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Boston Scientific’s Study at Heart Meeting Under Review

Boston Scientific Corp.’s study of a heart device to reduce stroke risk, slated for presentation at a medical heart meeting this weekend, is under review after the company said only limited data about the product’s safety would be released.

The company said it planned to present the results of the “acute procedural safety” at the American College of Cardiology meeting this weekend in San Francisco. The device is used to seal off a reservoir in the upper chamber of the heart that allows blood to pool and form potentially devastating clots that can trigger strokes. The study was designed to see whether the product, known as the Watchman, could prevent strokes.