Conclusions Left ventricular relaxation and distensibility are impaired in dilated or ischemic cardiomyopathy with MR and the impaired left ventricle diastolic function may be improved by dobutamine.

• 结论在扩张型或缺血性心肌病合并MR患者,左室舒张功能可存在异常,多巴酚丁胺能够改善这部分患者的左室舒张功能。