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Journal of Healthcare Engineering 2022Hypertensive disorders of pregnancy (HDP) can cause serious prenatal and postnatal complications and is a threat to maternal and fetal health. To offer guidance for... (Meta-Analysis)
Meta-Analysis
OBJECTIVE
Hypertensive disorders of pregnancy (HDP) can cause serious prenatal and postnatal complications and is a threat to maternal and fetal health. To offer guidance for clinical decisions, we systematically reviewed the effects of misoprostol on induction of labour in HDP patients.
METHODS
PubMed, Web of Science, Embase, CNKI, and Wanfang databases were searched for relevant literature from 2010 to 2020. Subsequently, a meta-analysis was performed to compare the effective rate of induction of labour and reducing postpartum hemorrhage (PPH) between the intervention group ( = 544, misoprostol) and the control group ( = 543, oxytocin).
RESULTS
A total of 10 studies with 1087 patients were included. The 10 studies compared the effective rate of induction of labour between the two groups and confirmed that the effective rate in the intervention group was significantly higher than that in the control group (OR = 4.37; 95% CI: 2.73, 7.00). Seven studies compared PPH between the groups and showed that it was significantly reduced in the intervention group compared to the control group (SMD = -1.32; 95% CI: -2.05, -0.59; < 0.0001).
CONCLUSION
Misoprostol has a high effective rate of induction of labour in HDP patients and is an effective uterotonic agent in reducing PPH. This meta-analysis provides clinicians with meaningful information to help them make evidence-based decisions.
Topics: Female; Humans; Hypertension, Pregnancy-Induced; Labor, Induced; Misoprostol; Oxytocics; Oxytocin; Postpartum Hemorrhage; Pregnancy
PubMed: 35432818
DOI: 10.1155/2022/8448690 -
Anaesthesia Nov 2021Oxytocin is one of the most commonly used medications during labour and delivery. Recent insights from basic neuroscience research suggest that the uterotonic effects of...
Oxytocin is one of the most commonly used medications during labour and delivery. Recent insights from basic neuroscience research suggest that the uterotonic effects of oxytocin may arguably be trivial when compared with its profound effects on higher-order human behaviour. The purpose of this review is to highlight the potential consequences of manipulating oxytocinergic signalling during the peripartum period and its long-term impact on the maternal-infant dyad. We identified four domains where modulation of oxytocinergic signalling might be consequential: postpartum depression; breastfeeding; neurodevelopment; and chronic pain, and performed a literature search to address the impact of peripartum oxytocin administration. We have shown modest, but inconsistent, evidence linking peripartum oxytocin administration with postpartum depression. Breastfeeding success appeared to be negatively correlated with peripartum oxytocin exposure, perhaps secondary to impaired primitive neonatal reflexes and maternal-infant bonding. The association between perinatal oxytocin exposure and subsequent development of neurodevelopmental disorders such as autism in the offspring was weak, but these studies were limited by the lack of information on the cumulative dose. Finally, we identified substantial evidence for analgesic and anti-hypersensitivity effects of oxytocin which might partly explain the low incidence of chronic pain after caesarean birth. Although most data presented here are observational, our review points to a compelling need for robust clinical studies to better dissect the impact of peripartum oxytocin administration, and as stewards of its use, increase the precision with which we administer oxytocin to prevent overuse of the drug.
Topics: Attention Deficit and Disruptive Behavior Disorders; Breast Feeding; Depression, Postpartum; Female; Humans; Oxytocics; Oxytocin; Peripartum Period; Postpartum Hemorrhage; Pregnancy
PubMed: 34389972
DOI: 10.1111/anae.15553 -
Taiwanese Journal of Obstetrics &... Nov 2019Follow-up of the side effects of uterotonics used for postpartum hemorrhage is one of the most important roles of health care providers. In this review, it is aimed to...
