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Updated: Aug 19, 2026

Microsurgical Clip Obliteration of Middle Cerebral Aneurysm Using Intraoperative Flow Assessment
Published on: September 25, 2009
Case report of snaring-assisted TAVR under cerebral embolic protection: the "Chaperone" with "Top Hat" technique
Massimo Medda1, Francesco Casilli1, Marta Bande2
1Clinical and Interventional Cardiology Unit, Cardio-Thoracic Center, IRCCS Ospedale Galeazzi-Sant'Ambrogio, Gruppo San Donato, Milan, Italy.
Abstract:
Symptomatic severe aortic stenosis (AS) in patients with intermediate-to-high surgical risk is currently being treated with transcatheter aortic valve replacement (TAVR). We present a case of a TAVR in a severe calcific AS with porcelain aorta and 'gothic' aortic arch. Pre-operative thoraco-abdominal computed tomography angiography showed also severe calcification at the sinotubular junction with protruding huge calcified nodules extending in ascending aorta and multiple calcific stenosis of both iliac-femoral vessels, severely tortuous. The choice of the interventional access was not easy and the high risk of an acute intra-procedural brain event guided the procedural planning. To our knowledge, this is the first case of TAVR with complete cerebral protection with Triguard system device and 'snaring-assisted' valve advancement.

