A comparative study of postpartum hemorrhage severity in mothers with and without methylergometrine administration in normal labor

A double centre retrospective study into rates of postpartum haemorrhage in women on low molecular weight heparin

To identify the risk factors of postpartum hemorrhage (PPH) in women of advanced maternal age (AMA) undergoing natural childbirth and to develop a nomogram model for PPH risk prediction in this population. This study retrospectively collected data from 220 AMA women who had a natural childbirth at the Third Affiliated Hospital of Chengdu Medical College, Chengdu Pidu District People's Hospital between March 2020 and May 2023, forming the training cohort. The cohort was categorized into the PPH group and the non-PPH group based on the occurrence of PPH. Clinical data were compared between the two groups. Univariate and multivariate logistic analyses were employed to identify the factors associated with PPH. A predictive model for the risk of PPH in AMA women was developed, and its predictive accuracy was assessed using calibration curves, receiver operating characteristic (ROC) curves, and decision curve analysis (DCA). Additionally, clinical data from 110 AMA women who had a natural childbirth at our hospital between June 2023 and August 2024 were collected, forming the validation cohort. The overall incidence of PPH was 17.58% (58/330), including 39 from the training cohort, and 19 from the validation cohort. Univariate logistic analysis revealed that age, placenta previa, hypertensive disorder of pregnancy (HDP), fetal macrosomia, uterine atony, and scarred uterus were significant risk factors for PPH in AMA women (all P < 0.05). Multivariate logistic model identified age, placenta previa, HDP, uterine atony, and scarred uterus as independent risk factors for PPH in AMA women (all P < 0.05). Based on these independent risk factors, a nomogram model for predicting PPH in AMA women was developed, demonstrating an area under the ROC curve (AUC) of 0.841 (95% CI: 0.773-0.908) in the training cohort and 0.868 (95% CI: 0.767-0.969) in the validation cohort. The calibration curve analysis indicated that the model's predicted PPH risk in AMA population closely aligned with the actual outcomes, while DCA demonstrated model's significant clinical utility. The nomogram prediction model developed in this study effectively estimates the risk of PPH in AMA women, offering valuable clinical guidance.

Prevention of postpartum haemorrhage is essential in the pursuit of improved health care for women. However, limited literature is available for comparing the use of oxytocin agonist carbetocin with syntometrine in women undergoing vaginal deliveries. We aimed to compare intramuscular carbetocin with intramuscular syntometrine for the routine prevention of postpartum haemorrhage in women who deliver vaginally. Prospective double-blind randomised controlled trial. Tertiary referral centre. Pregnant women with no contraindication for vaginal delivery recruited from January 2005 to April 2008. Participants were randomised to receive either syntometrine or carbetocin during the third stage of labour. Primary outcome measure was postpartum haemorrhage requiring additional uterotonics. Secondary outcome measures were the incidence of postpartum haemorrhage (> or =500 ml), severe postpartum haemorrhage (> or =1000 ml) and adverse effects profile. Women in the carbetocin group (13.5%) and in the syntometrine group (16.8%) had postpartum haemorrhage requiring additional uterotonics (P = 0.384). 1.6% of women in each group had postpartum haemorrhage (P = 1.0) and the estimated blood loss during the third stage of labour was similar between the two groups (P = 0.294). Women who had syntometrine were four times more likely to experience nausea (RR = 4.2; 95% CI 2.2-7.8) and vomiting (RR = 4.3; 95% CI 1.9-9.5) compared with women who had carbetocin. Tremor, sweating, retching and uterine pain were also more likely in the syntometrine group compared with the carbetocin group (P < 0.05). Carbetocin has an efficacy similar to syntometrine for prevention of postpartum haemorrhage, but is associated with less adverse effects.

