氧气并非“多多益善” 盲目氧疗可能引发氧中毒

Core Viewpoint - The National Health Commission emphasizes the importance of oxygen therapy, highlighting that while oxygen is essential for life, excessive use can lead to health risks such as oxygen toxicity and lung damage [1] Summary by Categories Oxygen Therapy and Health - The emergence of portable oxygen concentrators has increased the prevalence of oxygen therapy [1] - Healthy individuals typically meet their metabolic needs through normal breathing, and excessive oxygen intake can disrupt this balance [1] - Symptoms of oxygen toxicity include chest pain, cough, and difficulty breathing, with long-term high-concentration oxygen use potentially causing lung injury and retinal damage [1] Target Populations for Oxygen Therapy - Primary groups that may require home oxygen therapy include: - Patients with chronic respiratory diseases such as chronic obstructive pulmonary disease (COPD), interstitial lung disease, and obstructive sleep apnea [1] - Cardiovascular disease patients experiencing significant myocardial hypoxia, where timely oxygen intake can alleviate symptoms [1] - Individuals in high-altitude environments, where oxygen can effectively prevent hypoxic damage [1] Guidelines for Oxygen Therapy - It is crucial to understand that higher flow rates and concentrations are not necessarily better; long-term high-concentration oxygen can lead to toxicity and lung tissue damage [1] - Scientific oxygen therapy should adhere to the principle of "supplying as much as needed," rather than pursuing high flow or concentration [1] - Patients requiring oxygen therapy should select appropriate methods and parameters under medical evaluation and blood oxygen monitoring to achieve effective home oxygen therapy [1]