by parity. STUDY DESIGN This was a population-based cohort study of 67,267 pregnancies with deliveries between 2008 and 2020 in the Stockholm-Gotland Regions, Sweden. Nulliparous and parous women without a history of cesarean delivery in spontaneous labor with a term (≥37 weeks of gestation), singleton, live, and vertex fetus without major malformations were included. Imputation was used if the notation of the end of the latent phase of labor (ie, cervical dilation of 5 cm) was missing in the partograph. Multivariable logistic regression was used to estimate the association with adjusted odds ratios and 95% confidence intervals, controlling for potential covariates. RESULTS Including the time from painful contraction onset to a cervical dilation of 5 cm, the median durations of the latent phase of labor were 16.0 (interquartile range, 10.0-26.6) hours for nulliparous women and 9.4 (interquartile range, 5.9-15.3) hours for multiparous women. The durations of the latent phase of labor beyond the median were associated with increased odds of labor dystocia diagnosis during the first stage active phase or second stage of labor and interventions commonly associated with dystocia (amniotomy, oxytocin augmentation, epidural, and cesarean delivery). The duration of the latent phase of labor of ≥90th percentile vs less than the median in nulliparous women demonstrated an increased risk of adverse neonatal outcomes (Apgar score of <7 at 5 minutes and neonatal intensive care unit admission), chorioamnionitis, and fetal occiput posterior. In multiparous women, longer duration of the latent phase of labor was associated with an increased risk of neonatal intensive care unit admission and chorioamnionitis but was not associated with an Apgar score of <7 at 5 minutes. The duration of the latent phase of labor was not associated with additional markers of maternal risk. CONCLUSION The duration of the latent phase of labor in nulliparous women was longer than that of multiparous women at each point of distribution. A longer duration of the latent phase of labor was associated with more frequent dystocia diagnoses and related interventions during the first stage active phase or second stage of labor, including cesarean delivery, nulliparous fetal occiput posterior position, chorioamnionitis, and markers of neonatal morbidity. More research is needed to identify potential mediating paths between the duration of the latent phase of labor and neonatal morbidity.
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Affiliation(s)
- Ellen L Tilden
- Department of Nurse-Midwifery, Oregon Health & Science University School of Nursing, Portland, OR; Department of Obstetrics and Gynecology, Oregon Health & Science University, Portland, OR.
| | - Aaron B Caughey
- Department of Nurse-Midwifery, Oregon Health & Science University School of Nursing, Portland, OR; Department of Obstetrics and Gynecology, Oregon Health & Science University, Portland, OR
| | - Mia Ahlberg
- Clinical Epidemiology Division, Department of Medicine, Solna, Karolinska Institutet, Stockholm, Sweden; Division of Obstetrics, Department of Women's Health, Karolinska University Hospital, Stockholm, Sweden
| | - Louise Lundborg
- Clinical Epidemiology Division, Department of Medicine, Solna, Karolinska Institutet, Stockholm, Sweden
| | - Anna-Karin Wikström
- Division of Obstetrics, Department of Women's Health, Karolinska University Hospital, Stockholm, Sweden; Department of Women's and Children's Health, Uppsala University, Uppsala, Sweden
| | - Xingrong Liu
- Clinical Epidemiology Division, Department of Medicine, Solna, Karolinska Institutet, Stockholm, Sweden
| | - Kevin Ng
- School of Public Health, Oregon Health & Science University and Portland State University, Portland, OR
| | - Jodi Lapidus
- School of Public Health, Oregon Health & Science University and Portland State University, Portland, OR
| | - Anna Sandström
- Department of Obstetrics and Gynecology, Oregon Health & Science University, Portland, OR; Clinical Epidemiology Division, Department of Medicine, Solna, Karolinska Institutet, Stockholm, Sweden; Division of Obstetrics, Department of Women's Health, Karolinska University Hospital, Stockholm, Sweden
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Kjerulff KH, Attanasio LB, Vanderlaan J, Sznajder KK. Timing of hospital admission at first childbirth: A prospective cohort study. PLoS One 2023; 18:e0281707. [PMID: 36795737 PMCID: PMC9934383 DOI: 10.1371/journal.pone.0281707] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Accepted: 01/30/2023] [Indexed: 02/17/2023] Open
Abstract
