Membrane stripping in group B streptococcus carriers does not impede adequate intrapartum antibiotic prophylaxis: a retrospective study

Objective

Membrane stripping in group B streptococcus (GBS) carriers poses an increased risk of inadequate antibiotic prophylaxis, potentially due to accelerated labor, thereby potentially impacting the management of GBS colonization during delivery. We compared the adequacy of intrapartum antibiotic prophylaxis between pregnant women colonized with GBS, who underwent membrane stripping and those who did not. The study aimed to determine whether the performance of membrane stripping, by potentially shortening labor duration, increases the risk of inadequate antibiotic prophylaxis dispensation.

Study design

A retrospective cohort study was conducted on GBS screen-positive women with a full-term singleton pregnancy in cephalic presentation, who were eligible for vaginal delivery. The exposed group consisted of women who underwent membrane stripping, while the unexposed group consisted of women who did not undergo membrane stripping. The primary outcome was defined as inadequate duration of antibiotic prophylaxis during labor, wherein less than 4 h of beta-lactam antibiotics were administered prior to delivery. Neonatal outcome was compared between the groups.

Results

This retrospective cohort study comprised 1,609 women, with 129 in the exposed group (stripping group) and 1,480 in the unexposed group (no stripping group). Adequate intrapartum antibiotic prophylaxis was received by 64.3% (83/129) of the exposed group, compared to 46.9% (694/1,480) of the unexposed group (p = 0.003). Membrane stripping was associated with increased odds of receiving adequate prophylaxis (OR 1.897, 95% CI 1.185-3.037, p = 0.008). After excluding women who presented to the labor ward in active labor and delivered in less than 4 h, both the exposed and unexposed groups had similarly high rates of adequate intrapartum antibiotic prophylaxis (87.5% vs. 85.8%, respectively). No significant difference was observed in adverse neonatal outcomes between the groups.

Conclusion

The provision of membrane stripping did not impede adequate intrapartum antibiotic prophylaxis and was correlated with a higher rate of sufficient prophylaxis in comparison to non-swept patients. These observations suggest that membrane stripping can be considered a safe option for ensuring adequate antibiotic prophylaxis in women colonized with GBS.

An Ominous Case of Uterine Rupture in an Unscarred Womb and Its Subsequent Management

Uterine rupture is a rare but critical obstetric complication that demands a swift and decisive intervention to ensure the well-being of the mother and fetus. We present a case report detailing the surgical management of a bizarre uterine rupture in a multigravida female with two previous vaginal deliveries and a previously unscarred uterus. This case highlights the challenges of treating and diagnosing, particularly in the Indian setting, an antenatally unregistered patient with rare obstetrical complications. Emphasizing the clinical challenges faced and the multidisciplinary approach employed for optimal outcomes, this report underscores the importance of a high degree of suspicion, early diagnosis, timely intervention, and comprehensive intraoperative and postoperative care in addressing this rare obstetric catastrophic event. This article's main focus is multicentric, aiming to showcase the obstacles to maintaining low maternal mortality and morbidity, the presence of inadequate awareness in society, and the importance of multimodal treatment and planning.

Is Parity a Risk Factor for Late Preterm Birth? Results from a Large Cohort Study

Most preterm births occur in the late preterm period. While prematurity-related adverse outcomes are significantly diminished when birth occurs during this period, these infants are still at increased risk of complications. Parity affects the incidence of obstetric complications. The purpose of this study was to determine whether parity impacts the risk of spontaneous late preterm birth (SLPTB) and associated complications. A retrospective observational cohort study was conducted. Patients were divided into three study groups according to parity. The primary outcome was the rate of SLPTB in each group. Secondary outcomes were unplanned cesarean delivery (UCD), prolonged third stage of labor respiratory distress syndrome (RDS), transient tachypnea of the newborn (TTN), intraventricular hemorrhage (IVH), neonatal hypoglycemia, duration of NICU admission, neonatal death, and composite adverse neonatal outcome (CANO). Primiparas were more likely to have SLPTB, UCD, and CANO compared to multiparas (2.6% vs. 1.9% OR 1.5 [1.3-1.7] p < 0.01) (4.1% vs. 1.3% OR 2.7 [1.2, 5.9] p < 0.01) (8.5% vs. 4.2 OR 2.1 [1.3-3.5] p = 0.002) and grandmultiparas (2.6% vs. 1.7% OR 1.4 [1.2-1.5] p < 0.001) 8.5% vs. 4.4% OR 2.0 [1.1, 3.8], p = 0.01) but no difference in UCD compared to grandmultiparas (4.1% vs. 3.3% OR 1.2 [0.6-2.7] p = 0.28). Primiparas are at increased risk of SLPTB and UCD, and this is accompanied by an increased risk of adverse neonatal outcomes.

Ultrasonographical Evaluation of Placenta Previa in Scarred and Unscarred Uterus in a Tertiary Care Centre

Objectives Placenta previa is characterised as the placenta implant in the lower uterine segment, wholly or partially covering the internal os. Uterine scars from surgical operations are a potential factor of placenta previa. The present study aims to estimate the role of ultrasound in determining the incidence of placenta previa in the scarred and unscarred uterus. Also, it aims to evaluate the types of placenta previa in the scarred and unscarred uterus. Methods This hospital-based, prospective, observational study was performed from September 2021 to August 2022 among patients referred to the Department of Radiology, Fakhruddin Ali Ahmed Medical College and Hospital (FAAMCH), Barpeta, Assam. Written informed consent was obtained from the subjects. Transabdominal and transvaginal ultrasonography methods were used to assess placenta previa. The data analysis was performed using Statistical Package for the Social Sciences (SPSS) version 21 (IBM Corp., Armonk, NY) considering a p-value < 0.05 as significant. Results Out of the 517 subjects with bleeding per vagina, 41 (7.9%) were diagnosed with placenta previa by ultrasonography. The mean maternal age was 27.80 ± 5.36 years, and the most prevalent age group was 20-24 years (31.71%). The majority (70.73%) of cases had scarred uterus. The most prevalent placental position was fundo-body anterior. Complete placenta previa was present in 26% of the total cases in the present study. Conclusion The incidence of placenta previa in the scarred uterus was higher than that of the unscarred uterus. The high prevalence of placenta previa in women with scarred uterus necessitates improved monitoring and management to avoid disastrous outcomes.

Clinical outcomes of hereditary angioedema on multiparous women

OBJECTIVE

Significant concerns for patients with hereditary angioedema (HAE) include hormonal fluctuations and drug safety during pregnancy. The impact of the disease on childbearing in multiparous women remains to be elucidated. We aimed to investigate the clinical course and impacts of multiparity on HAE patients.

STUDY DESIGN

This observational study included 15 multiparous women with HAE; a total of 88 pregnancies were assessed using a questionnaire and the patient's medical records.

