RESUMEN
OBJECTIVES: To explore how childbirth-related blood loss is evaluated and excessive bleeding recognised; and to develop and test a theory of postpartum haemorrhage (PPH) diagnosis. DESIGN: Two-phase, exploratory, sequential mixed methods design using focus groups, interviews and a pilot, randomised crossover study. SETTING: Two hospitals in North West England. SAMPLE: Women (following vaginal birth with and without PPH), birth partners, midwives and obstetricians. METHODS: Phase 1 (qualitative): 8 focus groups and 20 one-to-one, semi-structured interviews were conducted with 15 women, 5 birth partners, 11 obstetricians, 1 obstetric anaesthetist and 19 midwives (n = 51). Phase 2 (quantitative): 11 obstetricians and ten midwives (n = 21) completed two simulations of fast and slow blood loss using a high-fidelity childbirth simulator. RESULTS: Responses to blood loss were described as automatic, intuitive reactions to the speed, nature and visibility of blood flow. Health professionals reported that quantifying volume was most useful after a PPH diagnosis, to validate intuitive decisions and guide ongoing management. During simulations, PPH treatment was initiated at volumes at or below 200 ml (fast mean blood loss 79.6 ml, SD 41.1; slow mean blood loss 62.6 ml, SD 27.7). All participants treated fast, visible blood loss, but only half treated slow blood loss, despite there being no difference in volumes (difference 18.2 ml, 95% CI -5.6 to 42.2 ml, P = 0.124). CONCLUSIONS: Experience and intuition, rather than blood loss volume, inform recognition of excessive blood loss after birth. Women and birth partners want more information and open communication about blood loss. Further research exploring clinical decision-making and how to support it is required. TWEETABLE ABSTRACT: During a PPH, clinical decision-making is intuitive with clinicians treating as soon as excessive loss is recognised.
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Toma de Decisiones Clínicas , Parto Obstétrico/psicología , Personal de Salud/psicología , Parto/psicología , Hemorragia Posparto/diagnóstico , Adulto , Simulación por Computador , Estudios Cruzados , Parto Obstétrico/efectos adversos , Inglaterra , Femenino , Grupos Focales , Humanos , Partería , Obstetricia , Proyectos Piloto , Embarazo , Mujeres Embarazadas/psicología , Investigación Cualitativa , Proyectos de InvestigaciónRESUMEN
OBJECTIVE: To compare the effectiveness and safety of Foley catheter and oral misoprostol for induction of labor (IOL). METHODS: The Cochrane Review on Mechanical Methods for Induction of Labour and Ovid MEDLINE, EMBASE via Ovid, Ovid Emcare, CINAHL Plus, ClinicalTrials.gov and Scopus, from inception to April 2019, were searched for randomized controlled trials (RCTs) comparing Foley catheter to oral misoprostol for IOL in viable singleton gestations. Eligible trials for which raw data were obtained were included and individual participant data meta-analysis was performed. Primary outcomes were vaginal birth, a composite of adverse perinatal outcome (including stillbirth, neonatal death, neonatal seizures, admission to the neonatal intensive care unit, severe respiratory compromise or meconium aspiration syndrome) and a composite of adverse maternal outcome (including admission to the intensive care unit, maternal infection, severe postpartum hemorrhage, maternal death or uterine rupture). The quality of the included RCTs was assessed using the Cochrane Risk of Bias 2 tool and the certainty of evidence was evaluated using the GRADE approach. A two-stage random-effects model was used for meta-analysis according to the intention-to-treat principle and interactions between treatment and baseline characteristics were assessed. RESULTS: Of seven eligible trials, four provided individual participant data for a total of 2815 participants undergoing IOL, of whom 1399 were assigned to Foley catheter and 1416 to oral misoprostol. All four trials provided data for each of the primary outcomes in all 2815 women. Compared with those receiving oral misoprostol, Foley catheter recipients had a slightly decreased chance of vaginal birth (risk ratio (RR), 0.95 (95% CI, 0.91-0.99); I2 , 2.0%; moderate-certainty evidence). A trend towards a lower rate of composite adverse perinatal outcome was found in women undergoing IOL using a Foley catheter compared with oral misoprostol (RR, 0.71 (95% CI, 0.48-1.05); I2 , 14.9%; low-certainty evidence). Composite adverse maternal outcome did not differ between the groups (RR, 1.00 (95% CI, 0.97-1.03); I2 , 0%; moderate-certainty evidence). Meta-analyses of effect modifications did not show significant interactions between intervention and parity or gestational age for any of the primary outcomes. CONCLUSIONS: For women undergoing IOL, Foley catheter is less effective than oral misoprostol, as it was associated with fewer vaginal births. However, while we found no significant difference in maternal safety, Foley catheter induction may reduce adverse perinatal outcomes. Copyright © 2020 ISUOG. Published by John Wiley & Sons Ltd.