BACKGROUND AND AIMS It is difficult for women in labor to determine when best to present for hospital admission, particularly at first childbirth. While it is often recommended that women labor at home until their contractions have become regular and ≤ 5-minutes apart, little research has investigated the utility of this recommendation. This study investigated the relationship between timing of hospital admission, in terms of whether women's labor contractions had become regular and ≤ 5-minutes apart before admission, and labor progress. METHODS This was a cohort study of 1,656 primiparous women aged 18-35 years with singleton pregnancies who began labor spontaneously at home and delivered at 52 hospitals in Pennsylvania, USA. Women who were admitted before their contractions had become regular and ≤ 5-minutes apart (early admits) were compared to those who were admitted after (later admits). Multivariable logistic regression models were used to assess associations between timing of hospital admission and active labor status on admission (cervical dilation 6-10 cm), oxytocin augmentation, epidural analgesia and cesarean birth. RESULTS Nearly two-thirds of the participants (65.3%) were later admits. These women had labored for a longer time period before admission (median, interquartile range [IQR] 5 hours (3-12 hours)) than the early admits (median, (IQR) 2 hours (1-8 hours), p < 0.001); were more likely to be in active labor on admission (adjusted OR [aOR] 3.78, 95% CI 2.47-5.81); and were less likely to experience labor augmentation with oxytocin (aOR 0.44, 95% CI 0.35-0.55); epidural analgesia (aOR 0.52, 95% CI 0.38-0.72); and cesarean birth (aOR 0.66, 95% CI 0.50-0.88). CONCLUSIONS Among primiparous women, those who labor at home until their contractions have become regular and ≤ 5-minutes apart are more likely to be in active labor on hospital admission and less likely to experience oxytocin augmentation, epidural analgesia and cesarean birth.
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Affiliation(s)
- Kristen H. Kjerulff
- Department of Public Health Sciences, College of Medicine, Penn State University, Hershey, Pennsylvania, United States of America
- Department of Obstetrics and Gynecology, Penn State Milton S. Hershey Medical Center, Hershey, Pennsylvania, United States of America
- * E-mail:
| | - Laura B. Attanasio
- School of Public Health and Health Sciences, University of Massachusetts Amherst, Amherst, Massachusetts, United States of America
| | - Jennifer Vanderlaan
- School of Nursing, University of Nevada, Las Vegas, Nevada, United States of America
| | - Kristin K. Sznajder
- Department of Public Health Sciences, College of Medicine, Penn State University, Hershey, Pennsylvania, United States of America
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Seravalli V, Strambi N, Castellana E, Salamina MA, Bettini C, Di Tommaso M. Hospital Admission in the Latent versus the Active Phase of Labor: Comparison of Perinatal Outcomes. CHILDREN (BASEL, SWITZERLAND) 2022; 9:924. [PMID: 35740861 PMCID: PMC9221807 DOI: 10.3390/children9060924] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/28/2022] [Revised: 06/13/2022] [Accepted: 06/18/2022] [Indexed: 11/29/2022]
Abstract
Background: Admission in the latent phase of labor has been associated with increased risk of obstetric interventions compared to admission in the active phase. We aimed to investigate the relationship between labor phase at admission and obstetric and neonatal outcomes. Methods: A retrospective cohort study was conducted on 1005 women with uncomplicated singleton pregnancy admitted for spontaneous labor. Cesarean section rate and other perinatal outcomes were compared between women admitted in the latent phase and those admitted in the active phase. Results: Admission occurred in the active phase of labor for 331 women (32.9%) and in the latent phase for 674 (67.1%). Admission in the latent phase was more frequent in nulliparous than in multiparous (p < 0.01) and for Italian patients compared to foreigners. The incidence of caesarean section was similar between groups. Admission in the latent phase increased the likelihood of epidural analgesia (OR 3.47, 95% CI 1.96−6.14, in nulliparous, and OR 2.58, 95% CI 1.37−4.84, in multiparous) and increased the rate of augmentation of labor with oxytocin in multiparous (OR 2.87, 95% CI 1.05−7.85), without difference in neonatal outcomes. Conclusions: Admission in the latent phase is associated with more frequent use of epidural analgesia, without an increase in cesarean section or adverse neonatal outcomes.
