Dataset Information

Repair of extra-anatomic bypass graft structural degeneration and pseudoaneurysm with endovascular stent-graft relining.

ABSTRACT:

SUBMITTER: Stephens EH

PROVIDER: S-EPMC8303061 | biostudies-literature | 2020 Sep

REPOSITORIES: biostudies-literature

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Publications

Repair of extra-anatomic bypass graft structural degeneration and pseudoaneurysm with endovascular stent-graft relining.

Stephens Elizabeth H EH Fleischmann Dominik D Starr Albert A Miller D Craig DC

JTCVS techniques 20200702

PMID: 34317893

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Project description:ObjectivesTo evaluate the influence of baseline parameters on the occurrence of stent-graft surface movement after endovascular aneurysm repair (EVAR) and to investigate its association with migration and stent-graft-related endoleaks (srEL).MethodsIn this retrospective, cross-sectional study, three-dimensional surface models of the stent-graft, delimited by landmarks using custom-built software, were derived from the pre-discharge and last follow-up computed tomography angiography (CTA). Stent-graft surface movement in the proximal anchoring zone between these examinations was considered significant at a threshold of 9 mm. The Cox proportional hazards model was used to determine baseline variables associated with the occurrence of stent-graft surface movement. The association between migration and srEL with stent-graft surface movement was tested with the chi-square and the Fisher exact test, respectively.ResultsStent-graft surface movement was observed in 54 (28.9%) of 187 patients. Multivariate analysis revealed that age ([HR] 1.05; p = 0.017), proximal neck diameter ([HR] 5.07; p < 0.001), infrarenal aortic neck angulation ([HR] 1.02, p = 0.002), and proximal neck length ([HR] 0.62, p < 0.001) were significantly associated with the occurrence of stent-graft surface movement. Migration and srEL occurred in 17 (31.5%) and 5 (9.3%) patients, with and 11 (8.3%) and 2 (1.5%) without stent-graft surface movement (p < 0.001, p = 0.022).ConclusionsAge, neck diameter, infrarenal neck angulation, and proximal neck length were significantly associated with the occurrence of stent-graft surface movement. Apart from possible use of adjunctive sealing systems, concerned patients may benefit from regular CTA surveillance, enabling timely diagnosis of subtle changes of stent-graft position.Key points• Stent-graft surface movement, demonstrating subtle, three-dimensional changes in stent-graft position in the proximal anchoring zone, can be derived from CTA examinations. • Age, proximal neck diameter, and infrarenal neck angulation were significantly associated with an increased incidence of stent-graft surface movement. Stent-graft surface movement is significantly more frequent in patients with stent-graft migration and stent-graft-related endoleaks. • Consideration of risk factors for stent-graft surface movement may help to identify patients who might benefit from regular CTA surveillance and timely diagnosis of subtle changes of stent-graft position, enabling re-interventions to prevent migration and srEL.

Dataset Information

Repair of extra-anatomic bypass graft structural degeneration and pseudoaneurysm with endovascular stent-graft relining.

Publications

Repair of extra-anatomic bypass graft structural degeneration and pseudoaneurysm with endovascular stent-graft relining.

Similar Datasets

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