Hospital practice (1995) · 2024
The use of vitamin K for coagulopathy in critically ill children.
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Smith Christina J, Valencia Ryan, Sierra Caroline M, Lopez Merrick
Аннотация
OBJECTIVES: Coagulopathy is associated with increased mortality in children in the intensive care unit (ICU). Recommended management of vitamin K-deficient coagulopathy is vitamin K administration. The goal of this study was to evaluate vitamin K administration for coagulopathy in critically ill children and determine a relationship between vitamin K dose and change in prothrombin time (PT) and international normalized ratio (INR).
METHODS: This retrospective cohort study reviewed electronic medical records of patients ≤17 years who received vitamin K for acute coagulopathy in the pediatric ICU from January 2013 to January 2021. Patients receiving vitamin K antagonists were excluded. Effectiveness data included change in PT/INR after vitamin K administration. Safety data included incidence of hypersensitivity or anaphylaxis.
RESULTS: A total of 310 patients (median age 6.8 years, range 22 days-17.7 years) received vitamin K. A median of three doses (range 1-8) and 0.14 mg/kg per dose (range 0.09-0.22 mg/kg) were given, most frequently intravenously (892/949, 94%). Most patients (304/310, 98%) had at least one risk factor for vitamin K deficiency. Mean PT/INR was 21.5/2.1 prior to vitamin K administration, which decreased by 4.4 (SD = 9.0, 95% CI 16.011 to 18.015, p < 0.001) and 0.5 (SD = 1.0, 95% CI 1.490 to 1.705, p < 0.001) to means of 17.0 and 1.6, respectively, after the first vitamin K dose. No linear relationship was found between vitamin K dose and change in PT/INR. No hypersensitivity or anaphylaxis occurred following vitamin K administration; 27% (84/310) of patients died.
CONCLUSIONS: Administration of vitamin K is effective and safe for the management of vitamin K-deficient coagulopathy in critically ill pediatric patients. Further study is needed to determine a relationship between vitamin K dose and change in PT/INR.
METHODS: This retrospective cohort study reviewed electronic medical records of patients ≤17 years who received vitamin K for acute coagulopathy in the pediatric ICU from January 2013 to January 2021. Patients receiving vitamin K antagonists were excluded. Effectiveness data included change in PT/INR after vitamin K administration. Safety data included incidence of hypersensitivity or anaphylaxis.
RESULTS: A total of 310 patients (median age 6.8 years, range 22 days-17.7 years) received vitamin K. A median of three doses (range 1-8) and 0.14 mg/kg per dose (range 0.09-0.22 mg/kg) were given, most frequently intravenously (892/949, 94%). Most patients (304/310, 98%) had at least one risk factor for vitamin K deficiency. Mean PT/INR was 21.5/2.1 prior to vitamin K administration, which decreased by 4.4 (SD = 9.0, 95% CI 16.011 to 18.015, p < 0.001) and 0.5 (SD = 1.0, 95% CI 1.490 to 1.705, p < 0.001) to means of 17.0 and 1.6, respectively, after the first vitamin K dose. No linear relationship was found between vitamin K dose and change in PT/INR. No hypersensitivity or anaphylaxis occurred following vitamin K administration; 27% (84/310) of patients died.
CONCLUSIONS: Administration of vitamin K is effective and safe for the management of vitamin K-deficient coagulopathy in critically ill pediatric patients. Further study is needed to determine a relationship between vitamin K dose and change in PT/INR.