Obstetric implications of low‐lying placentas diagnosed in the second trimester

Ogueh, Onome; Morin, Lucie; Usher, Robert H.; Benjamin, Alice

doi:10.1016/s0020-7292(03)00211-x

Cited by 26 publications

(26 citation statements)

References 25 publications

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“…29.67% of women were prior cesarean delivery (n = 954), 67.73% of women were multiparae (n = 3322) and 6.85% of women were accompanied with placenta accrate. Six studies [28, 29, 31, 33–35] (n = 1329) including women were diagnosed with low-lying placenta previa. The prevalence of PPH ranged from 3.6% [31] to 58.7% [30].…”

Section: Resultsmentioning

confidence: 99%

“…Six studies [28, 29, 31, 33–35] (n = 1329) including women were diagnosed with low-lying placenta previa. The prevalence of PPH ranged from 3.6% [31] to 58.7% [30]. When evaluated by STROBE quality assessment criteria, two studies [33, 37] received 9 points, five [29–31, 34, 35] received 8 points, and four [6, 28, 32, 36] received 7 points (S2 Table).…”

Section: Resultsmentioning

confidence: 99%

“…The prevalence of PPH ranged from 3.6% [31] to 58.7% [30]. When evaluated by STROBE quality assessment criteria, two studies [33, 37] received 9 points, five [29–31, 34, 35] received 8 points, and four [6, 28, 32, 36] received 7 points (S2 Table). The quality scores showed that studies were acceptable quality.…”

Section: Resultsmentioning

confidence: 99%

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The Incidence of Postpartum Hemorrhage in Pregnant Women with Placenta Previa: A Systematic Review and Meta-Analysis

et al. 2017

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BackgroundThe global burden of postpartum hemorrhage (PPH) in women with placenta previa is a major public health concern. Although there are different reports on the incidence of PPH in different countries, to date, no research has reviewed them.ObjectiveThe aim of this study was to calculate the average point incidence of PPH in women with placenta previa.MethodsA systematic review and meta-analysis of observational studies estimating PPH in women with placenta previa was conducted through literature searches in four databases in Jul 2016. This study was totally conducted according to the MOOSE guidelines and in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses standard.ResultsFrom 1148 obtained studies, 11 included in the meta-analysis, which involved 5146 unique pregnant women with placenta previa. The overall pooled incidence of PPH was 22.3% (95% CI 15.8–28.7%). In the subgroup, the prevalence was 27.4% in placenta previas, and was 14.5% in low-lying placenta previa; the highest prevalence was estimated in Northern America (26.3%, 95%CI 11.0–41.6%), followed by the Asia (20.7%, 95%CI 12.8–28.6%), Australia (19.2%, 95% CI 17.2–21.1%) and Europe (17.8%, 95% CI, 11.5%-24.0%).ConclusionsThe summary estimate of the incidence of PPH among women with placenta previa was considerable in this systematic review. The results will be crucial in prevention, treatment, and identification of PPH among pregnant women with placenta previa and will be contributed to the planning and implantation of relevant public health strategies.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

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The Incidence of Postpartum Hemorrhage in Pregnant Women with Placenta Previa: A Systematic Review and Meta-Analysis

et al. 2017

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“…Twenty-five retrospective and four prospective cohort studies involving a total of 4687 individuals were included in the study (Table 1). Fourteen1516171819202122232425262728 took place in Asia, eight529303132333435 in North America, six101136373839 in Europe, and one40 in Africa. The articles were published between 1985 and 2016, and the median number of participants per study was 162 (range, 40–703).…”

Section: Resultsmentioning

confidence: 99%

Prevalence of antepartum hemorrhage in women with placenta previa: a systematic review and meta-analysis

Fan

Liu

et al. 2017

Sci Rep

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Antepartum hemorrhage (APH) is an important cause of perinatal mortality and maternal morbidity in pregnant women with placenta previa in the world. However, the epidemiological characteristics are not completely understood. We performed an initial systematic review and meta-analysis to assess the prevalence of APH in pregnant women with placenta previa. It was totally performed following the Preferred Reporting Items for Systematic reviews and Meta-Analysis statement. PubMed, Elsevier Science Direct, and the Cochrane Library were searched before April 2016. A meta-analysis with a random-effects model based on a proportions approach was performed to determine the prevalence. Stratified analyses, meta-regression method, and sensitivity analysis were utilized to analyze the heterogeneity. A total of 29 articles were included. The pooled overall prevalence of APH among pregnant women with placenta previa was 51.6% (95% CI 42.7–60.6) in a heterogeneous set of studies (I2 = 97.9). Correlation analysis found that there was a positive correlation between prevalence and percentage of multiparous (r = 0.534, P = 0.027) and a negative correlation between prevalence and survey year (r = −0.400, P = 0.031). In conclusion, the prevalence of APH was a high condition among pregnant women with placenta previa.

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“…Abnormal cord insertion and placenta previa have been associated with ART, but their effects on fetal growth restriction are unclear (25)(26)(27)(28).…”

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confidence: 99%

DNA methylation at H19/IGF2 ICR1 in the placenta of pregnancies conceived by in vitro fertilization and intracytoplasmic sperm injection

Wong

Hatakeyama

Robinson

et al. 2011

Fertility and Sterility

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Obstetric implications of low‐lying placentas diagnosed in the second trimester

Abstract: Pregnant women with low-lying placentas in the second trimester have a higher incidence of postpartum hemorrhage and hence, it would be prudent to carefully manage the third stage of labor in these women.

Cited by 26 publications

References 25 publications

The Incidence of Postpartum Hemorrhage in Pregnant Women with Placenta Previa: A Systematic Review and Meta-Analysis

The Incidence of Postpartum Hemorrhage in Pregnant Women with Placenta Previa: A Systematic Review and Meta-Analysis

Prevalence of antepartum hemorrhage in women with placenta previa: a systematic review and meta-analysis

DNA methylation at H19/IGF2 ICR1 in the placenta of pregnancies conceived by in vitro fertilization and intracytoplasmic sperm injection

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