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Catéteres , Trabajo de Parto Inducido , Misoprostol , Oxitócicos , Administración Oral , Femenino , Humanos , Embarazo , Ensayos Clínicos Controlados Aleatorios como Asunto , Cateterismo UrinarioRESUMEN
OBJECTIVES: To explore obstetricians' and gynaecologists' experiences of work-related traumatic events, to measure the prevalence and predictors of post-traumatic stress disorder (PTSD), any impacts on personal and professional lives, and any support needs. DESIGN: Mixed methods: cross-sectional survey and in-depth interviews. SAMPLE AND SETTING: Fellows, members and trainees of the Royal College of Obstetricians and Gynaecologists (RCOG). METHODS: A survey was sent to 6300 fellows, members and trainees of RCOG. 1095 people responded. Then 43 in-depth interviews with trauma-exposed participants were completed and analysed by template analysis. MAIN OUTCOME MEASURES: Exposure to traumatic work-related events and PTSD, personal and professional impacts, and whether there was any need for support. Interviews explored the impact of trauma, what helped or hindered psychological recovery, and any assistance wanted. RESULTS: Two-thirds reported exposure to traumatic work-related events. Of these, 18% of both consultants and trainees reported clinically significant PTSD symptoms. Staff of black or minority ethnicity were at increased risk of PTSD. Clinically significant PTSD symptoms were associated with lower job satisfaction, emotional exhaustion and depersonalisation. Organisational impacts included sick leave, and 'seriously considering leaving the profession'. 91% wanted a system of care. The culture in obstetrics and gynaecology was identified as a barrier to trauma support. A strategy to manage the impact of work-place trauma is proposed. CONCLUSIONS: Exposure to work-related trauma is a feature of the experience of obstetricians and gynaecologists. Some will suffer PTSD with high personal, professional and organisational impacts. A system of care is needed. TWEETABLE ABSTRACT: 18% of obstetrics and gynaecology doctors experience post-traumatic stress disorder after traumatic events at work.
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Ginecología , Obstetricia , Estrés Laboral/epidemiología , Médicos/psicología , Trastornos por Estrés Postraumático/epidemiología , Adulto , Agotamiento Profesional/epidemiología , Desgaste por Empatía/epidemiología , Estudios Transversales , Despersonalización , Femenino , Humanos , Entrevistas como Asunto , Masculino , Persona de Mediana Edad , Grupos Minoritarios/psicología , Ausencia por Enfermedad , Encuestas y Cuestionarios , Reino Unido/epidemiologíaRESUMEN
OBJECTIVES: To test whether providing psychological self-help materials would significantly lower the incidence of post-traumatic stress disorder (PTSD) at 6-12 weeks postnatally. DESIGN: Open-label randomised controlled trial, with blinded outcome assessment. SETTING: Community midwifery services in two National Health Service (NHS) trusts in the North West. SAMPLE: A cohort of 2419 women receiving normal NHS postnatal care. METHODS: Midwives screened women for traumatic birth experience; 678 women who screened positively (28.1%) were randomly allocated to self-help with usual care (n = 336) or to usual care alone (n = 342). The self-help materials were a leaflet and online film designed to prevent the development of PTSD after trauma exposure through explaining how to manage early psychological responses. MAIN OUTCOME MEASURE: The primary outcome was a composite of diagnostic and subdiagnostic PTSD at 6-12 weeks postnatally using the gold-standard Clinician-Administered PTSD Scale (CAPS-5) interview. RESULTS: Of the 678 women correctly randomised plus the nine women randomised in error, 478 (70.5%) were followed up. Diagnostic or subdiagnostic PTSD rates at follow-up did not differ between groups who received self-help (26.7%, 65/243) or usual care alone (26.2%, 64/244) (intention-to-treat analysis: RR 1.02, 95% CI 0.68-1.53). Findings remained consistent in the per-protocol analysis (RR 1.04, 95% CI 0.85-1.27). Women viewed the materials very positively. There were no adverse effects. Health economic micro-costing indicated implementation would be very low cost. CONCLUSIONS: Many women experience a traumatic birth and risk developing PTSD, but self-help strategies without professional support are insufficient and should not be routinely introduced. TWEETABLE ABSTRACT: Self-help information alone does not reduce the number of women developing PTSD after a traumatic childbirth.
