JOURNAL ARTICLE

Multiple periscope and chimney grafts to treat ruptured thoracoabdominal and pararenal aortic aneurysms

Felice Pecoraro, Thomas Pfammatter, Dieter Mayer, Thomas Frauenfelder, Dimitri Papadimitriou, Lukas Hechelhammer, Frank J Veith, Mario Lachat, Zoran Rancic
Journal of Endovascular Therapy 2011, 18 (5): 642-9
21992633

PURPOSE: To report midterm outcomes after urgent endovascular repair of ruptured pararenal or thoracoabdominal aortic aneurysms using multiple periscope and chimney grafts to preserve renovisceral branch perfusion and facilitate aneurysm exclusion.

METHODS: Nine consecutive men (mean age 72±14 years, range 40-88) presenting with ruptured thoracoabdominal (n = 6), pararenal (n = 2), or infrarenal (n = 1) aortic aneurysm underwent urgent endovascular repair with at least 1 periscope graft delivered via a transfemoral access; chimney grafts were installed from an axillary access. In all, 17 periscope and 7 chimney grafts were used to reperfuse 11 renal and 13 visceral arteries in the 9 patients. The aortic aneurysms were excluded using thoracic devices (n = 7), an aortic extension cuff (n = 1), and bifurcated stent-grafts (n = 2).

RESULTS: All procedures were completed without technical complications except for a dislocated stent-graft from the right renal artery; the artery could not be re-accessed, and the right kidney was sacrificed. One patient died of multiple organ failure (11% 30-day mortality). At a mean follow-up of 10 months (range 3-24), 5 of the 9 patients had recovered completely; 3 patients died of unrelated causes. Imaging showed no aneurysm growth in any patient, with a mean 20% shrinkage in aneurysm size. All periscope and chimney grafts remained patent, and no aortic stent-graft migration was observed. Renal function and the glomerular filtration rate remained stable in all patients.

CONCLUSION: The periscope and chimney graft technique provides a simpler, less invasive way to maintain blood flow to the renovisceral arteries during urgent endovascular aortic repairs. The very low 30-day mortality rate and the stability of the repairs in the midterm are encouraging. This technique has the potential to profoundly influence the treatment of acute aortic pathologies.

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