What is sick sinus node syndrome? Sick sinus node syndrome is referred to as sick sinus syndrome or sick sinus. Sick sinus node syndrome is an arrhythmia caused by organic lesions in the sinus node or its surrounding tissues (including atria and atrioventricular junctional area), resulting in impaired impulse formation and impulse efference in the sinus node. Bradycardia-tachycardia syndrome may also occur. What are the symptoms? The onset is insidious, the progression is slow, and the disease is sometimes detected by chance. Symptoms of inadequate blood supply to the heart, brain, gastrointestinal and kidney organs, such as weakness, chest pain, palpitations, dizziness, insomnia, memory loss, agitation, unresponsiveness, excessive urination, and poor appetite, are the main symptoms. Persistent or intermittent episodes may occur. In the presence of high sinus block or sinus arrest, short bouts of syncope or dark haze may occur. Occasionally, angina pectoris, heart failure, or shock may occur. Acute inferior myocardial infarction and myocarditis can cause temporary sinus node insufficiency, which usually disappears after the acute phase has passed. The clinical manifestations vary in severity and can be intermittent in nature. Most of the symptoms are due to insufficient blood supply to the brain, heart, kidney and other organs caused by slow heart rate, especially cerebral blood supply. In mild cases, weakness, dizziness, blurred vision, insomnia, poor memory, unresponsiveness or agitation are easily misdiagnosed as neurosis, and in elderly people, they are also easily misdiagnosed as cerebrovascular accident or senile syndrome. In severe cases, it may cause transient blackout, near syncope, syncope or As syndrome attack. Some patients have a combination of short-onset supraventricular tachyarrhythmic episodes, also known as slow-fast syndrome. In tachyarrhythmic episodes, the heart rate may suddenly accelerate to more than 100 beats/min, with varying durations, and the tachycardia may be abruptly aborted with or without a cardiac pause. In addition to palpitations, severe bradycardia or tachycardia can also aggravate the symptoms of existing heart disease and cause heart failure or angina. Low cardiac output can seriously affect the perfusion of the kidneys and other organs, and can also lead to hypuria and indigestion. Slow fast syndrome may also lead to symptoms of vascular embolism. What treatment is available Individuals with symptoms usually require placement of an artificial pacemaker. These devices are used to increase, not slow, the heart rate. Therefore, the best treatment option for those with episodes of tachycardia is to place an artificial pacemaker and then give a heart rate slowing medication such as a beta blocker or isoptin. What can I do? Sick sinus node syndrome is often caused by degenerative disease or fibrosis of the sinus node and its surrounding tissues, and the cause should be actively investigated and treated symptomatically to prevent further development of the disease. What may happen In addition to severe bradycardia or tachycardia, this disease may aggravate the symptoms of existing heart disease. Low cardiac output can seriously affect the perfusion of the kidneys and other organs, and can also lead to hypuria and indigestion. Slow tachycardia may also lead to vascular embolism symptoms. Occasionally, serious complications such as angina pectoris, heart failure or shock may occur, even leading to the death of the patient.