CAJ | 학술논문

[目的]用基于斑点追踪技术的应变及应变率来评价房颤患者左房机械功能,并探讨其与射频消融治疗效果的关系.[方法]对拟行射频消融治疗的42例阵发性房颤患者术前测量收缩期左房应变及应变率,追踪观察患者射频消融术治疗效果.分析收缩期左房应变及应变率与射频消融治疗效果的关系.[结果]42患者均顺利完成射频消融治疗,在3个月追踪期内13例患者出现房颤复发(33.3%),余29例维持窦性心率.复发组年龄、性别比、左房内径、左房容积、左室射血分数与无复发组比较均无显著性差异( P >0.05);复发组左房收缩期总体应变及应变率均低于无复发组,其差异有统计学意义( P < 0.05).[结论]收缩期左房应变及应变率与房颤患者射频消融术成功率有明显关系.
[목적]용기우반점추종기술적응변급응변솔래평개방전환자좌방궤계공능,병탐토기여사빈소융치료효과적관계.[방법]대의행사빈소융치료적42례진발성방전환자술전측량수축기좌방응변급응변솔,추종관찰환자사빈소융술치료효과.분석수축기좌방응변급응변솔여사빈소융치료효과적관계.[결과]42환자균순리완성사빈소융치료,재3개월추종기내13례환자출현방전복발(33.3%),여29례유지두성심솔.복발조년령、성별비、좌방내경、좌방용적、좌실사혈분수여무복발조비교균무현저성차이( P >0.05);복발조좌방수축기총체응변급응변솔균저우무복발조,기차이유통계학의의( P < 0.05).[결론]수축기좌방응변급응변솔여방전환자사빈소융술성공솔유명현관계.
Objective]To evaluate the left atrial mechanical function of patients with atrial fibrillation by using strain and strain rate based on speckle tracking technique ,and to explore its correlation with the efficacy of radiofrequency ablation .[Methods]Totally 42 patients with paroxysmal atrial fibrillation (PAF) scheduled for radiofrequency ablation were enrolled in this study .Systolic left atrial strain(LAS) and strain rate(LASR) were measured before the operation .The efficacy of radiofrequency ablation was followed up .The correlation of LAS and LASR with the efficacy of radiotherapy ablation was analyzed .[Results] All 42 patients under‐went radiofrequency ablation successfully .The recurrence of atrial fibrillation occurred in 13 patients(33 .3% ) during 3 months of follow up .Other 29 patients were sinus heart rate .There was no significant difference in age ,sex ratio ,left atrial diameter ,left atrial volume and left ventricular ejection fraction between recurrence group and non‐recurrence group( P > 0 .05) .Total LAS and LASR in recurrence group were lower than those in non‐recurrence group ,and there were significant differences( P < 0 .05) .[Conclusion] LAS and LASR are obviously correlated with the successful rate of radiofrequency ablation for patients with atrial fibrillation .