Uronephrology Flashcards
With conventional ultrasonography and Doppler mode which indexes can be used to evaluate and detect hemodynamic changes that can affect renal function in cats ?
Resistivity index and pulsatility index.
They are calculated from the systolic and diastolic velocity values obtained by the wave spectrum, and represent the resistance of the vascular wall to blood flow during organ perfusion. These indexes have been used in the evaluation of renal perfusion in humans and dogs, as well as horses and cats.
Ref : JFMS Nov 2022, Evangelista, Evaluating feline lower urinary tract disease: Doppler ultrasound of the kidneys
In which disease resistivity index (RI) and pulsatility index (PI) of the kidneys (calculated in conventional ultrasonography and doppler mode) can be significantly increased in comparison with healthy cats ?
Feline lower urinary tract disease (FLUTD).
Cats with FLUTD showed significantly higher values in the assessment of RI (P = 0.027 and P = 0.034, respectively) and PI (P=0.044 and P=0.048, respectively) of the right and left kidneys, compared with control group.
Ref : JFMS Nov 2022, Evangelista, Evaluating feline lower urinary tract disease: Doppler ultrasound of the kidneys
What are the 3 main types of glomerular disease in dogs ?
Immune complex glomerulonephritis, amyloidosis and glomerulosclerosis
Name three dog breeds predisposed to familial renal amyloidosis
Beagle, English Foxhound and Shar Pei
What type of familial glomerulopathy suffers the soft coated wheaten terrier ?
Podocytopathy
How many dogs with glomerulonephritis and amyloidosis do not have azotemia at initial diagnosis (respectively)?
53% and 26%
How many dogs with glomerulonephritis and amyloidosis have hypoalbuminemia at diagnosis (respectively)?
60% and 70%
How many dogs with glomerulopathies have immune complex glomerulonephritis ?
48,1%
Among dogs with renal biopsies for suspected glomerulopathy, how many have membranoproliferative glomerulonephritis?
26%
What are the histopathologic characteristics of membranoproliferative glomerulonephritis?
Light microscopy: thickened capillary loops and mesangial hypercellularity
IFM: immune complex deposition of a combination of C3 IgM/IgA/IgG in the glomerular basement membrane
TEM: immune depositis
What is the most common glomerular disease in cats ?
Membranous Nephropathy
How many dogs with biopsies for glomerular disease suffer from membranous Nephropathy?
26%
What defect results in hereditary nephritis in dogs ?
Basement membrane collagen IV defect
Name 3 breeds of dog predisposed to renal agenesia
Beagle, Doberman pinscher and Shetland sheepdog
What type of sympathetic and parasympathetic receptors are present in the canine ureters ?
Alpha-1, alpha-2 and beta adrenoreceptors and muscarinic cholinergic receptors