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Nephrotic syndrome
Is nephrotic syndrome prone to recurrence?
Nephrotic syndrome is characterized by more than 3.5 grams of proteinuria in 24 hours and a serum albumin concentration lower than 30 grams per liter. Treatment of this disease should be aimed at the cause, with most patients suffering from primary nephrotic syndrome related to immune dysfunction, therefore often requiring treatment with steroids. Indeed, some patients easily experience relapses; after a period of steroid treatment, proteinuria may decrease or even turn negative. However, upon cessation of the medication or during occurrences like a cold, some patients may suffer from relapses. Not all patients respond this way, as some are dependent on steroids.
Is nephrotic syndrome contagious?
So, nephrotic syndrome is a general term for a group of clinical symptoms, a state of disease, and is not essentially an independent disease. Thus, this problem is not infectious. This disease describes the damage to the kidneys due to some reason, leading to the disruption of the integrity of the glomerular filtration barrier, resulting in the patient developing a significant amount of urinary protein. The disease itself is not contagious. However, there are very few cases of nephrotic syndrome that might be caused by hepatitis B virus infecting the kidneys. In such cases, the hepatitis B virus may have a certain level of contagiousness, but even so, it does not imply that nephrotic syndrome itself is contagious. In other words, even if such patients transmit hepatitis B to others, it does not necessarily mean those others will exhibit kidney damage.
Can nephrotic syndrome be clinically cured?
Nephrotic syndrome, a disease that clinically cannot be completely cured, is a chronic illness with no concept of cure. However, with appropriate treatment plans, many patients can achieve effective relief. There are two criteria for judging treatment effectiveness: first, the patient's 24-hour urinary protein quantification is controlled below 0.5 grams, and even can be controlled below 0.3 grams. Second, the patient's 24-hour urinary protein quantification is reduced by more than half compared to the baseline value. Both scenarios indicate effective treatment, but achieving a complete cure is difficult.
Is nephrotic syndrome hereditary?
Nephrotic syndrome is generally not hereditary. It refers to a group of clinical symptoms and manifestations. The fundamental issue in patients is the damage to the glomerular capillaries, which leads to significant proteinuria, subsequently causing edema, hyperlipidemia, and hypoalbuminemia in the plasma. The causes of this disease are classified into primary and secondary types. Primary nephrotic syndrome is related to immune system dysfunction and may involve multiple genes; therefore, the disease is not considered a clear hereditary disease, but the likelihood of offspring developing renal issues may be higher than in the general population. Secondary nephrotic syndrome is mostly related to factors such as hepatitis B infection, allergies, diabetes, etc., and these diseases are not hereditary either.
Does nephrotic syndrome easily lead to cerebral infarction?
Nephrotic syndrome is a high-risk factor for cerebral infarction, making patients prone to strokes. This is because patients with nephrotic syndrome excrete large amounts of protein in their urine, which reduces protein concentration in the plasma and disrupts the anticoagulant fibrinolysis system, leading to an increased tendency to form blood clots. These clots are prone to develop in the veins of the lower extremities and the renal veins, and cerebral arteries in the skull are also susceptible to occlusion. Therefore, in such patients, if the plasma albumin level is very low, such as below 20 grams per liter, there is a need for routine use of anticoagulant medications.
Does nephrotic syndrome cause itchy skin?
Nephrotic syndrome generally does not cause itchy skin in patients. In patients with nephrotic syndrome, the glomerular filtration barrier is severely damaged, leading to a significant presence of urinary protein and edema, but itchy skin is a rare clinical symptom. If a patient experiences itchy skin, it is recommended to visit the dermatology department of a standard hospital. As such patients may have a disordered immune system, they are prone to various skin issues, such as allergic dermatitis and eczema, which might cause symptoms of itchy skin. However, these are not directly related to nephrotic syndrome.
Causes of edema in nephrotic syndrome
Edema is a diagnostic criterion for nephrotic syndrome, as well as a major clinical symptom and characteristic of the syndrome. There are several reasons why patients develop edema. First, a large amount of protein leaks out from the kidneys, causing a decrease in the concentration of plasma albumin and a decrease in the colloid osmotic pressure in the plasma, which makes it easy for water to move from inside the blood vessels to outside, causing edema. Second, patients with nephrotic syndrome have increased vascular permeability, which also makes it easy for water to enter the interstitial tissues. Among patients with nephrotic syndrome, some are prone to acute renal failure, which further decreases the kidney's ability to excrete water, and these factors together lead to the common occurrence of edema in patients.
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.
How to treat anemia in nephrotic syndrome?
Patients with nephrotic syndrome often do not suffer from anemia. However, if a patient has severe chronic renal failure, renal anemia may occur. Generally, renal anemia occurs when the patient's blood creatinine level exceeds 256 micromoles/liter. Treatment mainly involves the use of erythropoiesis-stimulating agents and iron supplements. If the patient does not have obvious renal failure but exhibits anemia, it is important to investigate the cause. This could include gastrointestinal bleeding, the presence of systemic diseases, or even hematological disorders. For example, lupus nephritis can cause both nephrotic syndrome and anemia. In such cases, high-dose steroids and immunosuppressants may be required as a treatment to fundamentally address the issue.
How long will it take for nephrotic syndrome to get better?
Most cases of nephrotic syndrome are primary nephrotic syndrome, which refers to the absence of specific causes and may be related to immune dysfunction. The disordered immune system attacks the glomerular capillaries causing damage to the filtration barrier, resulting in the patient excreting large amounts of urinary protein. For primary nephrotic syndrome, treatment generally involves the use of corticosteroids or a combination of hormones and immunosuppressants. About 50-60% of patients respond effectively to the medication, which typically takes about two months to take effect. Patients who respond quickly might see effects within one to two weeks, while those with less sensitivity to the medication may need three to four months. The general course of medication is about one year.