title: Endovascular treatment of a giant superior mesenteric artery pseudoaneurysm using a nitinol stent-graft.
abstract: A 68-year-old woman presenting with gastrointestinal bleeding (hematocrit 19.3%) and in a critical clinical condition (American Society of Anesthesiologists grade 4) from a giant superior mesenteric artery pseudoaneurysm (196.0 x 131.4 mm) underwent emergency endovascular treatment. The arterial tear supplying the pseudoaneurysm was excluded using a 5.0 mm diameter and 31 mm long monorail expanded polytetrafluoroethylene (ePTFE)-covered self-expanding nitinol stent. Within 6 days of the procedure, a gradual increase in hemoglobin levels and a prompt improvement in the clinical condition were observed. Multislice CT angiograms performed immediately, 5 days, 30 days and 3 months after the procedure confirmed the complete exclusion of the pseudoaneurysm.
authors.affiliation: Diagnostic Imaging and Interventional Radiology, University of Tor Vergata, Rome, Italy.
authors.forename: Roberto
authors.initials: R
authors.lastname: Gandini
authors.forename: Vincenzo
authors.initials: V
authors.lastname: Pipitone
authors.forename: Daniel
authors.initials: D
authors.lastname: Konda
authors.forename: Gianluca
authors.initials: G
authors.lastname: Pendenza
authors.forename: Alessio
authors.initials: A
authors.lastname: Spinelli
authors.forename: Matteo
authors.initials: M
authors.lastname: Stefanini
authors.forename: Giovanni
authors.initials: G
authors.lastname: Simonetti
mesh_terms: D000368:Aged; D000497:Alloys; D017541:Aneurysm, False / Q000000981:diagnostic imaging / Q000601:surgery*; D000792:Angiography; D019917:Blood Vessel Prosthesis Implantation; D005260:Female; D006801:Humans; D017538:Mesenteric Artery, Superior; D011138:Polytetrafluoroethylene; D015641:Radiography, Interventional; D015607:Stents; D014057:Tomography, X-Ray Computed
chemical_list: D000497:Alloys; C013616:nitinol; D011138:Polytetrafluoroethylene