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1.
Am J Obstet Gynecol ; 2024 May 07.
Artigo em Inglês | MEDLINE | ID: mdl-38723984

RESUMO

BACKGROUND: Pregnancies with large-for-gestational-age fetuses are at increased risk of adverse maternal and neonatal outcomes. There is uncertainty about how to manage birth in such pregnancies. Current guidelines recommend a discussion with women of the pros and cons of options, including expectant management, induction of labor, and cesarean delivery. For women to make an informed decision about birth, antenatal detection of large for gestational age is essential. OBJECTIVE: To investigate the ability of antenatal ultrasound scans to predict large for gestational age at birth. STUDY DESIGN: In this retrospective cohort study, we analyzed data from a routinely collected database from the West Midlands, United Kingdom. We included pregnancies that had an antenatal ultrasound-estimated fetal weight between 35+0 and 38+0 weeks gestation for any indication and a subgroup where the reason for the scan was that the fetus was suspected to be big. Large for gestational age was defined as >90th customized GROW percentile for estimated fetal weight as well as neonatal weight. In addition, we tested the performance of an uncustomized standard, with Hadlock fetal weight >90th percentile and neonatal weight >4 kg. We calculated diagnostic characteristics for the whole population and groups with different maternal body mass indexes. RESULTS: The study cohort consisted of 26,527 pregnancies, which, on average, had a scan at 36+4 weeks gestation and delivered 20 days later at a median of 39+3 weeks (interquartile range 15). In total, 2241 (8.4%) of neonates were large for gestational age by customized percentiles, of which 1459 (65.1%) had a scan estimated fetal weight >90th percentile, with a false positive rate of 8.6% and a positive predictive value of 41.0%. In the subgroup of 912 (3.4%) pregnancies scanned for a suspected large fetus, 293 (32.1%) babies were large for gestational age at birth, giving a positive predictive value of 50.3%, with a sensitivity of 77.1% and false positive rate of 36.0%. When comparing subgroups from low (<18.5 kg/m2) to high body mass index (>30 kg/m2), sensitivity increased from 55.6% to 67.8%, false positive rate from 5.2% to 11.5%, and positive predictive value from 32.1% to 42.3%. A total of 2585 (9.7%) babies were macrosomic (birthweight >4 kg), and of these, 1058 (40.9%) were large for gestational age (>90th percentile) antenatally by Hadlock's growth standard, with a false positive rate of 4.9% and a positive predictive value 41.0%. Analysis within subgroups showed better performance by customized than uncustomized standards for low body mass index (<18.5; diagnostic odds ratio, 23.0 vs 6.4) and high body mass index (>30; diagnostic odds ratio, 16.2 vs 8.8). CONCLUSION: Late third-trimester ultrasound estimation of fetal weight for any indication has a good ability to identify and predict large for gestational age at birth and improves with the use of a customized standard. The detection rate is better when an ultrasound is performed for a suspected large fetus but at the risk of a higher false positive diagnosis. Our results provide information for women and clinicians to aid antenatal decision-making about the birth of a fetus suspected of being large for gestational age.