RESULTS

The median age was 36 (IQR, 33-39). Of 72 resulted in healthy babies without any congenital abnormalities. In sixteen pregnancies, 12 (13.6%) ended with spontaneous abortion; three resulted in stillbirth and one neonatal death. Two-thirds of the patients (n = 10) enounced a worsening in the frequency of angioedema attacks during pregnancy. There was no statistically significant difference compared with the nonpregnant period (p = 0.283). One-fifth of the patients (n = 3) reported alleviation in attacks. While most deliveries were vaginally (n = 57 babies), 19 deliveries in six patients were by cesarean section. None of the patients were aware of the diagnosis of HAE prior to their first pregnancies. After the diagnosis was made, eight patients received 263 vials of plasma-derived C1-inhibitor concentrate during a total of 13 pregnancies. No adverse events were reported.

CONCLUSION

We conclude that our results on clinical course and outcomes of HAE in multiparous patients are consistent with the literature. A greater focus on multiparous HAE patients could produce exciting findings.

Cardiovascular disease risk factors and health behaviors of ultra-Orthodox Jewish women in Israel: a comparison study

Objectives: Women from low socio-economic, culturally insular populations are at increased risk for cardiovascular disease (CVD). The ultra-Orthodox Jewish (UOJ) community in Israel is a rapidly growing low socio-economic, insular, cultural-ethnic minority with numerous obstacles to health. The current cross-sectional study investigates CVD-related health behaviors and risk factors in a sample of UOJ females, comparing sample characteristics with the general population. Design: Self-administered questionnaires completed by a cluster randomized sample of 239 UOJ women included demographics, CVD-related health behaviors (consumption of fruit, vegetables, and sweetened beverages; hours of sleep; secondhand smoke exposure; and physical activity engagement) and risk factors (BMI, reported diagnoses of diabetes, high blood pressure, and heart disease). Results: Compared with the general population, UOJ women were less likely to consume 5 fruits and vegetables a day (12.7% vs. 24.3%, p < .001); more likely to consume ≥ 5 cups of sweetened beverages a week (18.6% vs. 12.6%, p = .019), and more likely to sleep <7 hours a night (62.0% vs. 50.6%, p = .002). UOJ women also reported less secondhand smoke exposure (7.2% vs. 51.4%, p < .001) and higher rates of physical activity recommendation adherence (60.1% vs. 25.6%, p < .0001) than the general population. Obesity was higher in UOJ women (24.3% vs. 16.1%, p < .0001). Increased parity and reduced moderate physical activity were associated with increased BMI. Increased parity was also associated with reduced sleep. Grand multiparous women (a 68% prevalence rate), in particular, were more likely to be overweight or obese than women with less than 5 children. Conclusions: This study suggests that health promotion interventions in this population target healthy weight maintenance, nutrition, and physical activity.

Recurrent births (multiparity) lead to permanent changes in cardiac structure

AIM

Although the effects of pregnancy on the cardiovascular system have been covered by many studies, permanent changes in the hearts of multiparous women have not been investigated. This study therefore aimed to examine the permanent structural changes in the cardiac structure of multiparous women via transthoracic echocardiography (TTE).

METHOD

This case-control study included 366 females who had given birth to 1-21 children, and 218 females with no previous deliveries. Anamnesis, physical examination, electrocardiography (ECG), TTE, and exercise stress tests were used to determine whether the cases had additional systemic pathologies. The structural cardiac parameters of all cases were recorded with TTE.

RESULTS

The study revealed that LV mass, LV mass index, left ventricular end diastolic volume (LVEDV), left ventricular end diastolic volume index (LVEDVI) were observed higher in women with five or more deliveries when compared to nulliparous women. On the other hand, ejection fraction (EF) was significantly lower in the same group. Receiver operating curve (ROC) analysis demonstrated that the prediction sensitivity for the presence of eccentric hypertrophy was 74% among women who had given >10.5 births, and its specificity was 97.8% (AUC: 0.949, 95% CI 0.905-0.993; p < 0.0001).

CONCLUSION

The results showed that women with recurrent births had increased left ventricular end diastolic volume, left ventricular total mass in myocardium and decreased EF due to increased end diastolic volume. The results also showed delivering at frequent intervals (especially the birth of 11 or more) may be one of the causes of eccentric hypertrophy, in women of the low-to-middle income countries.

Stress urinary incontinence among Jordanian women living in rural areas: Prevalence, associated factors and self-management behaviours

Objectives: To assess the prevalence of stress urinary incontinence (SUI) among Jordanian women aged 35–65 years living in in rural areas and its associated risk factors.

Patients and methods: A cross-sectional study utilising a convenience sample of 1000 non-pregnant women who were recruited from healthcare centres and community settings. Participants completed a structured questionnaire that included demographic and gynaecological data, and questions about SUI. Descriptive analysis and logistic regression were used to analyse the data.

Results: Overall, 551 women (55.1%) reported having SUI with a duration of 37.9–47.6 months. The mean age of the women was 45.38 years and 29.6% were post-menopausal. Moreover, 40.6% were overweight, 38.9% obese, and 16.9% were smokers. Married women comprised 81.8%; with 37.1% having four to six children and 92.8% had a normal delivery, whereas 28% had a history of caesarean section. Coughing was the major precipitating factor for SUI (87.7%). In addition, 64.8% of women with SUI did not avoid activities that precipitated SUI such as housekeeping and lifting, and 78.6% did not seek any medical care. The major significant correlates for SUI were: high body mass index (odds ratio [OR] 2.506, 95% confidence interval [CI] 1.744–3.600, P < 0.001), being aged >50 years (OR 1.716, 95% CI 1.183–2.489, P = 0.004), a history of gynaecological/pelvic surgery (OR 1.631, 95% CI 1.206–2.205, P = 0.001), and vaginal delivery (OR 1.052, 95% CI 1.004–1.101, P = 0.033).

Conclusion: SUI prevalence among Jordanian women is high with symptoms reported in more than a half of study participants. Older age, obesity, a history of gynaecological surgery, and history of vaginal delivery were the major correlates of SUI. Public awareness is needed to identify the condition for early diagnosis and treatment of SUI.

Abbreviations: BMI: high body mass index; OR: odds ratio; (M)(S)(U)UI: (mixed) (stress) (urge) urinary incontinence

India needs a resilient cancer program

Background

We analyzed the trends for two important cancers affecting females, breast cancer and cervical cancer, using the Indian cancer registry data and correlated the findings with selected relevant sociodemographic and behavioral indicators.

Methods

We examined National Family Health Survey data for the respective states in which registries are located, on relevant indicators like multiparity, early childbearing, cervical examination, multiple sexual partners/high-risk sexual behavior, and HIV prevalence (for cervical cancer), multiparity, early childbearing, duration of breastfeeding, overweight, alcohol use, and clinical breast examination (for breast cancer). We used Global Adult Tobacco Survey smoking data.

Results

The top four positions in cancer cervix were all in registries from northeast India with a higher proportion of multiparous women (≥3 births; around 40%), whereas three major metros in the south and the national capital of Delhi, all with a relatively low proportion of multiparous women (11-25%) topped the chart for breast cancer. Overweight/obesity was higher in states with a higher incidence of breast cancer (23.3-31%) compared to states with a lower incidence (12.2-16%). No clear patterns emerged with regard to alcohol consumption, duration of breastfeeding or clinical breast examination.