Follow-up of the side effects of uterotonics used for postpartum hemorrhage is one of the most important roles of health care providers. In this review, it is aimed to compare the side effects of misoprostol and oxytocin that are used to prevent postpartum hemorrhage. This systematic review was carried out in accordance with the guidelines for the Center for Reviews and Dissemination 2009 (CRD). Articles published in the PubMed, CINAHL, Wiley Interscience, Science Direct and Cochrane databases between 2010 and 2016 were examined. Finally, although 2277 articles were found to be related to misoprostol and oxytocin, only 12 randomized controlled (n = 6290) articles were included in the review. Results: In the misoprostol group, the rate of >500 mL blood loss was lower than that in the oxytocin group (p < 0.05). The groups were similar in terms of ≥500 mL blood loss were similar (p > 0.05). Although misoprostol was more effective than oxytocin in preventing PPH, the side effects of misoprostol were more. The incidence of drug-induced shivering, nausea and increase in body temperature were significantly higher in the misoprostol group than the oxytocin and placebo groups (p < 0.05). Shivering was most frequently seen in the 600 mg of sublingual misoprostol group (56.4%). Severe side effects of uterotonics used to prevent postpartum hemorrhage on maternal health were determined. Nurses and midwives should be aware of the side effects of uterotonic drugs and should develop care guidelines that explain the interventions to be performed in case of side effects.
Topics: Dose-Response Relationship, Drug; Drug Administration Routes; Drug Therapy, Combination; Female; Humans; Maternal Health; Misoprostol; Oxytocics; Oxytocin; Postpartum Hemorrhage; Pregnancy
PubMed: 31759522
DOI: 10.1016/j.tjog.2019.09.004 -
BMJ Sexual & Reproductive Health Apr 2022Globally, access to safe abortion is limited. We aimed to assess the safety, effectiveness and acceptability of harm reduction counselling for abortion, which we define... (Review)
Review
Reducing the harms of unsafe abortion: a systematic review of the safety, effectiveness and acceptability of harm reduction counselling for pregnant persons seeking induced abortion.
BACKGROUND
Globally, access to safe abortion is limited. We aimed to assess the safety, effectiveness and acceptability of harm reduction counselling for abortion, which we define as the provision of information about safe abortion methods to pregnant persons seeking abortion.
METHODS
We searched PubMed, EMBASE, ClinicalTrials.gov, Cochrane, Global Index Medicus and the grey literature up to October 2021. We included studies in which healthcare providers gave pregnant persons information on safe use of abortifacient medications without providing the actual medications. We conducted a descriptive summary of results and a risk of bias assessment using the ROBINS-I tool. Our primary outcome was the proportion of pregnant persons who used misoprostol to induce abortion rather than other methods among those who received harm reduction counselling.
RESULTS
We included four observational studies with a total of 4002 participants. Most pregnant persons who received harm reduction counselling induced abortion using misoprostol (79%-100%). Serious complication rates were low (0%-1%). Uterine aspiration rates were not always reported but were in the range of 6%-22%. Patient satisfaction with the harm reduction intervention was high (85%-98%) where reported. We rated the risk of bias for all studies as high due to a lack of comparison groups and high lost to follow-up rates.
DISCUSSION
Based on a synthesis of four studies with serious methodological limitations, most recipients of harm reduction counselling use misoprostol for abortion, have low complication rates, and are satisfied with the intervention. More research is needed to determine abortion success outcomes from the harm reduction approach.
FUNDING
This work did not receive any funding.
PROSPERO REGISTRATION NUMBER
We registered the review in the PROSPERO database of systematic reviews (ID number: CRD42020200849).
Topics: Abortion, Induced; Counseling; Female; Harm Reduction; Humans; Misoprostol; Pregnancy
PubMed: 35017226
DOI: 10.1136/bmjsrh-2021-201389 -
Tri-Phasic Model ofOxytocin (TRIO): A systematic conceptual review of oxytocin-related ERP research.Biological Psychology Jul 2020The neuropeptide oxytocin (OT) has been shown to play a role in variety of cognitive and social processes and different hypotheses have been put forth to explain OT's...
BACKGROUND
The neuropeptide oxytocin (OT) has been shown to play a role in variety of cognitive and social processes and different hypotheses have been put forth to explain OT's effects on brain and behavior in humans. However, these previous explanatory accounts do not provide information about OT-related temporal modulation in the brain.
OBJECTIVES
This paper systematically reviewed intranasal OT administration studies employing event-related potentials (ERPs) and synthesized the existing evidence into a novel conceptual framework.