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Intervención basada en la Internet , Complicaciones del Trabajo de Parto , Folletos , Parto/psicología , Calidad de Vida , Trastornos por Estrés Postraumático , Adulto , Errores Diagnósticos/prevención & control , Femenino , Humanos , Partería/métodos , Complicaciones del Trabajo de Parto/diagnóstico , Complicaciones del Trabajo de Parto/prevención & control , Complicaciones del Trabajo de Parto/psicología , Embarazo , Técnicas Psicológicas , Automanejo/métodos , Trastornos por Estrés Postraumático/diagnóstico , Trastornos por Estrés Postraumático/etiología , Trastornos por Estrés Postraumático/prevención & control , Trastornos por Estrés Postraumático/psicología , Resultado del TratamientoRESUMEN
OBJECTIVE: To develop core outcome sets (COS) for studies evaluating interventions for (1) prevention and (2) treatment of postpartum haemorrhage (PPH), and recommendations on how to report the COS. DESIGN: A two-round Delphi survey and face-to-face meeting. POPULATION: Healthcare professionals and women's representatives. METHODS: Outcomes were identified from systematic reviews of PPH studies and stakeholder consultation. Participants scored each outcome in the Delphi on a Likert scale between 1 (not important) and 9 (critically important). Results were discussed at the face-to-face meeting to agree the final COS. Consensus at the meeting was defined as ≥ 70% of participants scoring the outcome as critically important (7-9). Lectures, discussion and voting were used to agree how to report COS outcomes. MAIN OUTCOME MEASURES: Outcomes from systematic reviews and consultations. RESULTS: Both Delphi rounds were completed by 152/205 (74%) participants for prevention and 143/197 (73%) for treatment. For prevention of PPH, nine core outcomes were selected: blood loss, shock, maternal death, use of additional uterotonics, blood transfusion, transfer for higher level of care, women's sense of wellbeing, acceptability and satisfaction with the intervention, breastfeeding, and adverse effects. For treatment of PPH, 12 core outcomes were selected: blood loss, shock, coagulopathy, hysterectomy, organ dysfunction, maternal death, blood transfusion, use of additional haemostatic intervention, transfer for higher level of care, women's sense of wellbeing, acceptability and satisfaction with the intervention, breastfeeding, and adverse effects. Recommendations were developed on how to report these outcomes where possible. CONCLUSIONS: These COS will help standardise outcome reporting in PPH trials. TWEETABLE ABSTRACT: Core outcome sets for PPH: nine core outcomes for PPH prevention and 12 core outcomes for PPH treatment.
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Evaluación de Resultado en la Atención de Salud , Hemorragia Posparto/terapia , Consenso , Técnica Delphi , Femenino , Humanos , Cooperación Internacional , Satisfacción del Paciente , Hemorragia Posparto/prevención & control , EmbarazoRESUMEN
BACKGROUND: Neonatal sepsis is a major cause of mortality worldwide, with most deaths occurring in low-income countries. The World Health Organisation (WHO) '5 Moments for Hand Hygiene' poster has been used to reduce hospital-acquired infections, but there is no similar tool to prevent community-acquired newborn infections in low-resource settings. This assessment, part of the BabyGel Pilot study, evaluated the acceptability of the 'Newborn Moments for Hand Hygiene in the Home' poster. This was an educational tool which aimed to remind mothers in rural Uganda to clean their hands to prevent neonatal infection. METHODS: The BabyGel pilot was a cluster randomised trial that assessed the post-partum use of alcohol-based hand rub (ABHR) to prevent neonatal infections in Mbale, Uganda. Fifty-five women in 5 village clusters received the ABHR and used it from birth to 3 months postnatally, with use guided by the new poster. Following the study, 5 focus group discussions (FGDs) were conducted consisting of 6-8 purposively sampled participants from intervention villages. FGDs were audio-recorded, transcribed then translated into English. Transcripts were inductively coded using ATLAS.ti® and qualitatively analysed using thematic content analysis. RESULTS: Most mothers reported that they understood the message in the poster ("The picture shows me you must use these drugs to keep your baby healthy") and that they could adhere to the moments from the poster. Some participants used the information from the poster to encourage other caregivers to use the ABHR ("after explaining to them, they liked it"). Other potential moments for hand hygiene were introduced by participants, such as after tending to domestic animals and gardening. CONCLUSION: The poster was well-received, and participants reported compliance with the moments for hand hygiene (although the full body wipe of the baby has since been removed). The poster will be adapted into a sticker format on the ABHR bottle. More focus could be put into an education tool for other caregivers who wish to hold the baby. Overall, the study demonstrated the acceptability of an adapted version of the WHO Moments for Hand Hygiene poster in the introduction of an intervention in the community. TRIAL REGISTRATION: ISRCTN67852437 , registered 02/03/2015. TRIAL FUNDING: Medical Research Council/ Wellcome Trust/ DfID (Global Health Trials Scheme).