2.
Am J Obstet Gynecol ; 229(5): 547.e1-547.e13, 2023 11.
Artigo em Inglês | MEDLINE | ID: mdl-37247647

RESUMO

BACKGROUND: Appropriate growth charts are essential for fetal surveillance, to confirm that growth is proceeding normally and to identify pregnancies that are at risk. Many stillbirths are avoidable through antenatal detection of the small-for-gestational-age fetus. In the absence of an international consensus on which growth chart to use, it is essential that clinical practice reflects outcome-based evidence. OBJECTIVE: This study investigated the performance of 4 internationally used fetal weight standards and their ability to identify stillbirth risk in different ethnic and maternal size groups of a heterogeneous population. STUDY DESIGN: We analyzed routinely collected maternity data from more than 2.2 million pregnancies. Three population-based fetal weight standards (Hadlock, Intergrowth-21st, and World Health Organization) were compared with the customized GROW standard that was adjusted for maternal height, weight, parity, and ethnic origin. Small-for-gestational-age birthweight and stillbirth risk were determined for the 2 largest ethnic groups in our population (British European and South Asian), in 5 body mass index categories, and in 4 maternal size groups with normal body mass index (18.5-25.0 kg/m2). The differences in trend between stillbirth and small-for-gestational-age rates were assessed using the Clogg z test, and differences between stillbirths and body mass index groups were assessed using the chi-square trend test. RESULTS: Stillbirth rates (per 1000) were higher in South Asian pregnancies (5.51) than British-European pregnancies (3.89) (P<.01) and increased in both groups with increasing body mass index (P<.01). Small-for-gestational-age rates were 2 to 3-fold higher for South Asian babies than British European babies according to the population-average standards (Hadlock: 26.2% vs 12.2%; Intergrowth-21st: 12.1% vs 4.9%; World Health Organization: 32.2% vs 16.0%) but were similar by the customized GROW standard (14.0% vs 13.6%). Despite the wide variation, each standard's small-for-gestation-age cases had increased stillbirth risk compared with non-small-for-gestation-age cases, with the magnitude of risk inversely proportional to the rate of cases defined as small for gestational age. All standards had similar stillbirth risk when the small-for-gestation-age rate was fixed at 10% by varying their respective thresholds for defining small for gestational age. When analyzed across body mass index subgroups, the small-for-gestation-age rate according to the GROW standard increased with increasing stillbirth rate, whereas small-for-gestation-age rates according to Hadlock, Intergrowth-21st, and World Health Organization fetal weight standards declined with increasing body mass index, showing a difference in trend (P<.01) to stillbirth rates across body mass index groups. In the normal body mass index subgroup, stillbirth rates showed little variation across maternal size groups; this trend was followed by GROW-based small-for-gestation-age rates, whereas small-for-gestation-age rates defined by each population-average standard declined with increasing maternal size. CONCLUSION: Comparisons between population-average and customized fetal growth charts require examination of how well each standard identifies pregnancies at risk of adverse outcomes within subgroups of any heterogeneous population. In both ethnic groups studied, increasing maternal body mass index was accompanied by increasing stillbirth risk, and this trend was reflected in more pregnancies being identified as small for gestational age only by the customized standard. In contrast, small-for-gestation-age rates fell according to each population-average standard, thereby hiding the increased stillbirth risk associated with high maternal body mass index.


Assuntos
Peso Fetal , Natimorto , Recém-Nascido , Gravidez , Feminino , Humanos , Natimorto/epidemiologia , Etnicidade , Idade Gestacional , Índice de Massa Corporal , Recém-Nascido Pequeno para a Idade Gestacional , Retardo do Crescimento Fetal/epidemiologia , Retardo do Crescimento Fetal/diagnóstico , Organização Mundial da Saúde , Ultrassonografia Pré-Natal
3.
Am J Obstet Gynecol ; 2023 Dec 25.
Artigo em Inglês | MEDLINE | ID: mdl-38151221

RESUMO

BACKGROUND: Fetal growth velocity is being recognized as an important parameter by which to monitor fetal wellbeing, in addition to assessment of fetal size. However, there are different models and standards in use by which velocity is being assessed. OBJECTIVE: We wanted to investigate 3 clinically applied methods of assessing growth velocity and their ability to identify stillbirth risk, in addition to that associated with small for gestational age. STUDY DESIGN: Retrospective analysis of prospectively recorded routine-care data of pregnancies with 2 or more third trimester scans in New Zealand. Results of the last 2 scans were used for the analysis. The models investigated to define slow growth were (1) 50+ centile drop between measurements, (2) 30+ centile drop, and (3) estimated fetal weight below a projected optimal weight range, based on predefined, scan interval specific cut-offs to define normal growth. Each method's ability to identify stillbirth risk was assessed against that associated with small-for-gestational age at last scan. RESULTS: The study cohort consisted of 71,576 pregnancies. The last 2 scans in each pregnancy were performed at an average of 32+1 and 35+6 weeks of gestation. The 3 models defined "slow growth" at the following differing rates: (1) 50-centile drop 0.9%, (2) 30-centile drop 5.1%, and (3) below projected optimal weight range 10.8%. Neither of the centile-based models identified at-risk cases that were not also small for gestational age at last scan. The projected weight range method identified an additional 79% of non-small-for-gestational-age cases as slow growth, and these were associated with a significantly increased stillbirth risk (relative risk, 2.0; 95% CI, 1.2-3.4). CONCLUSION: Centile-based methods fail to reflect adequacy of fetal weight gain at the extremes of the distribution. Guidelines endorsing such models might hinder the potential benefits of antenatal assessment of fetal growth velocity. A new, measurement-interval-specific projection model of expected fetal weight gain can identify fetuses that are not small for gestational age, yet at risk of stillbirth because of slow growth. The velocity between scans can be calculated using a freely available growth rate calculator (www.perinatal.org.uk/growthrate).

