Examination of exercise stress echocardiography in pacemaker-dependent patients with absolute chronotropic incompetence / 中华超声影像学杂志

ABSTRACT

Objective　To evaluate the diagnositic value of exercise stress echocardiography (ESE) in patients with pacemaker-dependnet.Methods　Forty-six patients remained pacemaker dependent with a fixed heart rate throughout ESE and coronary angiographic studies.Results　Thirty-four of 46 patients completed the ESE. Coronary artery disease was confirmed in 28 of 34 who had coronary angiograms. ESE had a sensitivity of 75% and specificity of 83% in pacemaker-dependent patients.Conclusions　ESE has preserved diagnostic utility in pacemaker dependent patients with absolute chronotropic incompetence.