Synonyms: AV fistula, Arteriovenous shunt
German: Arteriovenöse Fistel
Aetiologically speaking fistulas are differentiated by being either congenital or acquired. The latter arise via vessel wall trauma or chronic vessel wall irritation (eg. venous hypertension as part of sinus thrombosis events).
Moreover, artificial arteriovenous shunts are implanted for therapeutic purposes, including
Haemodynamic complications of pathological arteriovenous fistulas are the result of
The diagnosis of pathological AV fistulas is carried out in image form by way of angiography (eg. DSA, MR angiography) or ultrasound ( Doppler procedure, duplex sonography) methods. Superficial fistulas are identifiable by their characteristic flow noise via auscultation.
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