Conclusion

The shift in the childbearing age group explains the increasing breast cancer rates in urban areas, whereas the persisting higher rate of multiparity explains higher cervical cancer rates especially in underserved states in the northeast. India needs to invest in transforming its cancer control program to be a more resilient one with a focus on screening and prevention.

Analgesic efficacy of remifentanil patient-controlled analgesia versus combined spinal-epidural technique in multiparous women during labour

OBJECTIVES

To compare the analgesic profile of remifentanil patient-controlled analgesia (RPCA) and combined spinal-epidural analgesia technique (CSEA) in multiparous women during the entire labour. We hypothesized that CSEA would provide a better and more sustained pain reduction than RPCA.

MATERIAL AND METHODS

A prospective observational trial under ID NCT02963337 at a university hospital in Slovenia 2017-2018. Analgesic efficacy, satisfaction with pain-relief, adverse effects, labour progress, and outcomes between RPCA (80) and CSEA (81) were compared.

RESULTS

CSEA provided significantly lower pain scores during the entire labour. Compared to baseline, significant pain reduction was recorded in both groups after 15 min. No difference was recorded compared to baseline with RPCA and CSEA after 45 and 90 mins, respectively. CSEA provided higher satisfaction than RPCA (5 [5-5] vs 5 [4-5], p < 0.0001). More patients with CSEA opted for the same technique for the next labour [CSEA; 77 (95%) vs RPCA; 65 (81%), p = 0.003]. No crossovers were observed. RPCA was associated with desaturation (34%), bradypnea (21%) and apnoea (25%), which were transitional and easily managed. None had severe sedation. No differences were recorded in labour progress and outcomes. Apgar scores were reassuring in all neonates (> 8). None had umbilical artery pH < 7.0.

CONCLUSIONS

In multiparas, CSEA provided superior analgesia and satisfaction than RPCA. Nevertheless, RPCA provided a satisfactory experience, suggesting it could be used when neuraxial analgesia is not available, preferred, or contraindicated. In that case, constant presence of midwife is mandatory for management of clinically significant hypoventilation.

Giving Birth to Another Child: Women's Perceptions of Their Childbirth Experiences in Quebec

Medical interventions during childbirth are on the rise and many women in Quebec emerge from a first childbirth with the desire to live a different, less medicalized subsequent experience. To address how multiparity can affect the ways of giving birth, we conducted 20 in-depth qualitative interviews with multiparas who gave birth to their last child in various birthing environments in the 6 months prior to this study. Using tri-level coding, we inductively analyzed the transcripts, which showed an evolution in the participants' perspectives. A spiral effect seems to be in place: The more women feel at ease with childbirth, the more they seek to establish a context in which they feel even more at ease. However, some women had to go through multiple birth experiences before being able to assert themselves and consider their perspectives regarding their own experiences as legitimate.

Common Complications of Cesarean Section During the Year 2017 in King Abdulaziz Medical City, Jeddah, Saudi Arabia

Cesarean section (CS) is one of the most well-known major obstetrics surgeries and one of the oldest operations in the area of abdominal surgery. It is used for the purpose of delivering the newborn and the placenta through the abdominal wall incision (laparotomy) as well as Uterine incision (hysterotomy), followed by suture of the uterus and abdominal wall layers. Most common maternal complications internationally, according to literature were bleeding and wound infection. Most common fetal complications according to the literature were depressed Appearance, Pulse, Grimace, Activity, and Respiration (APGAR) score, low blood pH and ICU admissions. The aim of this study is to determine the most common CS complications among all the deliveries at King Abdulaziz Medical City (KAMC) in Jeddah in 2017 and to estimate maternal and fetal complication rates following CS. Comparing the rate of complication between residents and non-residents physicians performing a CS was tested as a secondary outcome. To the best of our knowledge, this is a novel research in this medical center at KAMC Jeddah that will aid in quality improvement in both clinical services and training activities of residents. The maternal and fetal complication rates were assessed in a cross-sectional chart review study. In order for this method to be achieved, a secondary data collection sheet was constructed to collect all eligible patient health records. This literature review was based on estimating the rate of CS complications for the mothers and their neonates that founded approximately 7% and 6%, respectively, where the procedure was either performed electively or emergently within the period of 1 January to 31 December 2017. Also, all patients with medical and surgical conditions were included while intrauterine fetal death was excluded. The most common maternal complications documented in our population were bleeding and wound extension, while the most common fetal complications were low APGAR score and NICU admissions. No statistical significance was found in either complications in terms of the correlation between demographical factors, maternal health conditions and gravida status. As for the secondary objective, the association between operator level of training and rate of complications revealed a higher percentage rate of maternal and fetal complications among consultants, which were 6.2% and 8.2%, respectively, mainly because the number and complexity of their cases in comparison to cases held by residents and others.

Trial of labor after cesarean delivery in grand multiparous women: maternal and neonatal outcomes

OBJECTIVE

To evaluate success rates of vaginal birth after cesarean (VBAC) and maternal and neonatal outcomes associated with trial of labor after cesarean in grand multiparous women.

STUDY DESIGN

A retrospective computerized data base study was conducted at a single tertiary center, between 2005 and 2019. The study compared the maternal and neonatal outcomes of trial of labor after cesarean delivery in grand multiparous women (parity ≥ 6) as compared to multiparous women (parity: 3-5). Comparison analysis was performed by univariate analysis and followed by adjusted multiple logistic regression models.

RESULTS

During the study period we identified 2749 and 4294 cases of trial of labor after cesarean in grand multiparous and multiparas, respectively. VBAC was observed in 94.6% of the grand multiparous as compared to 96.5% in the multiparous group, p < .01. The grand multiparous group had a higher rate of postpartum hemorrhage (3 vs. 2.2%, p = .03) and prolonged postpartum hospitalization (1.4 vs. 0.7%, p < .01). The rates of uterine rupture (0.3 vs. 0.2%, p=.50), peripartum hysterectomy (0.1 vs. 0%, p = .33) and adverse neonatal outcomes were comparable between the groups.

CONCLUSION

Trial of labor after cesarean in grand multiparous women is associated with favorable maternal and neonatal outcomes. Consideration and awareness should be given for the increased risk for postpartum hemorrhage, not associated with uterine rupture.

Pregnancy in women with previous two healthy children, associated factors, and acceptability of contraception among these women: A questionnaire-based, cross-sectional KAP study in world's second most populated country advocating two-child norm

Introduction:

Indian subcontinent carries 17 % of world's population, being the second largest populated country. The maternal mortality rate of the country is still high. The study was aimed to study factors leading to pregnancy in women with previous two living children and their knowledge about limiting family and their practice for use of contraceptives.

Methods:

Questionnaire-based study was conducted in the Department of Obstetrics and Gynaecology.

Results:

961 pregnant women attending antenatal outpatient department were interrogated and amongst them 167 (17.3 %) multigravida with previous two healthy children were enrolled in study and were asked to document in Questionnaire. Reasons for current pregnancy were gender bias, no desire to limit family, incorrect contraceptive use, contraceptive failure, doctor's mistake and religious belief. Desire for male child emerged as most common reason (37%) followed by improper or no use of contraception. Most significant associated factor was poor education of female partner (p = 0.010).

