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THE JOURNAL OF CARDIOVASCULAR SURGERY
Rivista di Chirurgia Cardiaca, Vascolare e Toracica
Indexed/Abstracted in: BIOSIS Previews, Current Contents/Clinical Medicine, EMBASE, PubMed/MEDLINE, Science Citation Index Expanded (SciSearch), Scopus
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ORIGINAL ARTICLES VASCULAR SECTION
The Journal of Cardiovascular Surgery 2008 October;49(5):639-51
Secondary rupture of abdominal aortic aneurysm following endovascular repair
Rinckenbach S. 1, Thaveau F. 2, Georg Y. 2, Edah Tally S. 2, Hassani O. 2, Kretz J.-G. 2, Chakfé N. 2
1 Department of Vascular Surgery University Hospital of Besançon Besançon, France
2 Department of Vascular Surgery University Hospital of Strasbourg Strasbourg, France
Aim. The aim of this study was to analyze the Literature covering the characteristics of secondary ruptured abdominal aortic aneurysm (AAA) following endovascular repair with aortic stent graft (ASG).
Methods. The study based on a Pubmed search of articles describing the characteristics of secondary ruptured AAA after ASG between January 1995 and May 2008. A total of 105 articles were selected, including the following characteristics: aneurysm diameter evolution, delay between implantation and rupture, average follow-up time, mechanisms implicated, results following further repair.
Results. Out of a total of 23 002 ASG cases reported, of which 47.4% (10 911) were carried out by ASG suppliers themselves, 227 ruptures (1%) have been described. After exclusion of the perioperatory ruptures (occurring within the first month), the average duration of implantation at rupture was 27±16 months, with an average follow-up of 22.4±14 months. When the evolution of the sac was mentioned, AAA diameter decreased or remained stable before rupture in 55.7% of the cases. Mechanisms of rupture have been reported in 168 cases and consisted in a failure of the ASG in 76.1% of the cases. When patients were operated, the mortality rate was 39%.
Conclusion. This study showed how little is actually known about rupture of stented AAA. The available data were provided by studies sponsorized by companies in 47.4% of the cases, and had usually too short follow-up considering the average of duration of implantation at rupture. Rupture mechanisms were not reported in all cases, but a failure of the ASG was considered as responsible for the rupture in a majority of the cases. The absence of warning signs of rupture emphasizes the need of caution about the durability of ASG and also the need to undertake further studies with longer follow-ups.