ArticleJournal of geriatric cardiology : JGC2014
Safety and efficacy of intravenous esmolol before prospective electrocardiogram-triggered high-pitch spiral acquisition for computed tomography coronary angiography.
Article in Journal of geriatric cardiology : JGC, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
backgroundIn order to acquire a high quality image with a low radiation dose, prospective electrocardiogram (ECG)-triggered computed tomography coronary angiography (CTCA) requires a stable heart rate (HR) < 65 beats/min. Esmolol has the advantage of reducing HR. The objective of this article is to assess the value of intravenous esmolol treatment before prospective ECG-triggered high-pitch spiral acquisition for CTCA.
methodsFrom March 2013 to June 2013, 313 patients underwent prospective ECG-triggered CTCA. Two hundred and thirty two of them received esmolol before angiography. We retrospectively analyzed clinical characteristics, esmolol dose, radiation exposure dose, and the change in HR and blood pressure in these 232 patients.
resultsA total of 232 patients with a HR > 65 beats/min before CTCA examination received intravenous esmolol treatment (mean dose of 57.26 ± 15.39 mg). The mean initial HR (HR1), slowest HR (HR2), and the HR 30 min after HR2 (HR3) were 75.06 ± 5.59, 60.75 ± 4.00, and 75.54 ± 5.96 beats/min, respectively (HR1 vs. HR2, P < 0.0001; HR1 vs. HR3, P = 0.377). The mean time from esmolol administration to HR2 was 24.25 ± 4.97 s and the mean effective radiation dose was 2.28 ± 0.02 mSv.
conclusionsHR could be rapidly controlled at an optimum level with intravenous esmolol before prospective ECG-triggered high-pitch spiral acquisition for CTCA. Consequently, the patients received a very low radiation dose.
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