CAJ | 학술논문

目的：探讨房间隔缺损患者右室容积和功能的改变。方法选取继发孔型房间隔缺损患者31例（房缺组）及健康体检者30例（对照组），应用单心动周期实时三维超声测定所有研究对象的右室容积和功能参数，并通过心率计算右心室心输出量（RVCO ）。对房缺组右室容积和功能相关参数与缺损最大径和患者年龄作相关性研究。结果房缺组的右心室收缩末容积（RVESV）、右心室舒张末容积（RVEDV）、右心室每搏量（RVSV），右心室射血分数（RVEF）及 RVCO 均显著高于对照组（P＜0．01）。缺损最大径与RVESV、RVEDV、RVSV及RVCO呈正相关（r＝0．55，P＜0．01；r＝0．61，P＜0．01；r＝0．63，P＜0．01；r＝0．61，P＜0．01），与RVSV相关性最好，而缺损最大径与RVEF没有明显相关性（r＝0．00，P＞0．05）。患者年龄与RVESV、RV-EDV、RVSV呈正相关（r＝0．53，P＜0．01；r＝0．48，P＜0．01；r＝0．41，P＜0．01），与RVEF呈负相关（r＝-0．44，P＜0．05），与RVCO没有明显相关性（r＝0．26，P＞0．05）。结论单心动周期实时三维超声是能够快速、准确测量右室容积和功能的新技术；房间隔缺损由于房水平由左向右分流，右心室容量增多，右心室扩大心肌收缩力增强，心功能增高；缺损越大，分流量越多，右心室容量越大，右心功能越高；年龄越大，分流持续时间延长，右心室容量越大，而右心功能相对减低。
목적：탐토방간격결손환자우실용적화공능적개변。방법선취계발공형방간격결손환자31례（방결조）급건강체검자30례（대조조），응용단심동주기실시삼유초성측정소유연구대상적우실용적화공능삼수，병통과심솔계산우심실심수출량（RVCO ）。대방결조우실용적화공능상관삼수여결손최대경화환자년령작상관성연구。결과방결조적우심실수축말용적（RVESV）、우심실서장말용적（RVEDV）、우심실매박량（RVSV），우심실사혈분수（RVEF）급 RVCO 균현저고우대조조（P＜0．01）。결손최대경여RVESV、RVEDV、RVSV급RVCO정정상관（r＝0．55，P＜0．01；r＝0．61，P＜0．01；r＝0．63，P＜0．01；r＝0．61，P＜0．01），여RVSV상관성최호，이결손최대경여RVEF몰유명현상관성（r＝0．00，P＞0．05）。환자년령여RVESV、RV-EDV、RVSV정정상관（r＝0．53，P＜0．01；r＝0．48，P＜0．01；r＝0．41，P＜0．01），여RVEF정부상관（r＝-0．44，P＜0．05），여RVCO몰유명현상관성（r＝0．26，P＞0．05）。결론단심동주기실시삼유초성시능구쾌속、준학측량우실용적화공능적신기술；방간격결손유우방수평유좌향우분류，우심실용량증다，우심실확대심기수축력증강，심공능증고；결손월대，분류량월다，우심실용량월대，우심공능월고；년령월대，분류지속시간연장，우심실용량월대，이우심공능상대감저。
Objective To investigate the changes of right ventricular(RV) volume and function in patients with atrial septal de-fect(ASD) .Methods 31 patients with ASD-type secundum(ASD group) and 30 age-matched controls(control group) were includ-ed .Single beat real-time three dimensional echocardiography (sbRT3DE) were performed in all to evaluate right ventricular volume and function ,then right venrtricular cardiac output(RVCO) were calculated with heart rate .Further correlative analysis was calcu-lated between right ventricular volume and function parameters of the ASD group and ASD size and the patient′s age .Results Right ventricular end-systolic volume(RVESV) ,right ventricular end-diastolic volume(RVEDV) ,right ventricular stroke volume (RVSV) ,right ventricular ejection fraction(RVEF) ,RVCO of the ASD group were significantly higher than that of control group (P<0 .001) .The maximum diameter of ASD had positive relation with RVESV ,RVEDV ,RVSV ,RVCO(r=0 .55 ,P<0 .01 ;r=0 .61 ,P<0 .01 ;r=0 .63 ,P<0 .01;r=0 .61 ,P<0 .01 ,respectively ) ,and was best correlation with RVSV .But ,there was no signifi-cant correlation between the maximum diameter of ASD and RVEF (r=0 .00 ,P>0 .05) .The patients′age had positive relation with RVESV ,RVEDV ,RVSV(r=0 .53 ,P<0 .01 ;r=0 .48 ,P<0 .01 ;r=0 .41 ,P<0 .01 ,respectively) ,had negtive relation with RVEF (r= -0 .44 ,P<0 .05) ,while there was no significant correlation between the patient′s age and RVCO(r=0 .26 ,P>0 .05) .Conclu-sion sbRT3DE is a fast and accurate new technology in evaluating RV volume and function .Atrial level left-to-right shunt leading to an increase in RV volume ,RV enlargement produces myocardial contractility .RV volume increases with ASD size ,then RV func-tion was enhanced .RV volume increases with patient′s age ,RV function is relatively lower .