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Lundborg L, Åberg K, Sandström A, Liu X, Tilden E, Stephansson O, Ahlberg M. Association between first and second stage of labour duration and mode of delivery: A population-based cohort study. Paediatr Perinat Epidemiol 2022; 36:358-367. [PMID: 34964511 DOI: 10.1111/ppe.12848] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Revised: 11/23/2021] [Accepted: 11/28/2021] [Indexed: 01/29/2023]
Abstract
BACKGROUND Active first stage of labour duration can widely vary between women. However, the nature of the relationship between the active first stage and second stage of labour duration is sparsely studied. OBJECTIVES To determine whether active first stage of labour duration (i) influences second stage of labour duration; and (ii) is associated with mode of delivery. METHODS A population-based cohort study of 13,379 women primiparous women, with spontaneous start in Stockholm-Gotland Region, Sweden, between 2008 and 2014. Duration of the active first stage of labour was examined in relation to second-stage duration using univariate and multivariable quantile regressions, with the first quartile (first stage duration) as the reference. Nonlinearity of associations was tested by restricted cubic splines. Association between active first-stage duration with mode of delivery was estimated using a multinomial logistic regression based on adjusted odds ratios. RESULTS Longer active first stage of labour duration was linearly associated with longer second stage of labour duration until approximately 12 h of active first stage of labour duration. After 12 h, a non-linear trend is seen, demonstrated by a plateau in the second-stage duration. In addition, longer active first stage of labour duration was associated with increased occurrence of operative vaginal delivery (adjusted odds ratio 3.36, 95% confidence interval [CI] 2.89, 3.89) and caesarean delivery (adjusted odds ratio 4.75, 95% CI 3.85, 5.80). CONCLUSIONS Among primiparous women with spontaneous onset of labour, longer active first stage of labour duration was associated with both longer second stage of labour duration and higher odds of operative delivery. This study contributes with findings, which may inform future discussions regarding how to properly account for second-stage duration, with applications in obstetric and perinatal epidemiology.
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Affiliation(s)
- Louise Lundborg
- Department of Medicine, Clinical Epidemiology Division, Solna, Karolinska Institutet, Stockholm, Sweden
| | - Katarina Åberg
- Department of Medicine, Clinical Epidemiology Division, Solna, Karolinska Institutet, Stockholm, Sweden
| | - Anna Sandström
- Department of Medicine, Clinical Epidemiology Division, Solna, Karolinska Institutet, Stockholm, Sweden.,Department of Women´s Health, Division of Obstetrics and Gynecology, Karolinska University Hospital, Stockholm, Sweden
| | - Xingrong Liu
- Department of Medicine, Clinical Epidemiology Division, Solna, Karolinska Institutet, Stockholm, Sweden
| | - Ellen Tilden
- Department of Nurse-Midwifery, Oregon Health & Science University School of Nursing, Portland, OR, USA.,Department of Obstetrics and Gynecology, Oregon Health & Science University School of Medicine, Portland, OR, USA
| | - Olof Stephansson
- Department of Medicine, Clinical Epidemiology Division, Solna, Karolinska Institutet, Stockholm, Sweden.,Department of Women´s Health, Division of Obstetrics and Gynecology, Karolinska University Hospital, Stockholm, Sweden
| | - Mia Ahlberg
- Department of Medicine, Clinical Epidemiology Division, Solna, Karolinska Institutet, Stockholm, Sweden.,Department of Women´s Health, Division of Obstetrics and Gynecology, Karolinska University Hospital, Stockholm, Sweden
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10
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Girault A, Le Ray C. Understanding the association between first and second stages of labour duration and its impact on mode of delivery. Paediatr Perinat Epidemiol 2022; 36:368-369. [PMID: 35437810 DOI: 10.1111/ppe.12885] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Accepted: 04/04/2022] [Indexed: 11/27/2022]
Affiliation(s)
- Aude Girault
- Hôpital Cochin Port Royal, Maternité Port Royal, Assistance Publique-Hôpitaux de Paris, Université de Paris, Paris, France.,INSERM UMR 1153, Obstetrical, Perinatal and Pediatric Epidemiology Research Team (Epopé), Center for Epidemiology and Statistics, FHU PREMA, Université de Paris, Paris, France
| | - Camille Le Ray
- Hôpital Cochin Port Royal, Maternité Port Royal, Assistance Publique-Hôpitaux de Paris, Université de Paris, Paris, France.,INSERM UMR 1153, Obstetrical, Perinatal and Pediatric Epidemiology Research Team (Epopé), Center for Epidemiology and Statistics, FHU PREMA, Université de Paris, Paris, France
