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JAMA. 1931;97(16):1163-1164. doi:10.1001/jama.1931.02730160045022.
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The Jacobaeus Operation  Dr. Pardo Mêo recently reported before the Sociedade de Medicina e Cirurgia of Campinas, State of São Paulo, a case in which he used the Jacobaeus method of cauterizing pleural adhesions as auxiliary to artificial pneumothorax in pulmonary tuberculosis. The results of collapse therapy depend largely on the presence or absence of pleural adhesions. Gravesen was able to observe, over periods varying from three to thirteen years after the operation was performed, a large number of patients in whom artificial pneumothorax had been used as treatment of pulmonary tuberculosis. Gravesen observed that complete pneumothorax in the absence of pleural adhesions gave recovery in 77 per cent of the cases. This proportion diminished to 33 per cent in cases of complete pneumothorax in which there were circumscribed adhesions, and to 11 per cent in cases of incomplete pneumothorax performed in patients with broad pleural adhesions. In the Jacobaeus


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