51.   The balloons, which are inserted into clogged arteries and inflated to clear the blockage, are used to help heart patients avoid bypass surgery.

52.   The clogged artery was reopened by an increasingly common procedure called balloon angioplasty.

53.   The balloon procedure was needed to clear clogged arteries to the heart, Melikian said.

54.   The decision came after Lasorda suffered a heart attack and underwent an angioplasty to clear a clogged artery.

55.   The device would be the biggest advance in stent technology since the tiny wire mesh tubes were first approved to prop open clogged arteries.

56.   The drug treats clogged arteries by reducing inflammation of the arterial lining and lowering cholesterol.

57.   The elderly woman needed someone to clear her clogged arteries, but there were no local surgeons to be had.

58.   The idea is to add genes near a clogged artery in the leg to get new blood vessels to grow around a blockage.

59.   The key issue in the medical device arena is the growing use of stents, the tiny metal tubes inserted into clogged arteries to prop the blood vessels open.

60.   The link between the protein and clogged arteries was independent of such variables as age, smoking, diabetes and high blood pressure, researchers said.