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Effect of Thiamine Administration on Lactate Clearance and Mortality in Patients With Septic Shock*

Woolum, Jordan A., PharmD1; Abner, Erin L., PhD, MPH2; Kelly, Andrew, MAS, MS3; Thompson Bastin, Melissa L., PharmD, BCPS1,4; Morris, Peter E., MD5; Flannery, Alexander H., PharmD, BCCCP, BCPS1,4

doi: 10.1097/CCM.0000000000003311
Clinical Investigations

Objectives: Mounting evidence has shown that critically ill patients are commonly thiamine deficient. We sought to test the hypothesis that critically ill patients with septic shock exposed to thiamine would demonstrate improved lactate clearance and more favorable clinical outcomes compared with those not receiving thiamine.

Design: Retrospective, single-center, matched cohort study.

Setting: Tertiary care academic medical center.

Patients: Adult patients admitted with an International Classification of Diseases, 9th Edition, or International Classification of Diseases, 10th Edition, diagnosis code of septic shock to either the medicine or surgery ICU.

Interventions: None.

Measurements and Main Results: Patients who received IV thiamine supplementation within 24 hours of hospital admission were identified and compared with a matched cohort of patients not receiving thiamine. The primary objective was to determine if thiamine administration was associated with a reduced time to lactate clearance in septic shock. Secondary outcomes included 28-day mortality, acute kidney injury, and need for renal replacement therapy, and vasopressor and mechanical ventilation-free days. Two-thousand two-hundred seventy-two patients were screened, of whom 1,049 were eligible. The study consisted of 123 thiamine-treated patients matched with 246 patients who did not receive thiamine. Based on the Fine-Gray survival model, treatment with thiamine was associated with an improved likelihood of lactate clearance (subdistribution hazard ratio, 1.307; 95% CI, 1.002–1.704). Thiamine administration was also associated with a reduction in 28-day mortality (hazard ratio, 0.666; 95% CI, 0.490–0.905). There were no differences in any secondary outcomes.

Conclusions: Thiamine administration within 24 hours of admission in patients presenting with septic shock was associated with improved lactate clearance and a reduction in 28-day mortality compared with matched controls.

1Department of Pharmacy Services, University of Kentucky HealthCare, Lexington, KY.

2University of Kentucky College of Public Health, Lexington, KY.

3Center for Health Services Research, University of Kentucky HealthCare, Lexington, KY.

4Department of Pharmacy Practice and Science, University of Kentucky College of Pharmacy, Lexington, KY.

5Division of Pulmonary, Critical Care, and Sleep Medicine, University of Kentucky College of Medicine, Lexington, KY.

*See also p. 1869.

This work was performed at University of Kentucky HealthCare.

Supplemental digital content is available for this article. Direct URL citations appear in the printed text and are provided in the HTML and PDF versions of this article on the journal’s website (http://journals.lww.com/ccmjournal).

Drs. Bastin and Flannery disclosed off-label product use of thiamine supplementation in septic shock. Dr. Flannery received funding from Nova Biomedical (speaking fees). The remaining authors have disclosed that they do not have any potential conflicts of interest.

For information regarding this article, E-mail: alex.flannery@uky.edu

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