Vasa previa: A rare obstetric complication–A case series and a literature review

Degirmenci, Yaman; Steetskamp, J; Macchiella, D; Hasenburg, Annbalou; Hasenburg, Annette

doi:10.1002/ccr3.5608

Cited by 6 publications

(12 citation statements)

References 43 publications

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“…Figure 1 shows the selection scheme used in this study. First, 1364 studies were identified, and 20 studies met the study criteria for descriptive analysis [ 14 , 34 , 35 , 36 , 37 , 38 , 39 , 40 , 41 , 42 , 43 , 44 , 45 , 46 , 47 , 48 , 49 , 50 , 51 , 52 ]. Two studies reported by Suzuki et al [ 36 , 37 ] used overlapped data (due to overlapping study periods); however, the outcome of interest was different in these studies.…”

Section: Resultsmentioning

confidence: 99%

“…Regarding the study type ( n = 20), all studies were retrospective in nature, 14 were original articles, 4 were case series, and 2 were case reports. Of these ( n = 20), the published years were between 1998 and 2022, and all studies were retrospective [ 14 , 34 , 35 , 36 , 37 , 38 , 39 , 40 , 41 , 42 , 43 , 44 , 45 , 46 , 47 , 48 , 49 , 50 , 51 , 52 ]. No prospective studies or randomized controlled trials have been reported.…”

Section: Resultsmentioning

confidence: 99%

“…Among the eligible studies ( n = 20), approximately one-third were reported from Europe ( n = 6, 30.0%) [ 38 , 41 , 44 , 45 , 46 , 51 ] followed by Japan ( n = 5, 25.0%) [ 36 , 37 , 39 , 47 , 48 ], the United States ( n = 5, 25.0%) [ 14 , 35 , 43 , 49 , 52 ], and others ( n = 4, 20.0%) [ 34 , 40 , 42 , 50 ].…”

Section: Resultsmentioning

confidence: 99%

“…A systematic review was performed to identify previous studies that included women with type II vasa previa, and 16 studies met the criteria ( Table 1 ) [ 14 , 38 , 39 , 40 , 41 , 42 , 43 , 44 , 45 , 46 , 47 , 48 , 49 , 50 , 51 , 52 ]. Of these ( n = 16), seven studies were original articles, six were case series, and the remaining three studies were case reports.…”

Section: Resultsmentioning

confidence: 99%

“…Of these ( n = 16), seven studies were original articles, six were case series, and the remaining three studies were case reports. Among the case series and reports ( n = 9), the studies included women with vasa previa, and the outcomes were reported; however, no specific characteristics or outcomes of type II vasa previa have been reported [ 14 , 38 , 45 , 46 , 47 , 48 , 49 , 50 , 51 ]. Moreover, no studies have compared the characteristics and outcomes of type I and type II vasa previa.…”

Section: Resultsmentioning

confidence: 99%

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The Characteristics and Obstetric Outcomes of Type II Vasa Previa: Systematic Review and Meta-Analysis

et al. 2022

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Vasa previa is a rare fetal life-threatening obstetric disease classified into types I and II. This study aimed to examine the characteristics and obstetric outcomes of type II vasa previa. A systematic review was performed, and 20 studies (1998–2022) were identified. The results from six studies showed that type II vasa previa accounted for 21.3% of vasa previa cases. The characteristics and obstetric outcomes (rate of assisted reproductive technology (ART), antenatal diagnosis, emergent cesarean delivery, maternal transfusion, gestational age at delivery, and neonatal mortality) were compared between type I and II vasa previa, and all outcomes of interest were similar. The association between ART and abnormal placenta (bilobed placenta or succenturiate lobe) was examined in three studies, and the results were as follows: (i) increased rate of succenturiate lobes (ART versus non-ART pregnancy; OR (odds ratio) 6.97, 95% confidence interval (CI) 2.45–19.78); (ii) similar rate of abnormal placenta (cleavage-stage versus blastocyst embryo transfer); (iii) increased rate of abnormal placenta (frozen versus fresh embryo transfer; OR 2.97, 95%CI 1.10–7.96). Although the outcomes of type II vasa previa appear to be similar to those of type I vasa previa, the current evidence is insufficient for a robust conclusion.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

