With prolonged exposure, heparin can cause structural changes to the adrenal gland, specifically hyperplasia of the zona glomerulosa . Interestingly, while the tissue may grow larger, the cells become functionally suppressed and contain fewer lipid droplets (which are necessary for steroid synthesis).
The primary reason heparin triggers hyperkalemia is through the in the adrenal glands. Heparin‐induced hyperkalemia, can LMWH cause ... - PMC how does heparin cause hyperkalemia
Heparin impairs the production of , a hormone produced by the adrenal cortex (specifically the zona glomerulosa ). Aldosterone is essential for regulating sodium and potassium levels. When its production is blocked, the body loses its primary mechanism for excreting potassium, leading to hyperkalemia. Heparin‐induced hyperkalemia, can LMWH cause
Simply stopping the heparin usually resolves the hyperkalemia within 1–3 days. When its production is blocked, the body loses
The decrease in aldosterone levels leads to hypoaldosteronism (low levels of aldosterone). Without sufficient aldosterone, the kidneys decrease their excretion of potassium, leading to retention. Pathophysiology Breakdown
Heparin decreases the number of angiotensin II receptors on the cells of the zona glomerulosa. Since angiotensin II is a primary stimulant for aldosterone release, the adrenal gland becomes less responsive to signals that would normally trigger hormone production.