I am most afraid of delaying my illness and delaying treatment when I am sick. The sooner heart problems are detected, the better. There are often patients who go to the wrong department and register the wrong number because they don't understand their condition, and they go around a lot before finding out that it is a heart problem. Why is left jaw pain or toothache a manifestation of myocardial infarction? Because it's a referred pain!
When some internal organs (such as the heart) are diseased, hyperesthesia or pain occurs in a certain area of the body surface, which is called referred pain. It is a type of pain in which the patient feels a distinct pain somewhere on the surface of the body that is not actually damaged. This is because the affected visceral nerve fibers (such as the heart) and the nerve fibers somewhere on the body surface converge in the same spinal cord segment, and the afferent nerve fibers from the viscera will not only reflect visceral pain through the spinal cord to the cerebral cortex, but also affect the same spinal cord. The body surface nerve fibers of the segment conduct and spread to the corresponding body surface parts.
Because the nerves of the throat, mandible, and heart are innervated by the same segment of spinal nerves, when myocardial ischemia and hypoxia occur, acidic substances such as lactic acid, pyruvic acid, and phosphoric acid and polypeptide substances produced will stimulate the nerves to cause pain and cause pain. The vagus nerve spreads to the pharynx, causing throat or jaw pain symptoms. In fact, this is the body's misrecognition of information.
Pain associated with myocardial ischemia may manifest as neck, jaw, or even dental pain, especially neck, jaw, or dental pain associated with exercise. These parts do not hurt in a static state, but they hurt when you move, or the pain persists, accompanied by dizziness, cold sweats and other symptoms, then it is likely to be acute myocardial infarction.
This kind of toothache cannot be relieved by painkillers or anti-inflammatory drugs, and most of them do not have symptoms of dental diseases such as red and swollen gums.
Patients with toothache caused by myocardial ischemia often find myocardial ischemia in surface electrocardiogram examination, but patients with simple toothache do not have ischemia on electrocardiogram.
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