Evaluation of Contraindications and Efficacy of Oral Beta Blockade Before Computed Tomographic Coronary Angiography
February 7th, 2010 Posted by: admin
Publication year: 2010
Source: The American Journal of Cardiology, In Press, Corrected Proof, Available online 5 February 2010
Fleur R., de Graaf , Joanne D., Schuijf , Joëlla E., van Velzen , Lucia J., Kroft , Albert de, Roos , …
Multidetector computed tomographic coronary angiography (CTA) image quality is inversely related to the heart rate (HR). As a result beta-blocking medication is routinely administered before investigation. In the present study, the use, contraindications, and efficacy of prescan beta blockade with regard to HR reduction and CTA image quality were assessed. In 537 patients referred for CTA, the baseline HR and blood pressure were measured on arrival, and contraindications for beta blockade were noted. Unless contraindicated, a single dose of metoprolol was administered orally 1 hour before data acquisition in patients with a HR of ≥65 beats/min according to a predefined…
