Résumé
Twenty five heavy smokers were undergoing special protocol in trial of quid smoking. The lung function test and blood gases analysis were done before and after 48 hours cease smoking. Improvement of lung function and blood gases were detected in 10 subjects. Other 15 subjects had bad tremour, hard feeling, nervousness and complain of tightness. All these psychcological feelings compared with detectable airway obstruction and bad ventilation. However both groups had slight improvement in diffusion function which was shown in impvement of oxyheamoglobin level and position of 02-dissociation curve. However the psychcological and physical changes in those 15 subjects suggested as a yesponse to missing their cigarette and due to their feeling of imposible. Therefore psychological and biochemical treatment are necessary for this group to help them succeed in quid smoking