Recent research suggests that patients suffering from severe heart attacks may have much higher levels of micro- and nanoplastics in their blood than those with more stable heart conditions. This study, conducted by Italian researchers, analyzed blood samples from 61 patients undergoing angiograms to check for irregularities in their blood vessels.
The findings revealed that about 84% of patients experiencing an active and severe heart attack showed detectable plastics in their blood. On the other hand, microplastics were found in just 40% of individuals with chronic heart disease, and only 32% of those with normal coronary arteries.
This study was led by Dr. Raffaele Marfella from the University of Campania Luigi Vanvitelli in Naples and was published in the European Heart Journal. Notably, polyethylene, a common plastic material, was found in 97% of patients who tested positive for these particles.
Michelle Routhenstein, a preventive cardiology dietitian, pointed out that this research contributes to a growing body of evidence regarding the possible association between microplastics and heart disease. However, she cautioned that it’s essential to view these findings within the wider context of environmental health risks.
While the study’s results are intriguing and highlight the need to consider environmental influences that may lead to inflammation and injury to blood vessels, Routhenstein emphasized that the research does not definitively establish that plastics cause heart attacks. Previous studies have also shown the presence of microplastics in arterial plaque, but, again, this research has limitations.
This observational study can only reflect correlations rather than causations, and the relatively small sample size from a single country limits the applicability of its results to a broader population. Additionally, lifestyle factors like smoking were identified as strong predictors of detectable plastic particles in the blood, complicating the interpretation of the data.
Routhenstein highlighted that elements such as smoking and air pollution are also linked to cardiovascular issues, making it challenging to isolate the specific impacts of microplastics on heart health.
To potentially reduce exposure to microplastics, Routhenstein advised looking for ways to limit contact with these particles. For instance, she suggested switching from plastic food storage containers to glass ones and using glass or ceramic containers for heating food. Simple changes, like these, could be part of fostering a heart-healthy lifestyle.
