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F Pivirotto

Publications and source records attributed to F Pivirotto.

26 records · Page 2Linked to original sources
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[Transtracheal oxygen therapy with oxycath: introduction technic, complications, results in 12 treated patients].

Continuous oxygen therapy is essential in the treatment of advanced chronic obstructive pulmonary disease (COPD). A transtracheal oxygen administration system is more effective in the rehabilitation of these patients than are traditional systems, nasal canula or Venturi mask devices. In the present work the authors describe a simple technique for introducing the transtracheal catheter. The procedure is performed under local anesthesia and a Teflon catheter is inserted between the second and third tracheal rings. In a case study of 12 patients the complications encountered included purulent drainage of the skin tract and accidental displacement of the transtracheal catheter. No procedure related deaths were incurred. Subjectively, the patients experience a sensation of being able to breathe more easily, thus resulting in increased outdoor activity.

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Pathogenesis of late asthmatic reactions induced by exposure to isocyanates.

The importance of airways inflammation for the development of bronchial hyperresponsiveness and for exacerbation of asthma was investigated in subjects with occupational asthma. We examined subjects sensitized to isocyanates, a small molecular weight compound that causes occupational asthma. Studies in asthmatic subjects sensitized to toluene diisocyanate (TDI) demonstrated that late, but not early, asthmatic reactions induced by TDI were associated with an acute increase in bronchial responsiveness, and with a marked infiltration of neutrophils and a slight infiltration of eosinophils into the airways, both prevented by steroids. As the late asthmatic reactions and the increase in responsiveness induced by TDI were prevented by steroids, but not by indomethacin, we speculated that cell membrane phospholipid metabolites, which are inhibited by steroids but not by indomethacin, may be involved in TDI induced hyperresponsiveness. The results of these studies suggest that bronchial hyperresponsiveness and exacerbation of asthma may be related to inflammation of the airways and that cell membrane phospholipid metabolites may be involved.

Anti-Inflammatory Agents↗