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Parturition - Top 30 Publications

What accounts for the association between late preterm births and risk of asthma?

Although results of many studies have indicated an increased risk of asthma in former late preterm (LPT) infants, most of these studies did not fully address covariate imbalance.

Consequences of delivery at home in a woman without prenatal care.

This is a case report of a 39-year-old multigravida woman without allopathic prenatal care who, after three previous caesarean sections, attempted to deliver her fourth child at home with the help of a direct entry midwife. During labour, fetal movement and fetal heart tones became undetectable, at which time the patient was referred by the midwife to the hospital. The patient was diagnosed with uterine rupture, bladder rupture and fetal demise; she was rushed to emergency surgery. The patient's lack of allopathic prenatal care, attempt of vaginal birth after three previous caesarean sections, coupled with her desire for delivery at home, led to her complicated course. The patient related that she was never made aware that attempting a home birth after three prior caesarean sections put her at increased risk for complications, and she was also unaware that midwives could have varying levels of training.

Shelter type and birth number influence the birth and death sites of lambs and ewe movement around lambing time.

A significant number of lambs born each yr in Australia die within 72 h of birth. Periods of high wind, combined with rain and low temperatures, can lead to marked increases in the level of mortality. Under these weather conditions mortality levels may be reduced with the provision of shelter, provided it is utilized by lambs. This study used GPS collars to determine the use of shelter by ewes and lambs, to compare the movement of ewes with twin lambs across 2 types of shelter (hedgerows and shrubs), while also comparing ewes with single and twin lambs in a single shelter type (hedgerows). Additionally, the birth sites of 364 lambs and death sites of 252 lambs were recorded across the 3 shelter type and litter size combinations (Twins in shrubs, Twins in hedgerows, Singles in hedgerows) plus an unsheltered group (Singles in unsheltered). A higher (P < 0.001) than randomly expected percentage of ewes lambed in the areas closest to both shelter types; in the shrub shelter 42% of ewes lambed within 2.5 m of shrub rows compared to an expected 11% based on the proportion of the paddock this area constituted. Despite the higher than expected percentage of ewes lambing close to the shelter rows, ewes in both twin lamb shelter types avoided the areas close to the shelter before and after lambing (Hedgerows-2.5 m; Shrubs- 6.25 m) and single bearing ewes showed no preference for or against these areas. With a high proportion of twin bearing ewes lambing close to the shelter, a design that reduces the potential for ewe and offspring separation while providing good shelter will offer the greatest potential reduction in newborn twin lamb mortality arising from exposure.

Effect of Tramadol on Rabbit Uterine Contractile Activity Induced in Late Pregnancy.

Effect of Tramadol infusion (5 mg/ml) on oxytocin-induced uterine contractile activity was studied in chronic experiment on female rabbits with different degrees of biological readiness for parturition. In case of sufficient biological readiness for parturition, Tramadol did not change the number of uterine contractions, but increased the amplitude and duration of each contraction against the background of increased creatine phosphate consumption by the myometrium. At the same time, Tramadol infusion to females without biological readiness for partirition suppressed induced uterine contractile activity by reducing the amplitude of each uterine contraction.

Is prophylactic tranexamic acid administration effective and safe for postpartum hemorrhage prevention?: A systematic review and meta-analysis.

To assess the efficacy and safety of tranexamic acid (TA) in reducing blood loss and lowering transfusion needs for patients undergoing caesarean section (CS) or vaginal delivery (VD).

Successful covered stent-graft repair in symptomatic renal artery aneurysm early after childbirth.

Renal artery aneurysm (RAA) rupture during pregnancy is a rare but life-threatening event and few cases have been reported in literature. Currently the best approach, endovascular or surgical, seems to be under discussion. A case of a 31-year-old woman with a symptomatic right RAA detected three days after childbirth is reported. A successful endovascular repair by a covered stent-graft was performed.

Comparable risk of childhood asthma after vaginal delivery and emergency caesarean section.

Caesarean section is thought to be a risk factor for childhood asthma, but this association may be caused by confounding from, for instance, familial factors. To address this problem, we used twin pairs to assess the risk of childhood asthma after emergency caesarean section.

The determinants of essential newborn care for home births in Bangladesh.

To examine the association of sociodemographic, antenatal and delivery care factors with the essential newborn care (ENC) practices of neonates born at home in Bangladesh.

Successful foaling by a Standardbred mare with a ruptured prepubic tendon.

A 12-year-old Standardbred mare was diagnosed with a ruptured prepubic tendon 1 month prepartum. The mare was treated with analgesia, stall rest, and an abdominal support wrap that was tightened daily. Both a live foal born 1 month later and the mare are doing well.

Uterine blood flow in sheep and goats during the peri-parturient period assessed by transrectal Doppler sonography.

