Manifestations of recovery from nephrotic syndrome

Written by Zhou Qi
Nephrology
Updated on February 22, 2025
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In principle, there is no concept of complete recovery for nephrotic syndrome. The condition of nephrotic syndrome can be alleviated and controlled to the greatest extent, but it cannot be completely cured. When the condition is alleviated, the patient's glomerular filtration barrier is repaired, resulting in a reduction in proteinuria and a decrease in urinary foam clinically. Once the patient's urinary protein decreases, the plasma protein concentration will gradually increase. Thus, water moves back from outside to inside the blood vessels, leading to a reduction in edema. These clinical signs all indicate an improvement in the condition of nephrotic syndrome. Of course, to assess the condition, it is still necessary to rely on the patient undergoing a 24-hour quantitative urine protein test.

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Written by Zhang Hui
Nephrology
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What tests are conducted for nephrotic syndrome?

Patients with nephrotic syndrome need to complete routine urine tests, 24-hour urine protein quantification, liver and kidney function tests, routine blood tests, electrolyte panels, blood glucose tests, and lipid profiles. Additionally, it is important to determine the cause of nephrotic syndrome, excluding the possibility of nephrotic syndrome caused by immune system diseases, including tumors, vasculitis, lupus, and other diseases. These tests include rheumatoid immune panels, antinuclear antibody spectrum, anti-GBM antibodies, ANCA panel, and immunoglobulins. Moreover, these patients should undergo kidney ultrasound, tumor marker tests, and thyroid function tests.

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Written by Wu Ji
Nephrology
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Criteria for the diagnosis of nephrotic syndrome

The diagnostic criteria for nephrotic syndrome include massive proteinuria, with urinary protein greater than 3.5 grams/day, hypoalbuminemia, with plasma albumin less than 30 grams/liter, severe edema, and hyperlipidemia, which includes significant increases in plasma cholesterol and triglycerides. The first two criteria are essential for the diagnosis of nephrotic syndrome, while the latter two are secondary. Clinically, if the two necessary criteria are met, the diagnosis of nephrotic syndrome is established. Patients with nephrotic syndrome should undergo a renal biopsy to determine the pathological type and guide clinical treatment.

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Written by Wu Ji
Nephrology
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What is nephrotic syndrome?

Nephrotic syndrome is a common manifestation of glomerular disease, caused by a variety of etiologies, with large differences in treatment response and prognosis. The pathological causes of nephrotic syndrome are diverse, with the most common types being minimal change disease, focal segmental glomerulosclerosis, mesangial proliferative nephritis, membranous nephropathy, and membranoproliferative glomerulonephritis. Nephrotic syndrome can be classified into primary and secondary types based on its cause. The diagnosis of primary nephrotic syndrome mainly depends on the exclusion of secondary nephrotic syndrome. Common causes of secondary nephrotic syndrome include diabetic nephropathy, lupus nephritis, renal amyloidosis, drug-induced nephropathy, and renal tumors.

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Written by Zhou Qi
Nephrology
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Precursors of relapse of nephrotic syndrome

Nephrotic syndrome is characterized by patients having 24-hour urinary protein quantification exceeding 3.5g and blood plasma albumin levels lower than 30g/L. This condition can be long-lasting. Some patients, after treatment, can have their condition effectively controlled, but there is still a possibility of relapse. Such relapses often occur after the patient has been overworked or has caught a cold, but there are also some patients who do not have such triggers. When the condition relapses, the urinary protein level increases again, which might lead to an increase in urine foam. Patients might experience significant swelling in the lower limbs and face among other areas, suggesting a relapse of nephrotic syndrome, and it is important to go to the hospital for relevant tests promptly.

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Written by Zhang Hui
Nephrology
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How should you eat with nephrotic syndrome?

Nephrotic syndrome is characterized by urine protein greater than 3.5 grams, serum albumin less than 30, the presence of edema, and hyperlipidemia. Patients matching these criteria can be diagnosed with nephrotic syndrome. From its diagnosis, we can see that such patients have a high amount of urine protein and relatively low blood protein. For these patients, it is necessary to control their protein intake, generally suitable at 0.6-0.8 grams per kilogram of body weight per day. Due to hypoalbuminemia, as the liver synthesizes protein, it also leads to an increase in blood lipids. Therefore, patients with nephrotic syndrome need to follow a low-fat diet to avoid further elevation of blood lipids. Additionally, as patients with nephrotic syndrome generally have edema, it is necessary to restrict sodium intake to prevent sodium and water retention, further aggravating the edema.