Maternal Asian ethnicity and the risk of anal sphincter injury.

OBJECTIVE: To examine associations between maternal Asian ethnicity (South Asian and South East/East Asian) and anal sphincter injury. DESIGN: Retrospective cross-sectional study, comparing outcomes for Asian women with those of Australian and New Zealand women. SETTING: A large metropolitan maternity service in Victoria, Australia. POPULATION: Australian/New Zealand, South Asian and South East/East Asian women who had a singleton vaginal birth from 2006 to 2012. METHODS: The relation between maternal ethnicity and anal sphincter injury was assessed by logistic regression, adjusting for potential confounders. MAIN OUTCOME MEASURES: Anal sphincter injury was defined as a third or fourth degree tear (with or without episiotomy). RESULTS: Among 32,653 vaginal births there was a significant difference in the rate of anal sphincter injury by maternal region of birth (p < 0.001). After adjustment for confounders, nulliparous women born in South Asian and South East/East Asia were 2.6 (95% confidence interval 2.2-3.3; p < 0.001) and 2.1 (95% confidence interval 1.7-2.5; p < 0.001) times more likely to sustain an anal sphincter injury than Australian/New Zealand women, respectively. Parous women born in South Asian and South East/East Asia were 2.4 (95% confidence interval 1.8-3.2; p < 0.001) and 2.0 (95% confidence interval 1.5-2.7; p < 0.001) times more likely to sustain an anal sphincter injury than Australian/New Zealand women, respectively. CONCLUSION: There are ethnic differences in the rates of anal sphincter injury not fully explained by known risk factors for such trauma. This may have implications for care provision.

Very advanced maternal age and morbidity in Victoria, Australia: a population based study.

BACKGROUND: In Australia, approximately 0.1% of births occur to women 45 years or older and this rate has been increasing in recent years. There are however, few population based studies examining perinatal outcomes among this age group. The aim of this study was to determine the maternal and perinatal outcomes of pregnancies in women aged 45 years or older compared to women aged 30-34 years. METHODS: Data on births at 20 or more weeks' gestation were obtained from the Victorian Perinatal Data Collection for the years 2005 and 2006. We examined selected maternal and perinatal outcomes for women of very advanced maternal age (VAMA) aged 45 years or older (n = 217) and compared them to women aged 30-34 years (n = 48,909). Data were summarised using numbers and percentages. Categorical data were analysed by Chi-square tests and Fisher's exact test. Comparisons are presented using unadjusted odds ratios, 95 percent confidence intervals (CIs) and p-values. RESULTS: Women aged 45 years and older had higher odds of gestational diabetes (OR 2.05; 95% CI 1.3-3.3); antepartum haemorrhage (OR 1.89; 95% CI 1.01-3.5), and placenta praevia (OR 4.88; 95% CI 2.4-9.5). The older age-group also had higher odds of preterm birth between 32-36 weeks (OR 2.61; 95% CI 1.8-3.8); low birth-weight (<2,500 gr) (OR 2.22; 95% CI 1.5-3.3) and small for gestational age (OR 1.53; 95% CI 1.0-2.3). Stratified analysis revealed that VAMA was most strongly associated with caesarean section in primiparous women (OR 8.24; 95% CI 4.5, 15.4) and those using ART (OR 5.75; 95% CI 2.5, 13.3), but the relationship persisted regardless of parity, ART use and plurality. Low birthweight was associated with VAMA only in first births (OR 3.90; 95% CI 2.3, 6.6), while preterm birth was more common in older women for both first (OR 3.13; 95% CI 1.8, 5.3) and subsequent (OR 2.08; 95% CI 1.2, 3.5) births, and for those having singleton births (OR 2.11; 95% CI 1.3, 3.4), and those who did not use ART (OR 2.10; 95% CI 1.3, 3.4). Preterm birth was very common in multiple births and following ART use, regardless of maternal age. CONCLUSIONS: This study demonstrates that women aged 45 years and older, in Victoria, Australia, have higher rates of pregnancy and perinatal complications, compared to women aged 30-34 years.

Clinical decision-making: midwifery students' recognition of, and response to, post partum haemorrhage in the simulation environment.

BACKGROUND: This paper reports the findings of a study of how midwifery students responded to a simulated post partum haemorrhage (PPH). Internationally, 25% of maternal deaths are attributed to severe haemorrhage. Although this figure is far higher in developing countries, the risk to maternal wellbeing and child health problem means that all midwives need to remain vigilant and respond appropriately to early signs of maternal deterioration. METHODS: Simulation using a patient actress enabled the research team to investigate the way in which 35 midwifery students made decisions in a dynamic high fidelity PPH scenario. The actress wore a birthing suit that simulated blood loss and a flaccid uterus on palpation. The scenario provided low levels of uncertainty and high levels of relevant information. The student's response to the scenario was videoed. Immediately after, they were invited to review the video, reflect on their performance and give a commentary as to what affected their decisions. The data were analysed using Dimensional Analysis. RESULTS: The students' clinical management of the situation varied considerably. Students struggled to prioritize their actions where more than one response was required to a clinical cue and did not necessarily use mnemonics as heuristic devices to guide their actions. Driven by a response to single cues they also showed a reluctance to formulate a diagnosis based on inductive and deductive reasoning cycles. This meant they did not necessarily introduce new hypothetical ideas against which they might refute or confirm a diagnosis and thereby eliminate fixation error. CONCLUSIONS: The students response demonstrated that a number of clinical skills require updating on a regular basis including: fundal massage technique, the use of emergency standing order drugs, communication and delegation of tasks to others in an emergency and working independently until help arrives. Heuristic devices helped the students to evaluate their interventions to illuminate what else could be done whilst they awaited the emergency team. They did not necessarily serve to prompt the students' or help them plan care prospectively. The limitations of the study are critically explored along with the pedagogic implications for initial training and continuing professional development.