Introduction: The pharmacologic agents currently used routinely to prevent postpartum hemorrhage are mainly oxytocin, syntometrine (a combination of oxytocin and ergometrine), and carbetocin. Syntometrine is associated with a statistically significant reduction in the risk of postpartum hemorrhage when compared with oxytocin alone. So, this study aimed to assess the adverse effects of carbetocin administration in the third stage of labor. This study aimed to analyze the adverse effects of carbetocin administration in the third stage of labor. Methods: This cross-sectional observational study was conducted at the Department of Obstetrics and Gynaecology, Shaheed Suhrawardy Medical College Hospital, Dhaka, Bangladesh. The study period was from May 2016 to October 2016. 100 women undergoing normal vaginal delivery were the study subject. A convenient sampling technique was used in this study. Necessary data was collected in the data collection sheet. Women received a bolus of 100 microgram carbetocin IV at delivery of the anterior shoulder. A standardized deliver mat (Quaiyum's mat) was used before placental removal for measuring blood loss. Statistical analysis was carried out by using the Statistical Package for Social Sciences version 19.0 for Windows (SPSS Inc., Chicago, Illinois, USA). The mean values were calculated by frequencies and percentages. Result: In this study, the majority (54, 54.0%) of patients belonged to age 20-25 years, followed by (30, 30.0%) &gt;25 years. It was observed that the majority 93(93.0%) patients had regular menstrual history. Concerning the clinical indices, anaemia was found 69(69.0%), jaundice 08(8.0%) and edema 24(24.0%). Additional uterotonices was used in 15(15.0%) and blood transfusion 07(7.0%) patients. Mean blood loss before the use of the weight of Q-mat was found 74.81±1.23 gram, mean blood loss after the use of the weight of Q-mat was 246.28±99.98 gram, and mean net blood loss was 141.61±59.93 gram. Majority 61(61.0%) babies had birth weight ≥2.5 kg. Majority 68(68.0%) patients had Hb% &lt;10.5. The mean Hb% before delivery was 10.3±0.47 gm/dl with a range from 9.40 to 11.20 gm/dl The mean birth weight was found 2.57±0.41 kg with a range from 2.3 to 3.10 kg. Conclusion: Carbetocin appears to be an effective new drug in the active management of third-stage labor. Carbetocin has associated with a lower risk of various adverse effects and preventing postpartum hemorrhage in women undergoing vaginal delivery.

Background and objective: The purpose of this study was to examine the effectiveness of Tranexamic acid administered in the third stage of labor to reduce vaginal blood loss and prevent postpartum hemorrhage in women with high-risk factors for postpartum Hemorrhage. Methods: A double-blind randomized placebo-controlled trial with two parallel groups was conducted in women scheduled to undergo vaginal delivery at the Maternity Teaching Hospital, Erbil city, Kurdistan Region, Iraq. The women were randomly assigned to receive tranexamic acid (97 women) or placebo (99 women) immediately after fetal delivery in the third stage of labor. The vaginal blood loss and the time from fetal to placental delivery were measured. Results: The mean blood loss in the placebo group (Group 1) was 354.5 gram, which was considerably greater than the mean blood loss in the tranexamic group (Group 2), which was 284.4 gram. The incidence of postpartum hemorrhage (blood loss of ≥500 ml.) and (blood loss of ≥250 ml.) was significantly higher in G1 than G2. The length of the third stage of labor lasted 10.28 minutes in G1, which was longer than in G2, which lasted 7.82 minutes. Oxytocin was given to both groups as an active management of the third stage of labor. Conclusion: In this single-center study, women with risk factors for postpartum hemorrhage who received tranexamic acid had lower postpartum blood loss and a shorter time for placental delivery than those women who received placebo. Larger multicenter randomized clinical trials are needed to generalize these findings.