Conclusion:

This cross-sectional study evaluated the possible reasons of multiparity. We conclude that preference for male gender child is still very much prevalent in India, along with unmet need of family planning. Improving education of women might help to change attitude towards birth spacing and family size.

Multiparity, Brain Atrophy, and Cognitive Decline

Background

Multiparity – grand multiparity (i.e., five or more childbirths) in particular – has been reported to have an association with increased risk of Alzheimer’s disease (AD) dementia or related cognitive decline in women. However, the pathological links underlying this relationship are still unknown. This study was conducted to examine the relationships of multiparity with cerebral amyloid-beta (Aβ) deposition, brain atrophy, and white matter hyperintensities (WMHs).

Methods

In this study, total of 237 older women with 148 cognitively normal and 89 mild cognitive impairment from the Korean Brain Aging Study for Early Diagnosis and Prediction of Alzheimer’s Disease (KBASE) were included. Participants underwent clinical and neuropsychological assessments in addition to ¹¹C-labeled Pittsburgh Compound B positron emission tomography, and magnetic resonance imaging. The associations of parity with Aβ deposition, hippocampal volume, cortical volume, WMH volume and mini-mental status examination (MMSE) score were examined.

Results

Participants with grand multiparity showed significantly reduced adjusted hippocampal volume, spatial pattern of atrophy for recognition of AD volume and spatial pattern of atrophy for recognition of brain aging volume even after controlling for potential confounders. Furthermore, MMSE score was also significantly lower in this group. In contrast, grand multiparity did not show any association with global Aβ retention, Aβ positivity rate, or WMH volume, regardless of covariates.

Conclusion

Our findings suggest that grand multiparity contributes to cognitive decline or increased dementia risk in older women by aggravating amyloid-independent hippocampal or cortical atrophy.

Pruritic Periumbilical Plaque as a Presentation of a Rare Perforating Dermatosis

Perforating dermatoses are characterized by transepidermal elimination of altered dermal components or foreign particles. Owing to their common clinical presentation as umbilicated papules with a keratotic plug, histopathology and special staining play a very crucial role in the diagnosis. Perforating calcific elastosis, (periumbilical perforating pseudoxanthoma elasticum), an uncommon acquired localized cutaneous dermatoses, is characterized by transepidermal elimination of modified elastic fibres. It is usually seen in middle-aged obese multiparous women as well-defined periumbilical hyperpigmented atrophic plaques. We report a case of a 66-year-old female who presented with a mildly pruritic hyperpigmented periumbilical plaque of 2 years duration. Histopathology studies revealed multiple fragmented, thick, short, and curly eosinophilic fibers; along with granular basophilic material in the dermis, which stained positive for calcium and elastin, thus clinching the diagnosis of perforating calcific elastosis. There were no features of hereditary pseudoxanthoma elasticum. We report this case for its rarity.

The Association of Multiparity with Lung Function and Chronic Obstructive Pulmonary Disease-Related Phenotypes

BACKGROUND

Apparent increased female susceptibility to chronic obstructive pulmonary disease (COPD) suggests sex hormones modulate disease pathogenesis. Little is known about associations between multiparity and lung function in smokers.

RESEARCH QUESTION

We hypothesized that multiparity is associated with lung function and measures of emphysema and airway disease.

STUDY DESIGN AND METHODS

Utilizing female participants from the 5-year follow up of the COPD Genetic Epidemiology (COPDGene^®) study we performed multivariable linear regressions to assess the effect of multiparity and number of pregnancies on forced expiratory volume in 1 second (FEV₁) percentage of predicted (% predicted), FEV₁/forced vital capacity (FVC), percent emphysema on computed tomography (CT) scans, and Pi10, a measure of airway thickening. We sampled never smokers and those with lower smoking exposure from the National Health and Nutrition Examination Survey (NHANES) 2011-2012 dataset.

RESULTS

We included 1820 participants from COPDGene^® and 418 participants from NHANES (321 never smokers, 97 ever smokers). In COPDGene^®, multiparity (beta coefficient [β] = -3.8, 95% confidence interval [CI]: [-6.5, -1.1], p = 0.005) and higher number of pregnancies were associated with lower FEV₁ % predicted. Multiparity was not associated with percent emphysema or Pi10. In individuals with no or mild obstruction, multiparity was associated with lower FEV₁ % predicted. There was an interaction with multiparity and age on FEV₁ % predicted (p = 0.025). In NHANES, there was no association between multiparity and FEV₁ % predicted in never smokers or the lower smoking exposure group.

INTERPRETATION

Multiparity was associated with lower FEV₁ % predicted in current and former smokers in COPDGene^® study participants. These preliminary results emphasize the importance of smoking abstinence in women of child-bearing age.

Experience of Adversity during a First Lactation Modifies Prefrontal Cortex Morphology in Primiparous Female Rats: Lack of Long Term Effects on a Subsequent Lactation

Reproductive experience is associated with morphological and functional plasticity in brain areas important for cognitive and emotional responses, including the infralimbic (IL) medial prefrontal cortex (mPFC). Here we examined whether suboptimal conditions during a first lactation could modify lactation-induced morphological IL mPFC changes, leading to alterations in stress responses and attention and whether any observed effects would persist into a second lactation. Reduced availability of bedding and nesting material (LB) was used to induce unfavorable conditions in primiparous (P) mothers. In normal bedding (NB) conditions, P mothers exhibited high spine number and density on postpartum day (PPD)10, which greatly decreased 2 weeks after weaning of their pups. In contrast, P-LB mothers had a lower spine number and density on PPD10, which markedly increased after weaning. LB exposure did not modify stress responsiveness to a ferret odor on PPD5 in primiparous or in multiparous (M) females. Number of errors and trials to criterion in the attention set shifting task were not modified by a history of adversity in multiparous females, although this group tended to exhibit higher attentional abilities than M-NB females. These results suggest that adversity acutely reduces morphological plasticity in the maternal mPFC during lactation, an effect that is not associated with significant changes in stress responses and/or glucocorticoid production. Medial PFC morphological changes induced by LB subside during a subsequent lactation as does the effect of maternity itself.

Maternal socio-demographic factors associated with low parity and grand multiparity in Nigeria

Parity may be categorized as low parity (one or two births), multiparity (three or four births), and grand multiparity (five or more births). In Nigeria, studies have examined factors associated with parity among women. However, these studies have focused on the associated factors of grand multiparity with near exclusion of associated factors of low parity. This study addressed this knowledge gap by examining maternal socio-demographic factors associated with both low parity and grand multiparity in Nigeria. The study analyzed secondary data from 2013 Nigeria Demographic and Health Survey (NDHS). The weighted sample size was 25,852 women. With the use of Stata (version 14), analyses were performed at three levels. Multinomial logistic regression was applied at the multivariate level. Results showed that many of the studied maternal characteristics were significantly associated with either low parity or grand multiparity. Results further showed that while late age at first marriage, improved education, never experiencing child mortality, and polygyny increased the likelihood of low parity, improved education, polygyny, never experiencing child mortality, late age at first marriage, and higher household wealth reduced the likelihood of grand multiparity. These factors should be given prominence in population and women-centered programs in the country.