4.
J Perinat Med ; 50(6): 748-752, 2022 Jul 26.
Artigo em Inglês | MEDLINE | ID: mdl-35618670

RESUMO

OBJECTIVES: Fetal growth and size are associated with stillbirth risk. We wanted to investigate the week by week predictive value of fetal size at term on the prospective risk of stillbirth. METHODS: Anonymised database from the UK GAP program, with 2,094,702 term (≥37 weeks) deliveries including 4,670 stillbirths. Prospective stillbirth risk was defined as fetal death in the current week divided by total undelivered pregnancies. The data were analysed in five centile bands for stillbirth risk and risk ratios (RR) for 38, 39, 40 and 41+ weeks, using appropriate for gestational age (AGA) at 37 weeks as reference. RESULTS: Baseline stillbirth risk at 37 weeks was 0.29 per 1,000 and rose to 1.39 at 41+ weeks, with RR increasing to 4.8. In the 3<10 centile band risk rose from 0.72 to 2.43 over the same period, with RR increasing from 2.5 to 8.4. In the <3 centile group, the stillbirth risk rose from 1.62 to 6.16 (RR (5.6 to 21.2). In the 97>90 centile band, risk increased from 0.40 to 1.50 (RR 1.4 to 5.2) and for >97 centiles, it rose from 0.80 to 2.13 (RR 2.8-7.3). CONCLUSIONS: Prospective risk of fetal death at term is related to fetal size. The information provided, together with other considerations and results of investigations where available, will help clinicians to determine the advice to give to mothers about the best timing for delivery, balancing the baby's risk of compromise with iatrogenic sequelae of early delivery.


Assuntos
Desenvolvimento Fetal , Natimorto , Feminino , Morte Fetal/etiologia , Idade Gestacional , Humanos , Lactente , Gravidez , Estudos Prospectivos , Natimorto/epidemiologia
5.
J Perinat Med ; 50(6): 737-747, 2022 Jul 26.
Artigo em Inglês | MEDLINE | ID: mdl-35618671

RESUMO

Many stillbirths are associated with fetal growth restriction, and are hence potentially avoidable. The Growth Assessment Protocol (GAP) is a multidisciplinary program with an evidence based care pathway, training in risk assessment, fetal growth surveillance with customised charts and rolling audit. Antenatal detection of small for gestational age (SGA) has become an indicator of quality of care. Evaluation is essential to understand the impact of such a prevention program. Randomised trials will not be effective if they cannot ensure proper implementation before assessment. Observational studies have allowed realistic evaluation in practice, with other factors excluded that may have influenced the outcome. An award winning 10 year study of stillbirth data in England has been able to assess the effect of GAP in isolation, and found a strong, causal association with improved antenatal detection of SGA babies, and the sustained decline in national stillbirth rates. The challenge now is to apply this program more widely in low and middle income settings where the main global burden of stillbirth is, and to adapt it to local needs and resources.


Assuntos
Recém-Nascido Pequeno para a Idade Gestacional , Natimorto , Feminino , Desenvolvimento Fetal , Retardo do Crescimento Fetal/diagnóstico , Retardo do Crescimento Fetal/prevenção & controle , Humanos , Recém-Nascido , Gravidez , Natimorto/epidemiologia
7.
J Perinat Med ; 47(3): 270-275, 2019 Apr 24.
Artigo em Inglês | MEDLINE | ID: mdl-30653469