To investigate the effect of Bakri balloon tamponade (BBT) combined with different suture methods on preventing postpartum hemorrhage in women with pregnancy-induced hypertension (PIH) undergoing cesarean delivery (CD). This randomized, double-blind, controlled trial was conducted at The First Affiliated Hospital of Xingtai Medical College from October 2020 to June 2023. Patients with PIH who had persistent bleeding after CD and were unresponsive to uterine contractions, sutures, or uterine disconnection procedures were eligible participants. Eligible participants were randomly assigned to control and study groups, with 50 patients in each group. The control group used BBT combined with B-lynch uterine compression sutures, while the study group used BBT combined with modified Hayman suture. Intraoperative and postoperative bleeding and changes in vital signs were compared between the 2 groups. Moreover, changes in inflammation levels, coagulation function, and sex hormone levels were compared between the 2 groups before and after surgery. A total of 122 patients with persistent bleeding after CD were recruited, of whom 22 were excluded (16 cases of uterine contractions and/or local uterine myometrial sutures for hemostasis, 4 cases of preoperative uterine artery embolization, and 2 cases of uterine malformations). The intraoperative blood loss, postoperative blood loss at 2 hours, postoperative blood loss at 24 hours, and decrease in red blood cell and hemoglobin in the study group were significantly lower than those in the control group (P < .05). After surgery, the levels of inflammation, coagulation function, and sex hormone in both groups improved compared to before surgery, and the study group was significantly better than the control group (P < .05). In addition, the incidence of postoperative adverse events in the study group was significantly lower than that in the control group (P < .05). The hemostatic effect of BBT combined with B-lynch uterine compression sutures is comparable to that of BBT combined with modified Hayman suture for postpartum hemorrhage in pregnant women with PIH undergoing CD, but the latter has less blood loss, attenuated inflammatory response, reduced impact on coagulation function and ovarian function, and a lower incidence of adverse events.

The aim of this study was to evaluate the efficacy of adjunctive rectal misoprostol compared to oxytocin infusion in the prevention of primary postpartum hemorrhage after routine active management of the third stage of labor in women with identifiable risk factors for uterine atony. A double-blind randomized controlled trial was carried out at Obafemi Awolowo University Teaching Hospitals Complex, Ile-Ife, Nigeria. A total of 264 parturients with known risk factors for postpartum hemorrhage were randomized to receive either rectal misoprostol (600 µg; n = 132) or oxytocin infusion (20 IU in 500 mL; n = 132) after routine active management of the third stage of labor. Intrapartum blood loss was measured using a combination of the BRASSS-V calibrated drapes and differential pad weighing. Hematocrit was measured intrapartum and 24 h postpartum. There was no significant difference (P = 0.07) in the mean intrapartum blood loss between the misoprostol (387.28 ± 203.09 mL) and oxytocin (386.73 ± 298.51 mL) groups. There was also no difference in the requirement for additional intervention for uterine atony (P = 0.74). Postpartum hematocrit drop and blood transfusion were, however, significantly less in the misoprostol group. Rectal misoprostol is as effective as oxytocin infusion as an adjunct for prevention of postpartum hemorrhage in women with risk factors for uterine atony and is associated with a lower hematocrit drop and blood transfusion postpartum. However, shivering, pyrexia and vomiting are more frequent with misoprostol, though usually self-limited.

To identify risk factors for immediate postpartum hemorrhage after vaginal delivery in a South American population. This was a prospective cohort study including all vaginal births (N=11,323) between October and December 2003 and October and December 2005 from 24 maternity units in two South American countries (Argentina and Uruguay). Blood loss was measured in all births using a calibrated receptacle. Moderate postpartum hemorrhage and severe postpartum hemorrhage were defined as blood loss of at least 500 mL and at least 1,000 mL, respectively. Moderate and severe postpartum hemorrhage occurred in 10.8% and 1.9% of deliveries, respectively. The risk factors more strongly associated and the incidence of moderate postpartum hemorrhage in women with each of these factors were: retained placenta (33.3%) (adjusted odds ratio [OR] 6.02, 95% confidence interval [CI] 3.50-10.36), multiple pregnancy (20.9%) (adjusted OR 4.67, CI 2.41-9.05), macrosomia (18.6%) (adjusted OR 2.36, CI 1.93-2.88), episiotomy (16.2%) (adjusted OR 1.70, CI 1.15-2.50), and need for perineal suture (15.0%) (adjusted OR 1.66, CI 1.11-2.49). Active management of the third stage of labor, multiparity, and low birth weight were found to be protective factors. Severe postpartum hemorrhage was associated with retained placenta (17.1%) (adjusted OR 16.04, CI 7.15-35.99), multiple pregnancy (4.7%) (adjusted OR 4.34, CI 1.46-12.87), macrosomia (4.9%) (adjusted OR 3.48, CI 2.27-5.36), induced labor (3.5%) (adjusted OR 2.00, CI 1.30-3.09), and need for perineal suture (2.5%) (adjusted OR 2.50, CI 1.87-3.36). Many of the risk factors for immediate postpartum hemorrhage in this South American population are related to complications of the second and third stage of labor. II.

