Reoperative pulmonary metastasectomy for sarcomatous pediatric histologies.
BACKGROUND
The role for reoperative pulmonary metastasectomy in patients with "pediatric sarcomas" (osteosarcoma, nonrhabdomyosarcoma-soft tissue sarcoma, and Ewing's sarcoma) is undefined.


METHODS
We reviewed our results for patients with these histologic presentations (median age, 17.5 years; range, 6 to 32 years) having two (70), three (27), or four (10) metastasectomies between January 1965 and March 1995 to define postresection survival and potential prognostic factors. Simple wedges (88 thoracotomies, 84%) were performed more frequently than anatomic (17 thoracotomies, 16%) resections.


RESULTS
With a median potential follow-up of 12.7 years, median survival was 2.25, 3.60, and 0.96 years from the second, third, and fourth explorations, respectively. Primary tumor site, sex, histology, age, maximal metastasis size, and systemic chemotherapy did not influence survival. Resectability was the most important prognostic factor (5.6 versus 0.7 years, 5.2 versus 2.5 years, 2.2 versus 0.2 years, resectable versus unresectable, median survival from second, third, and fourth thoracotomy, respectively). Unresectability, disease-free interval less than 6 months between initial (ie, first) pulmonary resection and the second thoracotomy, and two or more preoperative nodules noted on the right were simultaneously negatively associated with survival from the second thoracotomy. Unresectability or finding two or more metastases negatively affected survival from the third thoracotomy.


CONCLUSIONS
These data imply that repeat metastasectomy can salvage a subset of patients with sarcomatous pediatric histologic presentations who retain favorable prognostic determinants.
Thoracic Oncology Section, Pediatric Oncology Branch, and Biostatistics and Data Management Section, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA.
B K
BK
Temeck
L H
LH
Wexler
S M
SM
Steinberg
L L
LL
McClure
M A
MA
Horowitz
H I
HI
Pass
D000293:Adolescent; D000328:Adult; D002648:Child; D005260:Female; D006801:Humans; D008175:Lung Neoplasms / Q000401:mortality / Q000556:secondary* / Q000601:surgery*; D008297:Male; D016016:Proportional Hazards Models; D012086:Reoperation; D012189:Retrospective Studies; D012509:Sarcoma / Q000401:mortality / Q000556:secondary*; D016019:Survival Analysis