Hepner A M, Bach D S, Armstrong W F
Division of Cardiology, University of Michigan, Ann Arbor 48109-0119, USA.
Am J Cardiol. 1997 Feb 1;79(3):365-6. doi: 10.1016/s0002-9149(96)00764-3.
Analysis of heart rate responses in 130 patients undergoing dobutamine stress echocardiography revealed that heart rate response at 20 microg/kg/min predicted the eventual need for atropine in chronotropically incompetent patients. Administering atropine at intermediate doses of dobutamine rather than at peak stress may reduce test duration and provide a more balanced chronotropic and inotropic stress.
对130例接受多巴酚丁胺负荷超声心动图检查的患者的心率反应进行分析后发现，在变时功能不全的患者中，以20微克/千克/分钟的剂量给予多巴酚丁胺时的心率反应可预测最终是否需要使用阿托品。在多巴酚丁胺中等剂量而非峰值负荷时给予阿托品，可能会缩短检查时间，并提供更均衡的变时性和变力性负荷。