RESUMO

Objective To produce a customised birthweight standard for Slovenia. Methods This retrospective study used a cohort from the National Perinatal Information System of Slovenia (NPIS). Prospectively collected information from pregnancies delivered in all of Slovenia's 14 maternal hospitals between 1st January 2003 and 31st December 2012 was included. Coefficients were derived using a backward stepwise multiple regression technique. Results A total of 126,627 consecutive deliveries with complete data were included in the multivariable analysis. Maternal height, weight in early pregnancy and parity as well as the baby's sex were identified as physiological variables, with coefficients comparable to findings in other countries. The expected 280-day birthweight, free from pathological influences, of a standard size mother (height 163 cm, weight 64 kg) in her first pregnancy was 3451.3 g. Pathological influences on birthweight within this population included low and high maternal age, low and high body mass index (BMI), smoking, pre-existing and gestational diabetes and pre-existing and gestational hypertension. Conclusion The analysis confirmed the main physiological variables that affect birthweight in studies from other countries, and was able to quantify additional pathological factors of maternal age and gestational diabetes. Development of a country-specific customised birthweight standard will aid clinicians in Slovenia with the distinction between normal and abnormal small-for-gestational age (SGA) fetuses, thus avoiding unnecessary interventions and improving identification of at risk pregnancies, and long-term outcomes for infants.


Assuntos
Peso ao Nascer , Feminino , Humanos , Recém-Nascido , Masculino , Padrões de Referência , Estudos Retrospectivos , Eslovênia
8.
Am J Obstet Gynecol ; 218(2S): S692-S699, 2018 02.
Artigo em Inglês | MEDLINE | ID: mdl-29422208

RESUMO

BACKGROUND: Fetal growth abnormalities are linked to stillbirth and other adverse pregnancy outcomes, and use of the correct birthweight standard is essential for accurate assessment of growth status and perinatal risk. OBJECTIVE: Two competing, conceptually opposite birthweight standards are currently being implemented internationally: customized gestation-related optimal weight (GROW) and INTERGROWTH-21st. We wanted to compare their performance when applied to a multiethnic international cohort, and evaluate their usefulness in the assessment of stillbirth risk at term. STUDY DESIGN: We analyzed routinely collected maternity data from 10 countries with a total of 1.25 million term pregnancies in their respective main ethnic groups. The 2 standards were applied to determine small for gestational age (SGA) and large for gestational age (LGA) rates, with associated relative risk and population-attributable risk of stillbirth. The customized standard (GROW) was based on the term optimal weight adjusted for maternal height, weight, parity, and ethnic origin, while INTERGROWTH-21st was a fixed standard derived from a multiethnic cohort of low-risk pregnancies. RESULTS: The customized standard showed an average SGA rate of 10.5% (range 10.1-12.7) and LGA rate of 9.5% (range 7.3-9.9) for the set of cohorts. In contrast, there was a wide variation in SGA and LGA rates with INTERGROWTH-21st, with an average SGA rate of 4.4% (range 3.1-16.8) and LGA rate of 20.6% (range 5.1-27.5). This variation in INTERGROWTH-21st SGA and LGA rates was correlated closely (R = ±0.98) to the birthweights predicted for the 10 country cohorts by the customized method to derive term optimal weight, suggesting that they were mostly due to physiological variation in birthweight. Of the 10.5% of cases defined as SGA according to the customized standard, 4.3% were also SGA by INTERGROWTH-21st and had a relative risk of 3.5 (95% confidence interval, 3.1-4.1) for stillbirth. A further 6.3% (60% of the whole customized SGA) were not SGA by INTERGROWTH-21st, and had a relative risk of 1.9 (95% confidence interval, 3.1-4.1) for stillbirth. An additional 0.2% of cases were SGA by INTERGROWTH-21st only, and had no increased risk of stillbirth. At the other end, customized assessment classified 9.5% of births as large for gestational age, most of which (9.0%) were also LGA by the INTERGROWTH-21st standard. INTERGROWTH-21st identified a further 11.6% as LGA, which, however, had a reduced risk of stillbirth (relative risk, 0.6; 95% confidence interval, 0.5-0.7). CONCLUSION: Customized assessment resulted in increased identification of small for gestational age and stillbirth risk, while the wide variation in SGA rates using the INTERGROWTH-21st standard appeared to mostly reflect differences in physiological pregnancy characteristics in the 10 maternity populations.