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Gomez-Lopez N, Romero R, Galaz J, Bhatti G, Done B, Miller D, Ghita C, Motomura K, Farias-Jofre M, Jung E, Pique-Regi R, Hassan SS, Chaiworapongsa T, Tarca AL. Transcriptome changes in maternal peripheral blood during term parturition mimic perturbations preceding spontaneous Preterm birth†. Biol Reprod 2021; 106:185-199. [PMID: 34686873 DOI: 10.1093/biolre/ioab197] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Revised: 09/30/2021] [Accepted: 10/20/2021] [Indexed: 11/14/2022] Open
Abstract
The complex physiologic process of parturition includes the onset of labor, which requires the orchestrated stimulation of a common pathway involving uterine contractility, cervical ripening, and chorioamniotic membrane activation. However, the labor-specific processes taking place in these tissues have limited use as predictive biomarkers unless they can be probed in non-invasive samples, such as the peripheral blood. Herein, we utilized a transcriptomic dataset to assess labor-specific changes in the peripheral blood of women who delivered at term. We identified a set of genes that were differentially expressed with labor and enriched for immunological processes, and these gene expression changes were strongly correlated with results from prior studies, providing in silico validation of our findings. We then identified significant correlations between labor-specific transcriptomic changes in the maternal circulation and those reported in the chorioamniotic membranes, myometrium, and cervix of women at term, demonstrating that tissue-specific labor signatures are partly mirrored in the peripheral blood. Last, we demonstrated a significant overlap between the peripheral blood transcriptomic changes in term parturition and those observed in asymptomatic women prior to the diagnosis of preterm prelabor rupture of membranes who delivered preterm. Collectively, we provide evidence that the normal process of labor at term is characterized by a unique immunological expression signature, which may serve as a useful tool for assessing labor status and potentially identifying women at risk for preterm birth.
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Affiliation(s)
- Nardhy Gomez-Lopez
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services (NICHD/NIH/DHHS); Bethesda, MD, and Detroit, MI, USA.,Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI, USA.,Department of Biochemistry, Microbiology and Immunology, Wayne State University School of Medicine, Detroit, MI, USA
| | - Roberto Romero
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services (NICHD/NIH/DHHS); Bethesda, MD, and Detroit, MI, USA.,Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI, USA.,Department of Obstetrics and Gynecology, University of Michigan, Ann Arbor, MI, USA.,Department of Epidemiology and Biostatistics, Michigan State University, East Lansing, MI, USA.,Center for Molecular Medicine and Genetics, Wayne State University, Detroit, MI, USA.,Detroit Medical Center, Detroit, MI, USA.,Department of Computer Science, Wayne State University College of Engineering, Detroit, MI, USA
| | - Jose Galaz
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services (NICHD/NIH/DHHS); Bethesda, MD, and Detroit, MI, USA.,Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI, USA
| | - Gaurav Bhatti
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services (NICHD/NIH/DHHS); Bethesda, MD, and Detroit, MI, USA.,Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI, USA
| | - Bogdan Done
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services (NICHD/NIH/DHHS); Bethesda, MD, and Detroit, MI, USA.,Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI, USA
| | - Derek Miller
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services (NICHD/NIH/DHHS); Bethesda, MD, and Detroit, MI, USA.,Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI, USA
| | - Corina Ghita
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services (NICHD/NIH/DHHS); Bethesda, MD, and Detroit, MI, USA
| | - Kenichiro Motomura
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services (NICHD/NIH/DHHS); Bethesda, MD, and Detroit, MI, USA.,Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI, USA
| | - Marcelo Farias-Jofre
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services (NICHD/NIH/DHHS); Bethesda, MD, and Detroit, MI, USA.,Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI, USA
| | - Eunjung Jung
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services (NICHD/NIH/DHHS); Bethesda, MD, and Detroit, MI, USA.,Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI, USA
| | - Roger Pique-Regi
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services (NICHD/NIH/DHHS); Bethesda, MD, and Detroit, MI, USA.,Center for Molecular Medicine and Genetics, Wayne State University, Detroit, MI, USA
| | - Sonia S Hassan
- Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI, USA
| | - Tinnakorn Chaiworapongsa
