THE EFFECT OF LOW MOLECULAR WEIGHT HEPARIN SODIUM IN THE TREATMENT OF ACUTE EXACERBATION OF CHRONIC OBSTRUCTIVE PULMONARY DISEASE COMORBID WITH PULMONARY HEART DISEASE ON PROMOTING THE BALANCE OF BLOOD VESSELS.

Chronic obstructive pulmonary disease is a frequently occurring and common respiratory disease which has an incidence of 13.7% among people over 40 years in China, and now nearly 100 million people at home suffer from chronic obstructive pulmonary disease. To observe the effect of Low molecular weight heparin sodium in the treatment of acute exacerbation of chronic obstructive pulmonary disease (AECOPD) comorbid with pulmonary heart disease (PHD) on blood vessels.