METHODS
Empirical studies, published until February 2020 and cited in major databases (EBSCOhost, PubMed, and Web of Science), were examined in accordance with PRISMA guidelines. To be included, studies had to: (i) employ intranasal administration of OT, as the chemical modulator; (ii) measure ERPs; (iii) be peer-reviewed journal articles; (iv) be written in English; and (v) examine human participants.
RESULTS
The search criteria yielded 17 empirical studies. The systematic review resulted in conceptualization of the Tri-Phasic Model ofOxytocin (TRIO), which builds on three processing stages: (i) perception, (ii) selection, and (iii) evaluation. While OT increases attention irrespective of stimuli characteristics in the perception stage, in the selection and evaluation stages, OT acts as a filter to guide attention selectively towards social over non-social stimuli and modulates prosociality/approach motivation associated with social stimuli.
CONCLUSIONS
TRIO offers an empirically-derived conceptual framework that can guide the study of OT-related modulation on attentional processes, starting very early in the processing stream. This novel account furthers theoretical understanding and informs empirical investigation into OT modulation on the brain.
Topics: Administration, Intranasal; Brain; Evoked Potentials; Humans; Models, Neurological; Oxytocin
PubMed: 32512020
DOI: 10.1016/j.biopsycho.2020.107917 -
Ultrasound in Obstetrics & Gynecology :... Feb 2021To compare the effectiveness and safety of Foley catheter and oral misoprostol for induction of labor (IOL). (Meta-Analysis)
Meta-Analysis
OBJECTIVE
To compare the effectiveness and safety of Foley catheter and oral misoprostol for induction of labor (IOL).
METHODS
The Cochrane Review on Mechanical Methods for Induction of Labour and Ovid MEDLINE, EMBASE via Ovid, Ovid Emcare, CINAHL Plus, ClinicalTrials.gov and Scopus, from inception to April 2019, were searched for randomized controlled trials (RCTs) comparing Foley catheter to oral misoprostol for IOL in viable singleton gestations. Eligible trials for which raw data were obtained were included and individual participant data meta-analysis was performed. Primary outcomes were vaginal birth, a composite of adverse perinatal outcome (including stillbirth, neonatal death, neonatal seizures, admission to the neonatal intensive care unit, severe respiratory compromise or meconium aspiration syndrome) and a composite of adverse maternal outcome (including admission to the intensive care unit, maternal infection, severe postpartum hemorrhage, maternal death or uterine rupture). The quality of the included RCTs was assessed using the Cochrane Risk of Bias 2 tool and the certainty of evidence was evaluated using the GRADE approach. A two-stage random-effects model was used for meta-analysis according to the intention-to-treat principle and interactions between treatment and baseline characteristics were assessed.
RESULTS
Of seven eligible trials, four provided individual participant data for a total of 2815 participants undergoing IOL, of whom 1399 were assigned to Foley catheter and 1416 to oral misoprostol. All four trials provided data for each of the primary outcomes in all 2815 women. Compared with those receiving oral misoprostol, Foley catheter recipients had a slightly decreased chance of vaginal birth (risk ratio (RR), 0.95 (95% CI, 0.91-0.99); I , 2.0%; moderate-certainty evidence). A trend towards a lower rate of composite adverse perinatal outcome was found in women undergoing IOL using a Foley catheter compared with oral misoprostol (RR, 0.71 (95% CI, 0.48-1.05); I , 14.9%; low-certainty evidence). Composite adverse maternal outcome did not differ between the groups (RR, 1.00 (95% CI, 0.97-1.03); I , 0%; moderate-certainty evidence). Meta-analyses of effect modifications did not show significant interactions between intervention and parity or gestational age for any of the primary outcomes.
CONCLUSIONS
For women undergoing IOL, Foley catheter is less effective than oral misoprostol, as it was associated with fewer vaginal births. However, while we found no significant difference in maternal safety, Foley catheter induction may reduce adverse perinatal outcomes. Copyright © 2020 ISUOG. Published by John Wiley & Sons Ltd.
