Pulmonary compliance in smokers with special reference to goza smoking

ABSTRACT

As a material for this work 150 males were studied. 120 of them were smokers and 30 were non-smokers controls. They were studied through the following methods: a] careful history taking and thorough clinical examination. b] radiologic study. c] spirometry. d] static pulmonary compliance measurements. From this work it can be concluded that 1- smoking is associated with reduction of the pulmonary compliance in subjects with normal ventilatory function [the mean values of pulmonary compliance in smokers and non-smokers were 0.028 L/CmH[2]O/L V.C. and 0.037 L/CmH[2]O/L.V.C. respectively]. The pulmonary compliance is correlated with the subjects, total consumption of cigarettes, goza and both cigarettes and goza together. Its values differ according to the type of smoking, it has the lowest values in goza smokers [0.043 +/- 0.015] and the highest values in both cigarette and goza consumers [0.062 +/- 0.025]. In cigarette smokers its values occupied intermediate position [0.045 +/- 0.015 L/CmH[2]O/L. V.C.]. 2- Reversed relationship was found between the pulmonary compliance and each of MBC% and FEV% in all subjects of the study while a direct relationship was found between the pulmonary compliance and FVC in subjects with normal ventilatory function. 3- The subjects of total consumption of each of cigarettes, goza and both cigarettes and goza were found to be directly related to the severity of dyspnea and reversely related to each of FEV% and MBC%