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Fertility and Sterility Aug 2022Climate change is a major risk factor for overall health, including reproductive health, and well-being. Increasing temperatures, due mostly to increased greenhouse... (Review)
Review
Climate change is a major risk factor for overall health, including reproductive health, and well-being. Increasing temperatures, due mostly to increased greenhouse gases trapping excess heat in the atmosphere, result in erratic weather patterns, wildfires, displacement of large communities, and stagnant water resulting in vector-borne diseases that, together, have set the stage for new and devastating health threats across the globe. These conditions disproportionately affect disadvantaged and vulnerable populations, including women, pregnant persons, young children, the elderly, and the disabled. This review reports on the evidence for the adverse impacts of air pollution, wildfires, heat stress, floods, toxic chemicals, and vector-borne diseases on male and female fertility, the developing fetus, and obstetric outcomes. Reproductive health care providers are uniquely positioned and have an unprecedented opportunity to educate patients and policy makers about mitigating the impact of climate change to assure reproductive health in this and future generations.
Topics: Air Pollution; Climate Change; Female; Humans; Male; Reproductive Health; Vulnerable Populations; Weather
PubMed: 35878942
DOI: 10.1016/j.fertnstert.2022.06.005 -
American Journal of Obstetrics and... Aug 2022To update a previously published systematic review and perform a meta-analysis on the risk factors for primary pelvic organ prolapse and prolapse recurrence. (Meta-Analysis)
Meta-Analysis Review
OBJECTIVE
To update a previously published systematic review and perform a meta-analysis on the risk factors for primary pelvic organ prolapse and prolapse recurrence.
DATA SOURCES
PubMed and Embase were systematically searched. We searched from July 1, 2014 until July 5, 2021. The previous search was from inception until August 4, 2014.
STUDY ELIGIBILITY CRITERIA
Randomized controlled trials and cross-sectional and cohort studies conducted in the Western developed countries that reported on multivariable analysis of risk factors for primary prolapse or prolapse recurrence were included. The definition of prolapse was based on anatomic references, and prolapse recurrence was defined as anatomic recurrence after native tissue repair. Studies on prolapse recurrence with a median follow-up of ≥1 year after surgery were included.
METHODS
Quality assessment was performed with the Newcastle-Ottawa Scale. Data from the previous review and this review were combined into forest plots, and meta-analyses were performed where possible. If the data could not be pooled, "confirmed risk factors" were identified if ≥2 studies reported a significant association in multivariable analysis.
RESULTS
After screening, 14 additional studies were selected-8 on the risk factors for primary prolapse and 6 on prolapse recurrence. Combined with the results from the previous review, 27 studies met the inclusion criteria, representing the data of 47,429 women. Not all studies could be pooled because of heterogeneity. Meta-analyses showed that birthweight (n=3, odds ratio, 1.04; 95% confidence interval, 1.02-1.06), age (n=3, odds ratio, 1.34; 95% confidence interval, 1.23-1.47), body mass index (n=2, odds ratio, 1.75; 95% confidence interval, 1.17-2.62), and levator defect (n=2, odds ratio, 3.99; 95% confidence interval, 2.57-6.18) are statistically significant risk factors, and cesarean delivery (n=2, pooled odds ratio, 0.08; 95% confidence interval, 0.03-0.20) and smoking (n=3, odds ratio, 0.59; 95% confidence interval, 0.46-0.75) are protective factors for primary prolapse. Parity, vaginal delivery, and levator hiatal area are identified as "confirmed risk factors." For prolapse recurrence, preoperative prolapse stage (n=5, odds ratio, 2.68; 95% confidence interval, 1.93-3.73) and age (n=2, odds ratio, 3.48; 95% confidence interval, 1.99-6.08) are statistically significant risk factors.
CONCLUSION
Vaginal delivery, parity, birthweight, age, body mass index, levator defect, and levator hiatal area are risk factors, and cesarean delivery and smoking are protective factors for primary prolapse. Preoperative prolapse stage and younger age are risk factors for prolapse recurrence after native tissue surgery.
Topics: Birth Weight; Cross-Sectional Studies; Delivery, Obstetric; Female; Humans; Pelvic Organ Prolapse; Pregnancy; Risk Factors
PubMed: 35500611
DOI: 10.1016/j.ajog.2022.04.046 -
Journal of Medical Internet Research Apr 2022The applications of artificial intelligence (AI) processes have grown significantly in all medical disciplines during the last decades. Two main types of AI have been... (Review)
Review
BACKGROUND
The applications of artificial intelligence (AI) processes have grown significantly in all medical disciplines during the last decades. Two main types of AI have been applied in medicine: symbolic AI (eg, knowledge base and ontologies) and nonsymbolic AI (eg, machine learning and artificial neural networks). Consequently, AI has also been applied across most obstetrics and gynecology (OB/GYN) domains, including general obstetrics, gynecology surgery, fetal ultrasound, and assisted reproductive medicine, among others.
