常规12导联心电图胸导联QRS波低电压患者的临床特征.

ObjectiveTo investigate the clinical characteristics of patients with low QRS voltage in precordial leads of routine 12-lead ECG. MethodsRetrospective analysis was performed on 131 patients examined by routine 12-lead ECG and diagnosed with low voltage in precordial leads during hospitalization. We observed their clinical characteristics. Results Among the 131 patients, there are 65 cases (49.62%) with low voltage in all precordial leads, and 52 cases (39.69%) with low voltage in all limb leads. Coronary heart disease complicated by cardiac insufficiency is the most common underlying disease (26 cases, accounting for 19.85%), followed by malignant tumor (23 cases, accounting for 17.56%) among which lung cancer accounts for the largest proportion (9 cases, accounting for 6.87%). A total of 45 cases (34.35%) are accompanied with anemia and 40 cases (30.53%) are complicated by hypoproteinemia. The average level of blood hemoglobin and blood albumin are both below the normal range. Conclusion Coronary heart disease complicating cardiac insufficiency is the most common underlying disease of patients with low QRS voltage in precordial leads of routine 12-lead ECG, and most of these patients have complications affecting QRS voltage. [ABSTRACT FROM AUTHOR]