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电交替为较少见的心电图改变,是指在同一心律情况下发生P、QRS、T波整个波群的振幅及/或形态的交替性变化,或仅某个波或波段(如ST段)发生交替性改变。常见的类型为单纯性QRS波电交替(心室电交替),其次是T波电交替,而单纯性U波电交替极为罕见,现报告一例。患者女性,74岁。三天来头晕、头痛、胸闷、并呕吐三次,BP 180/100mmHg,服用复方降压片,既往血压不详。1986年8月18日上午九时突然神志不清来院急诊。查体:呈昏迷状态,两侧瞳孔等大,对光反应存在。颈软,BP 110/70mmHg。心界不大,心
Electric alternating for the less common ECG changes, refers to the same heart rhythm occurred P, QRS, T wave amplitude and / or morphology of the entire wave group alternating changes, or only a wave or band (such as the ST segment) Alternate changes occur. Common types of simple QRS wave alternating (alternating ventricular electricity), followed by T wave alternating, while the simple alternating U wave is extremely rare, a report is now reported. Patient female, 74 years old. Three days dizziness, headache, chest tightness, and vomiting three times, BP 180 / 100mmHg, take compound antihypertensive tablets, previous blood pressure is unknown. At 18:00 on August 18, 1986, suddenly unconscious came to the emergency room. Physical examination: was unconscious, pupils and other large on both sides, the presence of light response. Neck soft, BP 110 / 70mmHg. Little heart, heart