End stage chronic obstructive pulmonary disease

Abstract

Many patients with chronic obstructive pulmonary disease (COPD) die each year as those with lung cancer but current guidelines make few recommendations on the care for the most severe patients i.e. those with Global Initiative for Chronic Obstructive Lung Disease (GOLD) stages III and IV with chronic respiratory failure. Only smoking cessation and long term oxygen therapy (LTOT) improve survival in COPD. Although non invasive positive pressure ventilation (NPPV) may have an adjunctive role in the management of chronic respiratory insufficiency there is little evidence for its use in the routine management of stable hypercapnic COPD patients. At difference, several prospective, randomised, controlled studies, systematic reviews and meta-analyses show good level of evidence for clinical efficacy of NPPV in the treatment of acute on chronic respiratory failure due to acute exacerbations of COPD. NPPV is also alternative to invasive ventilation for symptom relief in end stage COPD. Surgical interventions for end stage COPD like bullectomy, different modalities of lung volume reduction surgery and lung transplantation are likely to be of value to only a small percentage of patients. Nevertheless, there are specific indications, which, when added to pulmonary rehabilitation will further advance exercise capacity and quality of life. As in other chronic diseases when severity of disease increases along the natural history, therapy aimed to prolong life becomes less and less important in comparison to palliative therapy aimed to relieve symptoms. The most effective treatments for dyspnoea are bronchodilators, although also opiates may improve dyspnoea. Supplemental oxygen reduce exertional breathlessness and improve exercise tolerance in hypoxaemic COPD patients. There are difficulties in treating with antidepressant the frail and elderly COPD patients. Good clinical care can prevent or alleviate suffering by assessing symptoms and providing psychological and social support to the patients and their families.