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Erschienen in: CardioVascular and Interventional Radiology 10/2019

13.05.2019 | Clinical Investigation

Image Fusion Guidance for In Situ Laser Fenestration of Aortic Stent graft for Endovascular Repair of Complex Aortic Aneurysm: Feasibility, Efficacy and Overall Functional Success

verfasst von: Thomas Leger, Vania Tacher, Marek Majewski, Joseph Touma, Pascal Desgranges, Hicham Kobeiter

Erschienen in: CardioVascular and Interventional Radiology | Ausgabe 10/2019

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Abstract

Objective

To evaluate feasibility, efficacy and overall functional success of image fusion guidance during laser-assisted in situ fenestration of aortic stent graft (LISFAS) for endovascular repair of complex aortic aneurysm (complex-EVAR) in a prospective study.

Methods

Between September 2016 and July 2018, 20 patients were included and treated with LISFAS for complex-EVAR. Aortic aneurysms were either para-renal (n = 15) or thoraco-abdominal (n = 5) with 57 mm [first quartile: 54; third quartile: 68] median aneurysm diameter in 69 years [68;78] patients. All interventions were performed using the same angiographic system and 3D image fusion software for overlying pre-intervention CTA on per-intervention 2D fluoroscopy with cone-beam CT images to display target vessels ostia.

Results

LISFAS for complex-EVAR with image fusion was performed in all patients, and no endovascular intervention required conversion to an open aortic repair. LISFAS of all target vessels was feasible in 18 patients (90%); 48 fenestrations out of 50 were performed successfully. Two fenestrations failed for renal arteries in two patients. Median ischemic times were as follows: 34 min [25;43] for superior mesenteric artery; 69 min [56;83] for left renal artery; 73 min [36;102] for right renal artery; and 93 min [89;96] for the celiac trunk. Median intervention and fluoroscopy times, iodinated contrast volume and X-ray exposure were 180 min [150;180], 74 min [64;87], 80 mL [59;113] and 338 Gy.cm2 [259;495], respectively. Efficacy was found in 17 patients (85%) on one-week follow-up CTA: Two patients had type 1 and 3 endoleaks, respectively, that were successfully embolized. Overall functional success was 90%. Median hospitalization stay was 9 days [8, 17]. The 30-day safety analysis was 90% (n = 2 deaths) owing to an undetermined cause and to bowel ischemia after low flow in intensive care unit.

Conclusions

LISFAS using image fusion was feasible, efficient and overall functionally successful for complex-EVAR in this preliminary study.
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Metadaten
Titel
Image Fusion Guidance for In Situ Laser Fenestration of Aortic Stent graft for Endovascular Repair of Complex Aortic Aneurysm: Feasibility, Efficacy and Overall Functional Success
verfasst von
Thomas Leger
Vania Tacher
Marek Majewski
Joseph Touma
Pascal Desgranges
Hicham Kobeiter
Publikationsdatum
13.05.2019
Verlag
Springer US
Erschienen in
CardioVascular and Interventional Radiology / Ausgabe 10/2019
Print ISSN: 0174-1551
Elektronische ISSN: 1432-086X
DOI
https://doi.org/10.1007/s00270-019-02231-8

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