Retrospective Review of Current Nasojejunal Tube Insertion Practice
Bibliographic record
Abstract
Repeated fluoroscopically guided nasojejunal tube (NJT) insertions, particularly in children, can pose health risks through increased radiation exposure. We analyzed frequency of NJT reinsertions and associated radiation exposure through retrospective evaluation of children <18 years at our institution who underwent fluoroscopically guided NJT insertions from 2007 to 2012. Age and weight, reinsertion frequency per patient, radiation dose (dose actual percentage [DAP]), time interval between, and indication for reinsertion were recorded. A total of 252 children (3 days to17 years, 11 months) had 449 NJT insertions. Reinsertions occurred in 105 (41.7%) patients with 14 (5.6%) having ≥5 reinsertions, and 67.6% of reinsertions occurring in patients <1 year. Mean DAP increased with frequency of reinsertion, along with age and weight. Most common indication for reinsertion was a pulled NJT (34.0%). Fluoroscopic NJT reinsertion was most frequent in younger, smaller patients. Self-guided, bedside NJT insertion, and/or earlier instigation of definitive nutritional therapy delivery should be considered.
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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 | 0.001 | 0.005 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.003 | 0.005 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.001 | 0.001 |
| 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".