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Higiene de las Manos , Educación en Salud/métodos , Madres/psicología , Sepsis Neonatal/prevención & control , Carteles como Asunto , Población Rural , Adolescente , Adulto , Femenino , Grupos Focales , Conocimientos, Actitudes y Práctica en Salud , Humanos , Recién Nacido , Madres/estadística & datos numéricos , Proyectos Piloto , Investigación Cualitativa , Población Rural/estadística & datos numéricos , Uganda , Organización Mundial de la Salud , Adulto JovenRESUMEN
OBJECTIVE: To determine the effectiveness and economic impact of two methods for induction of labour in hypertensive women, in low-resource settings. DESIGN: Cost-consequence analysis of a previously reported multicentre, parallel, open-label randomised trial. SETTING & POPULATION: A total of 602 women with a live fetus, aged ≥18 years requiring delivery for pre-eclampsia or hypertension, in two public hospitals in Nagpur, India. METHODS: We performed a formal economic evaluation alongside the INFORM clinical trial. Women were randomised to receive transcervical Foley catheterisation or oral misoprostol 25 mcg. Healthcare expenditure was calculated using a provider-side microcosting approach. MAIN OUTCOME MEASURES: Rates of vaginal this delivery within 24 hours of induction, healthcare expenditure per completed treatment episode. RESULTS: Induction with oral misoprostol resulted in a (mean difference) $20.6USD reduction in healthcare expenditure [95% CI (-) $123.59 (-) $72.49], and improved achievement of vaginal delivery within 24 hours of induction, mean difference 10% [95% CI (-2 to 17.9%), P = 0.016]. Oxytocin administration time was reduced by 135.3 minutes [95% CI (84.4-186.2 minutes), P < 0.01] and caesarean sections by 9.1% [95% CI (1.1-17%), P = 0.025] for those receiving oral misoprostol. Following probabilistic sensitivity analysis, oral misoprostol was cost-saving in 63% of 5,000 bootstrap replications and achieved superior rates of vaginal delivery, delivery within 24 hours of induction and vaginal delivery within 24 hours of induction in 98.7%, 90.7%, and 99.4% of bootstrap simulations. Based on univariate threshold analysis, the unit price of oral misoprostol 25 mcg could feasibly increase 31-fold from $0.24 to $7.50 per 25 mcg tablet and remain cost-saving. CONCLUSION: Compared to Foley catheterisation for the induction of high-risk hypertensive women, oral misoprostol improves rates of vaginal delivery within 24 hours of induction and may also reduce costs. Additional research performed in other low-resource settings is required to determine their relative cost-effectiveness. TWEETABLE ABSTRACT: Oral misoprostol less costly and more effective than Foley catheter for labour induction in hypertension.
