[Pre-operative irradiation in the treatment of cancers of thoracic esophagus].

The authors analyse an homogeneous series (2 operators) of 650 patients operated on for thoracic oesophageal carcinoma, of which 185 were submitted to pre-operative irradiation with cobalt. Irradiation led to a definite increase in the resectability rate 74 p. 100 as against 62 p. 100. There was an increase in the mid-term survival rate, especially an increase of 5 p. 100 at 2 years, 8 p. 100 at 3 years, 6 p. 100 at 4 years; The 5 survival rate was little modified. It was 12 p. 100 for 290 cases, resection alone, and 15 p. 100 for 137 resections after irradiation.