Chen Gongquan
Minda Hospital of Hubei Nationalities Intitute, Enshi 445000, China.
Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi. 2014 Dec;32(12):931-3.
To investigate the value of tissue Doppler imaging (TDI) in the diagnosis of right ventricular hypertrophy in patients with silicosis complicated by chronic pulmonary heart disease.
A total of 50 cases of silicosis complicated by chronic pulmonary heart disease in our hospital underwent conventional electrocardiography (ECG) and TDI. The detection rates for right ventricular hypertrophy by two methods were compared.
Of 50 cases of silicosis complicated by chronic pulmonary heart disease, 19 were diagnosed with right ventricular hypertrophy by ECG, with a detection rate of 38.0%; 29 were diagnosed with right ventricular hypertrophy by TDI, with a detection rate off 58.0%. Statistical analysis suggested that TDI leads to a significantly higher detection rate for right ventricular hypertrophy in patients with silicosis complicated by chronic pulmonary heart disease (χ² = 4.006, P = 0.036).
Both TDI and ECG can be used for detecting right ventricular hypertrophy in patients with silicosis complicated by chronic pulmonary heart disease, but the detection rate is higher when TDI is employed. In addition, ECG cannot directly reflect the increase in pulmonary artery pressure. Therefore, TDI is more suitable for the diagnosis of right ventricular hypertrophy in patients with silicosis complicated by chronic pulmonary heart disease and provides a strong diagnostic basis for the clinical treatment of silicosis complicated by pulmonary heart disease.
探讨组织多普勒成像（TDI）在矽肺合并慢性肺心病患者右心室肥厚诊断中的价值。
我院50例矽肺合并慢性肺心病患者接受了常规心电图（ECG）和TDI检查。比较两种方法对右心室肥厚的检出率。
50例矽肺合并慢性肺心病患者中，心电图诊断右心室肥厚19例，检出率为38.0%；TDI诊断右心室肥厚29例，检出率为58.0%。统计学分析表明，TDI对矽肺合并慢性肺心病患者右心室肥厚的检出率显著更高（χ² = 4.006，P = 0.036）。
TDI和ECG均可用于检测矽肺合并慢性肺心病患者的右心室肥厚，但采用TDI时检出率更高。此外，ECG不能直接反映肺动脉压力的升高。因此，TDI更适合用于矽肺合并慢性肺心病患者右心室肥厚的诊断，为矽肺合并肺心病的临床治疗提供了有力的诊断依据。
