motion in patients with rheumatic mitral stenosis

    HU Xiaoª²Min, LI Tong, CAI Zhenª²Jie, ZHOU Gengª²Xu, ZHANG Haiª²Bin

    1Department of Cardiovascular Surgery, Xijing Hospital, Fourth Military Medical University, Xi¬ðan 710033, China, 2Department of Special Diagnosis,210 Hospital of PLA, Dalian 116021, China

    ¡¾Abstract¡¿ AIM: To evaluate the relation of myocardial pathologic changes to myocardial motion in patients with rheumatic mitral stenosis (RMS). METHODS: Twentyª²two patients with RMS underwent echocardiography examination, including preª²operation Doppler tissue imaging (DIT) in which systolic myocardial spectrum wave S, diastolic myocardial spectrum wave D and the duration (T) from R wave on surface electric cardiograph to S wave were recorded on apical four chamber view. The three largest waves were measured and the mean value was recorded respectively as S3, D3 and T3. Specimens of papillary muscles were obtained at the time of mitral valve replacement for pathologic analysis. RESULTS: Arteriole Di/Do was positively correlated to D3, (r £½0.50, P< 0.05), interstitial fibrosis level was positively correlated to T3, (r£½0.68, P<0.05) and S3 was positively correlated to D3 (r=0.43, P<0.05). CONCLUSION: The measurement of D3 and T3 by DTI before operation can reflect pathologic changes of myocardium, which is helpful for the time choice of operation and the prediction of prognosis. ......