How is the Rotablator best described?

How is the Rotablator best described?

• A. Laser-based atherectomy device
• B. Rotational atherectomy device
• C. Orbital atherectomy device
• D. Balloon angioplasty catheter

Answer: (B)

The Rotablator is best described as a rotational atherectomy device. It uses a diamond-coated burr that spins at very high speed inside the artery to shave away calcified plaque while sparing softer, noncalcified tissue. This rotation provides a “cutting” action that debulks heavy calcification, making subsequent balloon dilation and stenting easier and safer. The system relies on saline irrigation to cool the burr and clear debris, with small calcium fragments usually passing distally. This differs from other approaches: laser-based atherectomy uses light energy to vaporize tissue, not a moving burr; orbital atherectomy uses an eccentrically mounted crown that orbits around the lumen to sand the plaque, rather than a concentric rotating burr; and balloon angioplasty catheter simply dilates the vessel without removing or changing the plaque.

The Rotablator is best described as a rotational atherectomy device. It uses a diamond-coated burr that spins at very high speed inside the artery to shave away calcified plaque while sparing softer, noncalcified tissue. This rotation provides a “cutting” action that debulks heavy calcification, making subsequent balloon dilation and stenting easier and safer. The system relies on saline irrigation to cool the burr and clear debris, with small calcium fragments usually passing distally.

This differs from other approaches: laser-based atherectomy uses light energy to vaporize tissue, not a moving burr; orbital atherectomy uses an eccentrically mounted crown that orbits around the lumen to sand the plaque, rather than a concentric rotating burr; and balloon angioplasty catheter simply dilates the vessel without removing or changing the plaque.