The potential use of thiamine in patients with cardiac insufficiency (original) (raw)

Acta vitaminologica et enzymologica, 1982

Abstract

Incremental doses of vitamin B1 were injected into patients with myocardial and pulmonary insufficiency treated in the post-operative period in the ICU (intensive care unit) after repairment of abdominal aneurysm. Compared to the control situation thiamine in a total dose of 50 mg/Kg induced a rise of blood pressure by at least 20 mmHg and a moderate elevation of central venous pressure by 3 mmHg. Heart rate was not affected and the EEG exhibited arousal effects after B1 treatment. It is suggested that in the failing heart with increased sympathetic tone thiamine acts as a mild peripheral vasodilator followed by a diminished pump outflow impedance and a resultant increase in systolic blood pressure. The redistribution of volume to the low pressure side is associated with a rise in central venous pressure. Effects of B1 on the EEG suggest an arousal reaction probably due to an interaction with a neurotransmitter system such as acethylcholine.

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