Best Nephrotic Syndrome Treatment Doctors in India

What is Nephrotic Syndrome?

Nephrotic syndrome is a glomerular disorder characterised by significant proteinuria (more than 3.5 g per 24 hours in adults and over 40 mg per m?2; per hour in children), hypoalbuminemia (less than 3 g per dL), oedema, and hyperlipidemia. It is important to note that nephrotic syndrome is a syndrome, not a specific disease, and it can be either primary (of renal origin) or secondary to systemic conditions.

What is the pathophysiology behind Nephrotic Syndrome?

The syndrome occurs due to damage to the glomerular filtration barrier, which includes podocytes, the glomerular basement membrane, and the endothelium. This damage makes the barrier abnormally leaky to proteins and triggers several downstream effects that explain the classic features of the disease.

• Loss of albumin leads to decreased oncotic pressure and edema.
• The liver compensates by causing hyperlipidemia.
• Loss of proteins increases the risk of infection and thrombosis.

What are the hallmark clinical features of Nephrotic Syndrome?

Patients typically present with a set of key signs that define nephrotic syndrome. The main clinical features include:

• Massive proteinuria (>3.5 g/day)
• Hypoalbuminemia (<3>
• Generalised oedema (periorbital, pedal, ascites, anasarca)
• Hyperlipidemia and lipiduria (fatty casts, "Maltese cross" under polarised light)

What are the causes of Nephrotic Syndrome?

Nephrotic syndrome can result from primary glomerular diseases or secondary systemic conditions. The major causes include:

• Primary causes:
  • Minimal Change Disease (the most common in children)  
  • Focal Segmental Glomerulosclerosis (FSGS)  
  • Membranous Nephropathy  
  • Membranoproliferative Glomerulonephritis (MPGN)
• Secondary causes:
  • Diabetes mellitus (the most common secondary cause)
  • SLE (systemic lupus erythematosus)
  • Amyloidosis
  • Infections: Hepatitis B, C, HIV, malaria, syphilis
  • Drugs: NSAIDs, gold, penicillamine, lithium
  • Malignancies: lymphoma, carcinoma

What symptoms do patients present with Nephrotic Syndrome?

The symptoms depend on the extent of protein loss and fluid retention. Common symptoms include:

• Oedema (periorbital in mornings, pedal swelling, ascites, pleural effusion)
• Frothy urine (due to proteinuria)
• Fatigue, loss of appetite
• Weight gain from fluid retention
• Infections or thrombotic events (as complications)

What are the complications of Nephrotic Syndrome?

Complications can occur due to protein loss, fluid retention, and metabolic imbalances. The main complications include:

• Infections (loss of immunoglobulins, complement proteins)
• Thrombosis (loss of antithrombin III, renal vein thrombosis, DVT, PE)
• Hyperlipidemia-related problems (atherosclerosis, CAD)
• Hypocalcemia & bone disease (loss of vitamin D-binding protein)
• Malnutrition & growth retardation in children
• Progression to chronic kidney disease

How is Nephrotic Syndrome diagnosed?

The diagnosis is established by analysing urine samples, conducting blood tests, and performing a kidney biopsy. Key investigations include:

• Urine analysis: proteinuria exceeding 3.5 grams per day and lipiduria.
• Blood tests: hypoalbuminemia, hypercholesterolemia, and possible renal dysfunction.
• A kidney biopsy helps differentiate among minimal change disease, focal segmental glomerulosclerosis (FSGS), and membranous nephropathy.

How is Nephrotic Syndrome treated?

Treatment involves a combination of general supportive measures and targeted therapy aimed at the underlying cause. The management plan consists of:

• Limit salt intake and consume a moderate amount of protein.
• Diuretics are commonly used to reduce oedema (swelling caused by fluid retention).
• Statins are used to treat hyperlipidemia (high cholesterol levels).
• Anticoagulants (if thrombosis risk)
• Vaccinations (pneumococcal, influenza)

What is the prognosis of Nephrotic Syndrome?

The prognosis varies depending on the underlying cause and the response to treatment.

• Minimal Change Disease has an excellent prognosis (especially in children)
• FSGS and Membranous Nephropathy are at a higher risk of chronic kidney disease
• Secondary causes of outcome depend on the control of diabetes, SLE, or other systemic disease

How can Nephrotic Syndrome be prevented or minimised?

Prevention emphasizes early detection and management of risk factors. Effective strategies include::

• Timely treatment of diabetes and hypertension
• Avoiding steroids (NSAIDs, some antibiotics)
• Regular monitoring of patients (diabetics, lupus)
• Lifestyle changes: low-salt diet, weight management, and stop smoking