房颤f波振幅与左房大小的相关性

Correlationship between Atrial Fibrillatory f Wave Amplitude and Left Atrial Size

回顾性分析35例房颤病例 f 波振幅与左房内径关系。取心电图 V_1导联3—4个心动周期 f 波振幅的平均值,≥1mm 为粗大 f 波、<1mm 为细小 f 波。左房大小取决于二维心超收缩末期左房前后径,>40mm 者属左房增大。结果表明,风心病(8/15)出现粗大 f 波,(12/15)左房增大(r=-0.00176);冠心病(6/15)出现粗大 f 波,(8/15)左房增大(r=-0.1275);其他心脏病粗大 f 波与左房增大率均为(3/5)(r=0.0627)。粗大 f 波在风心病和冠心病患者中发生率的 P 值>0.1,无统计学意义。认为房颤 f 波振幅与房颤病因、左房内径无相关性。

A retroseptive correlative study was made on 35 cases of atrial fibrillation f wave amplitudes and left atrial internal diameters.The mean value of f wave amplitude during 3—4 cycles,was taken from lead V_t of the ECG.The end point of the“coarse”f wave was >1mm,while that of the“fine”f wave was <1 mm.Two dimensional echocardiogram was used to measure the anterio-posterier left atrial end systolic di- ameter.Left atrial enlargement was considered when the diameter equalled or exceeded 40 mm.The results showed that in the case of RHD(8/15)the f waves were“coarse”, with enlargement of the left atrium (12/15)(r=-0. 0176).Six out of 15 cases of CAD,“saw coarse”f wave,and 8 showed left atrial en- largement(r=-0.1375).Three of 5 cases other than RHD and CAD demonstrated coarse f waves and left atrial enlargement(r=0.0627).The comparasion between the incidence of“coarse”f wave and mean left atrial enlargmenet in RHD and CAD revealed no statistical significance.It could be thus concluded that the f wave size heared no relationship to either the etiogenesis of atrial fibrillation or left atrial size.