Shockwave intravascular lithotripsy in the treatment of under‐expanded coronary stent: Case Series

Figures

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  FIGURE 1. Basal angiogram. Diffuse in‐stent restenosis on the proximal segment of left anterior descending (arrow) and severe very calcified lesion on the mid part of the vessel (double arrow)

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  FIGURE 2. A, Stenting of both lesions with 2.75 × 40 mm SES, at 12 Atm (arrow). B, Incomplete stent expansion at level of the calcified lesion on mid LAD, during dilatation of 3.0 × 8 mm NC balloon inflated at 30 Atm (double arrow)

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  FIGURE 3. Complete stent expansion (arrow) during 3.5 × 12 mm Shockwave intravascular lithotripsy catheter dilatation at 6 Atm

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  FIGURE 4. Persistent good angiographic result at one‐month angiographic check (brackets)

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  FIGURE 5. Basal angiogram showing two critical tandem stenoses on distal right coronary artery; the proximal lesion (arrow) is related to an under‐expanded previously implanted stent. (StentViz image in the box)

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  FIGURE 6. Attempt of dilatation of the under‐expanded stent lesion using a 2.5 × 12 mm NC balloon inflated at 30 Atm, without any result (arrow)

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  FIGURE 7. Complete expansion (arrow) of 3.0 × 12 mm shockwave intravascular lithotripsy catheter, after the second cycle at 6 Atm

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  FIGURE 8. Final angiographic result. box A. StentViz application shows satisfactory stent expansion (asterisk indicate double layer of stent strut). box B. IVUS scan (frame position is pointed by thick arrow) shows complete stent expansion and apposition. Double and triple asterisks indicate double layer of stent strut