Topics: Administration, Oral; Catheters; Female; Humans; Labor, Induced; Misoprostol; Oxytocics; Pregnancy; Randomized Controlled Trials as Topic; Urinary Catheterization
PubMed: 33258514
DOI: 10.1002/uog.23563 -
Fertility and Sterility Jan 2020To synthesize evidence on the most effective pharmacological interventions for bleeding reduction during open and minimally invasive myomectomy. (Meta-Analysis)
Meta-Analysis
Perioperative nonhormonal pharmacological interventions for bleeding reduction during open and minimally invasive myomectomy: a systematic review and network meta-analysis.
OBJECTIVE
To synthesize evidence on the most effective pharmacological interventions for bleeding reduction during open and minimally invasive myomectomy.
DESIGN
Systematic review and network meta-analysis of randomized controlled trials (RCTs).
SETTING
Not applicable.
PATIENTS
Trials assessing efficacy of pharmacological interventions during different types of myomectomy.
INTERVENTIONS
Misoprostol, oxytocin, vasopressin, tranexamic acid (TXA), epinephrine, or ascorbic acid.
MAIN OUTCOME MEASURES
Intraoperative blood loss and need for blood transfusion.
RESULTS
The present review included 26 randomized control trials (RCTs) (N = 1627). For minimally invasive procedures (9 RCTs; 474 patients), network meta-analysis showed that oxytocin (mean difference [MD] -175.5 mL, 95% confidence interval [CI] -30.1.07, -49.93), ornipressin (MD -149.6 mL, 95% CI - 178.22, -120.98), misoprostol, bupivacaine plus epinephrine, and vasopressin were effective in reducing myomectomy blood loss, but the evidence is of low quality. Ranking score of treatments included in subgroup analysis of minimally invasive myomectomy showed that oxytocin ranked first in reducing blood loss, followed by ornipressin. For open myomectomy (17 RCTs; 1,153 patients), network meta-analysis showed that vasopressin plus misoprostol (MD -652.97 mL, 95% CI - 1113.69, -174.26), oxytocin, TXA, and misoprostol were effective; however, the evidence is of low quality. Vasopressin plus misoprostol ranked first in reducing blood loss during open myomectomy (P = .97).
CONCLUSION
There is low-quality evidence to support uterotonics, especially oxytocin, and peripheral vasoconstrictors as effective options in reducing blood loss and need for blood transfusion during minimally invasive myomectomy. Oxytocin is the most effective intervention in minimally invasive myomectomy. For open myomectomy, a combination of uterotonics and peripheral vasoconstrictors is needed to effectively reduce blood loss.
Topics: Blood Loss, Surgical; Female; Humans; Leiomyoma; Minimally Invasive Surgical Procedures; Network Meta-Analysis; Oxytocin; Perioperative Care; Randomized Controlled Trials as Topic; Uterine Myomectomy; Uterine Neoplasms
PubMed: 31753311
DOI: 10.1016/j.fertnstert.2019.09.016 -
JBRA Assisted Reproduction Oct 2020To estimate the effectiveness of Atosiban in improving the outcome after embryo transfer. The effectiveness of embryo transfer per cycle is still relatively low. One... (Meta-Analysis)
Meta-Analysis
OBJECTIVE
To estimate the effectiveness of Atosiban in improving the outcome after embryo transfer. The effectiveness of embryo transfer per cycle is still relatively low. One possible explanation might be uterine contractility that expels the transferred embryos. Atosiban improved the outcome of embryo transfer by reducing uterine contractility.
METHODS
Data sources: A systematic review of papers in English using MEDLINE and EMBASE (1990-2019). Search terms included Atosiban, embryo transfer. Study selection: We included studies that compared the outcomes of embryo transfer with Atosiban and a control group. Data Extracting: Independent extraction of papers by two authors, using predefined data fields, including study quality indicators.
RESULTS
All pooled analyses were based on a fixed-effect model. Four randomised controlled trials, including 1,025 women, and two non-randomised trials, including 686 patients, met our inclusion criteria. In both studies, the heterogeneity was moderate. Atosiban increased clinical pregnancy rates regardless of the indication for ART or type of embryo transferred. Pooled OR in randomized controlled trials reached 1.47 (1.18-1.82), and in non-randomised controlled trials it reached 1.50 (95% CI 1.10-2.05).
