Emboli-catching "umbrella" protects high-risk patients.
D000800:Angioplasty, Balloon / Q000009:adverse effects; D002340:Carotid Artery Diseases / Q000601:surgery* / Q000628:therapy; D005374:Filtration / Q000295:instrumentation; D006801:Humans; D011183:Postoperative Complications / Q000517:prevention & control; D019736:Prostheses and Implants; D016032:Randomized Controlled Trials as Topic; D015607:Stents / Q000009:adverse effects