Postpartum hemorrhage (PPH) is the leading cause of maternal mortality worldwide. PPH-preventing interventions need to be prioritized and can be integrated with conventional methods of PPH prevention. The introduction of negative intrauterine pressure using a suction cannula can be one of the cheapest modalities to decrease PPH secondary to uterine atonicity. This method has brought a renaissance to practical obstetrics in low-middle income countries (LMIC), where the cost and availability of uterotonics are major health issues. It was a prospective quality improvement (QI) study conducted in the labor and delivery wards of a tertiary care medical institute and teaching center over the duration of one year. We aimed to assess the decrease in the incidence of atonic PPH with a negative intrauterine pressure suction device (NIPSD) integrated with active management of the third stage of labor (AMTSL) in the prevention of atonic PPH following normal vaginal delivery in low-risk antenatal women. In the initial six months, routine AMTSL was instituted for all consenting women (group 1). In the next six months, NIPSD was integrated with AMTSL (group 2). Data pertaining to the amount of blood loss, the incidence of primary PPH, uterine tone, fall in hemoglobin and hematocrit levels post-delivery, need for blood transfusion, and doctor and patient satisfaction were tabulated for all patients. A total of 1324 consenting women were eligible for enrollment during the study time frame. In the initial six months (baseline period, group 1), 715 participants were subjected to routine AMTSL in the third stage of labor. During the intervention phase (group 2), 609 parturient women were recruited. There was no significant difference in baseline parameters between the two groups. With the introduction of NIPSD to routine AMTSL, there was a significant decrease in the average volume of blood loss during vaginal delivery (group 1 = 389.45+65.42 ml, group 2 = 216.66+34.27 ml; p-value = 0.012). The incidence of atonic PPH was reduced by more than 75% (group 1 = 13 women, group 2 = 3 women; p-value = 0.001) after the introduction of NIPSD complementing routine AMTSL. The introduction of NIPSD has also been instrumental in reducing the cost burden on patient and hospital expenditures. The net benefit of its introduction resulted in a reduction of the overall cost burden of blood transfusions by around 70%. PPH is a public health problem, and measures to reduce PPH must be implemented to decrease this health burden. In countries with low resources, complementing routine AMTSL with NIPSD can be instrumental in decreasing the incidence of PPH. Considering its cost-effectiveness and reusability, LMIC can adopt NIPSD as a routine measure in all vaginal deliveries.

Carbetocin Versus Oxytocin for Prevention of Postpartum Hemorrhage in Patients With Severe Preeclampsia: A Double-Blind Randomized Controlled Trial

To identify risk factors associated with postpartum haemorrhage (PPH) in order to improve the effectiveness of antenatal screening. A population-based case control study. Harare, Zimbabwe. Two groups of women, one group consisting of those with postpartum haemorrhage after a normal vaginal delivery and the other of women with normal unassisted vaginal delivery without PPH. Data abstracted from the medical records; relative risks were estimated by multivariate logistic regression. Low parity, advanced maternal age, and antenatal hospitalisation were among the strongest risk factors, with more modest associations for history of poor maternal or perinatal outcomes and borderline anaemia at the time of booking. No association with grand multiparity was found. These findings confirm the importance of previously recognised factors such as low parity, poor obstetric history, anaemia, and prolonged labour, but call into question the significance of grand multiparity. Previously undocumented factors such as maternal age greater than 35 years and occiput posterior head position emerged as predictors worthy of further investigation.

