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For a long time, primary tumors arising less than 2 cm distal to the carina have presented a contraindication to surgical excision. Tracheal sleeve pneumonectomy technique allows carinal resection and reconstruction but still carries considerable postoperative complications. From 1983 to 1992 we performed 27 right tracheal sleeve pneumonectomies and one(More)
In this study, 5'NT activity was investigated by radiochemical and cytochemical assays in T cell subpopulations of patients with multiple myeloma (MM). Cytotoxic/suppressor (CD8) and helper/inducer (CD4) lymphocytes were separated from peripheral blood by the panning technique, or sorted with a fluorescein activated cell sorter. 5'NT activity was(More)
The Authors studied in 10 patients during mechanical ventilation the effects of the application of heat and moisture exchanger (HME) in the presence of constant TV and frequency. They observed an increase of PaCO2 and PE, CO2 during the use of HME; this is due to Vd/Vt increase. The Authors conclude that it is mandatory to increase the total ventilation(More)
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