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Congenital renal arteriovenous malformations
Urology
|January 1, 1981
Summary
Congenital renal arteriovenous malformations (AVMs) are rare vascular anomalies. Early recognition and diagnosis are crucial for appropriate management, with conservative or surgical approaches depending on patient presentation.
Area of Science:
- Urology
- Vascular Surgery
- Pediatric Nephrology
Background:
- Congenital renal arteriovenous malformations (AVMs) are uncommon vascular anomalies.
- The incidence and recognition of these malformations are increasing.
- This study describes six cases of cirsoid and idiopathic renal AVMs.
Observation:
- Patients presented asymptomatically or with gross hematuria and flank pain.
- Physical examination revealed hypertension, cardiomegaly, flank tenderness, and abdominal bruit.
- Intravenous pyelography (IVP) showed filling defects, irregular mucosa, or mass effect in the renal pelvis.
Findings:
- Angiography demonstrated simple or complex arteriovenous communications.
- Key angiographic features included early renal vein filling and normal caliber feeding arteries/draining veins.
- No displacement of intraparenchymal vessels was observed.
Implications:
- Asymptomatic congenital renal AVMs may not require intervention.
- Surgical management prioritizing renal parenchyma preservation is preferred when indicated.
- Improved diagnostic techniques contribute to the rising recognition of these rare conditions.