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

Matsuzaki, Shinya; Ueda, Yutaka; Kakuda, Mamoru; Lee, Misooja; Takemoto, Yuki; Hayashida, Harue; Maeda, Michihide; Kakubari, Reisa; Hisa, Tsuyoshi; Mabuchi, Seiji; Kamiura, Shoji

doi:10.3390/biomedicines10123263

Cited by 11 publications

(18 citation statements)

References 82 publications

(228 reference statements)

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“…Type 2, in which fetal blood arteries are present in the same region as type 1 but instead run between the placenta's lobes (bilobed or succenturiate lobed), as in the situation at hand. (1),(3),( 5), (6) According to theory, during an ultrasound examination (transabdominal with colour-coded Doppler ultrasound), fetal vessels are present between the fetal head and cervix. This case is classified as vasa previa type 1 because of a velamentous cord insertion.…”

Section: Discussionmentioning

confidence: 99%

Vasa Previa: A Case Report from Tiom General Medical Hospital Lanny Jaya Regency, Papua-Indonesia

Pratiwi

2023

Gal Int J Health Sci Res

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Vasa previa refers to the state of fetal vasculature running within the membranes covering the cervix and under the presenting region of the fetus without being shielded by the placenta or umbilical cord. Due to its membranous vessels, the risk of compression or rupture could result in fetal demise, exsanguination, or even death. The cause is unknown, although risk factors include placenta previa, velamentous cord insertion, bilobed or succenturiate-lobed placentas, multiple pregnancies, and IVF-related pregnancies. In this article, we'll present a single instance of vasa previa discovered after an ultrasound and physical examination performed on a patient 39 weeks pregnant who came with complaints of bleeding from the birth canal-like signs of labor. Keywords: Vasa Previa, Pregnancy, Velamentous Cord Insertion, Bleeding, Fetal Demise

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Section: Discussionmentioning

confidence: 99%

Vasa Previa: A Case Report from Tiom General Medical Hospital Lanny Jaya Regency, Papua-Indonesia

Pratiwi

2023

Gal Int J Health Sci Res

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“…1 and 2 B). 26 , 27 Type 3 results from aberrant fetal vessels that run from one edge of the placenta through the membranes to another edge of the placenta (Fig. 2 C).…”

Section: Types Of Vasa Previa and Pathophysiologymentioning

confidence: 99%

Vasa Previa

Oyelese,

Javinani,

Shamshirsaz

2023

Obstetrics &Amp; Gynecology

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Vasa previa refers to unprotected fetal vessels running through the membranes over the cervix. Until recently, this condition was associated with an exceedingly high perinatal mortality rate attributable to fetal exsanguination when the membranes ruptured. However, ultrasonography has made it possible to diagnose the condition prenatally, allowing cesarean delivery before labor or rupture of the membranes. Several recent studies have indicated excellent outcomes with prenatally diagnosed vasa previa. However, outcomes continue to be dismal when vasa previa is undiagnosed before labor. Risk factors for vasa previa include second-trimester placenta previa and low-lying placentas, velamentous cord insertion, placentas with accessory lobes, in vitro fertilization, and multifetal gestations. Recognition of individuals who are at risk and screening them will greatly decrease the mortality rate from this condition. Because of the relative rarity of vasa previa, there are no randomized controlled trials to guide management. Therefore, recommendations on the diagnosis and management of vasa previa are based largely on cohort studies and expert opinion. This Clinical Expert Series review addresses the epidemiology, pathophysiology, natural history, diagnosis and management of vasa previa, as well as innovative treatments for the condition.

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“…All the titles and abstracts were reviewed by Shinya Matsuzaki and Misooja Lee. As in our previous study [17], the type of study was defined according to the following criteria: (i) case report (1 or 2), (ii) case series (3)(4)(5)(6)(7)(8)(9)(10), and (iii) original articles (11≥).…”

Section: Eligibility Criteria Information Sources and Search Strategymentioning

confidence: 99%

Relationship between Abnormal Placenta and Obstetric Outcomes: A Meta-Analysis

et al. 2023

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The placenta has several crucial physiological functions that help maintain a normal pregnancy. Although approximately 2–4% of pregnancies are complicated by abnormal placentas, obstetric outcomes remain understudied. This study aimed to determine the outcomes and prevalence of patients with abnormal placentas by conducting a systematic review of 48 studies published between 1974 and 2022. The cumulative prevalence of circumvallate placenta, succenturiate placenta, multilobed placenta, and placenta membranacea were 1.2%, 1.0%, 0.2%, and 0.004%, respectively. Pregnancies with a circumvallate placenta were associated with an increased rate of emergent cesarean delivery, preterm birth (PTB), and placental abruption compared to those without a circumvallate placenta. The succenturiate lobe of the placenta was associated with a higher rate of emergent cesarean delivery, whereas comparative results were observed in terms of PTB, placental abruption, and placenta previa in comparison to those without a succenturiate lobe of the placenta. A comparator study that examined the outcomes of multilobed placentas found that this data is usually unavailable. Patient-level analysis (n = 15) showed high-rates of abortion (40%), placenta accreta spectrum (40%), and a low term delivery rate (13.3%) in women with placenta membranacea. Although the current evidence is insufficient to draw a robust conclusion, abnormal placentas should be recognized as a high-risk factor for adverse outcomes during pregnancy.

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

Cited by 11 publications

References 82 publications

Vasa Previa: A Case Report from Tiom General Medical Hospital Lanny Jaya Regency, Papua-Indonesia

Vasa Previa: A Case Report from Tiom General Medical Hospital Lanny Jaya Regency, Papua-Indonesia

Vasa Previa

Relationship between Abnormal Placenta and Obstetric Outcomes: A Meta-Analysis

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