CAJ | 학술논문

目的应用二维斑点追踪显像(STI)技术评价冠心病患者冠状动脉支架置入术前后左房功能的动态变化.方法应用STI技术测定27例冠心病患者冠状动脉支架置入术前、术后1周、1个月和3个月左房壁应变率曲线.分析冠心病患者左房功能的变化.结果 (1)与术前相比,术后1周左房平均峰值应变率无显著改变,术后1个月mSRs、mSRe均显著升高,mSRa显著降低(P<0.05),术后3个月变化更为显著(P<0.01).(2)与术前相比,术后1周左房射血功能无显著变化,术后1个月左房被动射血量增加,主动射血量减少(P<0.05),术后3个月变化显著(P<0.01).结论 STI技术可以定量评价冠心病患者支架置入术前、术后左房功能的动态变化.
목적 응용이유반점추종현상(STI)기술평개관심병환자관상동맥지가치입술전후좌방공능적동태변화.방법 응용STI기술측정27례관심병환자관상동맥지가치입술전、술후1주、1개월화3개월좌방벽응변솔곡선.분석관심병환자좌방공능적변화.결과 (1)여술전상비,술후1주좌방평균봉치응변솔무현저개변,술후1개월mSRs、mSRe균현저승고,mSRa현저강저(P<0.05),술후3개월변화경위현저(P<0.01).(2)여술전상비,술후1주좌방사혈공능무현저변화,술후1개월좌방피동사혈량증가,주동사혈량감소(P<0.05),술후3개월변화현저(P<0.01).결론 STI기술가이정량평개관심병환자지가치입술전、술후좌방공능적동태변화.
Objective To evaluate left atrial function after stent implantation by speckle tracking imaging(STI)in patients with coronary heart disease(CHD).Methods STI was performed on 27 patients with CHD before,1 week,1 and 3 months after stent implantation to evaluate left atrial function.Results (1)Compared with those of before stent implantation,left atrial mean peak value of strain rate had no changes significantly after 1 week of operation.The mSRs and mSRe were increased.The mSRa decreased 1 month after operation(P<0.05).3 months after operation those changes apparently appearred (P<0.01),while the mean peak strain rate showed no difference 1 week after operation.(2)Compared with those before stent implantation,left atrial ejection function showed no significant changes 1 week after operation.Left atrium passive ejection fraction(LAPEF) increased,but left atrium active ejection fraction(LAAEF) decreased 1 month after operation(P<0.05).3 months after operation those changes apparently appearred(P<0.01).Conclusions The improvement of left atrial function after stent implantation can be evaluated quantitatively by STI.