[Metabolic disorders in the acute stage of cardiac infarction]

The level of lactates and pyruvates in arterial blood of 35 patients with myocardial infarction without shock (17-without heart insufficiency and 18-with manifested but in various degrees) is higher as compared with the level of 18 healthy subject and the elevation is better manifested in the patients with cardiac insufficiency. The highest level of lactates and pyruvates is reached in the first 48 hours of the onset of the disease, after which they decrease progressively and in patients without cardiac insufficiency is normalized by the 5-6th day and in those with insufficiency-remains elevated. Slight to moderate correlation exists between the level of lactates and BE and PaCO2. Lacate and pyruvate level reoresents a more sensitive index for the existence of distrubances in the tissue metabolism as compared with the indices of alkaline-acid equilibtrium.