Washington - A disappearing medical implant will get a closer look from the Food and Drug Administration this week.

The FDA meets on Tuesday to review Abbott Laboratories’ first-of-a-kind heart stent that dissolves into the body after helping to clear fat-clogged arteries.

Abbott has asked the agency to approve its Absorb stent as an alternative to permanent, metal implants that have long been used to treat narrowing arteries that can lead to heart attack and death.

But regulators have questions about the safety and effectiveness of the experimental device. In a review posted late last week, FDA scientists noted that rates of cardiovascular complications were actually slightly higher with Absorb than with older stents tested in a company study. Additionally, complications were more likely to occur when Absorb was implanted into smaller arteries.... Read More: VIN