Elective Carotid Artery Stenting with Distal Protection Filter Device (Filter WireTM)

- Operator : Richard R. Heuser

Elective Carotid Artery Stenting with Distal Protection Filter Device
(Filter WireTM)
- Operator: Richard R. Heuser, MD, Woo-Yeong Cheong, MD

A 55 year-old man had a complaint of dizziness for 6 months. He had hypertension, diabetes mellitus, and smoking as coronary risk factors. Duplex Doppler study showed significant narrowing of the left internal carotid artery (ICA) and right proximal ICA. He had taken a carotid angioplasty with Wall stent (7.0x40mm) 1 week before this procedure. Pre-intervention carotid angiography revealed 70% stenosis of the proximal right ICA and a wall stent in-situ in the left ICA previously implanted (Figure 1).

An 8 F sheath was inserted through right femoral artery. Selective cannulation of the right common carotid artery (CCA) was performed using a 5F Headhunter catheter. After cannulation, a 0.035 inch stiff wire was inserted into the external carotid artery. An 8 F 90 cm shuttle catheter was introduced into right common carotid artery (Figure 2) after exchange with 6 F sheath. A 0.014 choice wire was inserted into the right ICA and a Filter wire ExTM was introduced along the choice wire into the right ICA and deployed (Figure 3, arrow). The choice wire was removed and a Power flex balloon (4.0x20mm) was positioned and inflated to 4.09mm (12 atm) for predilation of the lesion (Figure 4). Then, a self-expanding carotid Wall stent (7.0x50mm) was positioned and deployed from the right CCA to the ICA (Figure 5). Following angiogram revealed residual narrowing (Figure 6) and additional ballooning was performed using a Power flex balloon (5.0x20mm) to 5.0mm (10atm) (Figure 7). The Filter wire ExTM was removed and the final angiogram showed minimal residual narrowing (Figure 8). The hospital course was uneventful.

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