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房颤是临床上是常见的一种心律失常,为异位性心律失常的一种。且多为持续性。健康人亦可偶发房颤,称为良性发作性房颤。房颤一经出现,对心功能影响尤为严重,因为此时心脏失去了整体收缩的能力,各部分以极快而细的乱颤代替了心房有效统一的收缩。同时心室率快而不规则,以致心室血液充盈不全,心输出量减少,冠脉供血不足,加之心脏工作量和耗氧量的增加,故在器质性心脏病患者,容易引起心绞痛或心衰。病人感到心悸、不安、头晕、。此外,房颤发生后,心房内一部分血液容易发生停滞,易形成血栓,血栓脱落可以引起周围动脉栓塞。体检时,可发现心率完全不规则、心音强度不一,脉搏强弱不等。心率快,每分钟可达120—160次,并有脉搏短绌现象。其形态特点大致相当于祖国医学促脉或代脉范
Atrial fibrillation is clinically a common arrhythmia, a kind of atopic arrhythmia. And most of the continuity. Healthy people may also occasionally atrial fibrillation, known as benign atrial fibrillation. Atrial fibrillation occurs, the impact on cardiac function is particularly serious, because at this time the heart loses the ability to shrink the whole body, all parts of the fast and fine chaos flutter instead of atrial contraction effectively effective. At the same time, fast and irregular ventricular rate, resulting in inadequate filling of ventricular blood, cardiac output decreased coronary insufficiency, coupled with increased cardiac workload and oxygen consumption, it is easy to cause angina or heart failure in patients with structural heart disease . The patient feels palpitation, restlessness, dizziness. In addition, after the occurrence of atrial fibrillation, part of the atrial blood stagnation easily, easy to form thrombus, thrombus shedding can cause peripheral arterial embolism. Physical examination, can be found completely irregular heart rate, heart sound intensity varies, pulse strength range. Fast heart rate, up to 120-160 times per minute, and the phenomenon of shortness of breath. Its morphological characteristics roughly equivalent to the motherland medicine pulse or on behalf of the pulse