Assuntos
Peso ao Nascer , Retardo do Crescimento Fetal/diagnóstico , Macrossomia Fetal/diagnóstico , Gráficos de Crescimento , Natimorto/epidemiologia , Adulto , Feminino , Desenvolvimento Fetal , Humanos , Recém-Nascido , Masculino , Gravidez , Medição de Risco
9.
Am J Obstet Gynecol ; 218(2S): S609-S618, 2018 02.
Artigo em Inglês | MEDLINE | ID: mdl-29422203

RESUMO

Appropriate standards for the assessment of fetal growth and birthweight are central to good clinical care, and have become even more important with increasing evidence that growth-related adverse outcomes are potentially avoidable. Standards need to be evidence based and validated against pregnancy outcome and able to demonstrate utility and effectiveness. A review of proposals by the Intergrowth consortium to adopt their single international standard finds little support for the claim that the cases that it identifies as small are due to malnutrition or stunting, and substantial evidence that there is normal physiologic variation between different countries and ethnic groups. It is possible that the one-size-fits-all standard ends up fitting no one and could be harmful if implemented. An alternative is the concept of country-specific charts that can improve the association between abnormal growth and adverse outcome. However, such standards ignore individual physiologic variation that affects fetal growth, which exists in any heterogeneous population and exceeds intercountry differences. It is therefore more logical to adjust for the characteristics of each mother, taking her ethnic origin and her height, weight, and parity into account, and to set a growth and birthweight standard for each pregnancy against which actual growth can be assessed. A customized standard better reflects adverse pregnancy outcome at both ends of the fetal size spectrum and has increased clinicians' confidence in growth assessment, while providing reassurance when abnormal size merely represents physiologic variation. Rollout in the United Kingdom has proceeded as part of the comprehensive Growth Assessment Protocol (GAP), and has resulted in a steady increase in antenatal detection of babies who are at risk because of fetal growth restriction. This in turn has been accompanied by a year-on-year drop in stillbirth rates to their lowest ever levels in England. A global version of customized growth charts with over 100 ethnic origin categories is being launched in 2018, and will provide an individualized, yet universally applicable, standard for fetal growth.


Assuntos
Variação Biológica da População , Etnicidade , Desenvolvimento Fetal , Gráficos de Crescimento , Peso ao Nascer , Estatura , Peso Corporal , Medicina Baseada em Evidências , Feminino , Retardo do Crescimento Fetal/diagnóstico , Macrossomia Fetal/diagnóstico , Humanos , Recém-Nascido , Recém-Nascido Pequeno para a Idade Gestacional , Gravidez , Reprodutibilidade dos Testes , Natimorto
11.
J Perinat Med ; 50(9): 1281-1282, 2022 11 25.
Artigo em Inglês | MEDLINE | ID: mdl-36205488
12.
BMC Pregnancy Childbirth ; 16(1): 295, 2016 10 05.
Artigo em Inglês | MEDLINE | ID: mdl-27716090

RESUMO

BACKGROUND: Each year, about 5.3 million babies die in the perinatal period. Understanding of causes of death is critical for prevention, yet there is no globally acceptable classification system. Instead, many disparate systems have been developed and used. We aimed to identify all systems used or created between 2009 and 2014, with their key features, including extent of alignment with the International Classification of Diseases (ICD) and variation in features by region, to inform the World Health Organization's development of a new global approach to classifying perinatal deaths. METHODS: A systematic literature review (CINAHL, EMBASE, Medline, Global Health, and PubMed) identified published and unpublished studies and national reports describing new classification systems or modifications of existing systems for causes of perinatal death, or that used or tested such systems, between 2009 and 2014. Studies reporting ICD use only were excluded. Data were independently double-extracted (except from non-English publications). Subgroup analyses explored variation by extent and region. RESULTS: Eighty-one systems were identified as new, modifications of existing systems, or having been used between 2009 and 2014, with an average of ten systems created/modified each year. Systems had widely varying characteristics: (i) comprehensiveness (40 systems classified both stillbirths and neonatal deaths); (ii) extent of use (systems were created in 28 countries and used in 40; 17 were created for national use; 27 were widely used); (iii) accessibility (three systems available in e-format); (iv) underlying cause of death (64 systems required a single cause of death); (v) reliability (10 systems tested for reliability, with overall Kappa scores ranging from .35-.93); and (vi) ICD alignment (17 systems used ICD codes). Regional databases were not searched, so system numbers may be underestimated. Some non-differential misclassification of systems was possible. CONCLUSIONS: The plethora of systems in use, and continuing system development, hamper international efforts to improve understanding of causes of death. Recognition of the features of currently used systems, combined with a better understanding of the drivers of continued system creation, may help the development of a truly effective global system.


