What does sinus rhythm t wave change mean

If the examination finds changes in the sinus rhythm T wave, then you should pay attention, because this may indicate insufficient blood supply to your myocardium or caused by coronary atherosclerosis. Therefore, you should adjust the treatment correctly according to the diagnosis results.

1. T wave changes usually indicate myocardial insufficiency. There are two reasons for myocardial insufficiency. One is organic stenosis caused by coronary atherosclerosis, which is common in older patients with hypertension and hypercholesterolemia. The other is spasmodic stenosis of the coronary artery, which is common in young people. The reasons are caused by stimuli such as smoking and drinking, and are often transient. Considering your symptoms, examination results (spiral CT) and age, transient coronary artery spasm is likely to be the cause.

2. It is recommended to have a re-examination. If it is normal, it objectively proves that you have coronary artery spasm and no organic lesions. If the results are the same as before, you can take oral coronary dilating drugs such as Xixintong, Diaoxinxuekang, nitroglycerin, etc. to relieve your symptoms.

3. T wave represents the potential change during late ventricular repolarization. Normal T waves are rounded and blunt, and the upper and lower limbs are asymmetric. Under normal circumstances, the direction of the T wave is generally consistent with the direction of the main wave of the QRS complex. In leads Ⅰ, Ⅱ, V4~V6, the T wave is upright, and aVR is inverted. Leads Ⅲ, aVL, aVF, and V1~V3 can be upright, bidirectional, or inverted. In leads dominated by R waves, the T wave is not lower than 1/10 of the R wave in the same lead. The T wave in the chest leads is sometimes as high as 1.2~1.5mV. A slight increase in the T wave has no clinical significance. If it is significantly increased, it can be seen in the early stages of myocardial infarction and hyperkalemia.

4. T waves are flat, bidirectional or inverted, which can be seen in left ventricular hypertrophy, typical angina pectoris, chronic coronary artery insufficiency, etc. In case of right ventricular hypertrophy, bidirectional and inverted T waves may also be seen. Variant angina pectoris is manifested by ST segment elevation, often accompanied by tall T waves; acute ischemic myocardial infarction is manifested by inverted T waves, which are usually sharp and deep, with symmetrical ascending and descending limbs; in the acute phase of myocardial infarction, the upright T wave can be seen evolving into an inverted and deepening posterior limb; in the subacute phase, the inverted T wave returns to normal or a constant inverted T wave, and so on.