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Physiological adaptation of maternal plasma volume during pregnancy: a systematic review and meta-analysis

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de Haas, S., Ghossein-Doha, C., van Kuijk, S. M. J., van Drongelen, J., Spaanderman, M. E. A.·2017·Ultrasound in Obstetrics & Gynecology
DOI 10.1002/uog.17360
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Abstract

OBJECTIVE: To describe the physiological pattern of gestational plasma volume adjustments in normal singleton pregnancy and compare this with the pattern in pregnancies complicated by pregnancy-induced hypertension, pre-eclampsia or fetal growth restriction. METHODS: We performed a meta-analysis of the current literature on plasma volume adjustments during physiological and complicated pregnancies. Literature was retrieved from PubMed (NCBI) and EMBASE (Ovid) databases. Included studies reported both reference plasma volume measurements (non-pregnant, prepregnancy or postpartum) and measurements obtained during predetermined gestational ages. Mean differences bet ween the reference and pregnancy plasma volume measurements were calculated for predefined intervals of gestational age using a random-effects model described by DerSimonian and Laird. RESULTS: Thirty studies were included in the meta-analysis with publication dates ranging from 1934 to 2007. Plasma volume increased in the first weeks of pregnancy, with the steepest increase occurring during the second trimester. Plasma volume continued to increase in the third trimester with a pooled maximum increase of 1.13 L (95% CI, 1.07-1.19 L), an increase of 45.6% (95% CI, 43.0-48.1%) in physiological pregnancies compared with the reference value. The plasma volume expansion in gestational hypertensive and growth-restricted pregnancies was 0.80 L (95% CI, 0.59-1.02 L), an increase of 32.3% (95% CI, 23.6-41.1%) in the third trimester, a smaller increase than in physiological pregnancies (P < 0.0001). CONCLUSIONS: During physiological pregnancy, plasma volume increases by, on average, more than 1 L as compared with non-pregnant conditions. In pregnancies complicated by pregnancy-induced hypertension, pre-eclampsia or fetal growth restriction, plasma volume increase in the third trimester is 13.3% lower than in normal pregnancy. Copyright © 2016 ISUOG. Published by John Wiley & Sons Ltd. Adaptación fisiológica del volumen del plasma materno durante el embarazo: una revisi\xF3n sistemática y metaanálisis RESUMEN OBJETIVO: Describir el patrón fisiológico de los cambios en el volumen del plasma gestacional en embarazos normales con feto único y compararlo con el patrón en los embarazos complicados por hipertensión gestacional, preeclampsia o restricción del crecimiento fetal. MÉTODOS: Se realizó un metaanálisis de la literatura actual sobre los cambios en el volumen de plasma durante embarazos complicados y fisiológicos. La literatura se obtuvo de las bases de datos PubMed (NCBI) y EMBASE (Ovid). Los estudios incluidos mencionaban tanto mediciones de referencia del volumen plasmático (no embarazada, antes del embarazo o después del parto) como mediciones tomadas a edades gestacionales predeterminadas. Se calcularon las medias de las diferencias entre las mediciones de referencia y las del embarazo para el volumen plasmático a intervalos predefinidos de la edad gestacional, utilizando un modelo de efectos aleatorios descrito por DerSimonian y Laird. RESULTADOS: En el metaanálisis se incluyeron treinta estudios con fechas de publicación entre 1934 y 2007. El volumen plasmático aumentó en las primeras semanas de embarazo y el mayor incremento se produjo durante el segundo trimestre. El volumen de plasma continuó aumentando en el tercer trimestre con un aumento combinado máximo de 1,13L (IC 95%, 1,7-1,19 L), lo que supone un aumento del 45,6% (IC 95%, 43,0-48,1%) en embarazos fisiológicas en comparación con el valor de referencia. El aumento del volumen plasmático en los embarazos con hipertensión y con crecimiento intrauterino restringido fue de 0,80L (IC 95%, 0,59-1,02 L), lo que supone un aumento del 32,3% (IC 95%, 23,6-41,1%) en el tercer trimestre, y un incremento menor que en los embarazos fisiológicos (P <0,0001). CONCLUSIONES: Durante el embarazo fisiológico el volumen de plasma aumenta, en promedio, más de 1L, en comparación con el de las no embarazadas. En los embarazos complicados por hipertensión gestacional, preeclampsia o restricción del crecimiento fetal, el aumento del volumen plasmático en el tercer trimestre es un 13,3% menor que en el embarazo normal. :meta : ,、。 : meta。PubMed(NCBI)EMBASE(Ovid)。(、)。DerSimonianLaird,。 : Meta30,19342007。,。,1.13 L(95% CI,1.07~1.19 L),,45.6%(95% CI,43.0%~48.1%)。0.80 L(95%CI,0.59~1.02 L),32.3%(95% CI,23.6%~41.1%),(P<0.0001)。 : ,,1 L。、,13.3%。.

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Metadata

Authors
de Haas, S., Ghossein-Doha, C., van Kuijk, S. M. J., van Drongelen, J., & Spaanderman, M. E. A.
Venue
Ultrasound in Obstetrics & Gynecology
Publisher
Wiley
Published
2017-02
Volume
49
Issue
2
Pages
177-187
ISSN
0960-7692 (ISSN-L)
DOI
10.1002/uog.17360
OpenAlex
W2549778034
Cited by
269
References
1
FWCI
3.56
Type
journal article
Language
en
Open access
bronze
Licence

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de Haas, S., Ghossein-Doha, C., van Kuijk, S. M. J., van Drongelen, J., & Spaanderman, M. E. A. (2017). Physiological adaptation of maternal plasma volume during pregnancy: a systematic review and meta-analysis. Ultrasound in Obstetrics & Gynecology. https://doi.org/10.1002/uog.17360

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