Correlation of different parity and school education with acceptance of labor analgesia among antenatal women: A questionnaire-based study

Background and Aim:

Pain relief is nearly regarded as the right of patients in modern day health care. Women undergo excruciating pain during normal vaginal delivery (NVD). However, the acceptance of labor analgesia (LA) has remained very poor. The present study was aimed to assess the correlation of previous exposure to such pain (parity) and school education with LA acceptance.

Methods:

The present comparative study was conducted with a total 400 consented participants. A questionnaire was used to collect sociodemographic variables, acceptance/nonacceptance of LA, and the reasons for not opting for LA in upcoming delivery were noted. Participants were divided into primiparous, multiparous, and nulliparous (control). They were also grouped as per school education and compared taking illiterates as controls. Data are presented in absolute number. Fisher's exact test is used for comparison; P < 0.05 was considered statistically significant.

Results:

Seventy (17.5%) multiparous and 38% primiparous participants were compared with 44.5% nulliparous women. Only 2.75% participants were illiterate. 69.50% were rural inhabitant and 81.50% believed in Hinduism. 87.14% multiparous, 84.21% primiparous, and 88.76% nulliparous women declined LA (P > 0.05). The desire to experience NVD without LA as a reason for nonacceptance was significantly less among primiparous and multiparous as compared to nulliparous (P < 0.0001), but not among literate and illiterate participants (P > 0.295 in all).

Conclusion:

Previous labor pain significantly reduces the desire to experience NVD without LA, but still more than 80% parturients of any parity do not want LA due to one or more reasons. School education has no impact on LA acceptance.

Alterations to maternal cortical and trabecular bone in multiparous middle-aged mice

OBJECTIVES

During the reproductive cycle, altered calcium homeostasis is observed due to variable demand for mineral requirements. This results in increased bone resorption during the time period leading up to parturition and subsequent lactation. During lactation, women will lose 1-3% of bone mineral density per month, which is comparable to the loss experienced on an annual basis post-menopausal. The purpose of this study was to determine the effect of parity on bone formation in middle-aged mice.

METHODS

Mice were mated and grouped by number of parity and compared with age matched nulliparous controls. Measurements were taken of femoral trabecular and cortical bone. Calcium, protein and alkaline phosphatase levels were also measured.

RESULTS

An increase in trabecular bone mineral density was observed when comparing mice that had undergone parity once to the nulliparous control. An overall decrease in trabecular bone mineral density was observed as parity increased from 1 to 5 pregnancies. No alteration was seen in cortical bone formation. No difference was observed when calcium, protein and alkaline phosphatase levels were assessed.

CONCLUSIONS

This study demonstrates that number of parity has an impact on trabecular bone formation in middle-aged mice, with substantial changes in bone density seen among the parous groups.

Multiparity improves outcomes after cerebral ischemia in female mice despite features of increased metabovascular risk

Females show a varying degree of ischemic sensitivity throughout their lifespan, which is not fully explained by hormonal or genetic factors. Epidemiological data suggest that sex-specific life experiences such as pregnancy increase stroke risk. This work evaluated the role of parity on stroke outcome. Age-matched virgin (i.e., nulliparous) and multiparous mice were subjected to 60 min of reversible middle cerebral artery occlusion and evaluated for infarct volume, behavioral recovery, and inflammation. Using an established mating paradigm, fetal microchimeric cells present in maternal mice were also tracked after parturition and stroke. Parity was associated with sedentary behavior, weight gain, and higher triglyceride and cholesterol levels. The multiparous brain exhibited features of immune suppression, with dampened baseline microglial activity. After acute stroke, multiparous mice had smaller infarcts, less glial activation, and less behavioral impairment in the critical recovery window of 72 h. Behavioral recovery was significantly better in multiparous females compared with nulliparous mice 1 mo after stroke. This recovery was accompanied by an increase in poststroke angiogenesis that was correlated with improved performance on sensorimotor and cognitive tests. Multiparous mice had higher levels of VEGF, both at baseline and after stroke. GFP+ fetal cells were detected in the blood and migrated to areas of tissue injury where they adopted endothelial morphology 30 d after injury. Reproductive experience has profound and complex effects on neurovascular health and disease. Inclusion of female mice with reproductive experience in preclinical studies may better reflect the life-long patterning of ischemic stroke risk in women.

Risk factors of uterine rupture with a special interest to uterine fundal pressure

PURPOSE

Uterine rupture is a rare but serious event with a median incidence of 0.09%. Previous uterine surgery is the most common risk factor. The aim of our study was to analyze retrospectively women with uterine rupture during labor and to evaluate postulated risk factors such as uterine fundal pressure (UFP).

METHODS

Twenty thousand one hundred and fifty-two deliveries were analyzed retrospectively. Inclusion criteria were 22 weeks and 0 days-42 weeks and 0 days of gestation, singleton pregnancy and cephalic presentation. Women with primary cesarean section were excluded. A logistic regression analysis adjusting for possible risk factors was conducted and a subgroup analysis of women with unscarred uterus was performed.

RESULTS

Twenty-eight cases of uterine rupture were identified (incidence: 0.14%). Uterine rupture was noticed in multipara patients only. In the multivariate analysis among all study patients, only previous cesarean section remained a statistically significant risk factor [adjusted odds ration (adj. OR) 12.52 confidence interval (CI) 95% 5.21-30.09]. In the subgroup analysis among women with unscarred uterus (n=19,415) three risk factors were associated with uterine rupture: UFP (adj. OR 5.22 CI 95% 1.07-25.55), abnormal placentation (adj. OR 20.82 CI 95% 2.48-175.16) and age at delivery >40 years (adj. OR 4.77 CI 95% 1.44-15.85).

CONCLUSIONS

The main risk factor for uterine rupture in the whole study population is previous uterine surgery. Risk factors in women with unscarred uterus were UFP, abnormal placentation, and age at delivery >40 years. The only factor which can be modified is UFP. We suggest that UFP should be used with caution at least in presence of other supposed risk factors.

Maternal rubella immunity status and pre-eclampsia

PROBLEM

To determine if maternal immune maladaptation associated with pre-eclampsia is reflected in the rubella immunity status.

METHOD OF STUDY

Incidence of pre-eclampsia was compared between rubella non-immune and immune gravidae carrying a singleton pregnancy beyond 24 weeks, taking into account maternal characteristics and reported risk factors for pre-eclampsia.

RESULTS

The 9870 (10.4%) rubella non-immune gravidae among the 95 024 in the cohort exhibited no difference in incidence of underlying medical disorders, but they were slightly but significantly older, shorter, heavier, and had more pre-eclampsia (OR 1.24, 95% CI 1.05-1.47) despite having fewer nulliparas. Regression analysis confirmed an overall association between rubella non-immunity with pre-eclampsia (aOR 1.27, 95% CI 1.06-1.54), which was related to multiparas (aOR 1.42, 95% CI 1.05-1.91) and carrying a male fetus (aOR 1.37, 95% CI 1.06-1.78).