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Ahorro de Costo/estadística & datos numéricos , Trabajo de Parto Inducido/métodos , Misoprostol/administración & dosificación , Oxitócicos/administración & dosificación , Parto , Cateterismo Urinario , Administración Oral , Adolescente , Adulto , Análisis Costo-Beneficio , Femenino , Gastos en Salud/estadística & datos numéricos , Humanos , India , Trabajo de Parto Inducido/economía , Misoprostol/efectos adversos , Misoprostol/economía , Oxitócicos/efectos adversos , Oxitócicos/economía , Preeclampsia/terapia , Embarazo , Resultado del Tratamiento , Cateterismo Urinario/efectos adversos , Cateterismo Urinario/economía , Adulto JovenRESUMEN
BACKGROUND: Neonatal sepsis causes 0.5 million deaths annually, mostly in low resource settings. Babies born in African rural homes without running water or toilet facilities are especially vulnerable. Alcohol-based hand rub (ABHR) may be used by mothers and carers as an alternative to hand washing with soap to prevent neonatal infection. However, no definite study has established the preferred formulation of hand rub for the mothers. This study aimed to assess the effects of addition of bitterants and perfume towards the acceptability of the alcohol-based hand rubs by the mothers in their homes after childbirth. METHODS: This was a 3-way blinded cross-over study design. Mothers with children aged ≤3 months were recruited from immunisation clinics at 3 local health facilities in rural eastern Uganda and received 3-different ABHR formulations (in the order plain, bitterant and perfumed) packed in 100 ml bottles. Each ABHR was used for 5 consecutive days followed by a 2-day 'washout' period (evaluation period). Overall satisfaction with each hand rub was evaluated at the end of each week using a 7-point Likert scale. RESULTS: A total of 43 women were recruited, whose ages ranged from 16 to 45 years (mean 26.2 years old). None of the participants normally used a hand protective lotion/cream. The three formulations were used for a mean of 5 (range 3-7) days. A significantly greater volume of the "bitterant" and "perfumed" formulations (mean 91 and 83 ml respectively) were used in comparison to the "plain" formulation (mean 64 ml). Overall satisfaction was high with all the hand rubs, but the perfumed formulation had a significantly higher overall satisfaction score [mean 6.7, range 4-7] compared with the plain [6.4, 3-7] and bitterant [6.2, 2-7] formulations. CONCLUSIONS: All the 3 ABHR formulations were well accepted with little to choose between them. The ABHR with added perfume scored highest on overall satisfaction and was used significantly more often than plain ABHR. ABHR with bitterant additive did, however, score highly and may be a preferable choice to those with concern over alcohol misuse. TRIAL REGISTRATION: ISRCTN67852437 , prospectively registered on 18/03/2018.
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Antiinfecciosos Locales/química , Etanol/química , Desinfección de las Manos/métodos , Sepsis Neonatal/prevención & control , Población Rural , Adolescente , Adulto , Antiinfecciosos Locales/uso terapéutico , Química Farmacéutica , Estudios Cruzados , Etanol/uso terapéutico , Femenino , Humanos , Lactante , Recién Nacido , Persona de Mediana Edad , Madres/psicología , Madres/estadística & datos numéricos , Satisfacción Personal , Población Rural/estadística & datos numéricos , Uganda , Adulto JovenRESUMEN
BACKGROUND: Postpartum haemorrhage (PPH) can be exacerbated by haemostatic failure. We hypothesized that early fibrinogen replacement, guided by viscoelastometric testing, reduces blood product usage and bleed size. METHODS: Women with PPH 1000-1500 ml were enrolled. If Fibtem A5 was ≤15 mm and bleeding continued, subjects were randomized to fibrinogen concentrate or placebo. The primary outcome compared the number of units of red blood cells, plasma, cryoprecipitate and platelets transfused. RESULTS: Of 663 women enrolled 55 were randomized. The adjusted incidence rate ratio (IRR) (95% CI) for the number of allogeneic units transfused in the fibrinogen group compared with placebo was 0.72 (0.3-1.7), P =0.45. In pre-specified subgroup analyses, subjects who had a Fibtem A5 ≤12 mm at the time of randomization and who received fibrinogen concentrate received a median (25th-75th centile) of 1 (0-4.5) unit of allogeneic blood products and had an additional 300 (100-350) ml blood loss whereas those who received placebo also received 3 (0-6) units of allogeneic blood products and had 700 (200-1550) ml additional blood loss; these differences were not statistically significantly different. There was one thrombotic event in each group. CONCLUSIONS: Infusion of fibrinogen concentrate triggered by Fibtem A5 ≤15 mm did not improve outcomes in PPH. Pre-specified subgroup analyses suggest that fibrinogen replacement is not required if the Fibtem A5 is > 12 mm or Clauss fibrinogen >2 g litre -1 , but an effect below these levels cannot be excluded. The raised fibrinogen at term appears to be a physiological buffer rather than required for haemostasis. TRIAL REGISTRATION: ISRCTN46295339 ( http://www.isrctn.com/ISRCTN46295339 , last accessed 5 July 2017), EudraCT 2012-005511-11 ( https://www.clinicaltrialsregister.eu/ctr-search/search?query=2012-005511-11 , last accessed 5 July 2017).
