Arch Surg. 1927;14(1):345-361. doi:10.1001/archsurg.1927.01130130349021.
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The use of phrenic neurectomy in the surgical treatment of pulmonary tuberculosis has enjoyed increasing popularity within the last two years. It is not especially a new operation, nor is it one that is usually adopted alone, but rather in association with other surgical procedures. All work of this type is designed to give the lung its maximal amount of rest. Similar, although less, work has been done in nontuberculous cases.

In a general way improvement has been reported, but the presence of lesions within the lung has made it almost impossible to know whether or not the operation in itself will produce an appreciable alteration of the physiology of respiration.

It seemed necessary to determine experimentally the exact effect of the operation on the well-being of the patient in general as well as on his respiration. Accordingly, the normal functions of healthy animals (dogs) were observed. This included careful


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