DEAR DR. GOTT: I am 84 years old and have carotid-artery disease. I had an endarterectomy on the right side of my neck. My doctor checks the left side by ultrasound every three months. Right now, the blockage is borderline, but I am told that more surgery will be necessary if it worsens. Is there any way to clear the other carotid artery without having more surgery?

DEAR READER: When fat and plaque build up in the carotid arteries, the condition is known as carotid-artery disease. These buildups cause the arteries to become narrower. Over time, the narrowing may cause too little bl...

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