非喫煙者における慢性閉塞性肺疾患
Sundeep S Salvi1, Peter J Barnes
1Chest Research Foundation, Pune, India. ssalvi@crfindia.com
Lancet (London, England)
|September 1, 2009
まとめ
バイオマス煙への曝露は,数十億人に影響する慢性阻害性肺疾患 (COPD) の主要な世界的な原因である可能性があります. このレビューは,バイオマス燃料,職業的曝露,感染症を含む,タバコの喫煙以外の様々なCOPDリスク要因を調査しています.
科学分野:
- 肺内医学 肺内医学 肺内医学
- 環境衛生 環境衛生 環境衛生
- エピデミオロジー エピデミオロジー
背景:
- 慢性阻害性肺疾患 (COPD) は,世界的な健康上の重大な負担であり,広範な罹病率と死亡率を引き起こしています.
- タバコの喫煙が主な危険因子である一方で,COPDの症例の大部分は,特に開発途上国では,決して喫煙していない人に起こります.
- これは,非伝統的なCOPDリスク要因を特定し理解することの重要性を強調しています.
研究 の 目的:
- 様々な環境的および職業的曝露とCOPDの発生との関連に関する証拠をレビューし,統合する.
- COPDの潜在的主要な世界的な危険因子として,バイオマス燃料の煙が果たす重要な役割を強調する.
- 職業上の塵,感染症,大気汚染などの他の要因を調査する.
主な方法:
- 既存の疫学研究と科学文献の体系的なレビュー.
- バイオマス燃料の煙とタバコの喫煙との間の接触に関する世界人口のデータ分析.
- COPDとバイオマス煙,職業的曝露,幼児感染,喘息,大気汚染を含む要因との関連に関するエビデンスの合成.
主要な成果:
- COPD患者の約25~45%は喫煙したことがないと推定されており,これは非喫煙者のCOPDの負担が大きいことを示している.
- 約30億人の人々がバイオマス燃料の煙にさらされており,それが世界で最も重要な世界的なCOPDリスク要因になる可能性があります.
- 関連性は,バイオマス燃料,職業的曝露,結核病歴,喘息,幼児期呼吸器感染症,屋外大気汚染,社会経済的地位について検討されました.
結論:
- バイオマス燃料からの煙への曝露は,世界的にCOPDの重要な,認識されていない危険因子です.
- 非喫煙によるCOPDの発生率は高いため,危険因子に関するより広範な理解が必要である.
- 公共衛生の戦略は,特に開発途上国におけるバイオマスの煙への曝露に対処し,世界的なCOPDの負担を軽減すべきである.
関連する概念動画
Chronic Obstructive Pulmonary Disease
COPD is defined as a heterogeneous lung condition marked by persistent respiratory symptoms such as dyspnea, cough, and sputum production, caused by abnormalities in the airways that cause airflow obstruction.
Smoking is a primary risk factor for COPD, with over 80% of patients having a history of it. Patients typically experience progressive dyspnea or labored breathing, frequent coughing, and recurrent pulmonary infections. Many eventually succumb to respiratory failure, characterized by...
Smoking is a primary risk factor for COPD, with over 80% of patients having a history of it. Patients typically experience progressive dyspnea or labored breathing, frequent coughing, and recurrent pulmonary infections. Many eventually succumb to respiratory failure, characterized by...
Chronic Obstructive Pulmonary Disease I: Introduction
Chronic obstructive pulmonary disease is a common, preventable, and treatable respiratory disorder characterized by persistent symptoms and progressive airflow limitation. This limitation results from a combination of small-airway disease (obstructive bronchiolitis) and parenchymal destruction (emphysema), both driven by chronic inflammation from exposure to harmful particles or gases.The disease includes two main pathological entities: emphysema, marked by destruction of alveolar walls and...
Chronic Obstructive Pulmonary Disease III: Chronic Bronchitis Features
Chronic bronchitis is a key phenotype of chronic obstructive pulmonary disease (COPD), characterized by airway-centered inflammation and mucus overproduction. It develops from long-term exposure to harmful particles or gases, most commonly cigarette smoke, which triggers a persistent inflammatory response.Cellular and Structural ChangesInflammation initially affects the large bronchi and later the smaller airways, with infiltration by immune cells, including neutrophils, macrophages, and...
Chronic Obstructive Pulmonary Disease-I: Introduction
Chronic Obstructive Pulmonary Disease (COPD) is a long-lasting respiratory condition requiring continuous attention and care. It is a progressive lung disease that leads to breathing challenges due to airflow obstruction. It manifests as persistent respiratory symptoms and restricted airflow resulting from abnormalities in the airways and alveoli, usually due to long-term exposure to harmful particles or gases. COPD mainly consists of two primary conditions: emphysema and chronic bronchitis.
Chronic Obstructive Pulmonary Disease-II: Pathophysiology
Chronic Obstructive Pulmonary Disease (COPD) pathophysiology is intricate and multifaceted, involving a complex interplay of physiological processes. Understanding these mechanisms is crucial for effectively managing and treating COPD. Here is an in-depth look at the critical elements in the pathophysiology of COPD:
Chronic Inflammation
Chronic Inflammation
Chronic Obstructive Pulmonary Disease II: Emphysema
Emphysema, a major phenotype of chronic obstructive pulmonary disease (COPD), is characterized by irreversible destruction of alveolar walls and permanent enlargement of distal airspaces. Unlike chronic bronchitis, which primarily affects the airways, emphysema predominantly involves the lung parenchyma, where structural damage leads to airflow limitation.PathophysiologyIt most commonly results from prolonged exposure to cigarette smoke and other toxic gases, particularly cigarette smoke.
