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Nephrotic syndrome in children. for under graduates
1.
2. Dr. Muhammad Sajjad Sabir
MBBS, DCH, MCPS, FCPS
Assistant Professor of Paediatrics
3. Manifestation of glomerular disease,
characterized by nephrotic range proteinuria
and a triad of clinical findings associated with
large urinary losses of protein :
hypoalbuminaemia , edema and
hyperlipidemia
5. 15 times more common in children than
adults
2 – 7 cases per 100,000 children per year
(Global)
Incidence South Asia 16/100,000 children
Most common= 1.5-6 year
boys : girls--- 2:1 ratio
6. Defined as
protein excretion of > 40 mg/m2
/hr
First morning protein : creatinine ratio of > 2-3 : 1
- Nelson Textbook of Paediatrics, Vol 2, 19th
Edition, page 1801
11. Permeability of glom.cap.memb. Proteinuria
Intravascular vol
ADH
Renal perfusion
pressure
Water
Reabsorptn
In
Collecting
ducts
Actv. reinin
Ang. ald. sys
Tubular reabsorp.
Of Na
Hypoalbuminemia
Hepatic protein synthesis Plasma oncotic
pressure
Hyperlipidemia Transudation of fluid
from intravascular
comp. To interstial
space
Edema
12. Preceding flu-like illness
General health
(anorexia, weight gain ,lethargy)
Edema
Urinary symptoms
(hematuria, oliguria)
Infection, diarrhea, abd. pain
Drug intake
Past history
13. Edema
Mild to start with – peri orbital puffiness, lower
extremities
Progression to generalized edema, ascites, pleural
effusion, genital edema
Decreased urine output
Anorexia, Irritability, Abdominal pain and diarrhoea
Absence of Hypertension Gross hematuria
Vital & BP
Height & weight for age
Anemia - Nelson Textbook of Paediatrics, Vol 2, 19th
Edition, page 1802
Clinical Features-Examination
14. CLINICAL FEATURES Minimal Change
Nephrotic Syndrome
Focal Segmental
Glomerulosclerosis
Membranous
Nephropathy
Age ( yr ) 2 - 6 2 - 10 40 - 50
Sex ( M : F ) 2 : 1 1.3 : 1 2 : 1
Nephrotic
Syndrome
100 % 90 % 80 %
Asymptomatic
proteinuria
0 10 % 20 %
Hematuria 10 – 20 % 60 – 80 % 60 %
Hypertension 10 % 20 % early infrequent
Rate of
progression to
renal failure
Non
progressive
10 yrs 50 % in 10 – 20
yrs
Associated
Conditions
Usually none None Renal vein
thrombosis, SLE,
Hepatitis B
23. DIETARY ADVICE:
A balanced diet adequate in proteins and
calories is recommended
foods high in sodium avoided
High protein diet
Edema no added salt
Treatment of infections
Parent Education
Can attend school
Can participate in physical activities as tolerated
24. If significant edema
Diuretics + Aldosterone antagonist
( Fursemide, spironolactone )
Salt restriction
DIURETICS INDICATIONS:
Severe symptomatic edema
Steroid toxicity or steroid contraindicated
Q.Best diuretic in Nephrotic Syndrome?
25. ROLE OF INTRAVENOUS ALBUMIN
INDICATIONS:
Signs of hypovolemia
Sever oedema
DOSAGE & ADMINISTRATION:
I/V salt poor 25% albumin infusion
0.5-1 gm/kg/doze over 6-12 hrs followed
by Frusemide 1-2 mg/kg/dose (I/V)
26. CORTICOSTEROID THERAPY:
DOSAGE & ADMINISTRATION:(after a -ve PPD test)
Prednisolone 60mg/m2
/day (max 80mg) single
daily dose {or 2-3 dd} for 6 wks consecutively
After the initial 6-wk course, prednisone dose tapered
to 40 mg/m2
/day given every other day as a
single daily dose for at least 4 wk.
Alternate-day dose then slowly
tapered→discontinued over next 1-2 mo
27. REPONSE TO STEROID:80-90% of children
respond within 3 wk
10% respond by first week
70% by second week
85% by third week
92% by forth week
Response means clinical remission, diuresis,
and urine trace or negative for protein for 3
consecutive days
Who respond to prednisone therapy do so
within the first 5 wk of treatment.
28. STEROID DEPENDENT: Patients who relapse while on
alternate-day steroid therapy or within 28 days of
completing a successful course of prednisone therapy
FREQUENT RELAPSERS: Patients who respond well
to prednisone therapy but relapse ≥4 times in a 12-mo
period
INFREQUENT RELAPSERS :3 or less relapses per yr
STEROID RESISTANT: Fail to respond to corticosteroid
therapy within 8 wks
Children who continue to have proteinuria (2+ or greater)
Diagnostic renal biopsy should be performed
29. Relapses should be treated with 60 mg/m2
/day
(80 mg daily max) in a single am dose until the
child enters remission (urine trace or negative
for protein for 3 consecutive days)
The prednisone dose is then changed to
alternate-day dosing as noted with initial
therapy, and gradually tapered over 4-8 wk.
Ghai Essential Paediatrics,8th
edition, page 479