Comparative analysis of electrocardiogram and echocardiogram for patients with chronic obstructive pulmonary disease complicated with chronic cor pulmonale

doi:10.3877/cma.j.issn.1674-6902.2019.06.004

Abstract

Abstract:

Objective

To analyze the characteristics of echocardiography (ECG) and echocardiogram for the patients with chronic obstructive pulmonary disease (COPD) complicated with chronic cor pulmonale.

Methods

A retrospective analysis was made on 48 patients with COPD complicated with chronic cor pulmonale as the observation group and 32 patients with COPD without any cardiovascular disease as the control group. The characteristics of ECG and electrocardiogram were analyzed and the diagnostic value of the two examinations for chronic cor pulmonale was studied.

Results

There were no significant differences in age, sex, course of disease or smoking history between the two groups (P>0.05). For the control group, the abnormalities of ECG were shown as atrial premature beat in 18.75% of the patients, right bundle branch block in 6.24%, clockwise transposition in 6.24%, low voltage of limb lead in 6.24%, right ventricle and hypertrophy in 3.12%, but pulmonary P wave, right axis deviation or supraventricular tachycardia was not found. While for the observation group, the abnormalities of ECG were shown as atrial premature beat in 33.33% of the patients, right axis deviation in 29.64%, conduction block in 22.91%, limb lead low voltage in 22.92%, pulmonary P wave in 14.58%, clockwise transposition in 10.41%, and supraventricular tachycardia in 8.30%. Obviously, the incidence of abnormal ECGs was significantly higher in the observation group than the control group (P<0.05). Echocardiographic examination showed that the values of RA and RV in the observation group were higher than those of the control group (P<0.05). The detection rate of ECG for cor pulmonale was 54.17%, and that of echocardiography was 85.42%, which was significantly higher than that of ECG (P<0.05).

Conclusion

ECG and echocardiography are important methods to detect heart diseases. They have their own advantages and disadvantages. On the basis of the results of ECG and echocardiography, doctors can detect and diagnose COPD early according to the patient′s conditions, so as to improve the diagnosis and treatment level of COPD complicated with chronic cor pulmonale.

Key words: Chronic obstructive pulmonary disease, Chronic cor pulmonale, Electrocardiogram, Echocardiography

Zhan Gao, Wei Wang, Huaping Chen, Xinxian Xu, Yu Liu, Yuhang Guo, Ming Yuan, Mingzhou Zhang, Zhenghua Wei, Xiaolian Cai. Comparative analysis of electrocardiogram and echocardiogram for patients with chronic obstructive pulmonary disease complicated with chronic cor pulmonale[J]. Chinese Journal of Lung Diseases(Electronic Edition), 2019, 12(06): 687-690.

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References 28

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项　目	COPD	COPD+肺心病
肺型P波	0	7(14.58)^a
右心室肥大	1(3.12)	7(14.58)^a
右束支传导阻滞	2(6.24)	11(22.91)^a
顺钟向转位	2(6.24)	5(10.41)^a
肢体导联低电压	2(6.24)	11(22.92)^a
电轴右偏	0	14(29.64)^a
房性早搏	6(18.75)	16(33.33)^a
室上速	0	4(8.30%)^a

项　目	COPD	COPD+肺心病
肺型P波	0	7(14.58)^a
右心室肥大	1(3.12)	7(14.58)^a
右束支传导阻滞	2(6.24)	11(22.91)^a
顺钟向转位	2(6.24)	5(10.41)^a
肢体导联低电压	2(6.24)	11(22.92)^a
电轴右偏	0	14(29.64)^a
房性早搏	6(18.75)	16(33.33)^a
室上速	0	4(8.30%)^a

组　别	RA(mm)	RV(mm)	RVAWT(mm)	MPA(mm)
COPD	35.41±5.02	33.93±3.95	5.87±0.64	23.04±2.68
COPD+肺心病	40.93±8.45^a	39.03±6.71^a	6.04±0.35	25.55±5.55

组　别	RA(mm)	RV(mm)	RVAWT(mm)	MPA(mm)
COPD	35.41±5.02	33.93±3.95	5.87±0.64	23.04±2.68
COPD+肺心病	40.93±8.45^a	39.03±6.71^a	6.04±0.35	25.55±5.55

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