Diagnostic criteria for chronic cor pulmonale_The main basis for diagnosing early cor pulmonale is

Cor pulmonale is a disease that affects both the lungs and the heart. Once you suffer from cor pulmonale, it can cause great harm to your body. It can not only induce respiratory failure, but may also cause other complications. To reduce the occurrence of this disease, you need to do a good job of prevention in normal times. To treat cor pulmonale, you need to understand the clinical diagnostic criteria so that you can better treat it.

What are the diagnostic criteria for chronic cor pulmonale?

The diagnosis of cor pulmonale is mainly based on the main causes including chronic obstructive pulmonary disease, thoracic movement disorders, pulmonary vascular disease, etc. The clinical manifestations mainly include the main manifestations of the compensation and decompensation stages, and the diagnosis is confirmed through X-ray examinations, electrocardiograms, echocardiograms, blood gas analysis, and blood tests. At the same time, the diagnosis of cor pulmonale must also be differentiated from coronary heart disease, rheumatic heart disease, and primary cardiomyopathy.

First, the cause of the disease. Chronic obstructive pulmonary disease is the most common cause of cor pulmonale, followed by thoracic movement disorders. Pulmonary vascular disease is relatively common, often causing pulmonary vascular spasm, stenosis or occlusion, increased circulatory resistance, pulmonary hypertension, and ultimately developing into cor pulmonale.

Second, clinical manifestations.

1. The clinical manifestations of the compensatory stage mainly include the manifestations of the primary disease: recurrent expiratory dyspnea in asthma and progressive dyspnea in emphysema. Signs of pulmonary hypertension: The earliest measurement of pulmonary hypertension is greater than 25 at rest and greater than 30 during activity, and the second heart sound in the pulmonary valve area is hyperactive. Signs of right ventricular hypertrophy, apical beats under the xiphoid process or heart sounds in the apical area less than or equal to the heart sounds under the xiphoid process, and systolic murmurs in the tricuspid valve area.

2. Clinical manifestations of decompensation: cor pulmonale often occurs in type 2 respiratory failure, mainly right heart failure.

Third, laboratory examination. X-ray examination included dilatation of the right inferior pulmonary artery trunk with a transverse diameter greater than or equal to 15 mm, dilatation of the central pulmonary artery and slender peripheral branches, moderate protrusion of the pulmonary artery segment or its height greater than or equal to 3 mm, right ventricular hypertrophy, and upturned left apex. Electrocardiogram examination included right axis deviation, RV1+SV5>1.05mv, and pulmonary-type p waves. Echocardiography revealed a right and left ventricular diameter ratio of <2. Blood gas analysis shows that the arterial oxygen partial pressure is less than or equal to 60 mmHg, and the arterial carbon dioxide partial pressure is greater than or equal to 50 mmHg. Blood examination shows that when combined with respiratory tract infection, the white blood cell count increases and the proportion of neutrophils increases.

We should understand the diagnostic criteria of cor pulmonale as early as possible and conduct active and comprehensive examinations. If cor pulmonale occurs suddenly, timely treatment should be provided to relieve the patient's pain and reduce the mortality rate of patients with cor pulmonale. At the same time, patients with cor pulmonale should pay attention to avoiding emotional excitement, avoid excessive fatigue, keep a good mood, avoid staying up late, pay attention to the combination of work and rest, strengthen nutrition, and enhance physical fitness.