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THE JOURNAL OF CARDIOVASCULAR SURGERY

Rivista di Chirurgia Cardiaca, Vascolare e Toracica


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ORIGINAL ARTICLE  VASCULAR SECTION


The Journal of Cardiovascular Surgery 2018 February;59(1):79-86

DOI: 10.23736/S0021-9509.16.08842-X

Copyright © 2015 EDIZIONI MINERVA MEDICA

lingua: Inglese

Persistent type II endoleak after EVAR: the predictive value of the AAA thrombus volume

Enrico GALLITTO 1 , Mauro GARGIULO 1, Chiara MASCOLI 1, Antonio FREYRIE 1, Massimo DE MATTEIS 2, Carla SERRA 3, Claudio BIANCHINI MASSONI 1, Gianluca FAGGIOLI 1, Andrea STELLA 1

1 Unit of Vascular Surgery, Department of Experimental, Diagnostic and Speciality Medicine, University of Bologna, Policlinico Sant’Orsola-Malpighi, Bologna, Italy; 2 Department of Radiology, Azienda Policlinico S. Orsola-Malpighi, Bologna, Italy; 3 Unit of Ultrasound, Department of Internal Medicine and Gastroenterology, Azienda Policlinico S. Orsola-Malpighi, Bologna, Italy


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BACKGROUND: Persistent type II endoleaks (ELIIp, ≥6 months) after an endovascular aneurysm repair (EVAR) can be associated with adverse outcomes. The aims of this study are the evaluation of the incidence of ELIIp, their preoperative morphological predictive features (PMF) and the post-EVAR abdominal aortic aneurysm (AAA) evolution in the presence of ELIIp.
METHODS: Patients underwent EVAR between 2008 and 2010 were prospectively collected. Cases with ELIIp (group A: AG) were identified. A control group without ELIIp (group B: BG), homogeneous for clinical characteristics, follow-up timing and methods (CTA and/or CEUS at 6.12 months and yearly thereafter) was retrospectively selected. The PMF evaluated by computed-tomography-angiography (CTA) were: AAA-diameter, number and diameter of AAA efferent patent vessels (EPV), AAA-total volume (TV), AAA-thrombus volume (THV) and TV/THV rate (%VR). Volumes were calculated by the dedicated vessels analysis software. AG and BG were compared. The primary endpoint was to evaluate the incidence of ELIIp. Secondary endpoints were to analyze the relation between PMF and ELIIp and to assess the post-EVAR AAA-evolution in the presence of ELIIp.
RESULTS: Between 2008 and 2010, 200 patients underwent EVAR to treat AAA electively. An ELIIp was detected in 35cases (17.5%) (AG). Twenty-seven patients (13.5%) were included in BG. An overall of 62 patients (GA+GB) were analyzed. The mean pre-operative AAA diameter and EPV were 58±11.6 mm and 5.5±1.8 mm, respectively. The mean TV and THV were 187±111.5 cc and 82±75 cc, respectively. The median %VR was 42.3%. ELIIp was correlated to EPV≥6 (χ2, p=.015) and %VR <40% (logistic regression, P=0.032). The mean follow-up was 22±9 months. Seven (20%) ELIIp spontaneously sealed and 6 (17%) required reinterventions (2 conversions to OR). There were not PMF associated to ELIIp evolution and AAA growth post-EVAR.
CONCLUSIONS: ELIIp is a not rare complication and it could require re-interventions. Our data suggest that VEP≥6 or %VT<40% are risk factors for ELIIp. No PMF was able to predict the ELIIp evolution. The relative high rate of re-interventions, could suggest the need of adjunctive/preventing primary procedures in patients at high-risk for ELIIp.


KEY WORDS: Aneurysm - Endovascular procedure - Endoleak - Risk factors

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Publication History

Issue published online: November 28, 2017
Article first published online: July 29, 2015
Manuscript accepted: July 27, 2015
Manuscript revised: July 16, 2015
Manuscript received: March 14, 2015

Per citare questo articolo

Gallitto E, Gargiulo M, Mascoli C, Freyrie A, De Matteis M, Serra C, et al. Persistent type II endoleak after EVAR: the predictive value of the AAA thrombus volume. J Cardiovasc Surg 2018;59:79-86. DOI: 10.23736/S0021-9509.16.08842-X

Corresponding author e-mail

enrico.gallitto@gmail.com