hat
Anplis de sa, selil yo muko-pwodui proliferasyon nan mi yo nan bronchi la ak pwodwi pi di larim, ki pa ka ase yo retire nan sil yo domaje. Gen akimilasyon nan larim ak anflamasyon nan bukoyal mukoza a. Sa a se etap refere yo kòm bwonchit kwonik obstriktif, paske nan adisyon a enflamasyon an kwonik gen yon konble (blokis) nan bronchi la. Chanjman sa yo afekte absorption oksijèn nan san an. Pasyan pote plent nan detrès respiratwa ogmante - okòmansman sèlman pandan egzèsis, men Lè sa a, nan rès - ak yon n bès jeneral nan pèfòmans.
eng
In addition, the mucus-producing cells proliferate in the walls of the bronchi and produce tougher mucus, which can not be sufficiently removed by the damaged cilia. There is accumulation of mucus and swelling of the bronchial mucosa. This stage is referred to as chronic obstructive bronchitis, because in addition to the chronic inflammation there is a narrowing (obstruction) of the bronchi. These changes affect oxygen uptake into the blood. Patients complain of increased respiratory distress - initially only during exercise, but then at rest - and a general decline in performance.