See 3 more Smart Citations

The Characteristics and Obstetric Outcomes of Type II Vasa Previa: Systematic Review and Meta-Analysis

et al. 2022

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Prenatal diagnosis and postnatal outcome of Type‐III vasa previa: systematic review of literature

Pozzoni,

Sammaria,

Villanacci

et al. 2024

Ultrasound in Obstet & Gyne

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ObjectiveVasa previa (VP) is a condition characterized by fetal blood vessels located on the amniotic membranes and outside the placenta, within 2 cm from internal os. The most common forms of VP are associated to velamentous cord insertion (type I) or to bilobed‐succenturiate placenta (type II), located across the cervix. A rare form of VP, not necessarily associated to other placental or vascular anomalies, involves aberrant vessels running from the placenta to the amniotic membranes, nearby the internal os, and then turning back to the placenta (type III). Although early diagnosis of type III VP is important, it often technically challenging and difficult. The objective of our study is to gather the current available evidence on type III VP related to prenatal diagnosis and perinatal outcome.MethodsA systematic review of the literature was carried out according to PRISMA guidelines from inception up to March 2023 using common internet‐based databases (PubMed, Scopus and EMBASE) looking for perinatal diagnosis of atypical type III vasa previa. Data extraction and tabulation was carried out by two different operators and double‐checked by a third senior author. Quality assessment of the included studies was realized using the National Institute of Health (NIH) tool for the quality assessment of Case Series Studies. Recent unpublished cases were searched in our local ultrasound database. Frequencies and proportions of prenatally vs. postnatally diagnosed type III VP were summarized, including clinical expression and perinatal outcomes.ResultsEighteen cases of type III VP were detected: 16 with prenatal diagnosis (14 from 10 publications and 2 unpublished from our center) and 2 with postnatal diagnosis from two publications. All cases with prenatal diagnosis were assessed by transvaginal ultrasound at a mean gestational age of 29 weeks (median 31 weeks; range 19‐38 weeks). Conception was achieved with IVF in 4/16 (25%), there were no prenatal symptoms in 15/18 cases (83.3%), in two cases (11.1 %) there was vaginal bleeding and in one (5.6%) preterm labour. Only 3/18 (16.6%) cases had no placental abnormality and 15/18 (83.3 %) showed at least one placental abnormality including: low‐lying insertion (9/17), succenturiate or accessory lobe (1/17), velamentous cord insertion (3/18), marginal insertion (9/18). All cases with prenatal diagnosis were liveborn with cesarean section before rupture of membranes at a mean gestational age of 35.4 weeks (range 32‐38) without neonatal complications. Emergent cesarean section was observed in 2/16 cases with prenatal diagnosis and 1/2 cases with postnatal diagnosis (rates: 12.5% vs 50%; p‐value: 0.179), Apgar score≤7 at 1 or 5 minutes in prenatally vs postnatally diagnosed cases was observed in 5/16 vs 1/2 cases (p=0.595) and 3/16 vs 1/2 cases (p=0.316), respectively.ConclusionsThe prenatal diagnosis of VP type III is challenging with few cases reported in the literature; however, it minimizes the risks of an adverse outcome with intact membranes early‐term elective cesarean delivery. Since clinical manifestations and risk factors are not specific, and type III VP cannot be excluded when there is a normal cord insertion or just one placental mass, a generalized screening by transvaginal ultrasound in the general population is recommended, particularly in presence of low‐lying or morphologically abnormal placentas and medically assisted reproduction.This article is protected by copyright. All rights reserved.

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Un studiu retrospectiv într-un context de caz special: vasa praevia cauzată de o inserţie velamentoasă a cordonului ombilical

Șerbănescu,

Rotar,

Ionescu

et al. 2024

Ginecologia.ro

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Vasa previa: A rare obstetric complication–A case series and a literature review

Cited by 6 publications

References 43 publications

The Characteristics and Obstetric Outcomes of Type II Vasa Previa: Systematic Review and Meta-Analysis

The Characteristics and Obstetric Outcomes of Type II Vasa Previa: Systematic Review and Meta-Analysis

Prenatal diagnosis and postnatal outcome of Type‐III vasa previa: systematic review of literature

Un studiu retrospectiv într-un context de caz special: vasa praevia cauzată de o inserţie velamentoasă a cordonului ombilical

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