Placental cord drainage impact on third stage of labor: a randomized controlled trial

Background: Postpartum haemorrhage (PPH) is a serious complication and a cause of maternal mortality after delivery. This study used machine learning algorithms and new feature selection methods to build an efficient PPH risk prediction model and provided new ideas and reference methods for PPH risk management. Methods: The clinical data of women who gave birth at Wenzhou People’s Hospital from 1 January 2021, to 30 March 2022, were retrospectively analysed, and the women were divided into a high haemorrhage group (337 patients) and a low haemorrhage group (431 patients) based on the amount of blood loss. Machine learning algorithms were used to identify the features associated with postpartum haemorrhage from multiple clinical variables using feature selection methods, such as recursive feature elimination (RFE), recursive feature elimination with cross-validation (RFECV), and SelectKBest, and to establish prediction models. Results: For all women, the features associated with postpartum haemorrhage were ‘age’, ‘newborn weight’, ‘gestational week’, ‘perineal laceration’, and ‘caesarean section’. The prediction model established by the random forest classifier performed best, with an F1 score of 0.73 and an area under the curve (AUC) of 0.84. For women who underwent caesarean section or had a vaginal delivery, the features associated with postpartum haemorrhage risk were different. The risk factors for postpartum haemorrhage in women who underwent caesarean section were ‘age’, ‘parity’, ‘preterm birth’, and ‘placenta previa’. The prediction model established by the random forest classifier performed best, with an F1 value of 0.96 and an AUC of 0.95. The risk factors for postpartum haemorrhage in women with vaginal delivery were ‘age’, ‘parity’, ‘gestational week’, ‘diabetes’, ‘assisted reproduction’, ‘hypertension (preeclampsia)’, and ‘multiple pregnancy’. The prediction model established by the AdaBoost classifier performed best, with an F1 value of 0.65 and an AUC of 0.76. Conclusions: Machine learning algorithms can effectively identify the features associated with postpartum haemorrhage risk from clinical variables and establish accurate prediction models, offering a novel approach for clinicians to assess the risk of and prevent postpartum haemorrhage.

Postpartum Hemorrhage In Women With Von Willebrand Disease and Other Bleeding Disorders

To establish a comprehensive understanding of the roles of midwives and the challenges they encounter in the prevention, diagnosis and management of postpartum haemorrhage (PPH) following normal vaginal delivery. We conducted a scoping review following the Preferred Reporting Items for Systematic Reviews and Meta-Analysis for Scoping Reviews (PRISMA-ScR) recommendations. We considered studies related to the roles of midwives and the challenges they encounter in the prevention, diagnosis and management of PPH during vaginal delivery. We excluded guidelines, consensuses, abstracts of meetings and non-English language studies. Databases, including the Cochrane Library, PubMed, Web of Science, Ovid, Medline, Embase, JBI EBP and BIOSIS Previews, were searched on January 1, 2023, with no time limitations. We included 28 publications. Midwives play important roles in the prevention, diagnosis and management of postpartum haemorrhage during vaginal delivery. In the prevention of PPH, midwives' roles include identifying and managing high-risk factors, managing labour and implementing skin-to-skin contact. In the diagnosis of PPH, midwives' roles include early recognition and blood loss estimation. In the management of PPH, midwives are involved in mobilizing other professional team members, emergency management, investigating causes, enhancing uterine contractions, the repair of perineal tears, arranging transfers and preparation for surgical intervention. However, midwives face substantial challenges, including insufficient knowledge and skills, poor teamwork skills, insufficient resources and the need to deal with their negative emotions. Midwives must improve their knowledge, skills and teamwork abilities. Health care system managers and the government should give full support to midwives. Future research should focus on developing clinical practice guidelines for midwives for preventing, diagnosing and managing postpartum haemorrhage.