多普勒超声和心导管测量阵发性心房颤动患者左心房压力的研究

Chinese Journal of Geriatric Heart Brain and Vessel Diseases(2014)

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Abstract
目的:探讨多普勒超声能否有效地预测阵发性心房颤动(PAF)患者的左心房压力(LAP)。方法选择PAF患者31例,导管射频消融术前1 d行经胸及经食管彩色多普勒超声检查,测左心房内径、LVEF、舒张期肺静脉血流衰减时间(DTD )、收缩期肺静脉血流衰减时间(STD )等相关参数;术中通过心导管测量LAP。对多普勒超声参数与LAP进行相关性分析。结果31例患者LAP(14.45±7.60)mm Hg(1 mm Hg=0.133 kPa)、DTD (176.97±56.74)ms、STD (193.97±55.17)ms。DTD 和STD 与LAP呈负相关(r=-0.63,r=-0.81,P=0.00)。结论DTD 和STD 可能是简便、可靠、无创性预测PAF患者LAP的理想指标。
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Key words
ultrasonography,Doppler,catheter ablation,atrial fibrillation,atrial function,left,blood flow velocity
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