Myocardial infarction has characteristics of numbness in the hands and feet

  Almost everyone has experienced numbness in their hands and feet in their lives. For example, when the ulnar nerve behind the elbow (commonly known as anesthesia) is stretched and compressed, it will produce obvious numbness; another example is the nerve root of cervical spondylosis and lumbar disease. Compression can also cause numbness in the hands and feet; another example is the early typical symptoms of peripheral neuropathy in diabetic patients, which are also numbness in the hands and feet, but they start from the distal end and develop symmetrically. But we need to be vigilant, some numbness of hands and feet may be the first symptom of certain fatal diseases, such as myocardial infarction.
  A common symptom of myocardial infarction is severe squeezing pain in the back of the sternum or in the front of the heart, which lasts for more than 20 minutes, and can radiate to the left upper arm, lower jaw, neck, shoulder and back. It is often accompanied by symptoms such as nausea, vomiting, sweating, and difficulty breathing. . But there are also many atypical symptoms of myocardial infarction, such as numbness of hands and feet. Numbness in the hands and feet can be an early signal of myocardial infarction. The reason is that patients with myocardial infarction often have multiple cardiovascular risk factors (hypertension, dyslipidemia, diabetes, smoking, etc.) that cause systemic arteriosclerosis, narrowing of blood vessels, and extremities. Blood flow is affected, which leads to numbness in the hands and feet; when a myocardial infarction occurs, the sympathetic nervous system is extremely excited, which can cause spasms of small arteries throughout the body, and induce or aggravate numbness in the hands and feet. Other scholars believe that the numbness of the hands and feet of myocardial infarction is related to the innervation, especially the numbness in the left shoulder, the inner left upper arm and the left hand. Because the nerves in these parts are innervated by the same segment of the spinal nerve, when myocardial ischemia or hypoxia occurs , The acidic substances and polypeptides such as lactic acid, pyruvate, phosphoric acid, etc. will stimulate nerves to produce pain, and spread to the sensory nerves of the left shoulder, upper arm and hand, and induce numbness or pain.
  If numbness of hands and feet occurs repeatedly in daily life, it is necessary to go to the hospital to find a professional doctor as soon as possible to improve the risk factor assessment and the risk assessment of cardiovascular events. If there are corresponding risk factors, they should be actively controlled (quit smoking and alcohol, reduce salt intake, avoid high-fat diet, control blood pressure and blood sugar, exercise, weight control, etc.) to reduce the occurrence of acute cardiovascular and cerebrovascular events (myocardial infarction, sudden death, Cerebral infarction, cerebral hemorrhage, etc.); if you have hypertension, diabetes, dyslipidemia and other diseases, you should see a doctor as soon as possible.
  If the numbness is biased to the left upper limb, accompanied by persistent chest pain, as well as symptoms such as nausea, vomiting, sweating, and difficulty breathing, it is very likely that a myocardial infarction has occurred. Call 120 as soon as possible to confirm the diagnosis as soon as possible. Revascularization. You know, time is the heart muscle and time is life!