CONCLUSION

The association between rubella non-immunity and pre-eclampsia reflects immune maladaptation in multiparas and toward a male fetus.

Why do multiparous women with a history of vaginal delivery give birth by cesarean section?

OBJECTIVE

A cesarean section (C-section) is performed to deliver a baby through the mother's abdomen. In recent years, the rate of incidences requiring a C-section is steadily increasing all over the world. Advanced maternal age, chronic health problems, multiple pregnancies as a result of the development of assisted reproductive technologies, and an insufficient supplementary health network can be considered as the reasons why mothers and obstetricians prefer a C-section. Our study aimed to identify the risk factors for the need of C-section in women with a history of vaginal delivery.

MATERIAL AND METHODS

238 multiparous women with a history of vaginal birth at 37-42 gestational weeks were enrolled in our study. 110 women had underwent C-section. Control group was chosen randomly from women giving birth by vaginal route.

RESULTS

Overall, 238 multiparous women with a history of vaginal delivery at 37-42 gestational weeks were enrolled in our study. The history of operative delivery, that of labor induction and presence of meconium and the indication of admission to the delivery room were different between groups. A lower Bishop score and biophysical profile, smaller gestational period, and lower birth weight were associated with the group requiring a C-section, whereas older age and a long time interval from the previous birth were associated with the group not requiring a C-section.

CONCLUSION

A strategy involving either labor induction or not could be individualized for each patient to eliminate the risk factors for adverse outcomes. To identify criteria for the standardization of labor management, further studies are needed.

Acute Myocardial Infarction in the First Trimester of Pregnancy in a Great Grand Multiparous Woman with Poorly Controlled Chronic Hypertension

INTRODUCTION

Acute myocardial infarction (MI) in pregnancy is a rare event, usually occurring late in gestation, either in the third trimester or in the puerperium. It is associated with significant maternal and fetal morbidity and mortality. Although diagnosis and management of MI in pregnancy has been discussed in the literature, management of pregnancy following an early antepartum MI, which may have more consequences for the fetus, has not received as much attention.

CASE

A 38-year-old great grand multiparous woman presented to the emergency department complaining of acute onset chest pain. The patient had a history of chronic hypertension and was an active smoker. She was incidentally found to be 5 weeks pregnant. She was diagnosed with an acute MI, which was treated by primary percutaneous coronary intervention. Her subsequent pregnancy course was complicated by poorly controlled chronic hypertension, but she ultimately delivered a healthy newborn at 36 weeks of gestational age.

CONCLUSION

Good pregnancy outcomes are possible after early antepartum MI, especially with early diagnosis, appropriate treatment, and a multidisciplinary team approach to prenatal care. Delivery should occur in a tertiary referral center with experience managing high-risk obstetric patients with cardiac disease.

Association between parity and fistula location in women with obstetric fistula: a multivariate regression analysis

OBJECTIVE

To compare primiparous and multiparous women who develop obstetric fistula (OF) and to assess predictors of fistula location.

DESIGN

Cross-sectional study.

SETTING

Fistula Care Centre at Bwaila Hospital, Lilongwe, Malawi.

POPULATION

Women with OF who presented between September 2011 and July 2014 with a complete obstetric history were eligible for the study.

METHODS

Women with OF were surveyed for their obstetric history. Women were classified as multiparous if prior vaginal or caesarean delivery was reported. The location of the fistula was determined at operation: OF involving the urethra, bladder neck, and midvagina were classified as low; OF involving the vaginal apex, cervix, uterus, and ureters were classified as high.

MAIN OUTCOME MEASURES

Demographic information was compared between primiparous and multiparous women using chi-squared and Mann-Whitney U-tests. Multivariate logistic regression models were implemented to assess the relationship between variables of interest and fistula location.

RESULTS

During the study period, 533 women presented for repair, of which 452 (84.8%) were included in the analysis. The majority (56.6%) were multiparous when the fistula formed. Multiparous women were more likely to have laboured <1 day (62.4 versus 44.5%, P < 0.001), delivered a live-born infant (26.8 versus 17.9%, P = 0.026), and have a high fistula location (37.5 versus 11.2%, P < 0.001). Multiparity [adjusted odds ratio (aOR) = 4.55, 95% confidence interval (CI) 2.27-9.12)] and history of caesarean delivery (aOR = 4.11, 95% CI 2.45-6.89) were associated with development of a high fistula.

CONCLUSIONS

Multiparity was common in our cohort, and these women were more likely to have a high fistula. Additional research is needed to understand the aetiology of high fistula including potential iatrogenic causes.

TWEETABLE ABSTRACT

Multiparity and caesarean delivery were associated with a high tract fistula in our Malawian cohort.

Pregnancy Outcome in Women with Decreased Sensation of Fetal Movements at Term According to Parity

BACKGROUND

Decreased sensation of fetal movements (DFM) is a common maternal complaint. Thus, we aimed to evaluate the association between DFM and pregnancy outcome in singleton gestation at term according to parity.

METHODS

A retrospective cohort study of singleton pregnancies at term between 2008 and 2013. Eligibility was limited to women carrying a fetus with no known structural or chromosomal anomalies, at 37+0/7 to 42+0/7 weeks of gestation. Women presenting to the delivery ward with DFM were compared with women without similar complaints.

RESULTS

Overall, 12,564 nulliparous women and 25,292 multiparous women gave birth during the study period; of them, 300 nulliparous women (2.4%) and 525 multiparous women (2.1%) complained of DFM. For nulliparous women, after adjusting for potential confounders, DFM was associated with antepartum fetal death (aOR 4.6 [95% CI 1.1-19.8]), cesarean delivery (CD) (aOR 1.3 [95% CI 1.01-1.8]), 1-minute Apgar score less than 7 (aOR 2.3 [95% CI 1.5-3.5]) and neonatal seizures (aOR 3.2 [95% CI 1.3-8.2]). For multiparous women, DFM was associated with unscheduled CD (aOR 2.7 [95% CI 1.6-4.6]) and CD indicated by intermediate/abnormal fetal heart rate tracing (aOR 4.8 [95% CI 2.8-8.4]).

CONCLUSIONS

DFM carries different outcomes according to parity. Although for nulliparous women, DFM is associated with increased risk of CD and immediate adverse perinatal outcome, for multiparous women it is associated with increased risk for CD, with no immediate increased risk for adverse perinatal outcome.

The association between maternal parity and birth defects

BACKGROUND

Previous studies observed that first birth is associated with an increased risk of some categories of birth defects. However, multiple statistical tests were conducted and it was unclear which of these associations would be replicated in a larger study. We used a large database to assess the association between maternal parity and 65 birth defects including birth defects that have not been previously studied.

METHODS

Using data from the Texas Birth Defects Registry for years 1999-2009, the risk of a birth defect occurring in a first, third, or fourth or higher birth was compared to the risk of a birth defect occurring in a second birth.

