391. PREHABILITATION DURING NACT IN ESOPHAGEAL CANCER CARE—A FEASIBILITY STUDY
Bibliographic record
Abstract
Abstract Background Esophageal cancer bears a high disease burden with elevated morbidity and mortality. Treatment of esophageal adenocarcinoma (EAC) includes Neoadjuvant Chemotherapy (NACT) followed by surgical resection and subsequent adjuvant chemotherapy (ACT). This treatment triad effectively weakens already ill patients. Prehabilitation, a preoperative intervention designed to optimize patients through exercise, nutrition, and psychology, is understudied in this malignancy. Given limited prehabilitation resources at many hospitals, efficacy of home-based programs vs traditional supervised programs was investigated. Methods Patients diagnosed with EAC underwent a multimodal prehabilitation intervention and were blindly randomized to either supervised exercise or home-based exercise. The study was considered feasible if patients complied to 70% of the program. Compliance was measured by number of completed exercise sessions and adherence to nutritional advice and supplementation. Safety was measured by occurrence of adverse events. Cardiorespiratory fitness was measured by cardiopulmonary exercise testing (CPET). Functional capacity was measured by 6-minute walking test (6MWT), Sit-to-Stand and Hand Grip Strength. Quality of Life was measured by ESAS and FACT-E. All patients underwent assessment at baseline, preoperatively and 8 weeks postoperatively. Results 44 patients were enrolled, supervised (n = 23) and home-based (n = 21). Average age was 64, BMI 27.9 kg/m2 and 68% underwent an Ivor Lewis esophagectomy. There were no significant differences between groups at baseline. Overall adherence to the program by the supervised group was 72% and 77% by the home-based group. Exercise allocation was not linked to adherence (p = 0.45). There were 2 non-serious adverse events recorded during this trial: one bout of syncope and one of light headedness during exercise. There is a relative maintenance or even improvement of cardiorespiratory fitness, functional capacity and QoL during NACT throughout the preoperative period. Conclusion Prehabilitation is an effective and safe intervention in esophageal cancer patients undergoing NACT. Home-based programs seem to provide similar benefits to supervised programs. This allows for wider implementation of prehabilitation in hospitals which do not have dedicated outpatient clinics for this purpose. Buffering functional decline during treatment is a triumph in a population that usually suffers. However, larger trials investigating prehab’s effect on post operative complications and QoL are needed.
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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 | 0.004 | 0.003 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.001 | 0.001 |
| Scholarly communication | 0.000 | 0.001 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.004 | 0.001 |
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".