Repair of popliteal aneurysm and spontaneous arteriovenous fistula in a patient with Marfan syndrome

Correção cirúrgica de pseudoaneurismas e fístula arteriovenosa complexa entre vasos poplíteos

“…10 However, for treatment of true aneurysms of the popliteal artery, it is known that conventional surgery offers superior long-term patency, particularly in younger patients and when arterial reconstruction is performed using a venous graft. 3 In the case described here, conventional surgery was chosen. One of the factors that influenced the decision to employ open surgery was that no covered stent with an appropriate diameter was available, 9 because the arteriomegaly proximal to the AVF resulted in a difference in caliber between the artery proximal and distal of the AVF and there is no conical covered stent that could fit the disproportion between these diameters.…”

“…An arteriovenous fistula (AVF) is an abnormal and permanent communication between an artery and a vein, 1,2 which is generally associated with penetrating traumas and iatrogenic injuries. 1,3 The duration of clinical presentation and the time that elapses between trauma and diagnosis vary and may even run to decades. 4 Penetrating traumas to the artery wall can cause formation of pseudoaneurysms and, if there is also venous damage, to development of AVF.…”

Endovascular Repair of a Spontaneous Popliteal Arteriovenous Fistula Associated With a Venous Aneurysm

“…The association between PAF and a venous aneurysm is infrequent, and the few reported cases have been described after trauma or in patients with concomitant connective tissue abnormalities such as Marfan syndrome. 4 Prompt diagnosis and treatment of PAF are important to reduce the risk of deep vein thrombosis, post-thrombotic syndrome, distal embolization, limb loss, and pulmonary embolism, especially if in association with a venous aneurysm. 4,5 Here, we report the case of a spontaneous arteriovenous fistula associated with a venous aneurysm in a patient without previous history of trauma or connective tissue disorders.…”

“…4 Prompt diagnosis and treatment of PAF are important to reduce the risk of deep vein thrombosis, post-thrombotic syndrome, distal embolization, limb loss, and pulmonary embolism, especially if in association with a venous aneurysm. 4,5 Here, we report the case of a spontaneous arteriovenous fistula associated with a venous aneurysm in a patient without previous history of trauma or connective tissue disorders. We will discuss its etiologies and the evidence regarding endovascular management for this condition.…”

“…The association between PAF and a venous aneurysm is infrequent, and the few reported cases have been described after trauma or in patients with concomitant connective tissue abnormalities such as Marfan syndrome. 4…”