COVID-19 related topics by far out-paced all other topics in cardiology in 2020 on the DAIC website. Several stories topped the list related to the cardiovascular issues with hydroxychloroquine being used as a treatment for the virus. Top new device technologies in 2020 included European approval of the Abbott Tendyne transcatheter mitral valve, FDA approval of Medtronic's new Micra AV pill-sized pacemaker, and FDA clearance of the first drug-eluting stent with short-duration dual-antiplatelet therapy (DAPT).
Here are the top 25 best performing articles on the Diagnostic and Interventional Cardiology (DAIC) website from 2020. This is based on the analytics of DAIC's record 3.3 million pagesviews in 2020:
1. Kawasaki-like Inflammatory Disease Affects Children With COVID-19
2. COVID-19 Hydroxychloroquine Treatment Brings Prolonged QT Arrhythmia Issues
3. ESC Council on Hypertension Says ACE-I and ARBs Do Not Increase COVID-19 Mortality
4. The Cardiac Implications of Novel Coronavirus
5. FDA Approves ECMO to Treat COVID-19 Patients
6. World's First Transcatheter Mitral Valve Approved in Europe
7. New Guidelines for Stress Echocardiography in Ischemic Heart Disease
8. First Large-scale U.S. Study on Hydroxychloroquine COVID-19 Prophylaxis Begins in Detroit
9. ACC COVID-19 Clinical Guidance For the Cardiovascular Care Team
10. FDA Reports of Deaths and Injuries From Use of Antimalarial hydroxychloroquine in COVID-19 Patients
11. 8 Cardiovascular Technologies to Watch in 2020
12. FDA Clears Medtronic Micra AV to Treat AV Block
13. ACC 2020 Late-breaking Presentations
14. Abbott Recalls Two Coronary Balloon Catheters That May Not Deflate
15. New Heart Failure Devices and Drugs to Treat Heart Failure
16. Italian Cardiologist Maurizio Galderisi Died From COVID-19
17. ASE Guidelines for the Protection of Echocardiography Providers During the COVID-19 Outbreak
18. CMS Calls For Postponing All Elective Cardiac Tests and Procedures to Aid COVID-19 Containment
19. COVID-19 Genetic PCR Tests Give False Negative Results if Used Too Early
20. ISCHEMIA Trial Results Find Interventions for Stable Heart Disease No better Than Drug Therapy
21. Image Gallery Showing Impact of the COVID-19 Pandemic
23. A Double-Edged Sword: How Over-the-Counter ECG Devices are Impacting Cardiac Care
24. AI Tool Allows Automated ECG Interpretation for Cardiac Diagnostics
25. Medtronic Resolute Onyx Drug Eluting Stent First to Receive One-Month DAPT Indication
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November 14, 2025 
