Principles of Acute Nephritis Treatment

Written by Zhou Qi

Nephrology

Updated on September 17, 2024

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The treatment of acute nephritis mainly involves managing the complications of acute nephritis, because acute nephritis itself can potentially heal automatically. The inflammatory reaction in the glomeruli can naturally subside, and proteinuria can decrease, kidney function can recover. However, acute nephritis may cause some complications that could be life-threatening to the patient. Therefore, treatment should focus on these complications to help the patient overcome difficulties, and then wait for the acute nephritis to heal automatically. Common complications mainly include heart failure, high blood pressure, pulmonary infections, etc. Thus, if a patient experiences heart failure, diuretics or even dialysis may be needed, and if an infection occurs, a full course of antibiotics is necessary for anti-inflammatory treatment.

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Written by Zhou Qi

Nephrology

1min 2sec

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Acute nephritis has the following characteristics:

Acute nephritis has the following characteristics: First, patients with acute nephritis often have a history of a precursor upper respiratory tract infection. After catching a cold, patients may develop hematuria, proteinuria, or anuria. Second, patients with acute nephritis will experience a decrease in complement C3 in the blood. After recovery from acute nephritis, complement C3 can restore itself. Third, acute nephritis is self-limiting; generally, the patient's condition will gradually improve over three to four weeks, and recovery can be complete after eight weeks. However, a very small number of patients might experience prolonged illness, evolving into chronic nephritis. Fourth, the pathological characteristic of acute nephritis is diffuse proliferation of capillary endothelial cells, which is a manifestation of pathological damage to the glomeruli.

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Written by Hu Lin

Nephrology

1min 12sec

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Acute nephritis pathological characteristics

The changes in acute nephritis are characterized by diffuse intracapillary proliferative glomerulonephritis, and the main structures in the kidney are the glomeruli, renal tubules, and renal interstitium. Therefore, pathological examination can be divided into light microscopy, immunofluorescence, and electron microscopy examinations. Under light microscopy, the pathological changes in acute nephritis mainly include proliferation of mesangial and endothelial cells in the glomeruli. In the acute phase, there is significant infiltration of neutrophils and mononuclear cells. Masson's trichrome staining can reveal subepithelial immune complex deposits, and there is also edema and infiltration of inflammatory cells in the interstitium; Immunofluorescence examination shows diffuse coarse granular deposits of immune complexes along the capillary walls and in the mesangial areas, mainly composed of IgG and C3; Under electron microscopy examination, there are hump-like electron-dense deposits beneath the epithelial cells.

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Written by Li Liu Sheng

Nephrology

1min 26sec

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How to treat acute nephritis?

Acute nephritis is commonly seen in children and is a frequent type of glomerular disease in this group. Typically, one to three weeks prior to the onset, there often is a history of upper respiratory tract infection or skin infection. Subsequently, within one to three weeks, patients may experience gross hematuria and eyelid edema. In severe cases, elevated blood pressure and renal dysfunction may occur. Currently, there are no especially effective treatments for acute nephritis. However, if diagnosed properly and treated timely, the cure rate for acute nephritis is very high. Specifically, during the acute phase of acute nephritis, patients should rest in bed, follow a light diet, and adjust water intake based on urine output. Additionally, if patients with acute nephritis also have a respiratory infection, antibiotics should be administered, generally with penicillin as the first choice. Of course, if patients with acute nephritis have significant edema or markedly elevated blood pressure, it is appropriate to use diuretics and antihypertensive medications to avoid complications like hypertensive encephalopathy and heart failure. If some patients with acute nephritis also develop acute renal failure, timely dialysis treatment should be administered to improve the prognosis of acute nephritis and enhance the effectiveness of treatment.

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Written by Zhou Qi

Nephrology

41sec

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post-acute nephritis sequelae

Acute nephritis is a self-limiting disease, and most patients can fully recover, so the vast majority of patients generally start to show improvement in routine urine tests three to four weeks after onset, with normal kidney function and resolution of edema, resulting in few, if any, sequelae. Of course, a small number of patients may experience prolonged unhealed conditions that can progress to chronic nephritis. These patients may then develop complications, including hypertension and renal anemia, which are long-term potential issues. However, the vast majority of patients with acute nephritis do not experience complications or sequelae.

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Written by Zhou Qi

Nephrology

58sec

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Can people with acute nephritis eat beef?

In the acute phase of nephritis, patients are generally required to have a light diet and minimize their protein intake, with their protein intake level being about 80% of that of a normal person. They should primarily consume animal-based proteins, which should account for more than 50% of their intake. This principle is called a high-quality, low-protein diet. Therefore, overall, patients with acute nephritis can eat beef, as it is considered a high-quality protein. However, the amount ingested needs to be limited. The intake of beef should be calculated based on the patient's body weight, with every 100 grams of beef containing 20 grams of protein. The total daily protein intake for patients should be 0.6 to 0.8 grams per kilogram of body weight, including both animal and plant proteins. Patients can use the aforementioned data to calculate how much beef they can eat.