Antecedents of red cell transfusion in a large contemporary obstetric cohort
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Siobhan Enright
Abstract
Background
Hemorrhage is a critical contributor to maternal morbidity but estimation of blood loss at delivery is frequently inaccurate. Due to this inaccuracy we sought to examine blood transfusion as a surrogate marker for morbidity in a large non-population based consecutive cohort.
Methods
A retrospective analysis of prospectively gathered data was carried out at two university institutions serving a heterogeneous urban obstetric population from January to December 2016. Data were analyzed to determine whether individual characteristics were associated with perinatal transfusion. Hematological indices and requirement for other blood products were also characterized.
Results
A total of 16,581 deliveries were recorded during the study and 1.7% (289/16,581) of the cohort required red cell transfusion. Those who received transfusion were more likely to be nulliparous, and to deliver <37 weeks’ or >42 weeks’ gestation. They were also more likely to have a macrosomic infant (birthweight >4 kg) and to have had a multiple pregnancy. Characteristics not associated with risk of transfusion included obesity [18% (52/289) vs. 15% (2445/16,292); P=0.18], and maternal age ≥35 years [28% (82/289) vs. 33% (5537/16,292); P=0.05]. Additional blood products were necessary in a small number of patients who received red cells.
Conclusion
The rate of transfusion in a contemporary Irish cohort has risen compared with previous data. Several variables associated with transfusion are consistent with older studies but importantly; maternal obesity and advanced maternal age are not associated with transfusion. These data may encourage the investment of resources in a population previously considered low-risk and, following future studies, to improve strategies aimed at limiting blood transfusion.
Author contributions: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.
Research funding: None declared.
Employment or leadership: None declared.
Honorarium: None declared.
Competing interests: The funding organization(s) played no role in the study design; in the collection, analysis, and interpretation of data; in the writing of the report; or in the decision to submit the report for publication.
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©2019 Walter de Gruyter GmbH, Berlin/Boston
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Artikel in diesem Heft
- Frontmatter
- Editorial
- Ultrasound Doppler waveform assessment: the story continues
- Review
- Association between increased antenatal vaginal pH and preterm birth rate: a systematic review
- Mini Review
- Update on uterine tachysystole
- Research Articles – Obstetrics
- First trimester prediction of gestational diabetes mellitus using plasma biomarkers: a case-control study
- Emergency peripartal hysterectomy – a single-center analysis of the last 13 years at a tertiary perinatal care unit
- Efficacy and safety of misoprostol vaginal insert vs. oral misoprostol for induction of labor
- Vitamin A and β-carotene in pregnant and breastfeeding post-bariatric women in an urban population
- Effect of dual tocolysis with fenoterol and atosiban in human myometrium
- Antecedents of red cell transfusion in a large contemporary obstetric cohort
- Effect of n-3 long-chain polyunsaturated fatty acids supplementation in healthy mothers on DHA and EPA profiles in maternal and umbilical blood: a randomized controlled trial
- Research Articles – Fetus
- Effect of psychotropic drugs on fetal behavior in the third trimester of pregnancy
- Prognostic value of the aortic isthmus Doppler assessment on late onset fetal growth restriction
- Doppler evaluation of the fetal pulmonary artery pressure
- Mechanisms of death in structurally normal stillbirths
- The diagnostic value of a detailed first trimester anomaly scan in fetuses with increased nuchal translucency thickness
- Research Articles – Newborn
- Small for gestational age and extremely low birth weight infant outcomes
- Does heart rate variability improve prediction of failed extubation in preterm infants?
