hypoxia
Introduction
Introduction Hepatopulmonary syndrome is a triad of pulmonary vasodilation and insufficient arterial oxygenation caused by primary liver disease. Insufficient pulse oxygenation is a respiratory disease. Because the pathogenesis is unknown, according to the practice of Western medicine, the main symptoms are named pulse oxygen deficiency. According to the theory of traditional Chinese medicine, it belongs to liver and blood deficiency, and it can be used for yoga. It will be very helpful.
Cause
Cause
The mechanism of hepatopulmonary syndrome and the decrease of oxyhemoglobin affinity, pulmonary telangiectasia caused by vasodilators such as prostaglandins, shunt in the lungs (arteriovenous and portal-pulmonary veins), limited diffusion of alveolar and capillary oxygen, ventilation / The imbalance of blood flow and the compression of the chest and ascites are related. The main lesions are pulmonary vasodilatation, pulmonary circulatory disorder, peripheral vascular bed in the lung and large movements in the proximal hilar, multiple anastomoses in the vein, and mixed venous blood to enter the pulmonary vein.
Examine
an examination
Related inspection
Angiography
Diagnosis of chronic liver disease, especially in patients with massive cirrhosis of ascites, with severe hypoxemia (PaO2) is mainly characterized by dyspnea and purpura. The clinical manifestations are cough and shortness of breath, low voice, self-sweat and fear of wind, susceptibility to external evils, shortness of breath, lack of strength, white face and fatigue, pale tongue and white veins, weak pulse. The treatment of qi deficiency is mainly to replenish lung. Lung deficiency and cough and asthma can be supplemented with lung soup or ginseng walnut soup; deficiency of lung and susceptibility can be used in Yupingfeng powder; patients with lung yang deficiency can use Baoyuan soup.
Diagnosis
Differential diagnosis
The pulse oxygen measurement is the oxygen saturation SpO2, which is the percentage of the oxygen-bound hemoglobin (HbO2) in the blood, which is the percentage of the total amount of hemoglobin (Hb) that can be bound, that is, the concentration of blood oxygen in the blood. Important physiological parameters of the respiratory cycle. Generally, it should not be lower than 94%, and there is hypoxia in less than 90%.
The disease should be differentiated from ascites caused by other causes (such as: constrictive pericarditis, tuberculous peritonitis, peritoneal cancer, etc.) and ascites and portal hypertension caused by advanced schistosomiasis.
Diagnosis of chronic liver disease, especially in patients with massive cirrhosis of ascites, with severe hypoxemia (PaO2) is mainly characterized by dyspnea and purpura.
