慢性阻塞性肺疾病(COPD)患者常伴有营养不良,系由慢性基础肺疾病长期消耗或急性严重肺部感染的高代谢状态所致,临床表现为呼吸肌萎缩,收缩力下降,耐力降低以及肺防御机能减退等,肺表面活性物质减少,每使肺泡易于萎陷,而严重营养不良则可使呼吸中枢对缺氧和高碳酸血症的反应性减 Patients with chronic obstructive pulmonary disease (COPD) are often associated with malnutrition due to the chronic metabolic state of long-term chronic lung disease or acute severe pulmonary infection, with respiratory manifestations of muscle atrophy, decreased contractility, decreased endurance, and Lung defense dysfunction, decreased lung surfactant, each alveolar prone to collapse, and severe malnutrition can make the respiratory center hypoxia and hypercapnia reactivity minus