Vascular Diseases Associated with Hematuria Flashcards
Vascular Diseases Associated with Hematuria causes ….?
Hemangiomas, hemangiolymphangiomas, angiomyomas, and arterio venous malformations of the kidneys and lower urinary tract
Which is the most common benign solid tumors of the kidney … ?
Angiomyolipomas
Composed of vascular, smooth muscle, and fatty tissue elements.
They can rupture on occasion to cause severe hemorrhage.
Angiomyolipomas are an important component of the tuberous sclerosis complex
What is nutcracker syndrome ….?
Unilateral bleeding of varicose veins of the left ureter, resulting from compression of the left renal vein between the aorta and superior mes enteric artery (mesoaortic compression)
What r the causes of RVT in older children ….?
Nephrotic syndrome, cyanotic heart disease, inherited hypercoagulable states, sepsis, following kidney transplantation, and following exposure to angiographic contrast agents
Bilateral RVT seen in …?
AKI
- RVT is usually unilateral *
RCC is more common in SSD or SST ….?
renal cell carcinoma, which is more common in sickle cell trait.
Why sickle cell nephropathy (SSN) develops …? sickle cell nephropathy (SSN)
sickle cell nephropathy (SSN) are gener ally related to microthrombosis secondary to sickling in the relatively hypoxic, acidic, hypertonic renal medulla, where vascular stasis is normally present
Idiopathic hypercalciuria how it will present clinically ….?
Idiopathic hypercalciuria, which may be inherited as an autosomal dominant disorder,
can clinically present as recurrent gross hematuria persistent microscopic hematuria, dysuria, crystalluria, or abdominal pain with or without kidney stone formation
Others conditions associated with hypercalciurea …?
hyperpara thyroidism
vitamin D intoxication,
immobilisation, and
sarcoidosis
How do u diagnose a case of hypercalciurea ….?
Hypercalciuria is diagnosed by a 24hr urinary calcium excretion > 4 mg/kg
A screening test for hypercalciuria may be performed on a random urine specimen by measuring the calcium and creatinine concentrations.
A spot urine calcium:creatinine ratio (mg/dL:mg/dL) > 0.2 suggests hypercalciuria in an older child
Risk associated with hypercalciuria …?
nephrolithiasi
development of low bone mineral density,
as well as an increased incidence of urinary tract infections
Total risk factor in 40% of children with kidney stones…?
Idiopathic hypercalciuria
Treatment of choice for Idiopathic hypercalciuria …?
Oral thiazide diuretics can normalize urinary calcium excretion by stimulating calcium reabsorption in the proximal and distal tubules
Role of Sodium restriction in Idiopathic Hypercalciuria ..?
Sodium restriction is important because urinary calcium excretion parallels sodium excretion
Is dietary restrictions of calcium in case of idiopathic hypercalciurea …?
Dietary calcium restriction is not recommended (except in children with a massive calcium intake > 250% of the recommended dietary allowance by dietary history)