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  • Title: [Comparative statistical study of global and local functional respiratory data in 2 groups of patients with pulmonary or pleural tuberculosis].
    Author: Bedu M, Gaillard JP, Gongora G, Roy M, Gongora R, Korobaeff M, Drutel P.
    Journal: Rev Pneumol Clin; 1984; 40(3):173-8. PubMed ID: 6463501.
    Abstract:
    Two groups of patients with unilateral tuberculosis, either pulmonary (36 cases) or pleural (75 cases) were studied. The clinical and functional results were compared statistically. These two groups were similar in terms of age, sex, tobacco consumption, the radiological unilaterality of their disease and the global reduction of respiratory function (assessed by VC, FEV1, TPC and TLCO), which can be considered to be essentially due to the local disease. In both groups, the radiological image (extent of the lesion, shape of the lesion) is the only clinical factor statistically related to the functional values. The two groups differ in terms of two functional parameters which reflect different pathophysiological mechanisms in the affected lung. The group with pulmonary tuberculosis presents an obstructive ventilatory syndrome (reduction of the FEV1/VC ratio and increase in the RV/TPC ratio), which reflects the bronchial involvement in the disease. The group with pleural tuberculosis presents a pulmonary distention (increased RV/TPC ratio), which is related to disturbed transmission of the pleural pressure to ventilated alveolar zones. Secondly, in the group with pulmonary tuberculosis, the ventilation and perfusion deficits are equivalent, while in the pleural tuberculosis group, the ventilatory deficit is predominant. Thus the global reduction in ventilatory function which is the same in the two group is caused by fundamentally distinct pathophysiological mechanisms in the two groups of patients.
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