Sentence:  In the patients with myocardial <WSD>edemas</WSD> [247, 471] it was shown that, despite a considerable loss of fluid via the kidneys after the intravenous administration of a short-acting and very effective diuretic (furosemide), there was no increase in the blood and plasma viscosities. 
Meaning of the word marked with <WSD> tags:  An excessive accumulation of serum in tissue spaces or a body cavity.