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Delta neutrophil index and shock index can stratify risk for the requirement for massive transfusion in patients with primary postpartum hemorrhage in the emergency department

Authors
 Taeyoung Kong  ;  Hye Sun Lee  ;  So Young Jeon  ;  Je Sung You  ;  Jong Wook Lee  ;  Hyun Soo Chung  ;  Sung Phil Chung 
Citation
 PLOS ONE, Vol.16(10) : e0258619, 2021-10 
Journal Title
PLOS ONE
Issue Date
2021-10
Abstract
Background: Postpartum hemorrhage (PPH) constitutes a major risk for maternal mortality and morbidity. Unfortunately, the severity of PPH can be underestimated because it is difficult to accurately measure blood loss by visual estimation. The delta neutrophil index (DNI), which reflects circulating immature granulocytes, is automatically calculated in hematological analyzers. We evaluated the significance of the DNI in predicting hemorrhage severity based on the requirement for massive transfusion (MT) in patients with PPH. Methods: We retrospectively analyzed data from a prospective registry to evaluate the association between the DNI and MT. Moreover, we assessed the predictive ability of the combination of DNI and shock index (SI) for the requirement for MT. MT was defined as a transfusion of ≥10 units of red blood cells within 24 h of PPH. In total, 278 patients were enrolled in this study and 60 required MT. Results: Multivariable logistic regression revealed that the DNI and SI were independent predictors of MT. The optimal cut-off values of ≥3.3% and ≥1.0 for the DNI and SI, respectively, were significantly associated with an increased risk of MT (DNI: positive likelihood ratio [PLR] 3.54, 95% confidence interval [CI] 2.5-5.1 and negative likelihood ratio [NLR] 0.48, 95% CI 0.4-0.7; SI: PLR 3.21, 95% CI 2.4-4.2 and NLR 0.31, 95% CI 0.19-0.49). The optimal cut-off point for predicted probability was calculated for combining the DNI value and SI value with the equation derived from logistic regression analysis. Compared with DNI or SI alone, the combination of DNI and SI significantly improved the specificity, accuracy, and positive likelihood ratio of the MT risk. Conclusion: The DNI and SI can be routinely and easily measured in the ED without additional costs or time and can therefore, be considered suitable parameters for the early risk stratification of patients with primary PPH.
Files in This Item:
T202104540.pdf Download
DOI
10.1371/journal.pone.0258619
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Emergency Medicine (응급의학교실) > 1. Journal Papers
1. College of Medicine (의과대학) > Yonsei Biomedical Research Center (연세의생명연구원) > 1. Journal Papers
Yonsei Authors
Kong, Tae Young(공태영) ORCID logo https://orcid.org/0000-0002-4182-7245
You, Je Sung(유제성) ORCID logo https://orcid.org/0000-0002-2074-6745
Lee, Hye Sun(이혜선) ORCID logo https://orcid.org/0000-0001-6328-6948
Chung, Sung Phil(정성필) ORCID logo https://orcid.org/0000-0002-3074-011X
Chung, Hyun Soo(정현수) ORCID logo https://orcid.org/0000-0001-6110-1495
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/185980
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