CONCLUSION
Atosiban appears to increase the clinical pregnancy rates in women undergoing embryo transfer.
Topics: Clinical Trials as Topic; Embryo Transfer; Female; Fertilization in Vitro; Hormone Antagonists; Humans; Pregnancy; Pregnancy Rate; Vasotocin
PubMed: 32401462
DOI: 10.5935/1518-0557.20200016 -
The Cochrane Database of Systematic... Nov 2020There is general agreement that oxytocin given either through the intravenous or intramuscular route is effective in reducing postpartum blood loss. However, it is... (Meta-Analysis)
Meta-Analysis
BACKGROUND
There is general agreement that oxytocin given either through the intravenous or intramuscular route is effective in reducing postpartum blood loss. However, it is unclear whether the subtle differences between the mode of action of these routes have any effect on maternal and infant outcomes. This review was first published in 2012 and last updated in 2018.
OBJECTIVES
To determine the comparative effectiveness and safety of oxytocin administered intravenously or intramuscularly for prophylactic management of the third stage of labour after vaginal birth.
SEARCH METHODS
We searched Cochrane Pregnancy and Childbirth's Trials Register, ClinicalTrials.gov, the WHO International Clinical Trials Registry Platform (ICTRP) (19 December 2019), and reference lists of retrieved studies.
SELECTION CRITERIA
Eligible studies were randomised trials comparing intravenous with intramuscular oxytocin for prophylactic management of the third stage of labour after vaginal birth. We excluded quasi-randomised trials.
DATA COLLECTION AND ANALYSIS
Two review authors independently assessed studies for inclusion and risk of bias, extracted data and checked them for accuracy. We assessed the certainty of the evidence with the GRADE approach.
MAIN RESULTS
Seven trials, involving 7817 women, met the inclusion criteria for this review. The trials compared intravenous versus intramuscular administration of oxytocin just after the birth of the anterior shoulder or soon after the birth of the baby. All trials were conducted in hospital settings and included women with term pregnancies, undergoing a vaginal birth. Overall, the included studies were at moderate or low risk of bias, with two trials providing clear information on allocation concealment and blinding. For GRADE outcomes, the certainty of the evidence was generally moderate to high, except from two cases where the certainty of the evidence was either low or very low. High-certainty evidence suggests that intravenous administration of oxytocin in the third stage of labour compared with intramuscular administration carries a lower risk for postpartum haemorrhage (PPH) ≥ 500 mL (average risk ratio (RR) 0.78, 95% confidence interval (CI) 0.66 to 0.92; six trials; 7731 women) and blood transfusion (average RR 0.44, 95% CI 0.26 to 0.77; four trials; 6684 women). Intravenous administration of oxytocin probably reduces the risk of PPH ≥ 1000 mL, although the 95% CI crosses the line of no-effect (average RR 0.65, 95% CI 0.39 to 1.08; four trials; 6681 women; moderate-certainty evidence). In all studies but one, there was a reduction in the risk of PPH ≥ 1000 mL with intravenous oxytocin. The study that found a large increase with intravenous administration was small (256 women), and contributed only 3% of total events. Once this small study was removed from the meta-analysis, heterogeneity was eliminated and the treatment effect favoured intravenous oxytocin (average RR 0.61, 95% CI 0.42 to 0.88; three trials; 6425 women; high-certainty evidence). Additionally, a sensitivity analysis, exploring the effect of risk of bias by restricting analysis to those studies rated as 'low risk of bias' for random sequence generation and allocation concealment, found that the prophylactic administration of intravenous oxytocin reduces the risk for PPH ≥ 1000 mL, compared with intramuscular oxytocin (average RR 0.64, 95% CI 0.43 to 0.94; two trials; 1512 women). The two routes of oxytocin administration may be comparable in terms of additional uterotonic use (average RR 0.78, 95% CI 0.49 to 1.25; six trials; 7327 women; low-certainty evidence). Although intravenous compared with intramuscular administration of oxytocin probably results in a lower risk for serious maternal morbidity (e.g. hysterectomy, organ failure, coma, intensive care unit admissions), the confidence interval suggests a substantial reduction, but also touches the line of no-effect. This suggests that there may be no reduction in serious maternal morbidity (average RR 0.47, 95% CI 0.22 to 1.00; four trials; 7028 women; moderate-certainty evidence). Most events occurred in one study from Ireland reporting high dependency unit admissions, whereas in the remaining three studies there was only one case of uvular oedema. There were no maternal deaths reported in any of the included studies (very low-certainty evidence). There is probably little or no difference in the risk of hypotension between intravenous and intramuscular administration of oxytocin (RR 1.01, 95% CI 0.88 to 1.15; four trials; 6468 women; moderate-certainty evidence). Subgroup analyses based on the mode of administration of intravenous oxytocin (bolus injection or infusion) versus intramuscular oxytocin did not show any substantial differences on the primary outcomes. Similarly, additional subgroup analyses based on whether oxytocin was used alone or as part of active management of the third stage of labour (AMTSL) did not show any substantial differences between the two routes of administration.
