Role of Vascular Ultrasound in Monitoring Arteriovenous Fistula Changes in Patients on Maintenance Hemodialysis with Buttonhole Cannulation: Two Case Reports
Why this work is in the frame
A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.
Bibliographic record
Abstract
Abstract Buttonhole (BH) cannulation with a blunt needle offers the patient an alternative to the dreaded sharp needle stick. We used ultrasound imaging to track the morphological changes in the arteriovenous fistula (AVF) caused by the BH cannulation in two patients. During the initial stage of the BH cannulation, a protrusion (intimal hyperplasia) was observed in the vessel at the punctured area. With continued BH cannulation, the protrusion vanished naturally. The more parallel the needle puncture angle was to the vessel, the less it caused vessel dilatation; the antegrade puncture might have less vessel dilatation than the retrograde puncture. Ultrasound-based visualization of these dynamic changes facilitates the refinement of the BH cannulation. The ultrasonic tracking of the AVF morphological changes caused by the BH needling merits further investigation and clinical implementation.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
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 | 0.002 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.001 | 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 | 0.001 |
| Insufficient payload (model declined to judge) | 0.000 | 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 it