The aim of the present study was to evaluate uterine blood flow (UBF) during the postpartum period in small ruminants. The study involved measures of UBF in 5 ewes and 5 goats during the first 4 weeks after parturition. Transrectal quantification of UBF was assessed by determining the diameter (DM), time averaged mean velocity (TAMEAN), blood flow volume (BFV), blood flow acceleration (ACCE) and pulsatility index (PI) in the uterine arteries ipsilateral to the previously gravid uterine horn(s) at Wk 20 of gestation and every 3days from the day of parturition (D 0) until Day 27 postpartum (D 27). The diameters of the uterine arteries decreased (P<0.01) in both species during the postpartum period. The results revealed decreases (P<0.0001) in BFV, ACCE and TAMEAN, while PI increased during the postpartum period in both sheep and goats. Furthermore, there were positive correlations (P<0.05) between blood flow parameters in sheep and goats, respectively (BFV and DM, r=0.62 and 0.58; BFV and ACCE, r=0.32 and 0.26; BFV and TAMEAN, r=0.51 and 0.37). There were negative correlations (P<0.05) between PI and other parameters (PI and BFV, r=-0.39 and -0.36; PI and DM, r=-0.54 and -0.24; PI and ACCE, r=-0.58 and -0.48; and PI and TAMEAN, r=-0.80 and -0.79) in sheep and goats, respectively. Altogether, these results indicate that non-invasive Doppler ultrasound parameters provide important information toward understanding changes in the vasculature and its perfusion of the uterus during the postpartum period in sheep and goats.

Authors' reply re: Does the Epi-No birth trainer prevent vaginal birth-related pelvic floor trauma? A multicenter prospective randomised controlled trial.

Editor's reply re: Does the Epi-No birth trainer prevent vaginal birth-related pelvic floor trauma? A multicenter prospective randomised controlled trial.

Position for labor and birth: State of knowledge and biomechanical perspectives.

This review aims to examine how childbirth position during labour affects maternal, fetal and neonatal outcomes. Epidemiological data suggest that vertical birthing positions have many benefits. But when we consider the players and mechanisms of delivery, including the forces generated to move the fetus and obstacles to its progression, many questions remain about the advantage of one position over another. Thus, childbirth could be considered in a way as an athletic feat that probably requires the choice of optimal positions. These should be individually suited to each woman at different stage of labour to improve its efficiency and effectiveness. Tweetable abstract: Beyond epidemiological data, biomechanical investigations is necessary to assess birth's position.

The good stress of being born.

Characterization of the motor performance of newborns in a neonatal unit of tertiary level.

To characterize the motor performance of newborns in a neonatal unit of tertiary level and compare the results to the values recommended by the Test of Infant Motor Performance (TIMP).

Home births in the context of free health care: The case of Kaya health district in Burkina Faso.

To identify the factors associated with home births in the Kaya health district in Burkina Faso, where child delivery was free of charge between 2007 and 2011.

Trends and changes in home deliveries in Kassena-Nankana districts in northern Ghana: Results from repeated cross-sectional surveys.

To investigate trends and changes in home deliveries in northern Ghana following the implementation of interventions targeting common barriers to utilization of health services.

Astrophysics: Birth of stellar siblings.

Village midwives and their changing roles in Brunei Darussalam: A qualitative study.

There are lay midwives worldwide, interchangeably and universally called traditional birth attendants or traditional midwives by organisations such as the World Health Organization and the International Confederation of Midwives.

Women's experience of childbirth - A five year follow-up of the randomised controlled trial "Ready for Child Trial".

Few studies have assessed the long term perspective of women's childbirth experience as well as studying women's individual birth experience over time.

Good practices according to WHO's recommendation for normal labor and birth and women's assessment of the care received: the "birth in Brazil" national research study, 2011/2012.

The World Health Organization recommends good practices for the conduct of uncomplicated labor and birth, with the aim of improving the quality of and assessment by women of childbirth care. The aim of this study was to evaluate the association between adoption of good practices according to WHO's recommendation for normal labor and birth and assessment by women of the care received.

Factors associated with maternal near miss in childbirth and the postpartum period: findings from the birth in Brazil National Survey, 2011-2012.

Maternal near-miss (MNM) audits are considered a useful approach to improving maternal healthcare. The aim of this study was to evaluate the factors associated with maternal near-miss cases in childbirth and the postpartum period in Brazil.

Adequacy of public maternal care services in Brazil.

In Brazil, hospital childbirth care is available to all, but differences in access and quality of care result in inequalities of maternal health. The objective of this study is to assess the infrastructure and staffing of publicly financed labor and birth care in Brazil and its adequacy according to clinical and obstetric conditions potentially associated with obstetric emergencies.

Factors associated with unintended pregnancy in Brazil: cross-sectional results from the Birth in Brazil National Survey, 2011/2012.

Unintended pregnancy, a pregnancy that have been either unwanted or mistimed, is a serious public health issue in Brazil. It is reported for more than half of women who gave birth in the country, but the characteristics of women who conceive unintentionally are rarely documented. The aim of this study is to analyse the prevalence and the association between unintended pregnancy and a set of sociodemographic characteristics, individual-level variables and history of obstetric outcomes.

Use of Robson classification to assess cesarean section rate in Brazil: the role of source of payment for childbirth.

Cesarean section (CS) rates are increasing worldwide but there is some concern with this trend because of potential maternal and perinatal risks. The Robson classification is the standard method to monitor and compare CS rates. Our objective was to analyze CS rates in Brazil according to source of payment for childbirth (public or private) using the Robson classification.