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Fibrinógeno/uso terapéutico , Hemorragia Posparto/tratamiento farmacológico , Tromboelastografía/métodos , Adulto , Método Doble Ciego , Femenino , Humanos , Persona de Mediana Edad , Resultado del Tratamiento , Adulto JovenRESUMEN
BACKGROUND: Postpartum haemorrhage (PPH) can be exacerbated by haemostatic failure. Based on data from trauma studies, empirical infusions of fresh frozen plasma (FFP) are often given during severe PPH if coagulation tests are unavailable. This study observed a cohort of women with moderate/severe PPH in whom FFP infusion was guided by the use of viscoelastometric point-of-care testing (VE-POCT) and clinical assessment. METHODS: Women were enrolled into this observational study when blood loss was measured or suspected to be about 1000 mL. If Fibtem A5 determined by Rotem ® thromboelastometry remained >15 mm, or bleeding stopped, FFP was withheld. If Fibtem A5 was ≤15 mm and bleeding ongoing, women were randomized into an interventional study as previously reported. Clinical and laboratory outcomes were recorded. RESULTS: The study recruited 605 women and 98% had FFP withheld. The median (25 th -75 th centile) total blood loss was 1500 (1300-2000) mL with 300 (50-545) mL occurring after enrolment. Total blood loss was >2500 mL in 40/605 (6.6%) women. RBCs were transfused in 141/605 (23.3%) patients and 11 (1.8%) received ≥4 units. At least one invasive procedure was performed in 283/605 (46.8%) women. Level 3 care was required for 10/605 (1.7%) women. No women developed clinically significant haemostatic impairment. CONCLUSIONS: Restrictive use of FFP guided by clinical assessment of bleeding and VE-POCT is feasible and did not result in clinically significant haemostatic impairment. Studies should compare the clinical and cost effectiveness of empirical FFP infusions, according to current guidelines, with targeted use of FFP based on VE-POCT. CLINICAL TRIAL REGISTRATION: ISRCTN46295339 ( http://www.isrctn.com/ISRCTN46295339 ) (accessed July 24, 2017), EudraCT 2012-005511-11 ( https://www.clinicaltrialsregister.eu/ctr-search?query=2011-005511-11 ) (accessed July 24, 2017).
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Transfusión Sanguínea/métodos , Plasma , Hemorragia Posparto/terapia , Tromboelastografía/métodos , Adolescente , Adulto , Estudios de Cohortes , Método Doble Ciego , Femenino , Humanos , Persona de Mediana Edad , Resultado del Tratamiento , Adulto JovenRESUMEN
Estimating contemporary genetic structure and population connectivity in marine species is challenging, often compromised by genetic markers that lack adequate sensitivity, and unstructured sampling regimes. We show how these limitations can be overcome via the integration of modern genotyping methods and sampling designs guided by LiDAR and SONAR data sets. Here we explore patterns of gene flow and local genetic structure in a commercially harvested abalone species (Haliotis rubra) from southeastern Australia, where the viability of fishing stocks is believed to be dictated by recruitment from local sources. Using a panel of microsatellite and genomewide SNP markers, we compare allele frequencies across a replicated hierarchical sampling area guided by bathymetric LiDAR imagery. Results indicate high levels of gene flow and no significant genetic structure within or between benthic reef habitats across 1400 km of coastline. These findings differ to those reported for other regions of the fishery indicating that larval supply is likely to be spatially variable, with implications for management and long-term recovery from stock depletion. The study highlights the utility of suitably designed genetic markers and spatially informed sampling strategies for gaining insights into recruitment patterns in benthic marine species, assisting in conservation planning and sustainable management of fisheries.
