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By Marilynn Marchione The Associated Press

Heart drugs during breast cancer treatment may help women avoid cardiac problems, study finds

ORLANDO, Fla. Many cancer treatments have a dark side — they can damage the heart. New research suggests this risk might be lowered in women with breast tumors if they take a heart drug as a preventive measure during their cancer care.

Knee replacement surgery gives more pain relief, but other options also help, study finds

People with knees worn out by arthritis will get more pain relief from joint replacement surgery, but it has more risks and there’s a good chance that less drastic approaches also would help. That’s the bottom line from the first study to strictly test other treatments against knee replacement, an operation done hundreds of thousands of times a year in the U.S.