Heart Rhythm Service and Sport Cardiology Section, Department of Cardiovascular Diseases, Mayo Clinic Hospital, Phoenix, AZ, United States of America.
Heart Rhythm Service and Sport Cardiology Section, Department of Cardiovascular Diseases, Mayo Clinic Hospital, Phoenix, AZ, United States of America.
J Electrocardiol. 2022 Jul-Aug;73:137-140. doi: 10.1016/j.jelectrocard.2019.10.007. Epub 2019 Oct 22.
A 73-year old male developed syncope during a bicycle race. Exercise stress testing demonstrated non-sustained ventricular tachycardia (NSVT) and ischemic changes. Coronary angiography revealed a 99% occluded right coronary artery which was stented; repeat stress testing demonstrated normal perfusion and NSVT. An electrophysiology study demonstrated left posterior fascicular ventricular tachycardia, which was ablated at two lower turnaround points. NSVT was observed during subsequent stress testing, prompting a repeat electrophysiology study. The inferoseptum and inferior wall were extensively ablated, along with a posteromedial papillary muscle premature ventricular complex. With no further demonstrable NSVT, the patient was cleared to return to competition.
一位 73 岁男性在自行车比赛中出现晕厥。运动应激试验显示非持续性室性心动过速(NSVT)和缺血性改变。冠状动脉造影显示右冠状动脉 99%闭塞,进行了支架置入;重复应激试验显示灌注正常和 NSVT。电生理研究显示左后间隔室性心动过速,在两个较低的折返点进行消融。随后的应激试验中观察到 NSVT,提示再次进行电生理研究。广泛消融下间隔和下壁,同时消融后内侧乳头肌室性早搏。在没有进一步显示 NSVT 后,患者获准返回比赛。