Evaluation value of echocardiography for right ventricular function in patients with pulmonary embol-ism and analysis of influencing factors of risk stratification / 心血管康复医学杂志

ABSTRACT

Objective:To study evaluation value of echocardiography for right ventricular function in patients with pulmonary embolism (PE) and analyze the influencing factors of risk stratification .Methods:A total of 130 PE ca-ses treated in our hospital from Feb 2016 to Aug 2017 were selected .All patients received risk stratification ,inclu-ding 48 high risk cases (high risk group) and 82 low-medium risk cases (low-medium risk group).Another 60 healthy subjects undergoing physical examination were regarded as healthy control group during the same period .All subjects received two-dimensional echocardiography and tissue Doppler imaging .PAD ,PASP ,right ventricular Tei index , RVEDV ,RVSV ,RVEF and RVESV were measured and compared among all groups .Multi-factor Logistic regres-sion analysis was used to analyze independent risk factors of PE risk stratification .Results: Compared with normal control group and low-medium risk group ,there were significant rise in PAD [ (22.02 ± 1.33) mm vs .(24.42 ± 2.02) mm vs.(36.31 ± 2.12) mm] ,PASP [(22.28 ± 2.71) mmHg vs.(32.42 ± 4.83) mmHg vs.(84.57 ± 21.01) mmHg] ,right ventricular Tei index [(0.30 ± 0.04) vs.(0.40 ± 0.06) vs.(0.66 ± 0.05)] ,RVEDV [(68.08 ± 4.71) ml vs.(75.55 ± 7.88) ml vs.(123.29 ± 7.14) ml] and RVESV [ (29.33 ± 3.46) ml vs.(43.12 ± 6.11) ml vs. (87.01 ± 9.94) ml] ,and significant reductions in RVSV [ (37.79 ± 3.82) ml vs .(35.34 ± 1.89) ml vs .(33.12 ± 3.28) ml] and RVEF [(56.93 ± 3.00)% vs.(45.37 ± 4.88)% vs.(25.48 ± 4.92)% ] in high risk group ;and PAD , PASP ,right ventricular Tei index ,RVEDV and RVESV of low-medium risk group were significantly higher than those of normal control group ,and RVSV and RVEF of low-medium risk group were significantly lower than those of normal control group , P＝0. 001 all.Multi-factor Logistic regression indicated that PASP ,right ventricular Tei index and RVESV were independent risk factors for PE risk stratification (OR＝ 1.789～5.602 , P＜ 0.05 or ＜0.01).Conclusion:Echocardiography is of high clinical value in the evaluation of right ventricular function in PE , PASP ,right ventricular Tei index and RVESV can be used for risk stratification .