RESULTS

Women having their first birth had significantly increased odds of having an infant with 24 of 65 categories of birth defects when compared to women having their second birth. We also observed associations between first birth and an increased risk of five birth defects not previously reported (small penis, preaxial polydactyly, anomalies of the thoracic vertebrae, anomalies of the lumbar vertebrae, and sacroccygeal anomalies). Women having their third or fourth or higher birth had significantly increased odds of giving birth to infants with five of 65 birth defects when compared to second births.

CONCLUSIONS

Our observations regarding the categories of birth defects that were associated with first births were highly consistent with observations from two previous studies. Research into biological, behavioral, and environmental factors that may increase the risk of specific birth defects among first births is needed to further explore these associations.

The Impact of Multiparity on Uterine Gene Expression and Decidualization in Mice

It has been well established that a previous pregnancy exhibits a beneficial effect on the subsequent pregnancy. However, the underlying mechanisms have not been defined. We hypothesized that multiparity may affect decidualization process during early pregnancy. To test this hypothesis, we analyzed global gene changes associated with multiparity in the mouse uterus using RNA-sequencing (RNA-seq). We identified a total of 131 differentially expressed genes (fold change > 2 and false discovery rate < 0.05), of which 58 were downregulated and 73 genes were upregulated in the second pregnancy (SP) compared to the first pregnancy. Functional clustering analysis showed that genes involved in stress response were significantly enriched. Most importantly, a significant portion of differentially expressed genes, 14 genes or 10.7%, overlapped with the gene list associated with decidualization. Quantitative reverse transcription (RT) polymerase chain reaction (qRT-PCR) analysis confirmed a decreased expression of 4 genes (Klk1, kallikrein 1; H2-Eb1, histocompatibility 2 class II antigen E beta; Mmp7, matrix metallopeptidase 7; Pdpn, podoplanin) and an increase in expression of 2 genes (Thy1, thymus cell antigen 1; Ptgs2, prostaglandin-endoperoxide synthase 2) in SP. Beyond protein-coding genes, we also identified a differentially expressed long noncoding RNA AI506816. Our data provide new insights into the molecular mechanisms underlying the beneficial effect of multiparity.

The effect of preprocedure anxiety levels on postprocedure pain scores in women undergoing hysterosalpingography

BACKGROUND

Hysterosalpingography (HSG) is an invasive, uncomfortable, and painful procedure. Patients often experience considerable anxiety and stress before the procedure. In this study, we aimed to evaluate the effect of preprocedure anxiety on postprocedure pain scores and clinical outcomes in women undergoing HSG.

METHODS

This study was designed as a prospective randomized study. Women undergoing HSG were asked to complete the Beck Anxiety Inventory before the procedure. Patients were classified into two groups according to the anxiety score (Group 1: anxiety score ≤ 25; n = 84 and Group 2: anxiety score > 25, n = 25). All of the patients were asked to state the severity of their pain during the procedure using a visual analogue scale immediately after the procedure. Then, postprocedure pain scores and clinical features were evaluated. Data analyzed were: age, gravidity, parity, durations of marriage and infertility, body mass index, procedure time, amount of contrast media used, operator sex, history of surgery, educational level, and HSG results.

RESULTS

A total of 109 women were enrolled into this prospective study. There was no statistically significant difference between the groups in terms of age, body mass index, durations of marriage and infertility, procedure time, amount of contrast media used, operator sex, history of surgery, educational level, and patency of the one and/or two fallopian tubes (p > 0.05). The median parity and pain scores after the procedure were lower in Group 1 (p < 0.05). There was also a positive correlation between anxiety scores and postprocedure pain scores (r = 0.289, p = 0.002). Receiver operator characteristics curve analysis demonstrated that operator sex was an important risk factor for postprocedure pain in patients with a preprocedure Beck Anxiety Inventory > 25. Logistic regression method demonstrated that higher parity, preprocedure anxiety score > 25, and male operator were risk factors for increased postprocedure visual analogue scale scores.

CONCLUSION

According to this study, preprocedure anxiety levels have an effect on postoperative pain scores in women undergoing HSG procedure. Multiparity, male operator, and higher preprocedure anxiety scores also may have an effect on postoperative pain scores.

Term induction of labor and risk of cesarean delivery by parity

OBJECTIVE

To evaluate the risk of cesarean delivery among both nulliparous and multiparous women undergoing a term induction of labor compared to women that present in spontaneous labor at term.

METHODS

We performed a retrospective cohort study of term (≥37 weeks) singleton pregnancies between 2005 and 2010 comparing women that had an induction to those that presented in spontaneous labor. Multiparity was defined as a prior delivery after 20 weeks' gestation. Chi-square was used to compare categorical variables. Multivariable logistic regression was used to control for confounders. Analyses were stratified by parity.

RESULTS

863 women were included in the analysis. There were 605 inductions (cesarean rate 23%) and 257 spontaneous labor (cesarean rate 7%), OR 3.4, 95% CI [2.1-5.4]. Stratified by parity, nulliparas undergoing induction had an increased cesarean rate compared to spontaneous labor (27% versus 11%, OR 3.13, 95% CI [1.76-5.57]) as did multiparas (13% versus 3%, OR 4.04, 95% CI [1.36-11.94]). This increased risk for cesarean after induction remained in both nulliparous and multiparous women even after controlling for confounders (aOR 2.90, 95% CI [1.60-5.25] and aOR 3.47, 95% CI [1.12-10.67], respectively). Neither starting cervical exam nor indication for induction altered this increased risk.

CONCLUSIONS

The increased risk of cesarean in women undergoing an induction is present regardless of parity and indication for induction. This should be taken into account when counseling women regarding risks of induction, regardless of parity. Future studies should focus on other clinical characteristics of induction that may mitigate this risk.

Impact of pregnancy on the cardiac health of women with prior surgeries for pulmonary valve anomalies

OBJECTIVE

We assessed the impact of pregnancy on long-term cardiac outcomes in women with prior surgery for congenital pulmonary valve anomalies.

STUDY DESIGN

Data on all reproductive age women with prior pulmonary valve repair or replacement, cared for at a tertiary institution over a 10-year period, were analyzed. Kaplan-Meier curves and proportional hazards models were estimated to assess the impact of pregnancy and multiparity on a composite long-term adverse outcome defined as death, heart failure, or unanticipated cardiac surgery. Peripartum cardiac complications were also assessed.

RESULTS

Thirty-three parous and 20 nulliparous, nonpregnant controls with primary pulmonary valve replacement or repair were identified. Among the parous women, there were 95 pregnancies (median, 3.0; 1-10) resulting in 81 live births. Peripartum cardiac complications occurred in 28 (29.8%; 95% confidence interval, 20.4-39.2) of the pregnancies. A composite adverse long-term cardiac outcome occurred in 17 of 33 parous women, over 417 person-years (4 per 100 person-years) and 1 of 20 nulliparous women over 258 person-years (0.4 per 100 person-years); women with pregnancies were more likely at any point in time to have a composite long-term adverse cardiac outcome compared with nulliparous controls. Women with 2 or more pregnancies were more likely to have a composite adverse cardiac outcome than those with less than 2 pregnancies (hazard ratio, 8.8; 95% confidence interval, 1.5-50.3).

