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VOLUME 26 , ISSUE 5 ( May, 2022 ) > List of Articles

Original Article

Study of Significance of Serum Lactate Kinetics in Sepsis as Mortality Predictor

Mit Chaudhari, Nagina Agarwal

Keywords : Lactate kinetics, Lactate clearance, Mortality prediction, Sepsis, Serum lactate

Citation Information : Chaudhari M, Agarwal N. Study of Significance of Serum Lactate Kinetics in Sepsis as Mortality Predictor. Indian J Crit Care Med 2022; 26 (5):589-593.

DOI: 10.5005/jp-journals-10071-23935

License: CC BY-NC 4.0

Published Online: 30-04-2022

Copyright Statement:  Copyright © 2022; The Author(s).


Abstract

Introduction: Sepsis is one of the leading causes of death worldwide. Serum lactate is being used in sepsis for diagnostic and prognostic purposes for years now. In this study, we shed light over a novel use of lactate in form of various clearance parameters to determine mortality in septic patients at the 28th day. Materials and method: In our study, 200 patients with sepsis were included using quick sequential organ failure assessment (qSOFA) score and their lactate levels were measured at the time of admission (0 hour) and 24 hours after admission. Lactate clearance parameters (absolute and relative lactate clearance, lactate clearance rate) were calculated. All patients were followed up for a period of 28 days to determine the outcome, and data analysis was done accordingly. Results and conclusion: Our study showed that higher SOFA score, qSOFA score, and serum lactate levels were associated with increased 28th-day mortality. Low absolute, relative lactate clearance and lactate clearance rate were also associated with poor outcomes. The best cutoffs to predict poor outcomes were serum lactate level at 24 hours ≥4 mmol/L and relative lactate clearance ≤40.3% with good sensitivity and specificity.


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