Assuntos
Causas de Morte , Classificação/métodos , Saúde Global/classificação , Morte Perinatal/etiologia , Natimorto/epidemiologia , Feminino , Humanos , Recém-Nascido , Classificação Internacional de Doenças , Masculino , Gravidez , Reprodutibilidade dos Testes
13.
BMC Pregnancy Childbirth ; 16: 269, 2016 09 15.
Artigo em Inglês | MEDLINE | ID: mdl-27634615

RESUMO

BACKGROUND: To reduce the burden of 5.3 million stillbirths and neonatal deaths annually, an understanding of causes of deaths is critical. A systematic review identified 81 systems for classification of causes of stillbirth (SB) and neonatal death (NND) between 2009 and 2014. The large number of systems hampers efforts to understand and prevent these deaths. This study aimed to assess the alignment of current classification systems with expert-identified characteristics for a globally effective classification system. METHODS: Eighty-one classification systems were assessed for alignment with 17 characteristics previously identified through expert consensus as necessary for an effective global system. Data were extracted independently by two authors. Systems were assessed against each characteristic and weighted and unweighted scores assigned to each. Subgroup analyses were undertaken by system use, setting, type of death included and type of characteristic. RESULTS: None of the 81 systems were aligned with more than 9 of the 17 characteristics; most (82 %) were aligned with four or fewer. On average, systems were aligned with 19 % of characteristics. The most aligned system (Frøen 2009-Codac) still had an unweighted score of only 9/17. Alignment with individual characteristics ranged from 0 to 49 %. Alignment was somewhat higher for widely used as compared to less used systems (22 % v 17 %), systems used only in high income countries as compared to only in low and middle income countries (20 % vs 16 %), and systems including both SB and NND (23 %) as compared to NND-only (15 %) and SB-only systems (13 %). Alignment was higher with characteristics assessing structure (23 %) than function (15 %). CONCLUSIONS: There is an unmet need for a system exhibiting all the characteristics of a globally effective system as defined by experts in the use of systems, as none of the 81 contemporary classification systems assessed was highly aligned with these characteristics. A particular concern in terms of global effectiveness is the lack of alignment with "ease of use" among all systems, including even the most-aligned. A system which meets the needs of users would have the potential to become the first truly globally effective classification system.


Assuntos
Causas de Morte , Classificação/métodos , Saúde Global/classificação , Morte Perinatal/etiologia , Natimorto , Feminino , Humanos , Recém-Nascido , Masculino , Gravidez
14.
BMC Pregnancy Childbirth ; 16: 223, 2016 08 15.
Artigo em Inglês | MEDLINE | ID: mdl-27527704

RESUMO

BACKGROUND: Despite the global burden of perinatal deaths, there is currently no single, globally-acceptable classification system for perinatal deaths. Instead, multiple, disparate systems are in use world-wide. This inconsistency hinders accurate estimates of causes of death and impedes effective prevention strategies. The World Health Organisation (WHO) is developing a globally-acceptable classification approach for perinatal deaths. To inform this work, we sought to establish a consensus on the important characteristics of such a system. METHODS: A group of international experts in the classification of perinatal deaths were identified and invited to join an expert panel to develop a list of important characteristics of a quality global classification system for perinatal death. A Delphi consensus methodology was used to reach agreement. Three rounds of consultation were undertaken using a purpose built on-line survey. Round one sought suggested characteristics for subsequent scoring and selection in rounds two and three. RESULTS: The panel of experts agreed on a total of 17 important characteristics for a globally-acceptable perinatal death classification system. Of these, 10 relate to the structural design of the system and 7 relate to the functional aspects and use of the system. CONCLUSION: This study serves as formative work towards the development of a globally-acceptable approach for the classification of the causes of perinatal deaths. The list of functional and structural characteristics identified should be taken into consideration when designing and developing such a system.