CONCLUSION

Peripartum cardiac complications are common in women with prior pulmonary valve repair or replacement. Pregnancy appears to increase the risk of long-term adverse cardiac outcomes in these patients when compared with nulliparous controls.

Incidental diagnosis of unilateral renal and adnexal agenesis in a 46-year-old multiparous woman

PATIENT

Female, 46 FINAL DIAGNOSIS: Unilateral adneksial and renal agenesis Symptoms: Menometrorrhagia Medication: - Clinical Procedure: Total abdominal hysterectomy and unilateral salphingoopherectomy Specialty: Obstetrics and gynecology.

OBJECTIVE

Rare disease.

BACKGROUND

Unilateral renal and adnexal agenesis is quite rare. Absence of any uterine abnormality accompanying current urogenital abnormalities is even rarer.

CASE REPORT

We report on the case of a 46-year-old multiparous woman, incidentally diagnosed to have unilateral renal, ovarian, and tubal agenesis just before hysterectomy due to menometrorrhagia and myoma uteri.

CONCLUSIONS

Any diagnosis of a urogenital abnormality necessitates investigation of comorbid renal or genital abnormalities.

Breastfeeding practices among first-time mothers and across multiple pregnancies

To investigate maternal characteristics associated with breastfeeding initiation and success. Women enrolled in the Mothers Outcomes After Delivery study reported breastfeeding practices 5-10 years after a first delivery. Women were classified as successful breastfeeding initiators, unsuccessful initiators, or non-initiators. For the first birth, demographic and obstetrical characteristics were compared across these three breastfeeding groups. For multiparous women, agreement in breastfeeding status between births was evaluated. Multivariate regression analysis was used to identify characteristics associated with non-initiation and unsuccessful breastfeeding across all births. Of 812 participants, 740 (91%) mothers tried to breastfeed their first child and 593 (73%) reported breastfeeding successfully. In a multivariate analysis, less educated women were less likely to initiate breastfeeding (odds ratio (OR) for non-initiation 1.97; 95% confidence interval (CI) 1.23, 3.14). There was a notable decrease in breastfeeding initiation with increasing birth order: compared to the first birth, the odds for non-initiation after a second delivery almost doubled (OR 1.83, 95% CI 1.42, 2.35) and the odds for non-initiation after a third delivery were further increased (OR 2.44, 95% CI 1.56, 3.82). Successful breastfeeding in a first pregnancy was a predictor of subsequent breastfeeding initiation and success. Specifically, women who did not attempt breastfeeding or who reported unsuccessful attempts to breastfeed at first birth were unlikely to initiate breastfeeding at later births. Cesarean delivery was not associated with breastfeeding initiation (OR 1.01; 95% CI 0.68, 1.48) or success (OR 1.33; 95% CI 0.92, 1.94). Breastfeeding practices after a first birth are a significant predictor of breastfeeding in subsequent births.

Evaluation of risk factors in cesarean delivery among multiparous women with a history of vaginal delivery

OBJECTIVE

To predict the risk of cesarean delivery (CS) for multiparous women who have undergone previous vaginal delivery.

MATERIAL AND METHODS

A prospective observational study was performed, among multiparous pregnancies that were between 38 and 41 gestational weeks and had a singleton, vertex presentation fetus. Women's physical activity score, obstetric history, intrapartum and postpartum events were assessed. Multivariable logistic regression was used to explore risk factors associated with CS.

RESULTS

Of the 245 total 83.7% had spontaneous labor and 16.3% were induced. Seventy-five percent of the induced women required CS, whereas only 19.5% of those with spontaneous labor required CS (p<0.001). The logistic regression analysis model included maternal weight gain, physical activity score, cervical dilatation, and fetal weight as the predictors of CS. We detected 7 (10%) maternal complications in women who underwent intrapartum CS.

CONCLUSION

Labor induction is significantly associated with increased risk of cesarean delivery among previously vaginally delivered women and maternal weight gain, physical activity score, cervical dilatation, and fetal weight are most accurate parameters in the prediction of the risk of CS delivery. Intrapartum CS has an increased risk of maternal morbidity.

Effects of multiparity on recognition memory, monoaminergic neurotransmitters, and brain-derived neurotrophic factor (BDNF)

Recognition memory and anxiety were examined in nulliparous (NP: 0 litters) and multiparous (MP: 5-6 litters) middle-aged female rats (12 months old) to assess possible enduring effects of multiparity at least 3 months after the last litter was weaned. MP females performed significantly better than NP females on the non-spatial memory task, object recognition, and the spatial memory task, object placement. Anxiety as measured on the elevated plus maze did not differ between groups. Monoaminergic activity and levels were measured in prefrontal cortex, CA1 hippocampus, CA3 hippocampus, and olfactory bulb (OB). NP and MP females differed in monoamine concentrations in the OB only, with MP females having significantly greater concentrations of dopamine and metabolite DOPAC, norepinephrine and metabolite MHPG, and the serotonin metabolite 5-HIAA, as compared to NP females. These results indicate a long-term change in OB neurochemistry as a result of multiparity. Brain-derived neurotrophic factor (BDNF) was also measured in hippocampus (CA1, CA3, dentate gyrus) and septum. MP females had higher BDNF levels in both CA1 and septum; as these regions are implicated in memory performance, elevated BDNF may underlie the observed memory task differences. Thus, MP females (experiencing multiple bouts of pregnancy, birth, and pup rearing during the first year of life) displayed enhanced memory task performance but equal anxiety responses, as compared to NP females. These results are consistent with previous studies showing long-term changes in behavioral function in MP, as compared to NP, rats and suggest that alterations in monoamines and a neurotrophin, BDNF, may contribute to the observed behavioral changes.

Absence of the common Insulin-like growth factor-1 19-repeat allele is associated with early age at breast cancer diagnosis in multiparous women

Multiparity decreases the risk of breast cancer in white women, whereas it is a risk factor in black women <50 years. Early-onset breast cancer (<50 years) has been associated with high insulin-like growth factor-1 (IGF-1) levels. Absence of the common IGF1 19 cytosine-adenine (CA)-repeat allele (IGF1-19/-19) inverts the effect of several non-genetic factors on breast cancer risk but the interaction between IGF1-19/-19 and multiparity on breast cancer risk is unknown. As IGF1-19/-19, multiparity and early-onset breast cancer are more common in black than in white women, we aimed to study whether multiparity combined with IGF1-19/-19 increases the risk of early-onset breast cancer. Four hundred and three breast cancer patients diagnosed in Lund, Sweden, at age 25-99 years were genotyped for the IGF1 CA-repeat length using fragment analysis. Overall, 12.9% carried the IGF1-19/-19 genotype. There was a highly significant interaction between multiparity and IGF1-19/-19 on age at breast cancer diagnosis (P=0.007). Among IGF1-19/-19 patients, multiparity was associated with a 9.2 year earlier age at diagnosis compared with uniparity or nulliparity (P=0.006). Multiparity combined with IGF1-19/-19 was associated with an early age at breast cancer diagnosis. If confirmed, IGF1-19/-19 may help identify a subgroup of women for earlier breast cancer screening.