Borderline Abnormal ECG: What Disease Is It?
Disease description:
My friend has drug-induced hyperthyroidism, but she doesn't want to undergo treatment. What condition could cause borderline abnormal ECG findings?
Doctor's answer (1)
Dr. Wang Xin
Critical abnormal ECG usually refers to ECG results that fall in a borderline state between normal and abnormal, possibly indicating underlying cardiac problems but not sufficient to make an immediate diagnosis of a specific disease. This condition may be caused by various factors:
1. Physiological factors: Long-term sleep deprivation, excessive fatigue, strenuous exercise, or dramatic emotional fluctuations can all lead to borderline ECG abnormalities.
2. Disease-related factors: Conditions such as hypokalemia, myocarditis, and myocardial ischemia may also cause borderline ECG abnormalities. For example, hypokalemia may be caused by prolonged dieting or picky eating, leading to symptoms such as muscle weakness and arrhythmias; while myocardial ischemia may be associated with long-term smoking, alcohol abuse, or high-fat diets, causing coronary artery stenosis and affecting myocardial blood and oxygen supply. For these patients, a comprehensive evaluation is typically conducted combining clinical symptoms, physical signs, and other test results (such as cardiac ultrasound and blood tests). Ambulatory ECG monitoring or stress tests may be performed when necessary to determine whether further treatment or follow-up observation is required.