OBJECTIVE
The aim of this study was to provide a systematic review to establish the actual contributions of AI reported in OB/GYN discipline journals.
METHODS
The PubMed database was searched for citations indexed with "artificial intelligence" and at least one of the following medical subject heading (MeSH) terms between January 1, 2000, and April 30, 2020: "obstetrics"; "gynecology"; "reproductive techniques, assisted"; or "pregnancy." All publications in OB/GYN core disciplines journals were considered. The selection of journals was based on disciplines defined in Web of Science. The publications were excluded if no AI process was used in the study. Review, editorial, and commentary articles were also excluded. The study analysis comprised (1) classification of publications into OB/GYN domains, (2) description of AI methods, (3) description of AI algorithms, (4) description of data sets, (5) description of AI contributions, and (6) description of the validation of the AI process.
RESULTS
The PubMed search retrieved 579 citations and 66 publications met the selection criteria. All OB/GYN subdomains were covered: obstetrics (41%, 27/66), gynecology (3%, 2/66), assisted reproductive medicine (33%, 22/66), early pregnancy (2%, 1/66), and fetal medicine (21%, 14/66). Both machine learning methods (39/66) and knowledge base methods (25/66) were represented. Machine learning used imaging, numerical, and clinical data sets. Knowledge base methods used mostly omics data sets. The actual contributions of AI were method/algorithm development (53%, 35/66), hypothesis generation (42%, 28/66), or software development (3%, 2/66). Validation was performed on one data set (86%, 57/66) and no external validation was reported. We observed a general rising trend in publications related to AI in OB/GYN over the last two decades. Most of these publications (82%, 54/66) remain out of the scope of the usual OB/GYN journals.
CONCLUSIONS
In OB/GYN discipline journals, mostly preliminary work (eg, proof-of-concept algorithm or method) in AI applied to this discipline is reported and clinical validation remains an unmet prerequisite. Improvement driven by new AI research guidelines is expected. However, these guidelines are covering only a part of AI approaches (nonsymbolic) reported in this review; hence, updates need to be considered.
Topics: Artificial Intelligence; Female; Gynecology; Humans; Obstetrics; Periodicals as Topic; Pregnancy
PubMed: 35297766
DOI: 10.2196/35465 -
American Journal of Obstetrics and... May 2023Green-stained amniotic fluid, often referred to as meconium-stained amniotic fluid, is present in 5% to 20% of patients in labor and is considered an obstetric hazard.... (Review)
Review
Green-stained amniotic fluid, often referred to as meconium-stained amniotic fluid, is present in 5% to 20% of patients in labor and is considered an obstetric hazard. The condition has been attributed to the passage of fetal colonic content (meconium), intraamniotic bleeding with the presence of heme catabolic products, or both. The frequency of green-stained amniotic fluid increases as a function of gestational age, reaching approximately 27% in post-term gestation. Green-stained amniotic fluid during labor has been associated with fetal acidemia (umbilical artery pH <7.00), neonatal respiratory distress, and seizures as well as cerebral palsy. Hypoxia is widely considered a mechanism responsible for fetal defecation and meconium-stained amniotic fluid; however, most fetuses with meconium-stained amniotic fluid do not have fetal acidemia. Intraamniotic infection/inflammation has emerged as an important factor in meconium-stained amniotic fluid in term and preterm gestations, as patients with these conditions have a higher rate of clinical chorioamnionitis and neonatal sepsis. The precise mechanisms linking intraamniotic inflammation to green-stained amniotic fluid have not been determined, but the effects of oxidative stress in heme catabolism have been implicated. Two randomized clinical trials suggest that antibiotic administration decreases the rate of clinical chorioamnionitis in patients with meconium-stained amniotic fluid. A serious complication of meconium-stained amniotic fluid is meconium aspiration syndrome. This condition develops in 5% of cases presenting with meconium-stained amniotic fluid and is a severe complication typical of term newborns. Meconium aspiration syndrome is attributed to the mechanical and chemical effects of aspirated meconium coupled with local and systemic fetal inflammation. Routine naso/oropharyngeal suctioning and tracheal intubation in cases of meconium-stained amniotic fluid have not been shown to be beneficial and are no longer recommended in obstetrical practice. A systematic review of randomized controlled trials suggested that amnioinfusion may decrease the rate of meconium aspiration syndrome. Histologic examination of the fetal membranes for meconium has been invoked in medical legal litigation to time the occurrence of fetal injury. However, inferences have been largely based on the results of in vitro experiments, and extrapolation of such findings to the clinical setting warrants caution. Fetal defecation throughout gestation appears to be a physiologic phenomenon based on ultrasound as well as in observations in animals.
