| 肖竹影,吴长君,薛莉.彩色多普勒超声心动图对房颤病人复律后左房收缩功能的观察[J].中国医学影像技术,1998,14(12):900~902 |
| 彩色多普勒超声心动图对房颤病人复律后左房收缩功能的观察 |
| Doppler Color Echocardiographic OBservation of Left Atrial Systolic Function Following Conversion of Atrial FiBrillation in Patients |
| 投稿时间：1998-08-11 |
| DOI： |
| 中文关键词: 彩色多普勒超声心动图 房颤 电转复 左房收缩功能 |
| 英文关键词:Doppler color echocardiogram Atrial fiBrillation Electrical conversion Left atrial systolic function |
| 基金项目: |
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| 中文摘要: |
| 目的：对房颤病人电转复后左房收缩功能的观察。方法：应用彩色多普勒超声心动图对20例房颤病人转复窦性心率者于复律后1小时, 24小时, 2周, 及4周分别测量二尖瓣口舒张期血流频谱的A峰流速, 判定房颤转复后心房收缩功能的恢复过程。结果：15例病人二尖瓣血流频谱A峰流速电转复后1小时0.30±0.10m/s增至第4周0.62±0.14m/s(P<0.001);2例病人24小时A峰流速恢复正常且大于E峰流速；1例病人至转复后4周仍未出现A峰。另2例病人转复后一周复颤, 其中1例未出现A峰, 1例仅出现低小的A峰, 且不随时间变化。结论：房颤转复后左房机械功能出现“顿抑”, 从而提供临床房颤转复后应给予适当的抗凝治疗。 |
| 英文摘要: |
| OBjective:To oBserve the restoration of left atrial systolic function after electrical conversion of atrial fiBrillation.Method:In 20 patients with atrial fiBrillation,Doppler color echocardiographic examination was performed to measure A peak flow rate using diastolic Blood flow frequency spectrum at the mitral orifice,1h,24h,2 and 4 weeks after conversion of atrial fiBrillation to sinus rhthm.Result:The A peak flow rate increased from 0.30±0.10m/s at 1h to 0.62±0.14m/s at 4 weeks after conversion in 15 cases ( P <0.001);returned to normal and Became more rapid than E peak flow rate in 2 cases.A peak did not appear within 4 weeks after conversion in one case.Atrial fiBrillation recurred one week after conversion in the remaining two cases,with A peak aBsent in one case and A peak Being low,small and unchanged with time in the other.Conclusion:Appropriate anticoagulant therapy should Be used following conversion in consideration of a highly possiBle depression of the left atrial mechanical function after clinical electrical conversion of atrial fiBrillation. |
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