EP053 Evaluation of nerve block incidence and utilization in hip fractures: a retrospective analysis
Bibliographic record
Abstract
Please confirm that an ethics committee approval has been applied for or granted: Yes: I’m uploading the Ethics Committee Approval as a PDF file with this abstract submission Background and Aims Hip fractures in the elderly population necessitate effective pain management strategies to improve outcomes. Peripheral nerve blocks are recommended for their potential benefits in pain control and recovery. However, their utilization remains variable. This study aims to evaluate the incidence and determinants of peripheral nerve block use in elderly hip fracture patients, with a focus on timing and patient outcomes. Methods A retrospective analysis of patient charts from University Hospital and Victoria Hospital in London, Ontario, Canada, was conducted. The study included patients aged 65 years and older diagnosed who underwent emergency hip surgery between January 1, 2018, and February 29, 2024. Data on nerve block utilization, patient demographics, cognitive impairment, length of stay, and timing of block administration were collected. Statistical analysis, including chi-square tests, logistic regression, and propensity score matching, was performed to examine the factors influencing nerve block utilization. Results Preliminary findings suggest suboptimal utilization of peripheral nerve blocks in hip fracture surgery patients, with fewer blocks administered during off-hours and weekends compared to standard weekday work hours. Despite an annual increase in block utilization, patients during off-hours were less likely to receive blocks, indicating variation in care. Conclusions This study highlights the need for optimizing the utilization of peripheral nerve blocks in elderly patients undergoing hip fracture surgery. Understanding factors influencing block administration, such as timing, patient characteristics, and cognitive impairment, is crucial for enhancing pain management practices and improving outcomes in this vulnerable population.
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.
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 | 0.001 |
| Bibliometrics | 0.002 | 0.003 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.001 | 0.000 |
| 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".