Assuntos
Causas de Morte , Classificação/métodos , Saúde Global/normas , Morte Perinatal/etiologia , Consenso , Técnica Delphi , Feminino , Humanos , Recém-Nascido , Gravidez
15.
J Obstet Gynaecol Can ; 38(2): 168-76, 2016 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-27032743

RESUMO

OBJECTIVE: As part of a larger study, an interprofessional team piloted a computer tool called Standardized Clinical Outcome Review (SCOR) to review adverse obstetric events that occurred at a tertiary care hospital over a 12-month period. We sought to understand whether the SCOR tool offered a feasible, acceptable, and appropriate strategy for improving patient safety through improved review of incidents. METHODS: We designed a mixed methods implementation study. Following completion of the 12-month pilot period, team members completed a questionnaire and participated in a focus group. Quantitative data analysis was performed using descriptive statistics, and qualitative data were analyzed using grounded theory to generate themes. RESULTS: The SCOR tool was easy to implement with an interprofessional team. Despite technical challenges with the software, the tool was quicker and more efficient than traditional case review methods. The content was appropriate for an obstetric unit and provided objective identification of factors contributing to adverse events. Team members were positive about the use of the tool in their institution and in wider contexts and believed that it was a valuable tool for raising awareness and addressing patient safety at their unit. CONCLUSIONS: SCOR was an acceptable and appropriate tool for the interprofessional team review of adverse outcomes, and its use represents a significant advance in the quality assurance process for formal peer review of incidents.


Assuntos
Aplicações da Informática Médica , Obstetrícia , Segurança do Paciente , Garantia da Qualidade dos Cuidados de Saúde , Software , Feminino , Humanos , Obstetrícia/organização & administração , Obstetrícia/normas , Obstetrícia/estatística & dados numéricos , Equipe de Assistência ao Paciente , Gravidez
16.
J Obstet Gynaecol Can ; 37(8): 728-735, 2015 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-26474230

RESUMO

OBJECTIVE: Adverse events occur in up to 10% of obstetric cases, and up to one half of these could be prevented. Case reviews and root cause analysis using a structured tool may help health care providers to learn from adverse events and to identify trends and recurring systems issues. We sought to establish the reliability of a root cause analysis computer application called Standardized Clinical Outcome Review (SCOR). METHODS: We designed a mixed methods study to evaluate the effectiveness of the tool. We conducted qualitative content analysis of five charts reviewed by both the traditional obstetric quality assurance methods and the SCOR tool. We also determined inter-rater reliability by having four health care providers review the same five cases using the SCOR tool. RESULTS: The comparative qualitative review revealed that the traditional quality assurance case review process used inconsistent language and made serious, personalized recommendations for those involved in the case. In contrast, the SCOR review provided a consistent format for recommendations, a list of action points, and highlighted systems issues. The mean percentage agreement between the four reviewers for the five cases was 75%. The different health care providers completed data entry and assessment of the case in a similar way. Missing data from the chart and poor wording of questions were identified as issues affecting percentage agreement. CONCLUSION: The SCOR tool provides a standardized, objective, obstetric-specific tool for root cause analysis that may improve identification of risk factors and dissemination of action plans to prevent future events.


Objectif : Des événements indésirables se manifestent dans jusqu'à 10 % des cas obstétricaux et jusqu'à la moitié de ces événements sont évitables. Les analyses de cas et l'analyse des causes fondamentales au moyen d'un outil structuré pourraient aider les fournisseurs de soins à tirer des leçons des événements indésirables et à identifier les tendances et les problèmes systémiques récurrents. Nous avons cherché à établir la fiabilité d'un logiciel d'analyse des causes fondamentales connu sous le nom de Standardized Clinical Outcome Review (SCOR). Méthodes : Nous avons conçu une étude faisant appel à des méthodes mixtes pour évaluer l'efficacité de l'outil. Nous avons mené une analyse qualitative du contenu de cinq dossiers ayant été analysés tant au moyen des méthodes traditionnelles d'assurance de la qualité en obstétrique qu'au moyen de l'outil SCOR. Nous avons également déterminé la fidélité interévaluateurs en demandant à quatre fournisseurs de soins d'analyser les cinq mêmes dossiers au moyen de l'outil SCOR. Résultats : L'analyse qualitative comparative a révélé que le processus traditionnel d'assurance de la qualité dans le cadre de l'analyse des cas utilisait un langage hétérogène et formulait de sérieuses recommandations personnalisées à l'endroit des intervenants du dossier. En revanche, l'analyse au moyen de l'outil SCOR fournissait un format uniforme pour les recommandations et une liste de points de décision, en plus de faire ressortir les problèmes systémiques. Le taux moyen d'entente (en pourcentage) entre les quatre évaluateurs pour les cinq dossiers en question était de 75 %. Les autres fournisseurs de soins ont procédé à la saisie des données et à l'évaluation des dossiers de façon semblable. L'absence de certaines données dans les dossiers et la mauvaise formulation des questions ont été identifiées comme étant des problèmes affectant le taux d'entente. Conclusion : L'outil SCOR permet la tenue d'une analyse des causes fondamentales de façon standardisée, objective et centrée sur l'obstétrique, ce qui pourrait améliorer l'identification des facteurs de risque et la dissémination des plans d'action pour la prévention de futurs événements.


