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女患,68岁,急性下后壁心肌梗塞一个月后,出现频发性心绞痛,主诉;心悸、憋闷,活动受限。心电图(附后);Ⅰ、Ⅱ、avF导联 Q 波异常,T Ⅰ、Ⅱ、avF、V_(3-5)对称性倒置,T V_(3-4)随呼吸运动里规律性改变,即吸气时浅倒,呼气时倒置并逐渐加深且伴 ST 段星下斜型压低,该心电图是在非心绞痛发作时,仰卧位平静呼吸状态下描记的。讨论:心电图的 T 波改变,原因多而复杂,并有功能性、病理性之别和继发性、原发性之分。心肌的复极作用与心肌的代谢有密切的关系,功能性 T 波改变主要见于精神因素,过度换气,体位改变,植物神经功能失调所致的心动过速、过缓及心律
Female, 68 years old, acute posterior wall myocardial infarction a month later, there was frequent angina, complaints; palpitations, oppressed, restricted activity. Electrocardiogram (attached); wave Q of Ⅰ, Ⅱ, avF leads abnormal, T Ⅰ, Ⅱ, avF, V 3-5 symmetry inversion, T V 3-4 (3-4) with regular changes in respiratory motion Inhaled shallow down, inverted and gradually deepening expiratory with ST-segment oblique type down, the ECG is in the non-angina attacks, supine calm breathing state tracing. Discussion: T wave changes in ECG, the reasons for more and more complex, and functional, pathological distinction and secondary, primary points. The repolarization effect of myocardium is closely related to the metabolism of myocardium. The functional T wave changes are mainly found in mental factors, hyperventilation, changes in body position, tachycardia caused by autonomic dysfunction, excessive relaxation of heart rhythm