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services (NICHD/NIH/DHHS); Bethesda, MD, and Detroit, MI, USA.,Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI, USA
| | - Adi L Tarca
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services (NICHD/NIH/DHHS); Bethesda, MD, and Detroit, MI, USA.,Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI, USA.,Department of Computer Science, Wayne State University College of Engineering, Detroit, MI, USA
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12
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Girault A, Blondel B, Goffinet F, Le Ray C. Contemporary duration of spontaneous labor and association with maternal characteristics: A French national population-based study. Birth 2021; 48:86-95. [PMID: 33274503 DOI: 10.1111/birt.12518] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/12/2020] [Revised: 11/12/2020] [Accepted: 11/13/2020] [Indexed: 12/21/2022]
Abstract
BACKGROUND The objective of this study was to describe labor duration of women managed with current obstetric practices in a French national population-based cohort and to assess the association of age and BMI on this duration. METHODS All women in the French perinatal survey of 2016 with a singleton cephalic fetus, delivering at term after a spontaneous labor were included. Duration of labor was defined as time between admission to the labor ward and birth. Duration of total labor and first and second stage of labor were described. Then, duration of labor was estimated according to maternal age and BMI, using Kaplan-Meier's method and compared with the log-rank test after stratification on parity. Intrapartum cesarean birth was considered as a censoring event. Multivariable modeling was performed using Cox's proportional hazard's method. RESULTS Data of 3120 nulliparous and 4385 multiparous women were analyzed. Median labor duration was 6.1 hours ([5th; 95th percentile]) [1.4; 12.6] and 3.1 hours [0.3; 8.5] in nulliparous and multiparous women. Multivariable Cox analysis showed no independent association of maternal age and duration of labor. Nulliparous obese women had significantly lower odds of having a shorter labor than women with a BMI < 25 kg/m2 , HR: 0.75; 95% CI [0.64-0.88], but BMI was not associated with labor duration in multiparous women. CONCLUSIONS Our study provides important information for both women and care practitioners on what to expect when entering the labor ward. There appears to be little association between maternal characteristics and labor duration, with the exception of BMI in nulliparous women.
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Affiliation(s)
- Aude Girault
- INSERM, UMR 1153, Obstetrical, Perinatal and Pediatric Epidemiology Research Team (Epopé), Center for Epidemiology and Statistics Sorbonne Paris Cité, FHU PREMA, Université de Paris, Paris, France.,Department of Obstetrics, Cochin Port Royal Hospital, Assistance Publique-Hôpitaux de Paris, Hôpital Cochin Port Royal, Port Royal Maternity, Université de Paris, Paris, France
| | - Béatrice Blondel
- INSERM, UMR 1153, Obstetrical, Perinatal and Pediatric Epidemiology Research Team (Epopé), Center for Epidemiology and Statistics Sorbonne Paris Cité, FHU PREMA, Université de Paris, Paris, France
| | - François Goffinet
- INSERM, UMR 1153, Obstetrical, Perinatal and Pediatric Epidemiology Research Team (Epopé), Center for Epidemiology and Statistics Sorbonne Paris Cité, FHU PREMA, Université de Paris, Paris, France.,Department of Obstetrics, Cochin Port Royal Hospital, Assistance Publique-Hôpitaux de Paris, Hôpital Cochin Port Royal, Port Royal Maternity, Université de Paris, Paris, France
| | - Camille Le Ray
- INSERM, UMR 1153, Obstetrical, Perinatal and Pediatric Epidemiology Research Team (Epopé), Center for Epidemiology and Statistics Sorbonne Paris Cité, FHU PREMA, Université de Paris, Paris, France.,Department of Obstetrics, Cochin Port Royal Hospital, Assistance Publique-Hôpitaux de Paris, Hôpital Cochin Port Royal, Port Royal Maternity, Université de Paris, Paris, France
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13
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Abstract
Cervical ripening and induction and augmentation of labor are common procedures in labor and birth units. The potential risks and benefits for the procedure should be explained to women so that they can make informed decisions. Clinicians should be knowledgeable about the methods and medications used and be skilled in maternal-fetal assessment. Adequate nurse staffing is required to monitor the mother and fetus to promote the best possible outcomes. This practice monograph includes information on mechanical and pharmacologic methods for cervical ripening; labor induction and augmentation with oxytocin, a high alert drug; and nurse staffing levels and skills needed to provide safe and effective care during cervical ripening and labor induction and augmentation.