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Genética de Población , Moluscos/genética , Animales , Australia , Explotaciones Pesqueras , Flujo Génico , Frecuencia de los Genes , Genómica , Genotipo , Polimorfismo de Nucleótido SimpleRESUMEN
OBJECTIVE: To ascertain the incidence of massive transfusion (MT) in obstetrics in the UK, and describe its management and clinical outcomes. DESIGN: A population-based cross-sectional study conducted through the UK Obstetric Surveillance System (UKOSS). SETTINGS: All UK hospitals with consultant-led maternity units. POPULATION: Any pregnant woman at ≥20 weeks of gestation receiving ≥8 units of red blood cells within 24 hours of giving birth, from July 2012 to June 2013. METHODS: Prospective case identification through the monthly mailing of UKOSS. RESULTS: We identified 181 women who had undergone MT, making the estimated incidence of MT associated with postpartum haemorrhage (PPH) 23 per 100 000 maternities (95% confidence interval 19-26) per year. The median estimated blood loss was 6 l (interquartile range 4.5-8.0 l). The majority of women presented outside working hours (63%), 40% had had previous caesarean sections and 3% had normal vaginal births without risk factors. The main cause for MT was uterine atony (40%) and the main mode of birth was caesarean section (69%). Of the 181 women, 15 received >20 units of red blood cells. In total, 45% of women underwent hysterectomy, and among all causes of PPH, placenta accreta had the highest hysterectomy rate. Two women died, 82% were admitted to intensive care/high-dependency units, and 28% developed major morbidities. CONCLUSION: Massive transfusion due to PPH is associated with high rates of morbidity and hysterectomy. Clinical and research efforts should focus on approaches to recognise and optimise timely resuscitation and management of these severe cases. TWEETABLE ABSTRACT: Massive transfusion due to postpartum haemorrhage is associated with high rates of morbidity and hysterectomy.
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Transfusión Sanguínea , Cesárea , Histerectomía/estadística & datos numéricos , Placenta Accreta , Hemorragia Posparto , Inercia Uterina , Adulto , Transfusión Sanguínea/métodos , Transfusión Sanguínea/estadística & datos numéricos , Cesárea/efectos adversos , Cesárea/estadística & datos numéricos , Estudios Transversales , Femenino , Humanos , Histerectomía/métodos , Incidencia , Placenta Accreta/epidemiología , Placenta Accreta/cirugía , Hemorragia Posparto/epidemiología , Hemorragia Posparto/etiología , Hemorragia Posparto/terapia , Embarazo , Resultado del Embarazo/epidemiología , Estudios Prospectivos , Factores de Riesgo , Reino Unido/epidemiología , Inercia Uterina/epidemiología , Inercia Uterina/terapiaRESUMEN
Postpartum haemorrhage (PPH) remains a major cause of maternal deaths worldwide, and is estimated to cause the death of a woman every 10 minutes. This review presents the latest clinical advice, including new evidence on controlled cord traction, misoprostol, and oxytocin. The controversy around the diagnosis of PPH, the limitations of universal prophylaxis, and novel ways to provide obstetric first aid are also presented. It ends with a call to develop high-quality front-line obstetric services that can deal rapidly with unexpected haemorrhages as well as minimising blood loss at critical times: major abruption, placenta praevia, and caesarean for prolonged labour.
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Atención a la Salud , Oxitócicos/uso terapéutico , Hemorragia Posparto/terapia , Transfusión Sanguínea , Vendajes de Compresión , Femenino , Parto Domiciliario , Humanos , Tercer Periodo del Trabajo de Parto , Hemorragia Posparto/prevención & control , EmbarazoRESUMEN
OBJECTIVE: (Primary) To establish the effect of antenatal group self-hypnosis for nulliparous women on intra-partum epidural use. DESIGN: Multi-method randomised control trial (RCT). SETTING: Three NHS Trusts. POPULATION: Nulliparous women not planning elective caesarean, without medication for hypertension and without psychological illness. METHODS: Randomisation at 28-32 weeks' gestation to usual care, or to usual care plus brief self-hypnosis training (two × 90-minute groups at around 32 and 35 weeks' gestation; daily audio self-hypnosis CD). Follow up at 2 and 6 weeks postnatal. MAIN OUTCOME MEASURES: Primary: epidural analgesia. Secondary: associated clinical and psychological outcomes; cost analysis. RESULTS: Six hundred and eighty women were randomised. There was no statistically significant difference in epidural use: 27.9% (intervention), 30.3% (control), odds ratio (OR) 0.89 [95% confidence interval (CI): 0.64-1.24], or in 27 of 29 pre-specified secondary clinical and psychological outcomes. Women in the intervention group had lower actual than anticipated levels of fear and anxiety between baseline and 2 weeks post natal (anxiety: mean difference -0.72, 95% CI -1.16 to -0.28, P = 0.001); fear (mean difference -0.62, 95% CI -1.08 to -0.16, P = 0.009) [Correction added on 7 July 2015, after first online publication: 'Mean difference' replaced 'Odds ratio (OR)' in the preceding sentence.]. Postnatal response rates were 67% overall at 2 weeks. The additional cost in the intervention arm per woman was £4.83 (CI -£257.93 to £267.59). CONCLUSIONS: Allocation to two-third-trimester group self-hypnosis training sessions did not significantly reduce intra-partum epidural analgesia use or a range of other clinical and psychological variables. The impact of women's anxiety and fear about childbirth needs further investigation.
