What is it about?
Having good heart rate control is vital for high-quality CT scans of the heart. Better heart rate control means clearer pictures (so more accurate diagnosis) and less x-ray exposure (less radiation) for patients. Most centres use beta-blockers to help slow the heart down before heart CT scans. We use injectable beta-blockers which act quickly, but the recommended doses of these drugs are low. We have shown that using much bigger doses is very safe.
Why is it important?
As discussed, slower heart rates mean better quality pictures with less radiation (x-ray) exposure to the patient. If we can give more beta-blocker, safely, to patients coming for heart CT scans, more patients will get better quality scans with less radiation.
Read the Original
This page is a summary of: Safety of intravenous β-adrenoceptor blockers for computed tomographic coronary angiography, British Journal of Clinical Pharmacology, February 2015, Wiley, DOI: 10.1111/bcp.12516.
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