The study's authors hope their work can help high-risk patients receive the care they need. 

One researcher described the findings, presented at the Heart Failure Society of America's Annual Scientific Meeting, as "great news for patients and clinicians."

Experts think these new findings could ramp up the development of optimal revascularization strategies.

Delayed PDL was identified in more than 10% of patients undergoing the procedure. 

Researchers tracked data from 25,948 adults over the age of 71.

To limit any potential bias, the study's authors explored data from two different sources. 

The American College of Cardiology and Society for Cardiovascular Angiography (SCAI) and Interventions are just two of the medical societies concerned about this proposal. 

Researchers tracked data from 500 participants who completed a web-based evaluation in their home.

Each company is believed to be in violation of the Federal Food, Drug and Cosmetic Act. They have 15 working days to respond. 

More research is still needed to find out why these differences exist, but the authors did offer some possible explanations.