Atrial fibrillation, referred to as atrial fibrillation, is a common arrhythmia that refers to the loss of regular and orderly atrial electrical activity and its replacement by rapid and disordered fibrillation waves, a serious disorder of atrial electrical activity. Among them, paroxysmal atrial fibrillation accounts for a large part, today we will look at paroxysmal atrial fibrillation should usually pay attention to what? 1, what is paroxysmal atrial fibrillation Paroxysmal atrial fibrillation refers to atrial fibrillation duration ≤ 7d (often ≤ 2d), generally can be self-terminating, can be recurrent. It is the most easily missed type of atrial fibrillation in clinical practice, and is known as the “invisible killer”. If left untreated and persists for a long time, it can easily lead to persistent atrial fibrillation. 2, the risk of paroxysmal atrial fibrillation 1) risk of stroke and thromboembolism Atrial fibrillation when the atria lose their contractile function, blood is easily stagnant in the atria and form thrombus, thrombus can be dislodged with the blood to all parts of the body, leading to cerebral embolism (stroke, hemiplegia), limb artery embolism (serious cases even require amputation) and so on. Among them, cerebral embolism is the most common, and is an important cause of disability and death. 2) Causes heart failure Heart failure and atrial fibrillation often coexist and form a vicious circle, both have the same risk factors such as hypertension, diabetes and heart valve disease, etc. Atrial fibrillation increases the prevalence of heart failure by three times and aggravates the symptoms of heart failure. Palpitations, fatigue, chest tightness, and decreased exercise tolerance are the most common clinical symptoms of atrial fibrillation. Ventricular arrest caused by atrial fibrillation can lead to blackout and syncope due to insufficient blood supply to the brain. The repeated onset and termination of paroxysmal atrial fibrillation causing sinus quiescence is an important cause of ventricular arrest, and ventricular beat intervals of 3s or more can cause blackouts or syncope. Atrial fibrillation can cause difficulty in sleeping and psychological distress in patients, which also needs to be given sufficient attention by clinicians. 3.What should I pay attention to in paroxysmal atrial fibrillation? (1) Lifestyle changes Patients with paroxysmal atrial fibrillation must quit smoking, limit alcohol consumption, avoid caffeine-containing diets and medications (such as tea, coffee, cola, and some over-the-counter medications); be cautious with certain medications used to treat coughs or colds because they may promote the occurrence of irregular heart rhythms, and ask your doctor or read the instructions before taking them to see if they are suitable for you. 2) Active treatment of primary disease Management of predisposing factors: hypertension, heart failure, valvular heart disease, myocardial infarction, hyperthyroidism, diabetes, obstructive sleep apnea, end-stage renal disease, smoking, alcohol consumption, and other risk factors that contribute to the occurrence or exacerbation of atrial fibrillation. 3) Anticoagulation therapy to prevent thrombosis Patients with paroxysmal atrial fibrillation, who are also at risk of thrombosis, and patients with persistent and chronic atrial fibrillation, who are evaluated by specialists, if there are no contraindications, need to implement long-term anticoagulation therapy to prevent the occurrence of cerebral thrombosis and other arterial thrombosis. 4) Monitor blood pressure, heart rate and pulse at home Patients with atrial fibrillation should learn to check their blood pressure, heart rate and pulse at home to keep track of their condition, which can help determine whether there is an exacerbation or a dangerous moment. Learn to self-monitor to feel and count their pulse every day. (5) Regular review If there are no obvious symptoms, you need to go to the hospital every six months to check the heart ultrasound and ambulatory electrocardiogram to assess the structure, size and function of the heart, as well as the heart rate of atrial fibrillation and whether other arrhythmias occur in combination.