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PubMed1989

Folic acid deficiency in intensive care patients: comparison between two regimens of supplementation.

Serum folic acid (SFA) and red blood cell folic acid (RbcFA) levels were determined in 40 patients on the day of admission to our intensive care unit (ICU, D0). 65% of the patients had low SFA (< 3,4 ng/ml) and 27.5% had low RbcFA (< 275 ng/ml)L. Twenty-four hours later (Day 1:D1), both SFA and RbcFA had decreased significantly (respectively 0.49 ng/ml and 21 ng/ml, p < 0.01) in the 40 patients; the magnitude of RbcFA decrease was greater in patients with sepsis than in those without sepsis (p < 0.02). SFA and RbcFA levels were significantly lower in patients with sepsis on D0 and D1. Forty-two other patients with documented hypofolatemia were then randomly allocated to two regimens of FA supplementation. Patients on regimen A had an intravenous injection of 0.5 mg folinic acid daily for ten days whereas patients on regimen B received a single 5 mg intravenous injection of FA on day 1. Both regimens increased significantly SFA and RbcFA levels. But regimen A should be recommended because 1) RbcFA levels were significantly higher than with regimen B (p < 0.05) and 2) the mean increase was higher, particularly in patients with initial sepsis (p < 0.01).

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