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Cited by 84Maternal and fetal healthcarePreterm Birth and ChorioamnionitisPregnancy and preeclampsia studies

Cervical length and risk of antepartum bleeding in women with complete placenta previa

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Ghi, T., Contro, E., Martina, T., Piva, M., Morandi, R., Orsini, L. F., Meriggiola, M. C., Pilu, G. +4 more·2009·Ultrasound in Obstetrics & Gynecology
DOI 10.1002/uog.6301
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Abstract

Objective: To evaluate if cervical length predicts prepartum bleeding and emergency Cesarean section in cases of placenta previa. Methods: Between September 2005 and September 2007, cervical length was measured by transvaginal ultrasound in women with complete placenta previa persisting into the third trimester of pregnancy. A complete follow‐up of pregnancy was obtained in all cases. Results: Overall, 59 women were included in the study group. The mean ± SD gestational age at ultrasound was 30.7 ± 2.7 weeks and the cervical length was 36.9 ± 8.8 mm. Cesarean delivery was performed in all cases, at a mean gestational age of 34.7 ± 2.3 weeks. Twenty‐nine (49.1%) of the women presented prepartum bleeding and 12 (20.3%) required an emergency Cesarean section prior to 34 completed weeks due to massive hemorrhage. Cervical length did not differ significantly between cases with and those without prepartum bleeding (35.3 ± 9.3 mm vs. 38.4 ± 8.2 mm; P = 0.18), but was significantly shorter among patients who underwent emergency Cesarean section < 34 weeks due to massive hemorrhage compared with patients who underwent elective Cesarean section (29.4 ± 5.7 mm vs. 38.8 ± 8.5 mm; P = 0.0006). Conclusions: Transvaginal sonographic cervical length predicts the risk of emergency Cesarean section < 34 weeks in women with complete placenta previa. Copyright © 2009 ISUOG. Published by John Wiley & Sons, Ltd.

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  • Women with a cervical length of less than 31 mm have a 16 times higher risk of emergency caesarean section due to massive haemorrhage (OR 16.4, 95% CI 3.4-75.9).

    “Women with a cervical length of less than 31 mm have a 16 times (OR 16.4, 95% CI 3.4-75.9)higher risk of emergency caesarean section due to massive haemorrhage.57”

    From Placenta Praevia and Placenta Accreta: Diagnosis and Management: Green‐top Guideline No. 27a (2019) · cites this paper as [57]

    The Results report an odds ratio of 16.36 (95% CI, 3.39–75.92) for Cesarean delivery due to massive hemorrhage, matching the claim’s rounded figures. The reported cutoff is cervical length ≤31 mm, not <31 mm, and the outcome is specifically preterm emergency Cesarean section before 34 weeks; the citing sentence omits that timing qualifier. (LLM, conf=0.87)

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  • Cervical length is a predictor of antepartum bleeding and emergency preterm caesarean section in placenta praevia.

    “cohort studies with low risks of confounding bias have shown that cervical length is a predictor of antepartum bleeding and emergency preterm caesarean section in placenta praevia.[57][58][59][60]”

    From Placenta Praevia and Placenta Accreta: Diagnosis and Management: Green‐top Guideline No. 27a (2019) · cites this paper as [57]

    The Results report that shorter cervical length predicted emergency Cesarean section before 34 weeks due to massive hemorrhage in women with complete placenta previa. But cervical length did not differ significantly between women with and without prepartum bleeding (P = 0.18), so the broader claim that it predicts antepartum bleeding is not supported. Page numbers were not provided in our copy. (LLM, conf=0.91)

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Research works printed but not linked: 1

  1. [8]8. Oppenheimer L. Society of Obstetricians and Gynaecologists of Canada. Diagnosis and management of placenta praevia. J Obstet Gynaecol Can 2007; 29: 261-273.

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Authors
Ghi, T., Contro, E., Martina, T., Piva, M., Morandi, R., Orsini, L. F., Meriggiola, M. C., Pilu, G., Morselli‐Labate, A. M., De Aloysio, D., Rizzo, N., & Pelusi, G.
Affiliations
University of Bologna (IT)
Corresponding author
Ghi, T.
ORCID
Venue
Ultrasound in Obstetrics & Gynecology
Publisher
Wiley
Published
2009-01-27
Volume
33
Issue
2
Pages
209-212
ISSN
  • 0960-7692 (ISSN-L)
  • 1469-0705
DOI
10.1002/uog.6301
OpenAlex
W2053738336
Cited by
84
References
12
Citations by year
2026: 6 · 2025: 1 · 2024: 5 · 2023: 8 · 2022: 6 · 2021: 2 · 2020: 5 · 2019: 1 · 2018: 12 · 2017: 7 · 2016: 2 · 2015: 3 · 2014: 3 · 2013: 2 · 2012: 9
FWCI
5.92
Type
journal article
Language
en
Open access
Licence
onlinelibrary.wiley.com/termsAndConditions#vor (vor)
Locations
  • Ultrasound in Obstetrics and Gynecology (publishedVersion)
  • PubMed (publishedVersion)
  • Archivio istituzionale della ricerca (Alma Mater Studiorum Università di Bologna) (submittedVersion)
Topics
  • Health Sciences › Medicine › Pediatrics, Perinatology and Child Health › Maternal and fetal healthcare
  • Health Sciences › Medicine › Epidemiology › Preterm Birth and Chorioamnionitis
  • Health Sciences › Medicine › Obstetrics and Gynecology › Pregnancy and preeclampsia studies
Keywords
cervical length, placenta previa, antepartum hemorrhage, emergency cesarean section, transvaginal ultrasound, third trimester, preterm birth, massive hemorrhage
MeSH terms
Adult, Cesarean Section, Female, Humans, Obstetric Labor, Premature, Placenta Previa, Predictive Value of Tests, Pregnancy, Pregnancy Trimester, Third, Prospective Studies, Uterine Hemorrhage, Cervical Length Measurement

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