Abstract:
BACKGROUND:Beta-blockers are used to control the heart rate prior to coronary computed tomography (CT) angiography. However, in-hospital administration is time-consuming, and it is hard to decrease the heart rate to <60 beats per minute (bpm) when the initial heart rate is increased. In this study, we examined whether the single administration of long-acting β-blocker at bedtime before angiography is effective for achieving the target heart rate. METHODS AND RESULTS:A total of 314 consecutive patients with a resting heart rate >60bpm who underwent coronary CT angiography were retrospectively collected. Either bisoprolol or atenolol was orally administered the night before to 166 patients (beta group), and no additional medication was administered to the other 148 patients (control group). When the heart rate was >60bpm on arrival, a β-blocker or verapamil was orally administered at the discretion of the physician. Although the baseline heart rate was not significantly different between the groups, the β-blocker treatment the night before significantly reduced the heart rate compared to control group upon arrival at the hospital and at the time of angiography. The rate of achievement of a heart rate ≤60bpm on arrival at the hospital was significantly higher in the beta group, and even after the additional treatment. CONCLUSIONS:Bedtime administration of a long-acting β-blocker the night before coronary CT angiography is an effective option to achieve the target heart rate at the time of examination.
journal_name
J Cardioljournal_title
Journal of cardiologyauthors
Sadamatsu K,Koide S,Nakano K,Yoshida Kdoi
10.1016/j.jjcc.2014.07.007subject
Has Abstractpub_date
2015-04-01 00:00:00pages
293-7issue
4eissn
0914-5087issn
1876-4738pii
S0914-5087(14)00212-3journal_volume
65pub_type
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