PHILADELPHIA—Stents and coronary artery bypass surgery are no more effective than intensive drug treatment and better health habits in preventing millions of Americans from heart attacks and death, a large study found, shedding new light on a major controversy in cardiology. Researchers and doctors have fiercely debated for years how best to treat people who have narrowed coronary arteries but aren’t suffering acute symptoms.

Source: Wall Street Journal November 16, 2019 19:17 UTC