Abdelmoneim Sahar S, Moustafa Sherif, Mookadam Farouk
Mayo Cardiovascular Ultrasound Imaging and Hemodynamic Laboratory, Division of Cardiovascular Diseases and Internal Medicine, Mayo Clinic, Rochester, MN, USA.
Europace. 2008 Apr;10(4):482-5. doi: 10.1093/europace/eun062. Epub 2008 Mar 13.
Postural tachycardia syndrome (POTS) is characterized by the presence of orthostatic tachycardia in the absence of orthostatic hypotension with a heart rate increase of >or=30 bpm. Patients often relate complaints of palpitations, exercise intolerance, fatigue and near-syncope or syncope, other non-specific symptoms such as headache and nausea may be present as well to varying degrees. Myocardial bridging is rare occurring in 0.5-16% in angiographic studies. Clinical presentation is protean and can manifest as atrioventricular blockade, ventricular tachycardia, myocardial ischaemia, sudden cardiac death, and myocardial infarction. However, the majority of patients with myocardial bridging are asymptomatic. We describe a case of POTS syndrome and myocardial bridging co-existing and presenting a therapeutic challenge.
体位性心动过速综合征（POTS）的特征是在没有体位性低血压的情况下出现体位性心动过速，心率增加≥30次/分钟。患者常诉说有心悸、运动不耐受、疲劳以及接近晕厥或晕厥等症状，还可能不同程度地出现其他非特异性症状，如头痛和恶心。心肌桥在血管造影研究中的发生率为0.5% - 16%，较为罕见。其临床表现多样，可表现为房室传导阻滞、室性心动过速、心肌缺血、心源性猝死和心肌梗死。然而，大多数心肌桥患者无症状。我们描述了一例POTS综合征与心肌桥并存且带来治疗挑战的病例。
