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Writer's pictureSaneka Chakravarty, MD, FACC

The unexpected connection between infection and heart disease.

Updated: Aug 8, 2023


In the realm of scientific understanding, a well-established truth emerges: the risk of a heart attack escalates in the wake of infections—both viral and bacterial. This connection bears a stronger link with chest infections, and the magnitude of risk correlates with the gravity of the ailment. Remarkably, the shadow of risk persists even after the grip of infection loosens its hold.

A harmonious duet of heart attacks and strokes takes center stage during the influenza season, a symphony of timing that transcends mere happenstance.

Within my cadre of patients—brave souls who have faced heart attacks and strokes—a recurring refrain echoes: the telltale exhaustion that preceded their life-altering ordeal. This fatigue is akin to a prelude of inflammation, a subtle yet crucial thread leading to the crescendo of a critical event.

Underneath the surface, a symphony of biological interactions unfolds. Inflammatory cells orchestrate the disruption of cholesterol plaques, enzymes within platelets and clots dance to a heightened rhythm induced by the infection, and viral influence stirs an amplified gene expression that nurtures the formation of clots.

Alas, this truth remains confined within the precincts of the medical realm. Annual influenza vaccination rates languish, especially among those under 65 in the United States and likely beyond its borders.

Yet, a realm of possibilities beckons:

Kindle awareness among friends and family, illuminating the path to informed choices.

Arm yourself with the shield of vaccination—both influenza and pneumococcal. These measures offer a 36% and 17% reduction, respectively, in the risk of cardiovascular events. The COVID-19 vaccine likely lends its protective mantle as well, though further insights await.

Embrace the mantle of guardianship over your heart and blood vessels. A proactive approach can quell the tide of preventable risk factors, fortifying the walls of your heart's sanctuary.

With gratitude to: https://www.nejm.org/doi/full/10.1056/NEJMra1808137, for illuminating this vital discourse.

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