Affiliation:
1. From the Department of Physiology, Harvard Medical School, Boston, Mass.
Abstract
As a more detailed picture of the pathogenesis of salt and water retention in congestive heart failure evolves, it appears that increased tubular reabsorption of sodium occurs very early in heart disease, with further enhancement of the fluid accumulation as filtration rate decreases later in the disease process. Increase in sympathetic activity in the kidney can be demonstrated before the development of frank failure, and probably is initiated reflexly by decreased baroreceptor activity, a response that occurs in various types of circulatory insufficiency. Blocking the adrenergic nerves of the kidney produces profound diuresis and natriuresis. Evidence is presented that the pressoreceptors may also play an important role in regulating aldosterone secretion. Thus, the change in body fluids seen in congestive heart failure may be part of the normal reflex adjustments maintaining blood pressure.
Publisher
Ovid Technologies (Wolters Kluwer Health)
Subject
Physiology (medical),Cardiology and Cardiovascular Medicine
Cited by
26 articles.
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