Basil-Kway V, Castillo-Reyther R, Domínguez-Salgado LA, Espinosa-Tanguma R, Medina Ú, Gordillo-Moscoso A. Early prognostic capacity of serum lactate for severe postpartum hemorrhage.
Int J Gynaecol Obstet 2020;
153:483-488. [PMID:
33119891 DOI:
10.1002/ijgo.13446]
[Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Revised: 07/23/2020] [Accepted: 10/27/2020] [Indexed: 11/11/2022]
Abstract
OBJECTIVE
To evaluate whether the concentration of serum lactate during the diagnosis of postpartum hemorrhage (bleeding ≥500 mL during labor or ≥1000 mL during cesarean delivery) predicts severe hemorrhage (SPPH; blood loss ≥1500 mL at end of labor or in the following 24 h).
METHODS
A prospective cohort pilot study was conducted of women with a vaginal or cesarean delivery from February 2018 to March 2019 who presented with bleeding ≥500 mL measured by the gravimetric method in a reference hospital in San Luis Potosi, Mexico. Venous blood samples were taken for analysis of serum lactate. A receiver operating characteristic curve determined the serum lactate threshold value for SPPH and χ2 test assessed the difference in serum lactate elevation between SPPH and non-SPPH groups. Lastly, the prognostic capacity between the thresholds was compared.
RESULTS
SPPH developed in 43.33% of the 30 women in the study group. The best prognostic threshold was 2.68 mmol/L of serum lactate (odds ratio [OR] 17.88, 95% confidence interval [CI] 2.7-16.8, P < 0.001); sensitivity was 0.85 (95% CI 0.55-0.98); specificity was 0.76 (95% CI 0.50-0.93).
CONCLUSION
Serum lactate may be a useful prognostic marker for SPPH, more studies are needed to validate these findings.
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