Asunto(s)
Analgesia Epidural/estadística & datos numéricos , Analgesia Obstétrica/estadística & datos numéricos , Hipnosis , Dolor de Parto/terapia , Manejo del Dolor , Cooperación del Paciente/estadística & datos numéricos , Autocuidado/métodos , Adulto , Femenino , Humanos , Dolor de Parto/epidemiología , Manejo del Dolor/métodos , Educación del Paciente como Asunto , Satisfacción del Paciente , Embarazo , Sistemas Recordatorios , Encuestas y Cuestionarios , Resultado del TratamientoRESUMEN
Ongoing research on malignant and normal cell biology has substantially enhanced the understanding of the biology of cancer and carcinogenesis. This has led to the development of methods to image the evolution of cancer, target specific biological molecules, and study the anti-tumour effects of novel therapeutic agents. At the same time, there has been a paradigm shift in the field of oncological imaging from purely structural or functional imaging to combined multimodal structure-function approaches that enable the assessment of malignancy from all aspects (including molecular and functional level) in a single examination. The evolving molecular functional imaging using specific molecular targets (especially with combined positron-emission tomography [PET] computed tomography [CT] using 2- [(18)F]-fluoro-2-deoxy-D-glucose [FDG] and other novel PET tracers) has great potential in translational research, giving specific quantitative information with regard to tumour activity, and has been of pivotal importance in diagnoses and therapy tailoring. Furthermore, molecular functional imaging has taken a key place in the present era of translational cancer research, producing an important tool to study and evolve newer receptor-targeted therapies, gene therapies, and in cancer stem cell research, which could form the basis to translate these agents into clinical practice, popularly termed "theranostics". Targeted molecular imaging needs to be developed in close association with biotechnology, information technology, and basic translational scientists for its best utility. This article reviews the current role of molecular functional imaging as one of the main pillars of translational research.
Asunto(s)
Imagen Molecular/métodos , Neoplasias/diagnóstico , Investigación Biomédica Traslacional/métodos , Humanos , Imagen por Resonancia Magnética , Imagen Multimodal , Tomografía de Emisión de Positrones , Tomografía Computarizada de Emisión de Fotón Único , Tomografía Computarizada por Rayos XAsunto(s)
Oclusión con Balón , Hemorragia Posparto , Taponamiento Uterino con Balón , Condones , Egipto , Femenino , Humanos , Embarazo , Senegal , UgandaRESUMEN
Genetic markers are widely used to define and manage populations of threatened species based on the notion that populations with unique lineages of mtDNA and well-differentiated nuclear marker frequencies should be treated separately. However, a danger of this approach is that genetic uniqueness might be emphasized at the cost of genetic diversity, which is essential for adaptation and is potentially boosted by mixing geographically separate populations. Here, we re-explore the issue of defining management units, focussing on a detailed study of Galaxiella pusilla, a small freshwater fish of national conservation significance in Australia. Using a combination of microsatellite and mitochondrial markers, 51 populations across the species range were surveyed for genetic structure and diversity. We found an inverse relationship between genetic differentiation and genetic diversity, highlighting a long-term risk of deliberate isolation of G. pusilla populations based on protection of unique lineages. Instead, we adopt a method for identifying genetic management units that takes into consideration both uniqueness and genetic variation. This produced a management framework to guide future translocation and re-introduction efforts for G. pusilla, which contrasted to the framework based on a more traditional approach that may overlook important genetic variation in populations.