Parturition effects on reproductive health in the gilt and sow.

In this review, we address significant characteristics of parturition in the pig and their connection to post-partum reproductive health and fertility. We discuss the normal physiology and behaviour around parturition and the effect of the second phase (expulsion of foetuses) on the third phase of parturition (expulsion of foetal membranes). In addition, we intend to cover retained placenta, and the connection to post-partum uterine health and fertility in the contemporary prolific sow. We also explore factors that support successful parturition or can cause potential problems. Successful parturition in the pig includes the possibility to express adequate maternal behaviour, rapid expulsion of the piglets, complete expulsion of the placenta, neonatal activity and colostrum intake. Abnormal incidents during any phase of parturition can cause subsequent problems. Duration of the expulsion phase of foetuses can be used as a simple measure of whether parturition is considered successful. Prolonged parturition can impair health of the sow and piglet and fertility after weaning. New insights, such as adding more fibre to sow diets during pregnancy, and especially during the period prior to farrowing, may prevent constipation, increase water intake of the sow around parturition and increase milk intake and performance of piglets. Maternal characteristics, including maternal behaviour, ease of parturition, colostrum production and piglet quality parameters, may be utilized to improve success rate of reproductive management during farrowing and early lactation. Additionally, we share some of the recent developments in methods, including ultrasonography in evaluation of post-partum uterine health. In conclusion, successful farrowing is of the greatest importance for reproductive health of the sow and survival of the piglets. We suggest connections exist among prolonged farrowing and yield of colostrum, retained placenta, development of PDS, and impaired involution of the uterus and reduced subsequent fertility.

A Term Infant of Neonatal Toxic Shock Syndrome-Like Exanthematous Disease Complicated with Hemophagocytic Syndrome.

Neonatal toxic shock syndrome-like exanthematous disease (NTED) is a newly recognized neonatal infectious disease, caused by the superantigen toxic shock syndrome toxin-1 (TSST-1). TSST-1 is mainly produced by methicillin-resistant Staphylococcus aureus, and the immune responses to TSST-1 are known to cause toxic shock syndrome, a life-threatening infectious disease. The clinical symptoms of NTED are skin rash, fever, and thrombocytopenia, but severe thrombocytopenia is rare in term infants with NTED. Although the cause of NTED is the same as that of toxic shock syndrome, the clinical symptoms of NTED are milder than toxic shock syndrome. The mild phenotype of NTED has been explained by selectively elevated serum levels of anti-inflammatory cytokine interleukin (IL)-10, which suppress immune responses to TSST-1. In the present study, we report a term female infant of NTED complicated with hemophagocytic syndrome (HPS). HPS is characterized by systemic inflammation and hemophagocytosis, caused by uncontrolled activation of T cells and macrophages. The serum IL-10 level of the patient at 4 days of age was relatively low (67 pg/mL) for NTED but still higher than normal controls (< 2.0 pg/mL). The patient also showed severe thrombocytopenia. We speculate that the serum IL-10 level of the patient was enough to supress immune responses to TSST-1, thereby resulting in NTED, but not enough to suppress the onset of HPS. This is the first reported case of NTED complicated with HPS. If a physician encounters an NTED patient with severe cytopenia, microscopic examination of peripheral blood smear should be carried out to exclude HPS.

Giving a voice to millions: developing the WHO application of ICD-10 to deaths during the perinatal period: ICD-PM.

Ocular morphology and visual function in relation to general growth in moderate-to-late preterm school-aged children.

To study ocular morphology and visual function in relation to general growth in moderate-to-late preterm (MLP) children.

Autumn season birth is associated with a lower frequency of diagnosis of unprovoked deep vein thrombosis in the emergency department.

A significant association was described between lifetime frequency of several human diseases, including cardiovascular disorders, and birth season. We performed a retrospective study to establish whether an association exists between birth season and frequency of venous thromboembolism diagnosed in the emergency department. The study population consisted of all consecutive patients diagnosed with venous thromboembolism at the emergency department of the University Hospital of Parma (Italy) during the year 2014. A total number of 400 patients (217 women and 183 men; mean age 70 ± 18 years) received a final diagnosis of venous thromboembolism throughout the study period. The lowest frequency of diagnoses was observed in patients born in autumn, whereas a higher frequency was observed in those born in spring or summer. When compared with the frequency of births in the same geographical area, patients born in spring and summer exhibited a 30 and 25% higher risk of venous thromboembolism compared with those having autumn birth. A similar trend was observed in patients with unprovoked thrombosis, but not in those with provoked thrombosis. A subanalysis of patients with unprovoked deep vein thrombosis revealed that both spring birth (relative risk 1.49, 95% confidence interval 1.04-2.14) and summer birth (relative risk 1.46, 95% confidence interval 1.01-2.09) were significant risk factors for this condition compared with autumn birth. Although further studies are needed to confirm these original findings, it seems reasonable to hypothesize that birth season may influence the lifetime risk of venous thromboembolism, especially of unprovoked deep vein thrombosis.