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Retrograde Catheterization of the Superior Mesenteric Artery and Celiac Axis as a Bailout Technique in a Complex FEVAR.
Vascular and Endovascular Surgery 2021 August
INTRODUCTION: A retrograde approach of the celiac trunk (CT) and superior mesenteric artery (SMA) to catheterize the visceral vessels during a fenestrated endovascular aortic reparation (FEVAR) is a feasible option when standard access techniques have failed.
REPORT: In this report we describe a patient with a previous endoluminal repair of an infrarenal aortic aneurysm, complicated by a persistent type 1a endoleak despite treatment with endoanchor fixation. A decision was made to proceed with a proximal 4 vessel FEVAR to treat the type 1a endoleak. Due to angulation of the mesenteric vessels, and a rotation of the fenestrated stent graft during deployment, the CT and SMA were unable to be catheterized. A decision was made to perform a median laparotomy for retrograde access of the aforementioned vessels, allowing successful catheterization and stenting. The patient was discharged 30 days following the procedure, without any major post-operative complications. Follow up at 6 weeks with a contrasted enhanced computerized tomography scan showed a stable repair with no residual type 1a endoleak.
DISCUSSION: Catheterization of the target vessels during a FEVAR can be difficult, especially in patients with challenging anatomy. Prolonged surgical time in an attempt to catheterize the vessels can result in increased morbidity for the patient, and ultimately may result in the procedure being abandoned or conversion to an open repair of the aneurysm. Retrograde access of the target vessels as a bailout measure during fenestrated stent graft repair due to failure of an antegrade approach has rarely been reported in the literature. Only a few cases are described in the available literature, however, none of them describe retrograde approach of both the CT and SMA as described in this case. A median laparotomy for retrograde access is a feasible alternative in these situations, and should be considered if the patient is suitable.
REPORT: In this report we describe a patient with a previous endoluminal repair of an infrarenal aortic aneurysm, complicated by a persistent type 1a endoleak despite treatment with endoanchor fixation. A decision was made to proceed with a proximal 4 vessel FEVAR to treat the type 1a endoleak. Due to angulation of the mesenteric vessels, and a rotation of the fenestrated stent graft during deployment, the CT and SMA were unable to be catheterized. A decision was made to perform a median laparotomy for retrograde access of the aforementioned vessels, allowing successful catheterization and stenting. The patient was discharged 30 days following the procedure, without any major post-operative complications. Follow up at 6 weeks with a contrasted enhanced computerized tomography scan showed a stable repair with no residual type 1a endoleak.
DISCUSSION: Catheterization of the target vessels during a FEVAR can be difficult, especially in patients with challenging anatomy. Prolonged surgical time in an attempt to catheterize the vessels can result in increased morbidity for the patient, and ultimately may result in the procedure being abandoned or conversion to an open repair of the aneurysm. Retrograde access of the target vessels as a bailout measure during fenestrated stent graft repair due to failure of an antegrade approach has rarely been reported in the literature. Only a few cases are described in the available literature, however, none of them describe retrograde approach of both the CT and SMA as described in this case. A median laparotomy for retrograde access is a feasible alternative in these situations, and should be considered if the patient is suitable.
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