Estimated blood loss in pregnant women with cardiac disease compared with low risk women: a restrospective cohort study

Hsu Phern Chong; James Hodson; Tara J Selman; Lucy E Hudsmith; Peter J Thompson; Rachel Katherine Morris; Sara Thorne

doi:10.1186/s12884-019-2447-8

Estimated blood loss in pregnant women with cardiac disease compared with low risk women: a restrospective cohort study

Hsu Phern Chong, James Hodson, Tara J Selman, Lucy E Hudsmith, Peter J Thompson, Rachel Katherine Morris, Sara Thorne

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Abstract

BACKGROUND: Women with cardiac disease are thought to be at increased risk of post-partum haemorrhage. We sought to assess the estimated blood loss (EBL) in our cohort of women with and without cardiac disease (CD) in a quaternary hospital in the UK. Our population consisted of both congenital and acquired CD; and low risk women who delivered in our unit between 01/01/2012-30/09/2016.

METHODS: Data were collected using computerised hospital records. CD was classified according to the modified WHO classification (mWHO). The primary outcome measure was estimated blood loss (mL).

RESULTS: A total of 5413 women with a singleton fetus in the cephalic presentation delivered during the study period (159 women with CD and 5254 controls). In the CD group, active management of the third stage of labour was consistent with that used in low risk women in 98% (152/155) of cases. Multivariable analyses demonstrated no significant difference in EBL between women with CD vs controls. The adjusted average blood losses were 247.2 ml, 241.8 ml and 295.9 ml in the control group, mWHO 1-2 and 3-4, respectively (p = 0.165).

CONCLUSIONS: Women with CD have comparable EBL to low risk women when management of the active third stage of labour is the same.

Original language	English
Article number	325
Journal	BMC pregnancy and childbirth
Volume	19
Issue number	1
DOIs	https://doi.org/10.1186/s12884-019-2447-8
Publication status	Published - 4 Sept 2019

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@article{669ec5bff7234fa3ab8289b5d9e13935,

title = "Estimated blood loss in pregnant women with cardiac disease compared with low risk women: a restrospective cohort study",

abstract = "BACKGROUND: Women with cardiac disease are thought to be at increased risk of post-partum haemorrhage. We sought to assess the estimated blood loss (EBL) in our cohort of women with and without cardiac disease (CD) in a quaternary hospital in the UK. Our population consisted of both congenital and acquired CD; and low risk women who delivered in our unit between 01/01/2012-30/09/2016.METHODS: Data were collected using computerised hospital records. CD was classified according to the modified WHO classification (mWHO). The primary outcome measure was estimated blood loss (mL).RESULTS: A total of 5413 women with a singleton fetus in the cephalic presentation delivered during the study period (159 women with CD and 5254 controls). In the CD group, active management of the third stage of labour was consistent with that used in low risk women in 98% (152/155) of cases. Multivariable analyses demonstrated no significant difference in EBL between women with CD vs controls. The adjusted average blood losses were 247.2 ml, 241.8 ml and 295.9 ml in the control group, mWHO 1-2 and 3-4, respectively (p = 0.165).CONCLUSIONS: Women with CD have comparable EBL to low risk women when management of the active third stage of labour is the same.",

author = "Chong, {Hsu Phern} and James Hodson and Selman, {Tara J} and Hudsmith, {Lucy E} and Thompson, {Peter J} and Morris, {Rachel Katherine} and Sara Thorne",

year = "2019",

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doi = "10.1186/s12884-019-2447-8",

language = "English",

volume = "19",

journal = "BMC pregnancy and childbirth",

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TY - JOUR

T1 - Estimated blood loss in pregnant women with cardiac disease compared with low risk women

T2 - a restrospective cohort study

AU - Chong, Hsu Phern

AU - Hodson, James

AU - Selman, Tara J

AU - Hudsmith, Lucy E

AU - Thompson, Peter J

AU - Morris, Rachel Katherine

AU - Thorne, Sara

PY - 2019/9/4

Y1 - 2019/9/4

N2 - BACKGROUND: Women with cardiac disease are thought to be at increased risk of post-partum haemorrhage. We sought to assess the estimated blood loss (EBL) in our cohort of women with and without cardiac disease (CD) in a quaternary hospital in the UK. Our population consisted of both congenital and acquired CD; and low risk women who delivered in our unit between 01/01/2012-30/09/2016.METHODS: Data were collected using computerised hospital records. CD was classified according to the modified WHO classification (mWHO). The primary outcome measure was estimated blood loss (mL).RESULTS: A total of 5413 women with a singleton fetus in the cephalic presentation delivered during the study period (159 women with CD and 5254 controls). In the CD group, active management of the third stage of labour was consistent with that used in low risk women in 98% (152/155) of cases. Multivariable analyses demonstrated no significant difference in EBL between women with CD vs controls. The adjusted average blood losses were 247.2 ml, 241.8 ml and 295.9 ml in the control group, mWHO 1-2 and 3-4, respectively (p = 0.165).CONCLUSIONS: Women with CD have comparable EBL to low risk women when management of the active third stage of labour is the same.

AB - BACKGROUND: Women with cardiac disease are thought to be at increased risk of post-partum haemorrhage. We sought to assess the estimated blood loss (EBL) in our cohort of women with and without cardiac disease (CD) in a quaternary hospital in the UK. Our population consisted of both congenital and acquired CD; and low risk women who delivered in our unit between 01/01/2012-30/09/2016.METHODS: Data were collected using computerised hospital records. CD was classified according to the modified WHO classification (mWHO). The primary outcome measure was estimated blood loss (mL).RESULTS: A total of 5413 women with a singleton fetus in the cephalic presentation delivered during the study period (159 women with CD and 5254 controls). In the CD group, active management of the third stage of labour was consistent with that used in low risk women in 98% (152/155) of cases. Multivariable analyses demonstrated no significant difference in EBL between women with CD vs controls. The adjusted average blood losses were 247.2 ml, 241.8 ml and 295.9 ml in the control group, mWHO 1-2 and 3-4, respectively (p = 0.165).CONCLUSIONS: Women with CD have comparable EBL to low risk women when management of the active third stage of labour is the same.

U2 - 10.1186/s12884-019-2447-8

DO - 10.1186/s12884-019-2447-8

M3 - Article

C2 - 31484509

SN - 1471-2393

VL - 19

JO - BMC pregnancy and childbirth

JF - BMC pregnancy and childbirth

IS - 1

M1 - 325

ER -

Estimated blood loss in pregnant women with cardiac disease compared with low risk women: a restrospective cohort study

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