Prophylactic pectoralis major muscle flap in prevention of pharyngocutaneous fistula in total laryngectomy after radiotherapy
Bibliographic record
Abstract
BACKGROUND: The purpose of this study was to assess the utility of the pectoralis major muscle flap (PMMF) in the prevention of pharyngocutaneous fistula for total laryngectomy after radiotherapy (RT) METHODS: We conducted a retrospective review of 166 patients who underwent a total laryngectomy after RT between 1998 and 2012 at the CHU de Québec. RESULTS: One hundred fifteen patients underwent a total laryngectomy with primary pharyngeal closure alone and 51 patients received an onlay PMMF. The incidence of pharyngocutaneous fistula in the PMMF group was 14% compared to 36% when only primary closure was done (p = .004). However, the PMMF did not influence the treatment needed for the healing of this complication (p = 1.00). The development of pharyngocutaneous fistula increased the length of stay from 19 to 50 days (p < .0001) and delayed the initiation of oral diet from 15 to 25 days (p = .03). CONCLUSION: Nonirradiated tissue coverage should be routine in total laryngectomy after RT. PMMF is a good adjunct to prevent pharyngocutaneous fistula.
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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 | 0.000 |
| 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) | 0.001 | 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".