CAJ | 학술논문

目的探讨二维斑点追踪技术评价经皮室间隔封堵术对左心室扭转运动的早期影响.方法对36例室间隔缺损患者封堵术前、术后3 d的常规心脏超声指标进行检测,并运用二维斑点追踪技术对患者左室旋转及扭转运动进行分析.结果封堵术后3 d,左室舒张末期内径(LVEDd)、左室舒张末期容积(LVEDV)较术前减小,左室基底部、心尖部旋转角度及整体扭转运动角度较术前减低.与术前相比,基底部后壁、下壁、后间隔顺时针旋转角度峰值降低(P<0.05),其余9个节段的旋转角度峰值降低,但差异无统计学意义(P>0.05).封堵术前、术后3 d左室射血分数(LVEF)稍有改变.但差异无统计学意义(P>0.05).左室整体扭转运动角度峰值与LVEF、LVEDV呈线性相关.结论左室扭转运动可作为评价心脏收缩功能较敏感的指标.
목적 탐토이유반점추종기술평개경피실간격봉도술대좌심실뉴전운동적조기영향.방법 대36례실간격결손환자봉도술전、술후3 d적상규심장초성지표진행검측,병운용이유반점추종기술대환자좌실선전급뉴전운동진행분석.결과 봉도술후3 d,좌실서장말기내경(LVEDd)、좌실서장말기용적(LVEDV)교술전감소,좌실기저부、심첨부선전각도급정체뉴전운동각도교술전감저.여술전상비,기저부후벽、하벽、후간격순시침선전각도봉치강저(P<0.05),기여9개절단적선전각도봉치강저,단차이무통계학의의(P>0.05).봉도술전、술후3 d좌실사혈분수(LVEF)초유개변.단차이무통계학의의(P>0.05).좌실정체뉴전운동각도봉치여LVEF、LVEDV정선성상관.결론 좌실뉴전운동가작위평개심장수축공능교민감적지표.
Objective To investigate the left ventricular(LV)rotation and twist in patients with ventricular septal defect(VSD)after transcatheter closure of VSD.Methods Using speckle tracking imaging(STI),the roation of 6 segments of basal and apical short-axises and LV twist were measured repeatedly in 36 patients with VSD before closure and in 3rd day after closure.The peak roation of 6 segments of basal and apical short-axises and peak global roation of the basal and apical short-axises and peak LV twist were caculated.LV end-diastolic diameter(LVEDd)and LV end-diastolic volume(LVEDV)were caculated.LV ejection fraction(LVEF)was measured by biplane Simpson method.Results The peak roation of basal and apical short-axises and peak twist of LV twist in 3rd day after closure were lower(P<0.05).LVEDd and LVEDV were significantly reduced in 3rd day after closure(P<0.05).There were no significant differences in LVEF.The peak twist of LV had a significant correlation with LVEF and LVEDV.Conclusions LV roation and twist may be a new index for predicting LV systolic function.