心脏起搏负荷超声试验是诊断冠状动脉疾病的一种无创方法,包括经食管起搏负荷超声和永久起搏器负荷超声。因为其直接提高心率而增加心脏负荷,不依赖于运动和药物的干预,故其扩大了负荷试验的适应症,并且有较高的安全性和可行性。其中近年发展起来的永久起搏器负荷超声,已被证实敏感性和特异性均较高,有望成为置入永久起搏器人群的一线负荷试验。 Cardiac Pacing Loads Ultrasound testing is a noninvasive method of diagnosing coronary artery disease, including transesophageal pacing stress ultrasound and permanent pacemaker stress ultrasound. Because of its direct increase in heart rate and increase heart load, independent of exercise and drug intervention, it expanded the indications of load test, and has high safety and feasibility. Among them, the development of permanent pacemaker load ultrasound in recent years has been confirmed that the sensitivity and specificity are high, is expected to become a first-line load test into the permanent pacemaker population.