Glomerulonephritis Flashcards
what is glomerulonephritis
damage to the glomeruli (filtration) of the kidneys
triad of nephrotic syndrome
proteinuria (>3g/day) // hypoalbuminaemia (<30g/L) // oedema
how does nephrotic syndrome predispose thrombosis
loss of antithrombin III, protein C+S, rise in fibrinogen
how does nephrotic syndrome predispose preclinical hypothyroid
loss if thyroxine-binding globulin –> loss of total (not free) thyroxine levels
what conditions are considered nephrotic syndromes
minimal change, membranous, focal segmental, amyloid, diabetic nephropathy
who is minimal change disease most common in
kids (75% of cases)
causes minimal change disease
usually idiopathic - occasionally drugs eg NSAIDs, rifampicin, hodgkins lymphoma, mono
symptoms minimal change disease
nephrotic (proteinuria, hypoalbumin, oedema) // normotension
what protein is lost in minimal change disease
albumin + transferrin only
biopsy minimal change disease
light microsopy = normal // electron = fusion of podocytes + effacement of foot process
prognosis minimal change disease
good prognosis, most stop before adulthood //
mx minimal change disease
1 = oral steroids // 2 = cyclophosphamide
who usually gets FSGS
young adults
causes FSGS
idiopathic // IgA nephropathy // HIV // heroin // Alport’s // sickle cell
biopsy FSGS
light = sclerosis + hyalinosis (ronseal appearance) // electron = effacement of foot process
mx FSGS
steroids +/- Ciclosporin
effect of renal transplant on FSGS
high rate recurrence
prognosis FSGS
10% resolve spontaneously // 50% ESRF in 10 years
who gets membranous glomerulonephritis
most common glomerulonephritis in adults
causes membranous glomerulonephritis
idiopathic - phospholipidase A2 antibodies // Heb B, malaria, syphilis // cancer eg prostate, lung, blood // drugs eg gold, penicillamine, NSAID // SLE, thyroid, RA
biopsy membranous glomerulonephritis
electron = thickened membrane ‘spike and dome’ // immune complex in basement
mx membranous glomerulonephritis
all on ACEi or ARB // immunosuppression eg steroid + cyclophosphamide // maybe anti-coag