| ''Pranavaha srotas'' is a vital system of the body and although this ''srotas'' is more susceptible to abuse from little amount of smoke, allergens, adulterants, petrochemicals and many pollutants in atmosphere, there are a variety of disorders and diseases that are temporary and harmless, while others can be life threatening. In literature, ''pranavaha srotas'' disorders are elaborated under the heading of ''shwasa, kasa, hikka, rajayakshma'' and ''urakshata'' (''kshata-kshina''). Cough, expectoration, breathlessness, sore throat, chest pain are common clinical features of respiratory diseases. ''Kasa'' is one such disease, which is identified by the hoarse phonetic sound, produced due to the pathological process of ''doshadushti'' (vitiation of ''dosha''), ''vimarga gamana'' (diverted movement) of ''pranavata'' and ''avarana'' (occlusions) of ''vayu'' by the ''kapha''. The main pathology is in chest region with reduced functioning of the respiratory system. | | ''Pranavaha srotas'' is a vital system of the body and although this ''srotas'' is more susceptible to abuse from little amount of smoke, allergens, adulterants, petrochemicals and many pollutants in atmosphere, there are a variety of disorders and diseases that are temporary and harmless, while others can be life threatening. In literature, ''pranavaha srotas'' disorders are elaborated under the heading of ''shwasa, kasa, hikka, rajayakshma'' and ''urakshata'' (''kshata-kshina''). Cough, expectoration, breathlessness, sore throat, chest pain are common clinical features of respiratory diseases. ''Kasa'' is one such disease, which is identified by the hoarse phonetic sound, produced due to the pathological process of ''doshadushti'' (vitiation of ''dosha''), ''vimarga gamana'' (diverted movement) of ''pranavata'' and ''avarana'' (occlusions) of ''vayu'' by the ''kapha''. The main pathology is in chest region with reduced functioning of the respiratory system. |