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14
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Tilden EL, Phillippi JC, Carlson N, Dissanayake M, Lee CS, Caughey AB, Snowden JM. The association between longer durations of the latent phase of labor and subsequent perinatal processes and outcomes among midwifery patients. Birth 2020; 47:418-429. [PMID: 32687226 PMCID: PMC7755745 DOI: 10.1111/birt.12494] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Revised: 04/28/2020] [Accepted: 05/17/2020] [Indexed: 11/28/2022]
Abstract
BACKGROUND/OBJECTIVE To evaluate the association between the duration of the latent phase of labor and subsequent processes and outcomes. METHODS Secondary analysis of prospectively collected data among 1,189 women with low-risk pregnancies and spontaneous labor. RESULTS Longer latent phase duration was associated with labor dystocia (eg, nulliparous ≥ mean [compared with < mean] aOR 3.95 [2.70-5.79]; multiparous ≥ mean [compared with < mean] aOR 5.45 [3.43-8.65]), interventions to ameliorate dystocia, and epidurals to cope or rest (eg, oxytocin augmentation: nulliparous > 80th% [compared with < 80th%] aOR 6.39 [4.04-10.12]; multiparous ≥ 80th% [compared with < 80th%] aOR 6.35 [3.79-10.64]). Longer latent phase duration was also associated with longer active phase and second stage. There were no associations between latent phase duration and risk for cesarean delivery or postpartum hemorrhage in a practice setting with relatively low rates of primary cesarean. Newborns born to multiparous women with latent phase of labor durations at and beyond the 80th% were more frequently admitted to the NICU (≥80th% [compared with < 80th%] aOR 2.7 [1.22-5.84]); however, two-thirds of these NICU admissions were likely for observation only. CONCLUSIONS Longer duration of the spontaneous latent phase of labor among women with low-risk pregnancies may signal longer total labor processes, leading to an increase in diagnosis of dystocia, interventions to manage dystocia, and epidural use. Apart from multiparous neonatal NICU admission, no other maternal or child morbidity outcomes were elevated with longer duration of the latent phase of labor.
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Affiliation(s)
- Ellen L. Tilden
- Department of Nurse-Midwifery, Oregon Health & Science University School of Nursing, Portland, Oregon, USA,Department of Obstetrics and Gynecology, Oregon Health & Science University, Portland, Oregon, USA
| | | | | | - Mekhala Dissanayake
- Department of Obstetrics and Gynecology, Oregon Health & Science University, Portland, Oregon, USA
| | | | - Aaron B. Caughey
- Department of Nurse-Midwifery, Oregon Health & Science University School of Nursing, Portland, Oregon, USA,Department of Obstetrics and Gynecology, Oregon Health & Science University, Portland, Oregon, USA
| | - Jonathan M. Snowden
- Department of Obstetrics and Gynecology, Oregon Health & Science University, Portland, Oregon, USA,School of Public Health, Oregon Health & Science University and Portland State University, Portland, Oregon, USA
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15
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Abstract
Cervical ripening and induction and augmentation of labor are common procedures in labor and birth units. The potential risks and benefits for the procedure should be explained to women so that they can make informed decisions. Clinicians should be knowledgeable about the methods and medications used and be skilled in maternal-fetal assessment. Adequate nurse staffing is required to monitor the mother and fetus to promote the best possible outcomes. This practice monograph includes information on mechanical and pharmacologic methods for cervical ripening; labor induction and augmentation with oxytocin, a high alert drug; and nurse staffing levels and skills needed to provide safe and effective care during cervical ripening and labor induction and augmentation.
