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The increasing role of a retained placenta in postpartum blood loss: a cohort study

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@article{22ab282bcbcf4d71ab9cc9371714ab97,
title = "The increasing role of a retained placenta in postpartum blood loss: a cohort study",
abstract = "PURPOSE: To describe the association between quantity of blood loss, duration of the third stage of labour, retained placenta and other risk factors, and to describe the role of a retained placenta depending on the cutoff used to define postpartum haemorrhage.METHODS: Cohort study of all vaginal deliveries at two Danish maternity units between 1 January 2009 and 31 December 2013 (n = 43,357), univariate and multivariate linear regression statistical analyses.RESULTS: A retained placenta was shown to be a strong predictor of quantity of blood loss and duration of the third stage of labour a weak predictor of quantity of blood loss. The predictive power of the third stage of labour was further reduced in the multivariate analysis when including retained placenta in the model. There was an increase in the role of a retained placenta depending on the cutoff used to define postpartum haemorrhage, increasing from 12{\%} in cases of blood loss ≥ 500 ml to 53{\%} in cases of blood loss ≥ 2000 ml CONCLUSION: The predictive power of duration of the third stage of labour in regard to postpartum blood loss was diminished by the influence of a retained placenta. A retained placenta was, furthermore, present in the majority of most severe cases.",
author = "Edwards, {Hellen McKinnon} and Svare, {Jens Anton} and Wikkels{\o}, {Anne Juul} and Jeannet Lauenborg and Jens Langhoff-Roos",
year = "2019",
month = "3",
doi = "10.1007/s00404-019-05066-3",
language = "English",
volume = "299",
pages = "733--740",
journal = "Archives of Gynecology and Obstetrics",
issn = "0932-0067",
publisher = "Springer",
number = "3",

}

RIS

TY - JOUR

T1 - The increasing role of a retained placenta in postpartum blood loss

T2 - a cohort study

AU - Edwards, Hellen McKinnon

AU - Svare, Jens Anton

AU - Wikkelsø, Anne Juul

AU - Lauenborg, Jeannet

AU - Langhoff-Roos, Jens

PY - 2019/3

Y1 - 2019/3

N2 - PURPOSE: To describe the association between quantity of blood loss, duration of the third stage of labour, retained placenta and other risk factors, and to describe the role of a retained placenta depending on the cutoff used to define postpartum haemorrhage.METHODS: Cohort study of all vaginal deliveries at two Danish maternity units between 1 January 2009 and 31 December 2013 (n = 43,357), univariate and multivariate linear regression statistical analyses.RESULTS: A retained placenta was shown to be a strong predictor of quantity of blood loss and duration of the third stage of labour a weak predictor of quantity of blood loss. The predictive power of the third stage of labour was further reduced in the multivariate analysis when including retained placenta in the model. There was an increase in the role of a retained placenta depending on the cutoff used to define postpartum haemorrhage, increasing from 12% in cases of blood loss ≥ 500 ml to 53% in cases of blood loss ≥ 2000 ml CONCLUSION: The predictive power of duration of the third stage of labour in regard to postpartum blood loss was diminished by the influence of a retained placenta. A retained placenta was, furthermore, present in the majority of most severe cases.

AB - PURPOSE: To describe the association between quantity of blood loss, duration of the third stage of labour, retained placenta and other risk factors, and to describe the role of a retained placenta depending on the cutoff used to define postpartum haemorrhage.METHODS: Cohort study of all vaginal deliveries at two Danish maternity units between 1 January 2009 and 31 December 2013 (n = 43,357), univariate and multivariate linear regression statistical analyses.RESULTS: A retained placenta was shown to be a strong predictor of quantity of blood loss and duration of the third stage of labour a weak predictor of quantity of blood loss. The predictive power of the third stage of labour was further reduced in the multivariate analysis when including retained placenta in the model. There was an increase in the role of a retained placenta depending on the cutoff used to define postpartum haemorrhage, increasing from 12% in cases of blood loss ≥ 500 ml to 53% in cases of blood loss ≥ 2000 ml CONCLUSION: The predictive power of duration of the third stage of labour in regard to postpartum blood loss was diminished by the influence of a retained placenta. A retained placenta was, furthermore, present in the majority of most severe cases.

U2 - 10.1007/s00404-019-05066-3

DO - 10.1007/s00404-019-05066-3

M3 - Journal article

VL - 299

SP - 733

EP - 740

JO - Archives of Gynecology and Obstetrics

JF - Archives of Gynecology and Obstetrics

SN - 0932-0067

IS - 3

ER -

ID: 58013525