EMFIZEMAI ShUSh, bemoriest, ki zimni on shush vase va kamharakat shuda, nafaskashiyu gprdishi khunvayron meshavad. E. sh. modarzodiyu gayrimodarzodi, mahdudu gusturda va shadidu muzmin meshavad.
E. sh.-i gayrimodarzodi dar natijai vayronshavii qobiliyati guzaronandagii bronkhho (mas., hangomi ziqqi nafas) paydo meshavad. E. sh.-i gusturdai muzmin aksar chun boqi bronkhiti muzmin, ziqqi nafas, inevmoskleroz, pnevmokonizho va dig. bemorihoi sistemai bronkhu shush (dar natijai ikhtiloli qobiliyati guzaronandagii bronkhho va sustshavii qobiliyati chandirii boftahoi shush) ba vujud meoyad. Sulfai balgamnok va damkutohi zuhuroti E.sh. meboshand.