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16
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Suarez S, Conde-Agudelo A, Borovac-Pinheiro A, Suarez-Rebling D, Eckardt M, Theron G, Burke TF. Uterine balloon tamponade for the treatment of postpartum hemorrhage: a systematic review and meta-analysis. Am J Obstet Gynecol 2020; 222:293.e1-293.e52. [PMID: 31917139 DOI: 10.1016/j.ajog.2019.11.1287] [Citation(s) in RCA: 63] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2019] [Revised: 11/12/2019] [Accepted: 11/18/2019] [Indexed: 02/07/2023]
Abstract
OBJECTIVE To assess the efficacy, effectiveness, and safety of uterine balloon tamponade for treating postpartum hemorrhage. STUDY DESIGN We searched electronic databases (from their inception to August 2019) and bibliographies. We included randomized controlled trials, nonrandomized studies, and case series that reported on the efficacy, effectiveness, and/or safety of uterine balloon tamponade in women with postpartum hemorrhage. The primary outcome was the success rate of uterine balloon tamponade for treating postpartum hemorrhage (number of uterine balloon tamponade success cases/total number of women treated with uterine balloon tamponade). For meta-analyses, we calculated pooled success rate for all studies, and relative risk with 95% confidence intervals for studies that included a comparative arm. RESULTS Ninety-one studies, including 4729 women, met inclusion criteria (6 randomized trials, 1 cluster randomized trial, 15 nonrandomized studies, and 69 case series). The overall pooled uterine balloon tamponade success rate was 85.9% (95% confidence interval, 83.9-87.9%). The highest success rates corresponded to uterine atony (87.1%) and placenta previa (86.8%), and the lowest to placenta accreta spectrum (66.7%) and retained products of conception (76.8%). The uterine balloon tamponade success rate was lower in cesarean deliveries (81.7%) than in vaginal deliveries (87.0%). A meta-analysis of 2 randomized trials that compared uterine balloon tamponade vs no uterine balloon tamponade in postpartum hemorrhage due to uterine atony after vaginal delivery showed no significant differences between the study groups in the risk of surgical interventions or maternal death (relative risk, 0.59; 95% confidence interval, 0.02-16.69). A meta-analysis of 2 nonrandomized before-and-after studies showed that introduction of uterine balloon tamponade in protocols for managing severe postpartum hemorrhage significantly decreased the use of arterial embolization (relative risk, 0.29; 95% confidence interval, 0.14-0.63). A nonrandomized cluster study reported that use of invasive procedures was significantly lower in the perinatal network that routinely used uterine balloon tamponade than that which did not use uterine balloon tamponade (3.0/1000 vs 5.1/1000; P < .01). A cluster randomized trial reported that the frequency of postpartum hemorrhage-related invasive procedures and/or maternal death was significantly higher after uterine balloon tamponade introduction than before uterine balloon tamponade introduction (11.6/10,000 vs 6.7/10,000; P = .04). Overall, the frequency of complications attributed to uterine balloon tamponade use was low (≤6.5%). CONCLUSION Uterine balloon tamponade has a high success rate for treating severe postpartum hemorrhage and appears to be safe. The evidence on uterine balloon tamponade efficacy and effectiveness from randomized and nonrandomized studies is conflicting, with experimental studies suggesting no beneficial effect, in contrast with observational studies. Further research is needed to determine the most effective programmatic and healthcare delivery strategies on uterine balloon tamponade introduction and use.
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Affiliation(s)
- Sebastian Suarez
- Division of Global Health Innovation, Department of Emergency Medicine, Massachusetts General Hospital, Boston, Massachusetts; Department of Internal Medicine, Boston Medical Center, Boston, Massachusetts.
| | - Agustin Conde-Agudelo
- Perinatology Research Branch, Eunice Kennedy Shriver National Institute of Child Health and Human Development/National Institutes of Health/Department of Health and Human Services, Bethesda, Maryland, and Detroit, Michigan
| | - Anderson Borovac-Pinheiro
- Division of Global Health Innovation, Department of Emergency Medicine, Massachusetts General Hospital, Boston, Massachusetts; Department of Obstetrics and Gynecology, School of Medical Sciences, University of Campinas, Campinas (SP), Brazil
| | - Daniela Suarez-Rebling
- Division of Global Health Innovation, Department of Emergency Medicine, Massachusetts General Hospital, Boston, Massachusetts
| | - Melody Eckardt
- Division of Global Health Innovation, Department of Emergency Medicine, Massachusetts General Hospital, Boston, Massachusetts
