Fístula arteriovenosa após termoablação com laser endovenoso 1470 nm: relato de caso

Endovenous laser ablation for saphenous veins and tributaries - the LEST technique

Endovenous thermal ablation is now one of the most important techniques for treating chronic venous insufficiency. Technical refinements and technological innovations have made it possible to employ the method not only in the saphenous veins, but also to treat superficial veins such as varicose tributaries. We describe a technique for surgical treatment of varicose veins using endovenous laser thermal ablation employing multiple punctures and present the experience at our service with analysis of 601 cases operated using this technique. Thermoablative treatment of tributary veins with multiple puncture sites expands the applications for endolaser in treatment of lower limb varicose veins, providing, comprehensive, safe, and effective treatment.

Iatrogenic Arteriovenous Fistula Formation after Endovenous Laser Treatment Resulting in High-output Cardiac Failure: A Case Report and Review of the Literature

Formation of a clinically significant iatrogenic arteriovenous fistula after endovenous laser treatment of the great saphenous vein is an extremely rare complication. Because of the infrequency of reported cases, there is no clear consensus on how to best manage this complication. We present a unique case of an iatrogenic high-output superficial femoral artery-common femoral vein fistula resulting in right heart failure and a distal deep vein thrombosis. Deployment of a covered arterial stent graft resulted in resolution of the arteriovenous fistula and high-output cardiac state. Clinically significant arteriovenous fistulas resulting from inadvertent vessel injury during endovenous laser treatment appear to be amenable to percutaneous endovascular interventions. During these challenging endovascular cases, intravascular ultrasonography can be used to help delineate the morphology of the fistula tract and obtain vessel measurements to ensure accurate endoprosthesis sizing and placement.