About a year ago I published an article1 in which was described a method of plugging the cardia to hold bismuth suspensions in the gullet so as to obtain sharp outlines of it in radiographic plates. As experience with the method went along, it was learned that certain unsurmountable difficulties were encountered. These were, the marked degree of distress some persons suffered when the cardia was plugged tightly enough to hold the suspension within the tube, the distress caused in the gullet by forcible peristalsis trying to overcome the plugging below, a dyspnea some experienced when the gullet was distended, regurgitations of bismuth into the mouth, and the fact that quick work was necessary in making the plates or the peristalsis would overcome the plugging beyond the point that traction on the bag seemed safe. It was learned that certain cases of even minor lesions of the gullet had
BASSLER A. A NEW TECHNIC OF ROENTGEN-RAY EXAMINATION FOR EARLY DIAGNOSIS OF CANCER OF THE ESOPHAGUS. JAMA. 1914;LXII(18):1394–1395. doi:10.1001/jama.1914.02560430024011
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