| | - Gerhard Theron
- Department of Obstetrics and Gynecology, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
| | - Thomas F Burke
- Division of Global Health Innovation, Department of Emergency Medicine, Massachusetts General Hospital, Boston, Massachusetts; Harvard Medical School, Boston, Massachusetts; Harvard T.H. Chan School of Public Health, Boston, Massachusetts
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17
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Sargunam PN, Bak LLM, Tan PC, Vallikkannu N, Noor Azmi MA, Zaidi SN, Win ST, Omar SZ. Induction of labor compared to expectant management in term nulliparas with a latent phase of labor of more than 8 hours: a randomized trial. BMC Pregnancy Childbirth 2019; 19:493. [PMID: 31829138 PMCID: PMC6907240 DOI: 10.1186/s12884-019-2602-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2019] [Accepted: 11/14/2019] [Indexed: 11/10/2022] Open
Abstract
Background Prolonged latent phase of labor is associated with adverse maternal and neonatal outcomes. Preliminary data indicate that labor induction for prolonged latent phase may reduce cesarean delivery. We performed a study powered to Cesarean delivery to evaluate labor induction compared to expectant management in full term nulliparas hospitalized for persistent contractions but non-progressive to established labor after an overnight stay. Methods From 2015 and 2017, nulliparas, ≥ 39 weeks’ gestation with prolonged latent phase of labor (persistent contractions after overnight hospitalization > 8 h), cervical dilation ≤3 cm, intact membranes and reassuring cardiotocogram were recruited. Participants were randomized to immediate induction of labor (with vaginal dinoprostone or amniotomy or oxytocin as appropriate) or expectant management (await labor for at least 24 h unless indicated intervention as directed by care provider). Primary outcome measure was Cesarean delivery. Results Three hundred eighteen women were randomized (159 to each arm). Data from 308 participants were analyzed. Cesarean delivery rate was 24.2% (36/149) vs. 23.3%, (37/159) RR 1.0 95% CI 0.7–1.6; P = 0.96 in induction of labor vs. expectant arms. Interval from intervention to delivery was 17.1 ± 9.9 vs. 40.1 ± 19.8 h; P < 0.001, intervention to active labor 9.6 ± 10.2 vs. 29.6 ± 18.5 h; P < 0.001, active labor to delivery 7.6 ± 3.6 vs. 10.5 ± 7.2 h; P < 0.001, intervention to hospital discharge 2.4 ± 1.2 vs. 2.9 ± 1.4 days; P < 0.001 and dinoprostone use was 19.5% (29/149) vs. 8.2% (13/159) RR 2.4 95% CI 1.3–4.4; P = 0.01 in IOL compared with expectant arms respectively. Intrapartum oxytocin use, epidural analgesia and uterine hyperstimulation syndrome, postpartum hemorrhage, patient satisfaction on allocated intervention, during labor and delivery and baby outcome were not significantly different across trial arms. Conclusions Induction of labor did not reduce Cesarean delivery rates but intervention to delivery and to hospital discharge durations are shorter. Patient satisfaction scores were similar. Induction of labor for prolonged latent phase of labor can be performed without apparent detriment to expedite delivery. Trial registration Registered in Malaysia National Medical Research Register (NMRR-15-16-23,886) on 6 January 2015 and the International Standard Randomised Controlled Trials Number registry, registration number ISRCTN14099170 on 5 Nov 2015.
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Affiliation(s)
- Patrick Naveen Sargunam
- Department of Obstetrics and Gynaecology, Faculty of Medicine, University of Malaya, Lembah Pantai, 50603, Kuala Lumpur, Malaysia
| | - Lindy Li Mei Bak
- Department of Obstetrics and Gynaecology, Faculty of Medicine, University of Malaya, Lembah Pantai, 50603, Kuala Lumpur, Malaysia
| | - Peng Chiong Tan
- Department of Obstetrics and Gynaecology, Faculty of Medicine, University of Malaya, Lembah Pantai, 50603, Kuala Lumpur, Malaysia.
| | - Narayanan Vallikkannu
- Department of Obstetrics and Gynaecology, Faculty of Medicine, University of Malaya, Lembah Pantai, 50603, Kuala Lumpur, Malaysia
| | - Mat Adenan Noor Azmi
- Department of Obstetrics and Gynaecology, Faculty of Medicine, University of Malaya, Lembah Pantai, 50603, Kuala Lumpur, Malaysia
| | - Syeda Nureena Zaidi
- Department of Obstetrics and Gynaecology, Faculty of Medicine, University of Malaya, Lembah Pantai, 50603, Kuala Lumpur, Malaysia
| | - Sandar Tin Win
- Department of Obstetrics and Gynaecology, Faculty of Medicine, University of Malaya, Lembah Pantai, 50603, Kuala Lumpur, Malaysia
| | - Siti Zawiah Omar
- Department of Obstetrics and Gynaecology, Faculty of Medicine, University of Malaya, Lembah Pantai, 50603, Kuala Lumpur, Malaysia
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