心电图P波垂直化对筛查慢性阻塞性肺疾病的研究

Study on P-wave vertical transformation in screening chronic obstructive pulmonary disease

目的探讨心电图P波垂直化对筛查慢性阻塞性肺疾病的临床价值。方法本研究以本院门诊就诊、体检科健康体检和企业职业健康体检人群作为研究对象,选取115例心电图额面P波电轴(?P)>70°的人群作为研究组(P波垂直化),选取117例心电图?P电轴≤50°人群作为对照组,进行比较研究。所选人群进行肺功能检查,确定每组慢性阻塞性肺疾病的例数。结果研究组受试者COPD诊断91例(79.13%),显著高于对照组患者15例(12.82%),差异有统计学意义(χ~2=102.766,P<0.001)。研究组受试者FEV1/FVC显著低于对照组,差异有统计学意义(t=18.061,P<0.001)。结论心电图P波垂直化是慢性阻塞性肺疾病重要的筛查指标。

Objective To investigate the clinical value of P-wave vertical transformation in screening chronic obstructive pulmonary disease.Methods In this study,populations from outpatient,physical examination department and occupational health examination were selected as the research objects. 115 cases whose the angle of P-wave on the frontal surface of the electrocardiogram greater than 70 degrees were selected as experimental group（ vertical P-wave axis） and 117 cases whose the angle of P-wave on the frontal surface of the electrocardiogram less than 50 degrees were selected as control group. A comparative examination was conducted between two groups. Lung function tests were conducted to determine the number of cases of chronic obstructive pulmonary disease in each group.Results 91 cases of the 115 cases in experimental group（ 79%） and 15 cases of the 117 cases in control group（ 12. 8%） were diagnosed as the chronic obstructive pulmonary disease. The differences between two groups was statistically significant（ χ^2= 102.766,P〈0.01）. The FEV1/FVC of the study group was significantly lower than that of the control group（ P〈0.001）.Conclusions Vertical P-wave axis is an useful screening quota for COPD.