The causes of low voltage in limb leads of ECG include cardiomyopathy, emphysema, body obesity, etc. It is recommended to improve the condition through general treatment, medication and surgery.
1. Cardiomyopathy: The etiology of cardiomyopathy is complicated, which may be related to genetics, infection, endocrine abnormality, which will lead to the decrease of myocardial contraction ability, and then lead to low voltage in limb leads.
For this condition, it is recommended to maintain a low-salt, low-fat diet, control water intake, and eliminate intense exercise. Secondly, follow the doctor’s instructions and use drugs such as metoprolol and hydrochlorothiazide to relieve the adverse symptoms and improve myocardial diastolic function.
2. Emphysema: when the bronchial tubes have ventilation dysfunction, air will be retained in the alveoli, so that the internal pressure gradually increases, inducing emphysema, and low voltage in the limb leads.
In life, quit smoking and stay away from environments with serious air pollution. Secondly, if symptoms such as shortness of breath and cough occur, they can be relieved with drugs such as salbutamol and tiotropium bromide. If necessary, salmeterol plus fluticasone can be used in combination. For patients with severe emphysema, surgery can be considered to slow down the disease, common surgical lung reduction surgery, lung transplantation and so on.
3. Obesity: Obesity easily leads to increased conduction resistance, which in turn shows low voltage in the limb leads. Generally do not need special treatment, can through scientific care to reduce weight, eliminate adverse symptoms. For example, eat less fat-rich food in the diet, and strengthen physical exercise to improve physical fitness.
There are many reasons for low voltage in the limb leads of the ECG, and if you experience any discomfort, you should seek medical attention immediately without delay.