Abstract:
BACKGROUND:Existing medical treatments have limitations in the management of very severe chronic obstructive pulmonary disease (COPD). METHODS:We performed bronchoscopic lung volume reduction (BLVR) using transbronchial infusion of autologous blood and thrombin (BLVR with blood) in three patients with very severe COPD whose dyspnea could not be relieved by maximum medical management. Two patients underwent BLVR with blood in the left and right lungs at intervals of a half-year or a year, and one patient underwent this procedure in only the right lung. We assessed the changes in pulmonary function, exercise capacity and quality of life before and after BLVR with blood in a total of five procedures. RESULTS:The subjects were 58- to 74-year-old males. Their forced expiratory volume in one second (FEV1) percent predicted ranged from 14.8% to 23.4%. BLVR with blood achieved significant improvements as follows (values before → after the procedure, mean ± standard deviation): FEV1 0.45r the L → 0.76r the L (P=0.004), inspiratory capacity 1.50cityo L → 2.05±.05c L (P=0.015), 3-minute walk test 46.8nuteo m → 89.6±34.5 m (P=0.004). Lung function peaked several months after BLVR with blood and returned to nearly the baseline level in 6 months, but exercise capacity was better than that at baseline for at least 12 months. St. George's Respiratory Questionnaire (SGRQ), measured in two patients before and 12 months after the procedure, showed remarkable improvements (-15.6 and -11.9 units). CONCLUSIONS:BLVR with blood is an effective palliative treatment for very severe COPD.
journal_name
J Thorac Disjournal_title
Journal of thoracic diseaseauthors
Mizumori Y,Mochiduki Y,Nakahara Y,Kawamura T,Sasaki S,Morimoto A,Tsukamoto Hdoi
10.3978/j.issn.2072-1439.2015.01.10subject
Has Abstractpub_date
2015-03-01 00:00:00pages
413-21issue
3eissn
2072-1439issn
2077-6624pii
jtd-07-03-413journal_volume
7pub_type
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