Treatment selection and outcomes of locally advanced esophageal cancer in octo- and nonagenarians: Is a curative intent multimodal approach feasible?
Bibliographic record
Abstract
333 Background: Neoadjuvant therapy followed by en bloc surgical resection affords the highest rates of survival from locally advanced esophageal cancer (LAEC) and represents the standard of care. However, patients of advanced age may not be offered this approach due to concerns over toxicity/tolerability. The outcomes of different treatment modalities for patients aged 80 and above with LAEC are not well described. Methods: A retrospective, single center, cohort analysis was performed on a prospectively maintained comprehensive esophageal cancer database. Between 2010-20, all patients ≥80yrs with locally advanced esophageal/GEJ cancer (cT2-4a, Nany, M0) were identified and outcomes stratified according to the following treatment categories: Neoadjuvant chemotherapy (nCT) or chemoradiotherapy (nCRT) followed by surgery; definitive CRT (dCRT); upfront surgery; palliative CT or RT; or best supportive care (BSC). Data presented as median(range). Univariate analysis used for clinicopathological data (*p<0.05). Survival was compared with log rank analysis (Mantel Cox). Results: 79 patients ≥80 yrs with LAEC were identified. Median age was 83yr (80-97) and Charlson comorbidity index=7 (6-10). Most were cT3 (73%), cN- (56%) and adenocarcinoma (62%). Treatment approaches included: neoadjuvant (nCT(n=11)/nCRT(N=5)) + surgery (16/79(20%)); surgery alone (19/79 (24%)); dCRT (12/29(15%)); palliative RT or CT (24 + 3/79(34%)); BSC (5/79(6%)). Neoadjuvant consisted of nCT (FLOT=4; carbo-taxol =4; FOLFOX=2; CP+pembro=1) and nCRT (CROSS=5) and most received the intended full treatment/cycles (10/16:63%). Surgery was performed in 35 (age=82(80-96)), with major complications (grade 3-5) in 13/35 (37%) and 90-day mortality in 3/35(8.5%). Overall Survival for the entire cohort was 58% (1yr) and 19% (3yr), but highest with nCT/nCRT+surgery (94%/46%)*, followed by surgery alone (68%/39%), dCRT (58%/8%), palliative treatment (40%/4%), and BSC (0%/0%). Curative intent treatment (nCT/nCRT/surgery/dCRT) had significantly increased 1 and 3-yr survival compare to palliative treatment (76%/31% vs 34%/3.3%)*. Conclusions: Multimodal standard of care treatment, including surgical resection, of locally advanced esophageal cancer in octo/nonagenarians is feasible and safe in a subset of this high-risk population and associated with improved outcomes compared to other approaches. Age alone should not bias against curative-intent treatment in elderly patients with esophageal cancer.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.002 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".