Punción del acceso vascular mediante catéter-fístula: efecto sobre el dolor del paciente y la adecuación de hemodiálisis
Bibliographic record
Abstract
Introduction: The use of new needle designs for VA puncture may improve the quality of life of patients (pts) and the parameters of HD efficacy. Objectives:To evaluate whether there are differences in the intensity of the pain perceived by the pts and HD adequacy (Kt Index) after brachial arteriovenous fistula (AVF) puncture through catheter-fistula (CF) or standard needling (SN). Patients and methods: We performed a prospective, controlled, nonrandomized study during 2 months (24 HD sessions) to compare needling by CF (cases) versus SN (controls) in prevalent HD pts dialyzed by brachial AVF. The same patient was the case and the control when the CF (12 sessions) and the conventional 15G needle (12 sessions) were used, respectively. The CF is a biocompatible puncture cannula composed by an internal metal needle intended to AVF puncture and an external fluroplastic catheter (15G) that remains inside the arterialized vein. The pain related either with needling or with needle withdrawal was quantified using a validated visual analogue scale (VAS) and the ShortForm McGill Pain Questionnaire (SF-MPQ). Results: We analyzed 14 prevalent HD pts (mean age 68.4 +/- 10.43 years; 71% male; 28.6 % diabetic nephropathy; mean time on HD 36.57 +/- 18.28 months) dialyzed by brachiocephalic (50%), brachiobasilic (21%) or brachioperforating (29%) fistula. During both needling and needle withdrawal, the VAS was significant lower for CF (2.07 +/- 0.73 and 0,76 +/- 0,39) compared to SN (2.88 +/- 0.99 and 1.85 +/- 0.95) (for both comparisons, p < 0,001).
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.004 | 0.001 |
| Meta-epidemiology (narrow) | 0.001 | 0.001 |
| Meta-epidemiology (broad) | 0.002 | 0.002 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.002 | 0.001 |
| Scholarly communication | 0.000 | 0.001 |
| Open science | 0.002 | 0.001 |
| Research integrity | 0.002 | 0.003 |
| Insufficient payload (model declined to judge) | 0.001 | 0.003 |
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; both teacher heads agree on what is shown here.
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".