Pre-excitation syndrome is summarized in a simple paragraph: some people are born with an extra “wire” in their heart, and there is a potential risk of “short circuit”. Patients usually have no symptoms, as if they were normal people, but they only show signs of “pre-excitation” when they have an electrocardiogram. However, due to the above-mentioned risk, the heart may suddenly short-circuit from time to time, resulting in tachycardia (heart rate often exceeding 150 beats per minute) and sudden onset of panic, heartbeat, chest tightness, chest pain, etc. (which may last from a few minutes to several hours, with varying severity of symptoms). When the “short circuit” is temporarily lifted (either by self-release or by medication), the tachycardia is terminated and the patient immediately resumes a normal heartbeat, feeling like a normal person again. However, the hidden danger still exists, and the next time the “short circuit” will occur again, thus repeatedly recurring the above performance. What is “one more” in the heart of a patient with pre-excitation syndrome? 1, the human heart has a large number of muscles, pre-excitation syndrome patients, “one more” in the heart, in fact, can be understood as “meat wire”, it has the function of “conductive”, like It has a “conductive” function, like a “wire”, the professional name is “bypass” or “bypass”. 2, in the process of human growth and development, it should be degraded, but unfortunately, some people are not completely degraded, so “more than one wire”. In a very few cases, there is not just one more, but two or even more, i.e. “multiple bypasses”. Here again, it is not the “blood vessels” that are extra. Therefore, pre-excitation syndrome is not the same thing as coronary artery disease or myocardial ischemia (which are problems with the blood vessels of the heart), but the electrocardiogram looks a little bit like the manifestation of myocardial ischemia. Of course, a very small number of patients with pre-excitation syndrome will be accompanied by other heart disease. 3, the probability of occurrence: about every 1000 people, there are 1.5 to 3 “pre-excitation” patients, so it is not a lot, but also not bad. 4. In theory, “pre-excitation” is considered congenital. Generally, it is not hereditary, however, a patient with pre-excited syndrome is about twice as likely to have a member of his or her immediate family with the disease. Why is there “one more”? 1, a situation: the electrocardiogram has “pre-excitation” (can be interpreted as a short-circuit potential) performance, but never “short-circuit” occurrence (i.e.: no tachycardia attack), this situation is strictly speaking, called “asymptomatic pre-excitation “In the other case, if the ECG usually has “pre-excitation” and there has been a tachycardia episode (i.e., a “short circuit”), then it is called “pre-excitation syndrome This is called “pre-excitation syndrome”. Generally speaking, it has the following effects. (1) The usual electrocardiogram is not normal, and there are signs of “pre-excitation” (short-circuiting), resulting in abnormal physical examination results, affecting job recruitment and entry into the workforce, etc. Some women find “pre-excitation” before giving birth and worry about the onset of the disease during pregnancy. (2) A “short circuit” or “severe short circuit” occurs, causing tachycardia that lasts from a few minutes to several hours or even days. In mild cases, sudden onset of panic, heartbeat, weakness, chest tightness, chest pain (about 90% of cases), and in severe cases, pallor, cold sweat, hypotension, or even blackness, brief fainting, loss of consciousness, and shock (about 10% of cases). After the seizure ends (either by itself or after medical treatment or resuscitation), the patient can recover quickly and look like a normal person again. However, these episodes can recur irregularly, from occasional to weeks or even days, with a general tendency to become more frequent. In very rare cases, “pre-excitation” can cause sudden death, the approximate possibility is that for every 300 patients with pre-excitation, 1 case occurs each year; there are also studies showing that 162 patients with asymptomatic pre-excitation, observed for 5 years, 3 of them died suddenly. 2, in general, type A pre-excitation, that is, more than the “wire” on the left side of the heart, more common; type B: in the right side of the heart, less common. 3, intermittent pre-excitation, can be understood as the usual electrocardiogram, sometimes normal, and sometimes show “pre-excitation”. This kind of patients can also have tachycardia, but relatively speaking, they are less likely to have the “severe manifestations” mentioned above. I have “pre-excitation”, what should I do? In the first case, if you have had an episode of tachycardia (confirmed by ECG at the time of onset), or if you do not have an ECG to confirm an episode, but usually have “pre-excitation” on ECG, and also have a high probability of having an episode of tachycardia, such as having sudden, short-lived (generally, at least a few minutes) inexplicable panic attacks, heartbeat (a few people have a pulse that confirms a fast heartbeat), or a rapid heartbeat (a few people have a pulse that confirms a rapid heartbeat), or a rapid heartbeat. In all these cases, “cardiac electrophysiology + radiofrequency ablation” (minimally invasive technique) is recommended.) In particular, RF ablation should be considered as early as possible for patients with unexplained sudden fainting and loss of consciousness. Most of them can be cured at once. In the second case, if it is true that there has never been an episode of tachycardia, it is generally called “asymptomatic pre-excitation”, and the treatment strategy should be formulated according to the specific situation of the patient, i.e., patient-specific analysis, not generalized, and consultation with a professional doctor is required. Generally speaking, radiofrequency ablation can be temporarily avoided, unless tachycardia occurs again later, or the recruitment requirements, then radiofrequency ablation will be performed. Fourth, I have “pre-excitation syndrome”, also did have episodes of tachycardia, the doctor told me to do radiofrequency ablation, but I am afraid of the risk, has been afraid of surgery, what should I do? It is true that not to do radiofrequency ablation can temporarily avoid the potential risks of surgery. However, without surgery, there are several possible disadvantages: long-term medication may be required, and the effect of medication is not ideal and has certain side effects; tachycardia irregular episodes, affecting the quality of life, some patients even never dare to go out of the house; female patients during pregnancy, handling difficult; a very small number of patients who usually have serious symptoms, there is the possibility of sudden death, especially young patients; some patients Due to long-term recurrent episodes of tachycardia, atrial fibrillation (AF) is induced, which is a more annoying arrhythmia and can even cause sudden deterioration of the patient’s condition. Radiofrequency ablation is a minimally invasive technique to cure the “pre-excitation syndrome”, which has a history of many years and a mature technology. Of course, as long as it is a surgery, there are potential surgical risks, so if necessary, it is recommended to go to a large hospital with a large number of cases and communicate with an experienced electrophysiologist and RF ablation specialist. From clinical practice and reality, some patients are determined to have surgery when they have an attack (the wolf is coming), and when they get well this time (the wolf is gone), their courage will fade, and the next time “the wolf is coming again”, they will make up their mind again ……… After a period of “tossing and turning”, I often finally accept radiofrequency ablation. I want to take medicine to treat my pre-excitation syndrome, does it work? Can the medication make the “pre-excitation” disappear and make my ECG normal? 1. Drugs may have some effect, but not necessarily. The main effect, one is to take medicine for a long time, may make the number of tachycardia episodes less, but it is difficult to completely prevent all the episodes; second, each time the attack, temporary take a few tablets, may be able to terminate the attack, but the effect will be slower, often take half an hour to an hour, if you want to immediately take effect, it is better to hurry to the hospital! In addition, the specific drugs to eat, how to eat, depending on the specific condition of the patient, if the drug selection is not appropriate, or even counterproductive, aggravating the disease. Also, long-term medication, one is the trouble, the second is the drug has certain side effects. 2, part of the patients to take drugs, “pre-excitation” may temporarily disappear, the ECG is temporarily normal, but the effect is not particularly sure, to rely on this approach to make the ECG looks normal, not very “reliable”.