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Important: VAERS reports alone cannot determine if a vaccine caused an adverse event. Reports may contain incomplete, inaccurate, or unverified information. Correlation does not equal causation.

Cardiac monitoring

2,126 total reports31.5% serious outcomes

Cardiac monitoring appears in 2,126 VAERS reports across all vaccines. Of these, 14 reports also mentioned death and 655 involved hospitalization. The severity rate (deaths + hospitalizations as a percentage of reports) is 31.5%. The top vaccines associated with this symptom are COVID-19, COVID-19 (Bivalent), Flu (Trivalent). Remember: VAERS reports show temporal association, not causation.

2,126

Total Reports

Deaths

655

Hospitalizations

31.5

Severity Rate

% serious outcomes

About Cardiac monitoring Reports

Cardiac monitoring has been reported 2,126 times in VAERS from 1990 to 2026.

Of these reports, 14 were associated with death (0.66%) and 655 involved hospitalization.

The overall serious outcome rate (death or hospitalization) for reports mentioning Cardiac monitoring is 31.5%.

Understanding Cardiac monitoring in VAERS

•Temporal association only: These reports show Cardiac monitoring occurred after vaccination, not necessarily because of vaccination.

•Background rates matter: Many symptoms occur naturally at baseline rates in the population, unrelated to vaccination.

•Reporting variability: Medical terminology may be used differently by various healthcare providers and over time.

•Investigation needed: High-frequency reports may trigger further epidemiological studies to determine causation.

What This Data Shows

Most Associated Vaccines: The vaccines most frequently mentioned in reports with Cardiac monitoring. This may reflect usage patterns, not causation.

Severity Patterns: The percentage of reports that involve serious outcomes can help prioritize safety investigations.

Reporting Trends: Changes in reporting frequency over time may reflect increased awareness, media attention, or actual safety signals.