阵发性房颤的初步诊断及血流动力学研究

目的 探讨阵发性房颤(PAF)发生前后的血流动力学变化及早期诊断。方法 利用多普勒超声仪对21例PAF患者窦律及房颤时LAD、LVEF、S-LAmax、V-LAmax、LAEF进行检测,并与20例正常人及18例慢性房颤(CAF)患者进行对比。结果 (1)PAF患者窦律时左心房较正常人扩大,左心房功能降低,E/A比值降低且<1。(2)PAF发生前后左心房、左心室功能明显降低,而左心房大小无明显变化。(3)CAF比PAF患者,左心房进一步扩大,左心房功能进一步降低,左心室功能也降低,但无统计学意义。结论 (1)PAF患者的血流动力学有显著性改变。(2)超声心动图有助于评价PAF发生前后的血流动力学,对预防和治疗均有指导作用。(3)动态心电图是临床筛选PAF的重要方法。

The Early Diagnosis and Hemodynamics Study of Paroxysmal Atrial Fibrillation

Objective To explore the hemodynamic changes before and after paroxysmal atrial fibrillation (PAF) and the value of early diagnosis. Methods LAD, LVEF, S-LAmax, V-LAmax, LAEF were detected form 21 cases with PAF, 20 cases in normal, 18 cases with chronic fibrillation (CAF) by using ultro-dorpolas. Results 1. The left atrial was significantly larger in PAF group than in normal group. The function of left atrial decreased. The ratios of E/A decreased. 2. The function of left atrial and the function of left ventricular were significantly decreased. 3. The left atrial was significantly larger in CAF group than in PAF group. The function of left atrial decreased too. Conclusion 1. Paroxysmal atrial fibrillation is an important stage with significantly hemodynamics change in atrial fibrillation. 2. Echocardiography is helpful to evaluate hemodynamics before and after paroxysmal atrial fibrillation. 3. DCG may. be used as an mportant method in PVF's diagnosis.