Nephrotic Syndrome Flashcards
Def of Nephrotic Syndrome
Incidence of Idiopathic Nephrotic Syndrome
- It is the most common form of childhood NS.
- Representing more than 90 percent of cases between 1 and 10 years of age and 50 percent after 10 years of age.
Age in Idiopathic Nephrotic Syndrome
2:8 years
Sex in Idiopathic Nephrotic Syndrome
Male 2 : Female 1
Pathogenesis of Idiopathic Nephrotic Syndrome
- Mechanism of Glomerular Injury
- Circulating non-immune Factors
- Circulating immune Factors
- Mutations in podocyte or slit diaphragm proteins
Mechanism of Glomerular Injury in Nephrotic Syndrome
- Circulating non-immune factors:
Mechanism of Glomerular Injury in Nephrotic Syndrome
- Circulating immune factors:
Mechanism of Glomerular Injury in Nephrotic Syndrome
- Mutations in podocyte or slit diaphragm proteins
Pathogenesis of Idiopathic Nephrotic Syndrome
- Mechanism of Edema
Mechanism of Edema in Nephrotic Syndrome
- Arterial Underfiling
- A reduction in plasma oncotic pressure induced by hypoalbuminemia would seem to favor the movement of fluid out of the vascular space into the interstitium and produce arterial underfilling.
Mechanism of Edema in Nephrotic Syndrome
- Sodium retention
- Sodium retention is due to increased reabsorption in the collecting tubules mainly due to increased activity of the Na-K-ATPase pump in the cortical collecting tubule and relative resistance to atrial natriuretic peptide.
Pathogenesis of Nephrotic Syndrome
- Mechanism of hypoalbuminemia
Pathogenesis of Nephrotic Syndrome
- Mechanism of Proteinurea
Pathogenesis of Idiopathic Nephrotic Syndrome
- Mechanism of Hyperlipidemia
CP of Nephrotic Syndrome
CP of Nephrotic Syndrome
- Edema
What is the major Presenting Symptom of Nephrotic Syndrome?
Edema
Edema in Nephrotic Syndrome
- Manifestation
It becomes clinically detectable when fluid retention exceeds 3-5% of body weight.
Edema in Nephrotic Syndrome
- Sites
- Periorbital edema frequently misdiagnosed as allergy is often the initial symptom.
- Edema is gravity dependent, localized to the lower extremities in the upright position, and to the dorsal part of the body in reclining position.
Edema in Nephrotic Syndrome
- Characters
- This edema is soft and pitting, keeping the marks of clothes or finger pressure.
Edema in Nephrotic Syndrome
- Severity
- Anasarca may develop with ascites, and pleural and pericardial effusions. (If anasarca occurred can’t be AGN)
- Edema of the scrotum and penis, or labia, may be seen.
CP of Nephrotic Syndrome
- Abdominal Pain
- It may be related to rapid formation of ascites or concomitant hypovolemia.
- It is occasionally due to a complication such as peritonitis, thrombosis or rarely, pancreatitis.
CP of Nephrotic Syndrome
- HTN
- Mild in 95% of cases.
- Blood pressure is usually normal but sometimes elevated.
CP of Nephrotic Syndrome
- Macroscopic Hematuria
It is observed in 3% of cases.
CP of Nephrotic Syndrome
- Complications
The disease may also be revealed by a complication
CP of Nephrotic Syndrome
- Asymptomatic
NS is occasionally discovered during a routine urine analysis.
Urine Analysis in Nephrotic Syndrome
- Volume
- Color
- Casts
- Specific Gravity
Investigations for Nephrotic Syndrome
- Urine Analysis
Investigations for Nephrotic Syndrome
- Urine & Blood
Urine Analysis in Nephrotic Syndrome
- Proteinuria