Characteristics of renal edema

Renal edema - excessive accumulation of fluid in the intercellularthe space of various organs and tissues, as a result of impaired renal function. Despite the general term, they can have different mechanisms of development, and, accordingly, they lead to a variety of diseases.

  • hyponongic edema - associated with a decreasethe amount of total protein in the blood, as a result of its loss with urine on the background of various kidney diseases: glomerulonephritis. acute pyelonephritis. poisoning with fungi ... As a result, water "leaves" in the tissue where the protein is still abundant. This type of renal edema differs by a more even distribution of fluid. And the fastest water "settles" in the loose fatty tissue of the facial area.
  • decreased urine filtering in the kidney:
    • terminal stage of chronic renal failure;
    • increased aldosterone production as a result ofactivation of the renin-angiotensin-aldosterone system, which occurs with a decrease in blood flow in the kidney: anomalies in the development of renal vessels. acquired stenosis of the renal artery, thrombosis or embolism of the PA, narrowing of the PA in nephroptosis. various diseases accompanied by sclerosis of the renal parenchyma (chronic pyelonephritis, chronic glomerulonephritis, hydronephrosis, various types of nephropathies), compression of PA by retroperitoneal tumors ...

Diagnosis of renal edema should be based primarily on determining the mechanism of "delaying" the fluid and establishing the disease that triggered the pathological mechanism, and may include:

  • Laboratory diagnostics. protein in the urine. protein in the blood, K NaCl content in the blood, determination of the levels of aldosterone and antidiuretic hormone;
  • Ultrasound and X-ray methods - for the purpose of revealing the pathology of the kidneys;
  • Dopplerography - for the purpose of revealing the disturbance of blood flow in the kidney and vessels;
  • Nephroscintigraphy - to determine the functional capacity of the kidneys;
  • CT scan.

It is important to exclude edema of a different origin: heart disease, thyroid gland, allergic processes and intoxications, brain diseases, tumors that produce aldosterone and vasopressin.

As you now understand, treatment should beis aimed at eliminating the etiologic factor. Therefore, more information about the methods of therapy you can get on the pages describing the corresponding diseases of the kidneys, which can lead to the development of renal edema.