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Lung transplantation, or pulmonary transplantation is a surgical procedure in which a patient's diseased lungs are partially or totally replaced by lungs which come from a donor. Donor lungs can be retrieved from a living donor or a deceased donor. A living donor can only donate one lung lobe. With some lung diseases a recipient may only need to receive a single lung. With other lung diseases such as cystic fibrosis it is imperative that a recipient receive two lungs. While lung transplants carry certain associated risks, they can also extend life expectancy and enhance the quality of life for end-stage pulmonary patients. ==Qualifying conditions== Lung transplantation is the therapeutic measure of last resort for patients with end-stage lung disease who have exhausted all other available treatments without improvement. A variety of conditions may make such surgery necessary. As of 2005, the most common reasons for lung transplantation in the United States were: *27% chronic obstructive pulmonary disease (COPD), including emphysema; *16% idiopathic pulmonary fibrosis; *14% cystic fibrosis; *12% idiopathic (formerly known as "primary") pulmonary hypertension; *5% alpha 1-antitrypsin deficiency; *2% replacing previously transplanted lungs that have since failed; *24% other causes, including bronchiectasis and sarcoidosis. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「lung transplantation」の詳細全文を読む スポンサード リンク
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