JAMA Editors' Summary Radiation From CAD Diagnostic Imaging, HBV Newborn Vaccination Rates, Trends in Organ Donation, and more
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Feb 27, 2026 Global differences in radiation doses from cardiac imaging and rising trends in donation after circulatory death. Shifts in newborn hepatitis B vaccination rates and evolving U.S. organ donation policies. New reimbursement ideas to align care with population health. Debates over SNAP restrictions and practical bedside approaches to assess intravascular volume overload.
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Wide Global Variation In Cardiac Imaging Radiation
- Radiation doses for noninvasive coronary artery testing vary widely worldwide and often exceed guideline recommendations.
- Study of 742 centers in 101 countries found 21% of nuclear cardiology and 44% of coronary CT patients received doses above recommended levels, highlighting protocol and equipment gaps.
Newborn Hepatitis B Vaccination Rose Then Declined
- Newborn hepatitis B vaccination rates rose from 67.5% in January 2017 to 83.5% in February 2023 then declined to 73.2% by August 2025.
- This trend shows initial improvement followed by recent backsliding, signaling need to investigate causes of the decline in 2023–2025.
Donation After Circulatory Death Expanded Dramatically
- Donation after circulatory death (DCD) expanded massively in the US from 118 donors in 2000 to 8,129 in 2025.
- DCD grew from ~2% to ~49% of all donors per Organ Procurement and Transplantation Network data, reshaping the donor pool.