Girard et al. (A-6) conducted a study to identify prognostic factors of improved survival after resection of isolated pulmonary metastases (PM) from colorectal cancer. Among the data collected were the following regarding number of resected PM, survival, and outcome for 77 patients who underwent a complete resection at the first thoracic operation:

Patient Number of Resected PM Survival

(Months) Status Patient Number of Resected PM Survival

(Months) Status 1 1 24 Alive 8 1 15 Dead 2 1 67 Alive 9 1 10 Dead 3 1 42 Alive 10 1 41 Dead 4 > 1 28 Dead 11 > 1 41 Dead 5 1 37 Dead 12 1 27 Dead 6 1 133 Alive 13 1 93 Alive 7 1 33 Dead 14 > 1 0 Dead 15 1 60 Dead 47 1 54 Dead