CAJ | 학술논문

目的探讨应变率成像评价慢性肾功能不全患者左心功能的价值.方法传统超声心动图和应变率成像技术测量55例慢性肾功能不全患者与20例正常人(对照组),其中慢性肾功能不全患者依据肌酐清降率分为轻中度慢性肾功能不全组(22例)和重度慢性肾功能不全组(33例).取心尖四腔心、心尖二腔心各室壁(室间隔、外侧壁、下壁和前壁)的基底段测定收缩期应变率(Ssr),舒张早期应变率(Esr),舒张晚期应变率(Asr),4个室壁的平均值用来估测左室整体功能.结果 SR技术对病例组左心收缩功能不全检出率显著高于传统超声心动图(P<0.05),重度慢性肾功能不全组的Asr明显低于轻中度慢性肾功能不全组及对照组(F=3.567 P<0.05).结论应变率能更加敏感地发现慢性肾功能不全患者左室功能障碍,重度慢性肾功能不全患者左心收缩功能损伤更明显.
목적 탐토응변솔성상평개만성신공능불전환자좌심공능적개치.방법 전통초성심동도화응변솔성상기술측량55례만성신공능불전환자여20례정상인(대조조),기중만성신공능불전환자의거기항청강솔분위경중도만성신공능불전조(22례)화중도만성신공능불전조(33례).취심첨사강심、심첨이강심각실벽(실간격、외측벽、하벽화전벽)적기저단측정수축기응변솔(Ssr),서장조기응변솔(Esr),서장만기응변솔(Asr),4개실벽적평균치용래고측좌실정체공능.결과 SR기술대병례조좌심수축공능불전검출솔현저고우전통초성심동도(P<0.05),중도만성신공능불전조적Asr명현저우경중도만성신공능불전조급대조조(F=3.567 P<0.05).결론 응변솔능경가민감지발현만성신공능불전환자좌실공능장애,중도만성신공능불전환자좌심수축공능손상경명현.
Objective To evaluate the application of strain rate imaging in assessing the left ventricular function in chronic renal failure patients.Methods Conventional echocardiography and Strain Rate Imaging were recorded in 55 patients and in 20 healthy controls.Patients were divided into mild/moderate chronic renal tailure CKD(CCr>29 ml/min;Group 1，n=22)group and severe CKD(CCr≤29 ml/min;Group 2,n=33)group.Strain Rate,the peak strain rate at systole(Ssr)， early diastole(Esr)and atrial contraction(Asr) were obtained from apical 4-chamber view(the base segment of septal and lateral wall )and apical 2-chamber(the base segment of anterior and inferior.The average of four LV wall measurements was used to evaluate LV global function.Results SR,can help identify significantly more patients with systole dysfunction(P<0.05)and diastolic dysfunction than using conventional echocardiography.and showed,Group 2 CKD patients had lower Ssr(F=3.567 P<0.05) in comparison with Group 1 and the healthy control group.Conclusions The left ventricular dsyfunction in chronic renal failure patients can be more sensitively discovered by strain rate imaging.The injury of left ventricular systolic function in patients with severe CKD is more obvious.