Topics: Infant, Newborn; Pregnancy; Female; Humans; Meconium Aspiration Syndrome; Meconium; Amniotic Fluid; Chorioamnionitis; Pregnancy Complications; Inflammation; Heme
PubMed: 37012128
DOI: 10.1016/j.ajog.2022.11.1283 -
International Urogynecology Journal Sep 2020Most vaginal births are associated with trauma to the perineum. The morbidity associated with perineal trauma can be significant, especially when it leads to third- and... (Meta-Analysis)
Meta-Analysis Review
INTRODUCTION AND HYPOTHESIS
Most vaginal births are associated with trauma to the perineum. The morbidity associated with perineal trauma can be significant, especially when it leads to third- and fourth-degree perineal tears. We hypothesized that antenatal perineal massage could decrease the incidence of perineal trauma, particularly severe perineal tears and other postpartum complications.
METHODS
We searched four different databases from inception until August 2019 for the available trials. We included randomized controlled trials (RCTs) which assessed the effect of antenatal perineal massage (intervention group) versus control group (no antenatal perineal massage) in perineal trauma patients. Data were extracted from eligible studies and meta-analyzed using RevMan software. Primary outcomes were the risk of episiotomies and perineal tears. Secondary outcomes were perineal pain, second stage of labor duration, wound healing, anal incontinence, and Apgar scores at 1 and 5 min.
RESULTS
Eleven RCTs with 3467 patients were analyzed. Women who received antenatal perineal massage had significantly lower incidence of episiotomies (RR = 0.79, 95% CI [0.72, 0.87], p < 0.001) and perineal tears (RR = 0.79, 95% CI [0.67, 0.94], p = 0.007), particularly the risk of third- and fourth-degree perineal tears (p = 0.03). Better wound healing and less perineal pain were evident in the antenatal perineal massage group. Antenatal perineal massage reduced the second stage of labor duration (p = 0.005) and anal incontinence (p = 0.003) with significant improvement in Apgar scores at 1 and 5 min (p = 0.01 and p = 0.02).
CONCLUSIONS
Antenatal perineal massage is associated with a lower risk of severe perineal trauma and postpartum complications.
Topics: Delivery, Obstetric; Episiotomy; Female; Humans; Massage; Morbidity; Obstetric Labor Complications; Perineum; Postpartum Period; Pregnancy; Randomized Controlled Trials as Topic
PubMed: 32399905
DOI: 10.1007/s00192-020-04302-8 -
European Journal of Obstetrics,... Dec 2021To assess the association of physical activity and urinary incontinence, or its recovery, during pregnancy and postpartum. A search of publications indexed in five major... (Meta-Analysis)
Meta-Analysis Review
To assess the association of physical activity and urinary incontinence, or its recovery, during pregnancy and postpartum. A search of publications indexed in five major electronic databases (CENTRAL, PubMed, EMBASE, CINAHL and PEDro) was performed from their respective inception dates to the 30 March 2020 with a combination of keywords to identify studies of interest. Google Scholar was used for non-indexed literature. All studies comparing physical activity with standard care in pregnant and postpartum women were selected. Two reviewers independently selected studies, assessed quality and extracted data. Odds ratios with 95% confidence intervals were calculated using fixed effects or random effects models, for low and moderate heterogeneity between studies, respectively. Seven studies (n = 12479) were included. Data of four studies could be pooled for meta-analyses; subgroup and sensitivity analyses were not possible. Physical activity, either during pregnancy or postpartum, is not associated with urinary incontinence, OR 0.90 (95% CI: 0.69-1.18) and OR 1.31 (95% CI: 0.74-2.34), respectively. Due to a lack of available data, urinary incontinence recovering could not be assessed. The available low evidence does not show that physical activity during pregnancy or postpartum is associated with urinary incontinence. Moderate physical activity should therefore be encouraged for the evidence-based benefits on other obstetrical outcomes.
Topics: Exercise; Exercise Therapy; Female; Humans; Postpartum Period; Pregnancy; Urinary Incontinence
PubMed: 34839247
DOI: 10.1016/j.ejogrb.2021.11.005 -
Midwifery Nov 2021The anxiety mothers experience during pregnancy is well known and may have negative consequences for the emotional, psychological, and social development of newborns.... (Review)
Review
BACKGROUND
The anxiety mothers experience during pregnancy is well known and may have negative consequences for the emotional, psychological, and social development of newborns. Anxiety must therefore be reduced using different strategies.
