Is It Time to Abandon Buttonhole Cannulation of Arteriovenous Fistulas?
Bibliographic record
Abstract
Successful dialysis with an arteriovenous fistula (AVF) requires repeated cannulation with 2 large-bore needles at least thrice weekly to deliver blood flow sufficiently high to ensure an adequate dialysis dose. Due to variations in vascular anatomy, cannulation of an AVF can be more challenging than that of an arteriovenous graft (AVG), resulting in more frequent complications of cannulation.1,2 Mis-cannulation is particularly common with new AVFs using the conventional rope ladder technique. A prospective study of 120 hemodialysis Dutch patients with an AVF observed that 51% had a mis-cannulation episode in one of the first 3 dialysis sessions using the AVF, and 91% had at least 1 mis-cannulation during follow-up.
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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 | 0.008 | 0.049 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.002 | 0.003 |
| Scholarly communication | 0.005 | 0.009 |
| Open science | 0.002 | 0.001 |
| Research integrity | 0.008 | 0.008 |
| Insufficient payload (model declined to judge) | 0.011 | 0.006 |
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".