慢性支氣管炎Chronic Bronchitis

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慢性支氣管炎Chronic Bronchitis

　　Chronic Bronchitis

　　慢性支氣管炎

　　Chronic bronchitis is a condition associated with excessive tracheobronchia mucus production sufficient to cause cough with expectoration for at least 3 months of the year for more than 2 consecutive years. Several subclassifications have been proposed: ①simple chronic bronchitis describes a condition characterized by mucoid sputum production; ②chronic mucopurulent bronchitis is characterized by persistent or recurrent purulence of sputum in the absence of localized suppurative diseases such as bronchiectasis; ③chronic bronchitis with obstruction deserves a separate classification characterized by presence of airway obstruction as assessed by the used of the forced expiratory vital capacity maneuver; and ④chronic asthmatic bronchitis. The patient with chronic asthmatic bronchitis has a long history of cough and sputum production with a later onset of wheezing, whereas the asthmatic with chronic obstruction gives a long history of wheezing with later onset of chronic productive cough. form www.med66.com

　　由于氣管、支氣管粘液分泌過多，引起咳嗽咯痰，1年中至少有3個(gè)月并連續(xù)2年以上者，稱為慢性支氣管炎。它可以分為以下幾種類型：①單純性慢性支氣管炎，其特征為咳粘液性痰；②慢性粘液膿性支氣管炎，其特征是反復(fù)的或持續(xù)的咳膿痰，但肺部并無化膿性病變，如支氣管擴(kuò)張；③慢性支氣管炎伴阻塞，其特征為用力呼氣肺活量測定時(shí)有氣道阻塞的表現(xiàn)；④慢性哮喘性支氣管炎，其特征是患者有長期的咳嗽及咯痰史，后來肺部出現(xiàn)哮鳴者，因此與哮喘伴慢性氣管阻塞的病人不同。后者是長期有哮鳴者，后來才出現(xiàn)慢性咳痰。

　　From Internal Medicine