OBJECTIVE
To determine published non-pharmacological interventions to reduce anxiety during pregnancy, childbirth and postpartum.
METHODS
A systematic peer-review of experimental and quasi-experimental studies was conducted using the PubMed, Scopus, Web of Science (WOS), and CINAHL databases. The quality of the studies was assessed using the Spanish version of the PEDro scale. Two researchers participated independently in the data selection and extraction process.
FINDINGS
587 articles were identified, of which 21 met the eligibility criteria. In eleven studies the intervention was performed during pregnancy, in three of them during labour, in four of them during the postpartum period, and in three of them during pregnancy and postpartum. During pregnancy, the most effective interventions were behavioural activation, cognitive behavioural therapy, yoga, music therapy, and relaxation; during childbirth: aromatherapy; during pregnancy and postpartum: antenatal training, massage by partners, and self-guided book reading with professional telephone assistance.
CONCLUSION AND IMPLICATIONS
The most effective interventions to reduce anxiety were performed either during pregnancy or during the postpartum period, not during labour. Most of the interventions were performed on the women, with few of them being performed on both partners. Non-pharmacological interventions may be applied by nurses and midwives to reduce anxiety during pregnancy, labour and postpartum.
Topics: Anxiety; Anxiety Disorders; Female; Humans; Infant, Newborn; Labor, Obstetric; Parturition; Postpartum Period; Pregnancy
PubMed: 34464836
DOI: 10.1016/j.midw.2021.103126 -
JAMA Network Open Jun 2020Knowledge of whether serious adverse pregnancy outcomes are associated with increasingly widespread effects of climate change in the US would be crucial for the...
IMPORTANCE
Knowledge of whether serious adverse pregnancy outcomes are associated with increasingly widespread effects of climate change in the US would be crucial for the obstetrical medical community and for women and families across the country.
OBJECTIVE
To investigate prenatal exposure to fine particulate matter (PM2.5), ozone, and heat, and the association of these factors with preterm birth, low birth weight, and stillbirth.
EVIDENCE REVIEW
This systematic review involved a comprehensive search for primary literature in Cochrane Library, Cochrane Collaboration Registry of Controlled Trials, PubMed, ClinicalTrials.gov website, and MEDLINE. Qualifying primary research studies included human participants in US populations that were published in English between January 1, 2007, and April 30, 2019. Included articles analyzed the associations between air pollutants or heat and obstetrical outcomes. Comparative observational cohort studies and cross-sectional studies with comparators were included, without minimum sample size. Additional articles found through reference review were also considered. Articles analyzing other obstetrical outcomes, non-US populations, and reviews were excluded. Two reviewers independently determined study eligibility. The Arskey and O'Malley scoping review framework was used. Data extraction was performed according to the Preferred Reporting Items for Systematic Reviews and Meta-analyses (PRISMA) reporting guideline.
FINDINGS
Of the 1851 articles identified, 68 met the inclusion criteria. Overall, 32 798 152 births were analyzed, with a mean (SD) of 565 485 (783 278) births per study. A total of 57 studies (48 of 58 [84%] on air pollutants; 9 of 10 [90%] on heat) showed a significant association of air pollutant and heat exposure with birth outcomes. Positive associations were found across all US geographic regions. Exposure to PM2.5 or ozone was associated with increased risk of preterm birth in 19 of 24 studies (79%) and low birth weight in 25 of 29 studies (86%). The subpopulations at highest risk were persons with asthma and minority groups, especially black mothers. Accurate comparisons of risk were limited by differences in study design, exposure measurement, population demographics, and seasonality.
CONCLUSIONS AND RELEVANCE
This review suggests that increasingly common environmental exposures exacerbated by climate change are significantly associated with serious adverse pregnancy outcomes across the US.
Topics: Air Pollution; Female; Hot Temperature; Humans; Infant, Low Birth Weight; Maternal Exposure; Observational Studies as Topic; Pregnancy; Premature Birth; Stillbirth; United States
PubMed: 32556259
DOI: 10.1001/jamanetworkopen.2020.8243 -
The Journal of Maternal-fetal &... Dec 2022Multiple factors are thought to affect a woman's sensation of pain during the process of labor. Birthing balls are round exercise balls upon which a woman sits during... (Meta-Analysis)
Meta-Analysis
OBJECTIVE
Multiple factors are thought to affect a woman's sensation of pain during the process of labor. Birthing balls are round exercise balls upon which a woman sits during labor and performs different movements such as rocking back and forth and pelvic rotation. Midwives and nurses have been using birthing balls (also known as Swiss balls) to increase maternal comfort, widen the pelvic outlet, and facilitate progression of labor for women laboring without an epidural. Therefore, the aim of this systematic review and meta-analysis of randomized controlled trials is to assess whether the use of the birthing ball in labor decreases maternal pain during labor.
