The kidney is the main organ of the body for removing water and sodium. When the kidneys are abnormal, water and sodium are trapped in the body and form edema.
Clinically in accordance with the different pathogenesis, the general edema is pided into two types: nephrotic edema and nephritis edema.
1, nephrotic edema: usually occurs in primary glomerulonephritis and other causes of nephrotic syndrome.
The pathogenesis of this edema is mainly due to decreased plasma colloid osmotic pressure: a large amount of urine protein causes hypoproteinemia during kidney disease, which leads to the decrease of plasma colloid osmotic pressure, the increase of capillary fluid filtration, the reduction of fluid recovered from tissues and the formation of edema. Effective blood volume reduction: plasma extravasation to reduce the effective blood volume, reduced secretion of sodium and hormone, increased the reabsorption of sodium in renal tubules, and further increased the retention of heavy water and sodium, resulting in increased edema.
2, nephritis edema: mainly in acute nephritis, or part of the rapid nephritis, chronic nephritis and other glomerular diseases.
And the pathogenesis of this edema due to the emergence of acute nephritis, part of patients with congestive heart failure due to increased blood volume, hypertension and other reasons, increase the retention of water and sodium, increase the capillary hydrostatic pressure, cause the capillary fluid to move excessively to the interstitial space and cause edema.
For edema of nephropathy, patients should pay attention to, in the event of edema, the intake of sodium, potassium and other substances should be reduced, otherwise it will cause very serious consequences, so the patients should treat edema correctly.
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