AUTHORS' CONCLUSIONS
Intravenous administration of oxytocin is more effective than its intramuscular administration in preventing PPH during vaginal birth. Intravenous oxytocin administration presents no additional safety concerns and has a comparable side effects profile with its intramuscular administration. Future studies should consider the acceptability, feasibility and resource use for the intervention, especially in low-resource settings.
Topics: Bias; Blood Transfusion; Confidence Intervals; Female; Humans; Injections, Intramuscular; Injections, Intravenous; Labor Stage, Third; Oxytocics; Oxytocin; Postpartum Hemorrhage; Pregnancy; Randomized Controlled Trials as Topic
PubMed: 33169839
DOI: 10.1002/14651858.CD009332.pub4 -
BMC Pregnancy and Childbirth Jun 2024However, misoprostol is often used to terminate a pregnancy, but it can also cause side effects. Isosorbide mononitrate (ISMN) can help the cervix mature by increasing... (Meta-Analysis)
Meta-Analysis Comparative Study
Efficacy and safety of isosorbide mononitrate plus misoprostol compared to misoprostol alone in the management of the first and second trimester abortion: a systematic review and meta-analysis.
BACKGROUND
However, misoprostol is often used to terminate a pregnancy, but it can also cause side effects. Isosorbide mononitrate (ISMN) can help the cervix mature by increasing the production of prostaglandin E2 and vasodilation. Considering that the results of studies in this field are contradictory, it is the purpose of this study to evaluate the efficacy and safety of vaginal ISMN plus misoprostol compared to misoprostol alone in the management of first- and second-trimester abortions.
METHOD
The search process was conducted for MEDLINE through the PubMed interface, Scopus, Web-of-Science, Science Direct, the Cochrane Central Register of Controlled Trials (CENTRAL), Google Scholar, ClinicalTrials.gov, and the World Health Organization International Clinical Trials Registry Platform until November 10, 2023. Our assessment of bias was based on version 2 of the risk-of-bias tool (RoB2) for randomized trials and our level of evidence quality was determined by GRADE. Meta-analysis of all data was carried out using Review Manager (RevMan) version 5.1.
RESULT
Seven randomized clinical trials were included in the systematic review and three in the meta-analysis, with mixed quality. The results of the meta-analysis revealed that in the second-trimester abortion, the inclusion of ISMN in conjunction with vaginal misoprostol results in a noteworthy reduction in the induction abortion interval, specifically by 4.21 h (95% CI: -7.45 to -0.97, P = 0.01). The addition of vaginal ISMN to misoprostol, compared to vaginal misoprostol alone, increased the odds of a completed abortion by 3.76 times. (95% CI: 1.08 to 13.15, P = 0.04).
CONCLUSION
The findings of this study can offer valuable insights aimed at enhancing counseling and support for non-surgical methods of medication abortion within professional settings. Moreover, it improves the effectiveness of clinical treatment and reduces the occurrence of unnecessary surgical interventions in the abortion management protocol.
Topics: Humans; Misoprostol; Female; Pregnancy; Pregnancy Trimester, Second; Isosorbide Dinitrate; Abortion, Induced; Abortifacient Agents, Nonsteroidal; Pregnancy Trimester, First; Drug Therapy, Combination; Administration, Intravaginal; Treatment Outcome
PubMed: 38858628
DOI: 10.1186/s12884-024-06614-9