DATA SOURCES
Research was conducted using PubMed, Scopus, ClinicalTrial.gov, OVID and Cochrane Library as electronic databases. Randomized controlled trials were identified using the following search strategy: "birthing ball" OR "birth ball" OR "swiss ball" OR "exercise ball" AND labor from the inception of each database to June 2019. No restrictions for language or geographic location were applied.
STUDY ELIGIBILITY CRITERIA
Selection criteria included randomized trials of pregnant women with a singleton, cephalic fetus who were randomized to either birthing ball or control group (i.e. no birthing ball) for use in labor.
STUDY APPRAISAL AND SYNTHESIS METHODS
Seven trials with 533 pregnant women were included. 287 (53.8%) were randomized to the intervention group (birthing ball) and 246 (46.2%) were randomized to the control group (no birthing ball). All analyses were done using an intention-to-treat approach, evaluating women according to the treatment group to which they were randomly allocated in the original trials. The primary outcome was labor pain in the first stage of labor. The summary measures were reported as summary relative risk (RR) or as summary mean difference (MD) with 95% of confidence interval (CI) using the random-effects model of DerSimonian and Laird.
RESULTS
Labor pain significantly decreased by 1.70 points in the birthing ball group compared to the control group (MD -1.70 points; 95% CI -2.20 to -1.20). Use of the birthing ball versus no birthing ball did not result in a significant difference in incidence of spontaneous vaginal delivery, operative vaginal delivery, cesarean delivery, or perineal lacerations.
CONCLUSION
The birthing ball is an effective method of pain reduction during labor for women laboring without an epidural.
Topics: Female; Pregnancy; Humans; Labor Pain; Randomized Controlled Trials as Topic; Delivery, Obstetric; Labor, Obstetric; Lacerations
PubMed: 33478303
DOI: 10.1080/14767058.2021.1875439 -
International Journal of Environmental... Mar 2023Novel treatment options for uterine fibroids, such as uterine artery embolization (UAE), ultrasound-guided and magnetic resonance-guided high-intensity focused... (Meta-Analysis)
Meta-Analysis Review
Novel treatment options for uterine fibroids, such as uterine artery embolization (UAE), ultrasound-guided and magnetic resonance-guided high-intensity focused ultrasound (USgHIFU and MRgHIFU), and transcervical radiofrequency ablation (TFA) methods, are widely used in clinical practice. This systematic review and meta-analysis (CRD42022297312) aims to assess and compare reproductive and obstetric outcomes in women who underwent these minimally invasive approaches for uterine fibroids. The search was performed in PubMed, Google Scholar, ScienceDirect, Cochrane Library, Scopus, Web of Science and Embase. Risk of bias was assessed using the Newcastle-Ottawa Scale (NOS) and Cochrane guidelines. The articles were selected to meet the following eligibility criteria: (1) research article, (2) human subject research, and (3) the study of pregnancy outcomes after the treatment of uterine fibroids by either one of three methods-UAE, HIFU, and TFA. The analysis of 25 eligible original articles shows a similar rate of live births for UAE, USgHIFU, MRgHIFU, and TFA (70.8%, 73.5%, 70%, and 75%, respectively). The number of pregnancies varied considerably among these studies, as well as the mean age of pregnant women. However, the results of pregnancy outcomes for TFA are insufficient to draw firm conclusions, since only 24 women became pregnant in these studies, resulting in three live births. The miscarriage rate was highest in the UAE group (19.2%). USgHIFU was associated with a higher rate of placental abnormalities compared to UAE (2.8% vs. 1.6%). The pooled estimate of pregnancies was 17.31% to 44.52% after UAE, 18.69% to 78.53% after HIFU, and 2.09% to 7.63% after TFA. The available evidence confirmed that these minimally invasive uterine-sparing treatment options for uterine fibroids are a good approach for patients wishing to preserve their fertility, with comparable reproductive and obstetric outcomes among the different techniques.
Topics: Female; Humans; Pregnancy; Uterine Neoplasms; Uterine Artery Embolization; Treatment Outcome; Placenta; Leiomyoma
PubMed: 36901489
DOI: 10.3390/ijerph20054480