Graft distortion after endovascular repair of abdominal aortic aneurysm : Association with sac morphology and mid-term complications

• Published in: Cardiovascular and interventional radiology Vol. 23; no. 5; pp. 358 - 363
• Main Authors: GOULD, Derek Alan, EDWARDS, Richard David, HARRIS, Peter Lyon, MCWILLIAMS, Richard Gregory, ROWLANDS, Peter Christopher, MARTIN, Janis, WHITE, Donagh, FEAR, Simon, BAKRAN, Ali, BRENNAN, John, GILLING-SMITH, Geoffrey
• Format: Journal Article
• Language: English
• Published: Heidelberg Springer 01.09.2000; Berlin Springer Nature B.V
• Subjects: Aged; Aortic Aneurysm, Abdominal - diagnostic imaging; Aortic Aneurysm, Abdominal - surgery; Aortography; Biological and medical sciences; BIOLOGICAL REPAIR; Blood and lymphatic vessels; Blood Vessel Prosthesis Implantation; Cardiology. Vascular system; COMPUTERIZED TOMOGRAPHY; Diseases of the aorta; Female; Follow-Up Studies; GRAFTS; Humans; Incidence; LIMBS; Male; Medical sciences; Models, Statistical; PATIENTS; Postoperative Complications - diagnostic imaging; Postoperative Complications - epidemiology; Postoperative Complications - etiology; RADIOLOGY AND NUCLEAR MEDICINE; Stents; Tomography, X-Ray Computed; Treatment Outcome; VASCULAR DISEASES; Vascular Patency; Human; Endoprosthesis; Prognosis; Prosthesis; Aneurysm; Instrumentation therapy; Cardiovascular disease; Arterial disease; Vascular disease; Abdominal aorta; Treatment; Surgery; Complication; Aortic disease
• ISSN: 0174-1551; 1432-086X
• DOI: 10.1007/s002700010085

To investigate the incidence, significance, and mechanism of stent-graft distortion after endovascular repair (EVR) of abdominal aortic aneurysm. EVR of abdominal aortic aneurysm was performed in 51 cases (49 modular, bifurcated; 2 tube). Thirty-two patients were followed for 6 or more months and had equivalent baseline and follow-up images which could be used to determine changes in graft configuration. Sac dimensions were measured using computed tomographic (CT) images and graft-related complications were recorded. Amongst 32 patients evaluated on follow-up, there was graft distortion in 24. Distorted grafts were significantly (p = 0.002) associated with sac diameter reduction (mean 5 mm) and sac length reduction (mean 8.1 mm). All graft-related complications occurred in the limbs of eight distorted grafts, with a mean reduction of sac length in this group of 7.8 mm on reformatted CT images. There was a highly significant association between graft distortion and limb complications, and reduced sac dimensions.