Assuntos
Tomada de Decisões Assistida por Computador , Complicações do Trabalho de Parto , Avaliação de Processos e Resultados em Cuidados de Saúde/métodos , Complicações na Gravidez , Análise de Causa Fundamental , Feminino , Humanos , Gravidez , Gestão de Riscos/métodos
18.
J Obstet Gynaecol Can ; 36(5): 408-415, 2014 May.
Artigo em Inglês | MEDLINE | ID: mdl-24927293

RESUMO

Customized growth charts reduce complexity in antenatal care for the expectant mother and her clinicians by improving the distinction between physiological and pathological variation in fetal size. Their application in large databases has improved our understanding of the importance of intrauterine growth restriction and its antenatal recognition. Their implementation into clinical practice, together with the appropriate training and referral protocols, has been shown to reduce the risk of stillbirth.


Les tableaux de croissance adaptés atténuent la complexité dans le domaine des soins prénataux pour la future mère et ses cliniciens en clarifiant la distinction entre les variations physiologiques et pathologiques de la taille du fœtus. Leur mise en application dans d'importantes bases de données a entraîné l'amélioration de notre compréhension de l'importance du retard de croissance intra-utérin et de son identification pendant la période prénatale. Il a été démontré que leur intégration à la pratique clinique, conjointement avec l'offre d'une formation appropriée et la mise en place de protocoles d'orientation, entraîne la baisse du risque de mortinaissance.


Assuntos
Retardo do Crescimento Fetal , Complicações na Gravidez/epidemiologia , Estatística como Assunto , Feminino , Humanos , Modelos Estatísticos , Gravidez , Medição de Risco/métodos
19.
Lancet ; 377(9775): 1448-63, 2011 Apr 23.
Artigo em Inglês | MEDLINE | ID: mdl-21496911

RESUMO

Despite increasing attention and investment for maternal, neonatal, and child health, stillbirths remain invisible-not counted in the Millennium Development Goals, nor tracked by the UN, nor in the Global Burden of Disease metrics. At least 2·65 million stillbirths (uncertainty range 2·08 million to 3·79 million) were estimated worldwide in 2008 (≥1000 g birthweight or ≥28 weeks of gestation). 98% of stillbirths occur in low-income and middle-income countries, and numbers vary from 2·0 per 1000 total births in Finland to more than 40 per 1000 total births in Nigeria and Pakistan. Worldwide, 67% of stillbirths occur in rural families, 55% in rural sub-Saharan Africa and south Asia, where skilled birth attendance and caesarean sections are much lower than that for urban births. In total, an estimated 1·19 million (range 0·82 million to 1·97 million) intrapartum stillbirths occur yearly. Most intrapartum stillbirths are associated with obstetric emergencies, whereas antepartum stillbirths are associated with maternal infections and fetal growth restriction. National estimates of causes of stillbirths are scarce, and multiple (>35) classification systems impede international comparison. Immediate data improvements are feasible through household surveys and facility audit, and improvements in vital registration, including specific perinatal certificates and revised International Classification of Disease codes, are needed. A simple, programme-relevant stillbirth classification that can be used with verbal autopsy would provide a basis for comparable national estimates. A new focus on all deaths around the time of birth is crucial to inform programmatic investment.


Assuntos
Países em Desenvolvimento , Natimorto/epidemiologia , Causas de Morte , Coleta de Dados , Países Desenvolvidos/estatística & dados numéricos , Países em Desenvolvimento/estatística & dados numéricos , Medidas em Epidemiologia , Feminino , Morte Fetal/classificação , Humanos , Mortalidade Materna , Gravidez , Complicações na Gravidez
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