Abstract
Endovascular sealing with the Nellix® endoprosthesis (EVAS) is a new technique to treat infrarenal abdominal aortic aneurysms. We describe the use of endovascular sealing in conjunction with chimney stents for the renal arteries (chEVAS) in two patients, one with a refractory type Ia endoleak and an expanding aneurysm, and one with a large juxtarenal aneurysm unsuitable for fenestrated endovascular repair (EVAR). Both aneurysms were successfully excluded. Our report confirms the utility of chEVAS in challenging cases, where suprarenal seal is necessary. We suggest that, due to lack of knowledge on its durability, chEVAS should only been considered when more conventional treatment modalities (open repair and fenestrated EVAR) are deemed difficult or unfeasible.
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FT and RKF received proctorship fees from Endologix. FT and TYC received educational grants from Endologix. The authors declare no other conflict of interest.
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All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
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Informed consent was obtained from all individual participants included in the study.
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Torella, F., Chan, T.Y., Shaikh, U. et al. ChEVAS: Combining Suprarenal EVAS with Chimney Technique. Cardiovasc Intervent Radiol 38, 1294–1298 (2015). https://doi.org/10.1007/s00270-015-1189-x
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DOI: https://doi.org/10.1007/s00270-015-1189-x