Acute Coronary Syndromes Part 1

04/20/24 • 20 min

Cardio Buzz

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Plastics in our hearts

Microplastics are small pieces of plastic less than five millimeters in size that result from the degradation of larger plastic items. Derived from synthetic materials such as polyethylene and polyvinyl chloride, plastics are known for their durability and low cost but pose significant environmental and health risks due to their inability to biodegrade. Microplastics, including even smaller nanoplastics, are found everywhere - in our food, water, air, and even within the human body, where they can be ingested, inhaled, or absorbed through the skin. Italian researchers published their work in March 2024, found microplastics in the atherosclerotic plaques of patients with carotid artery stenosis. This presence of micro and nanoplastics was associated with higher levels of inflammation and an increased risk of heart attacks and strokes. While this finding indicates a correlation rather than causation, it raises concerns about the potential health impacts of microplastics. We provide practical advice on minimizing exposure to microplastics, such as avoiding single-use plastics, choosing products with minimal or no plastic packaging, and opting for natural fibers over synthetic ones.

00:00 Introduction to Plastics: Types and Properties

00:26 The Environmental and Health Impact of Microplastics

01:39 Investigating Microplastics in Human Arteries: A Groundbreaking Study

02:25 Study Findings: Microplastics in Atherosclerotic Plaques

03:12 Implications of the Study: Association vs. Causation

03:44 Practical Steps to Minimize Microplastic Exposure

04:47 Conclusion: The Challenge of Avoiding Microplastics

Next Episode

"From Beetroot to Breakthrough: Dr. Daniel Jones’ Findings on Preventing Contrast Nephropathy"

In this episode of Cardio Buzz, host and guest Dr. Daniel Jones discuss contrast nephropathy, a kidney injury caused by contrast agents used in medical imaging, and a promising intervention to reduce its incidence. Dr. Jones explains that inorganic nitrates, which are naturally found in green leafy vegetables, have shown significant potential in preventing contrast-induced nephropathy and associated acute kidney injuries in a recent study. This study involved 640 high-risk patients and demonstrated that inorganic nitrates reduced kidney injuries by 60% and improved long-term cardiovascular outcomes. The episode concludes with a conversation about the practical implications and future research plans for this intervention.