Pulmonary dyspnea

Introduction Pulmonary dyspnea: When the respiratory organs themselves develop lesions, gas inhalation and discharge disorders, lung respiratory area decreases, lung tissue elasticity decreases, oxygen deficiency in the blood, carbon dioxide increases, resulting in respiratory center excitement, such as narrow airway Disease, chronic alveolar emphysema, various pneumonia, pulmonary edema, pleuropneumonia, pleurisy, etc. In addition, it can also be seen in some infectious diseases, such as swine plague, swine gasping, chicken bronchitis and so on. May be accompanied by abnormal breath sounds or pathological breath sounds.

Cause

Pneumatic dyspnea is common in:

1, airway obstruction: such as inflammation of the larynx, trachea, bronchus, edema, stenosis or obstruction caused by tumor or foreign body and bronchial asthma, chronic obstructive pulmonary disease.

2, lung diseases: such as pneumonia, lung abscess, tuberculosis, atelectasis, pulmonary congestion, pulmonary edema, diffuse pulmonary interstitial disease, bronchioloalveolar cancer.

3, chest wall, thoracic, pleural cavity diseases: such as chest wall inflammation, severe thoracic deformity, pleural effusion, spontaneous pneumothorax, extensive pleural adhesions, tuberculosis, trauma and so on.

4, neuromuscular diseases: such as polio involving the cervical spinal cord, acute multiple radiculitis neuritis and myasthenia gravis involving the respiratory muscles, drugs lead to respiratory muscle paralysis.

5, dyskinesia: such as phlegm, a large number of peritoneal effusion, huge abdominal tumor, gastric dilatation and late pregnancy.

an examination

Related inspection

Respiratory exercise check for peak expiratory flow (PEFR)

Laboratory examinations must be summarized and analyzed based on objective materials and medical examinations, and several possible diagnostics are proposed, and then further examinations are performed to confirm the diagnosis. Such as: lung function test, cardiac function test, lung X-ray film, arterial oxygen partial pressure PaCO2, carbon dioxide partial pressure PaCO2 and other tests.

Differential diagnosis

Differential diagnosis:

(1) Abdominal pressure increased dyspnea: In the case of acute gastric dilatation, ascites, etc., the abdomen exerts tremendous pressure on the chest, which hinders respiratory movement and leads to difficulty in breathing. It can be seen from the above that there are many reasons for dyspnea, and clinical analysis should be comprehensive.

(2) Cardiac dyspnea: due to abnormal cardiac function, leading to circulatory dysfunction, especially in pulmonary circulatory disorders, ventilation is affected, oxygen and carbon dioxide inhalation and discharge disorder, resulting in mixed dyspnea, can be seen in heart failure, Myocarditis, pericarditis and endocarditis.

(3) Blood-borne dyspnea: due to the decrease in the number of red blood cells or hemoglobin degeneration in the blood, the oxygen-carrying capacity is reduced, and the blood oxygen is insufficient, resulting in difficulty in breathing, which can be seen in various types of anemia.

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