Abdominal aortic aneurysm neck morphology: proposed classification system.

C O McDonnell; M Halak; A Bartlett; S R Baker

doi:10.1007/bf03169164

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PubMed · 17073239

Abdominal aortic aneurysm neck morphology: proposed classification system.

C O McDonnell·M Halak·A Bartlett·S R Baker

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Abstract

BACKGROUND: While aneurysm neck length, angulation and width have all been previously assessed in endovascular abdominal aortic aneurysm repair (EVAR), aneurysm neck shape has not been considered. AIMS: To analyse the influence of aneurysm neck morphology on outcome following EVAR. METHODS: Aneurysm neck morphology in 70 patients undergoing EVAR from April 2001 to May 2004 was determined using pre-operative CT scans and graft plans. Necks were classified as flared, parallel, irregular, conical, barrel or hourglass. End-points were death,Type I endoleak and graft migration. RESULTS: Forty-six per cent of necks were flared, 34% parallel, 9% irregular, 6% conical, 3% barrel and 3% hourglass. Mean follow-up was 20.2 months (range 4-35). There was one Type I endoleak and one graft migration. There were no aneurysm related deaths. CONCLUSIONS: Assessment of aneurysm neck morphology should be part of the routine preoperative workup for EVAR. A classification system of AAA necks is suggested to facilitate this.

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C O McDonnell, M Halak, A Bartlett, S R Baker. Abdominal aortic aneurysm neck morphology: proposed classification system.. https://doi.org/10.1007/bf03169164

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