CAJ | 학술논문

目的：探讨二维超声心动图（2DE）、实时三平面技术（RT-3PE）与实时全容积技术（FV-3DE）在定量评价房室顺序双心腔起搏双心腔感知触发和抑制型（ DDD）模式起搏器植入后左室收缩功能中的价值。方法分别采用2DE、RT-3PE、FV-3DE测量30例DDD模式起搏器植入患者术前及术后左室舒张末期容积（LVEDV）、收缩末期容积（LVESV）、射血分数（EF），并在三种方法间进行比较。结果 DDD模式起搏器植入后EF大于起搏器植入前，2DE测定的EF大于RT-3PE测值（ P ＜0.05），2DE及RT-3PE测定的LVEDV、LVESV均小于FV-3DE测值，而2DE及RT-3PE测定的EF大于FV-3DE测值，以上各测值之间差异均有统计学意义（ P ＜0.05）。2DE及RT-3PE两种方法测得的LVEDV及LVESV间差异无统计学意义（ P＞0.05）。结论起搏器植入后患者LVSF有着明显改善，FV-3DE能准确评价起搏器植入患者LVSF状况，对于评价DDD模式起搏器植入患者左室收缩功能更有意义。2DE及RT-3PE方法有可能低估LVEDV、LVESV，高估EF。
목적：탐토이유초성심동도（2DE）、실시삼평면기술（RT-3PE）여실시전용적기술（FV-3DE）재정량평개방실순서쌍심강기박쌍심강감지촉발화억제형（ DDD）모식기박기식입후좌실수축공능중적개치。방법분별채용2DE、RT-3PE、FV-3DE측량30례DDD모식기박기식입환자술전급술후좌실서장말기용적（LVEDV）、수축말기용적（LVESV）、사혈분수（EF），병재삼충방법간진행비교。결과 DDD모식기박기식입후EF대우기박기식입전，2DE측정적EF대우RT-3PE측치（ P ＜0.05），2DE급RT-3PE측정적LVEDV、LVESV균소우FV-3DE측치，이2DE급RT-3PE측정적EF대우FV-3DE측치，이상각측치지간차이균유통계학의의（ P ＜0.05）。2DE급RT-3PE량충방법측득적LVEDV급LVESV간차이무통계학의의（ P＞0.05）。결론기박기식입후환자LVSF유착명현개선，FV-3DE능준학평개기박기식입환자LVSF상황，대우평개DDD모식기박기식입환자좌실수축공능경유의의。2DE급RT-3PE방법유가능저고LVEDV、LVESV，고고EF。
Objective To assess the left ventricular systolic function (LVSF) in patients with implanted dual-chamber(DDD) mode cardiac pacemakers using Two-dimensional Echocardiography (2DE),Real-time Tri-plane Echocardiography (RT-3PE)and Full-volume Three Dimensional Echocardiography (FV-3DE).Methods A total of 30 patients with DDD mode cardiac pacemaker were ex-amined by 2DE, RT-3PE and FV-3DE separately.Left ventricle end diastolic volume (LVEDV), left ventricle end systolic volume (LVESV), and ejection fraction (EF) were measured and compared within the three methods above .Results The measurement of EF with patients of post-operation was higher than the patients of pre-operation.The measurements of EF with 2DE were higher than RT-3PE.The measurements of LVEDV , LVESV and SV with 2DE and RT-3PE were lower than FV-3DE, and EF was higher .There were statistically significant differences in above measurements ( P <0.05 ) .But there were no statistically significant differences in measurements of LVEDV and LVESV between 2DE and RT-3DE ( P >0.05).Conclusions Implanting DDD mode cardiac pace-maker can evaluate LVSF of patients obviously .FV-3DE can evaluate LVSF in patients with DDD mode cardiac pacemaker accurately . The LVEDV, LVESV and SV are underestimated by 2DE and RT-3PE, and EF is overestimated by 2DE and RT-3PE.