Complications of Endovascular Repair of Abdominal Aortic Aneurysms: A Review

Abstract

The endovascular procedure for repair of abdominal aortic aneurysms has had an enormous impact on the treatment of this challenging disease. Complications, however, do occur and it is important to have a thorough understanding of the array of complications and appropriate management strategies. In this review of endovascular complications, we describe early and late complications paying particular attention to preventive, treatment and surveillance strategies.

Improving Post-EVAR Surveillance with a Smart Stent-Graft

“…However, and in spite of major advances in EVAR techniques, adverse reactions still occur [3] and lifelong surveillance is recommended [4]. Due to these complications, currently, questions are being raised regarding the follow-up costs [5] and alternative approaches, such as a smart stent-graft, are being pursued.…”

“…With time, many of the problems have been solved due to the accumulation of experience and the introduction of better devices but, nevertheless, some problems still occur. These complications can be classified as early or late and further detailed as systemic or related with the delivery, deployment, or the device itself [3]. Table 1 presents some of EVAR's problems involving stent-grafts.…”

“…The aorta radius ranges from 2 to 2,5 cm and the wall thickness presents typical values around 2 -2,5 mm [20,23]. The blood flow is considered newtonian, laminar and incompressible; the density is equal to 1.05 g/cm 3 and the viscosity is 0.0035 Pa.s.…”

Development of a flexible pressure sensor for measurement of endotension

“…EVAR complications can be described as early, if they occur less than 30 days after the procedure, or as late, otherwise. They can be further categorized as being related to the delivery, the deployment, the devices, systemic problems, and operator errors (Katzen et al 2006). Table 1 summarizes the complications concerning the deployment and the device.…”

“…Table 1. Complications specific to endovascular grafts (adapted from (Katzen et al 2006) Endoleak is a term that describes persistent aneurysm sac perfusion and pressurization (Katzen et al 2006). It is the most common complication after stent-graft implantation (Mita et al 2000) and occur mainly due to incomplete seal of the endovascular graft.…”