房颤的总患病率、年龄分组、性别分组、病因分组 后的患病率均和国外相关资料的趋势接近。中国因 房颤而住院的患者也有增加的趋势。随着我国人口的老龄化，房颤的负担无疑会越来越重。我国房颤患 者并发脑卒中的发生情况也与国外类似。在平均70 岁的非瓣膜病房颤患者中，缺血性脑卒中的发生率为 5.3%，与欧美国家相似(4% ~6%)。住院患者房颤 的脑卒中患病率达24.8%，且有明显随年龄增加趋 势，80岁以上脑卒中患病率高达32.9%。
Overviewjex
Atrial is a fibrillationn irregular and often rapid heart rate that can increa your risk of strokes, heart failure and other heart-related complications.
During atrial fibrillation, the heart's two upper chambers (the atria) beat chaotically and irregularly — out of coordination with the two lower chambers (the ventricles) of the heart. Atrial fibrillation symptoms often include heart palpitations, shortness of breath and weakness.
Episodes of atrial fibrillation may come and go, or you may develop atrial fibrillation that doesn't go away and may require treatment. Although atrial fibrillation itlf usually isn't life-threatening, it is a rious medical condition that sometimes requires emergency treatment.
A major concern with atrial fibrillation is the potential to develop blood clots within the upper chambers of the heart. The blood clots forming in the heart may circulate to other organs and lead to blocked blood flow (ischemia).
Treatments for atrial fibrillation may include medications and other interventions to try to alter the heart's electrical system.
Symptoms
Some people with atrial fibrillation have no symptoms and are unaware of their condition until it's discovered during a physical examination. Tho who do have atrial fibrillation symptoms may experience signs and symptoms such as:
Palpitations, which are nsations of a racing, uncomfortable, irregular heartbeat or a flip-flopping in your chest
Weakness
多彩多姿Reduced ability to exerci
Fatigue
cyrixLightheadedness
Dizziness
Shortness of breath
Chest pain
Atrial fibrillation may be:
Occasional.高一数学课程讲解视频 In this ca it's called paroxysmal (par-ok-SIZ-mul) atrial fibrillation. You may have symptoms that come and go, usually lasting for a few minutes to hours. Sometimes symptoms occur for as long as a week and episodes can happen repeatedly. Your symptoms might go away on their own or you may need treatment.
Persistent. With this type of atrial fibrillation, your heart rhythm doesn't go back to normal on its own. If you have persistent atrial fibrillation, you'll need treatment such as an electrical shock or medications in order to restore your heart rhythm.
Long-standing persistent. This type of atrial fibrillation is continuous and lasts longer than 12 months.
Permanent. In this type of atrial fibrillation, the abnormal heart rhythm can't be restored. You'll have atrial fibrillation permanently, and you'll often require medications to control your heart rate and to prevent blood clots.
研究生培训班When to e a doctor
If you have any symptoms of atrial fibrillation, make an appointment with your doctor. Your doctor may order an electrocardiogram to determine if your symptoms are related to atrial fibrillation or another heart rhythm disorder (arrhythmia).
If you have chest pain, ek emergency medical assistance immediately. Chest pain could signal that you're having a heart attack.
病因
1. 房颤的急性原因
房颤与某些急性、暂时性原因有关，包括饮酒、外科手术、电击、心肌炎、肺栓塞、其它
肺脏病以及甲状腺机能亢进，治疗基础疾病可以消除房颤。房颤是心肌梗塞和心胸外科手术后较常见的早期并发症。
2. 不伴有相关心血管疾病的房颤
什么是nc年轻患者中，大约30%(45%的阵发性房颤和20%(25%的持续性房颤属于孤立性房颤。
3. 伴有相关心血管病的房颤
如何欲擒故纵与房颤有关的心血管病包括瓣膜性心脏病（大多为二尖瓣性）、冠心病（CAD）以及高血压，尤其是存在左室肥厚（LVH）时。
4. 神经性房颤
自主神经系统通过提高迷走神经或交感神经张力可以触发易感病人发生房颤。许多患者房颤发作都是出现在迷走神经和交感神经张力增强的时候。Coumel描述了一组病人，并将其分为迷走型房颤和交感型房颤。纯粹迷走型房颤或交感型房颤患者比较少见，但是如果患者有某型房颤发作史以及相关特征性症状之一，那么临床医师选用相应药物才能更有效地防止反复发作。
葛底斯堡战役Caus
