Patient-controlled subcutaneous analgesia with hydromorphone in cancer pain management
Bibliographic record
Abstract
Background Cancer pain is a significant public health concern worldwide, necessitating effective management strategies. This study aimed to explore the effects of patient-controlled subcutaneous analgesia (PCSA) with hydromorphone hydrochloride injection on refractory cancer pain. Methods We conducted a retrospective observational study involving patients who received PCSA with hydromorphone hydrochloride injection at our hospital from December 2022 to May 2023. All patients in this study were initially hospitalized to undergo dose titration and safety assessment for subcutaneous hydromorphone PCSA, ensuring drug tolerance and stable pump operation. After achieving dose stabilization, most patients continued analgesic therapy at home using the pump, with dynamic monitoring and dose adjustments conducted via telephone follow-ups and outpatient visits. Pain was assessed using the numerical rating scale (NRS), while anxiety and depression were evaluated using the Edmonton Symptom Assessment Scale (ESAS-R) and sleep quality was measured with the Pittsburgh Sleep Quality Index (PSQI). The incidence of adverse drug reactions was also documented. Results The treatment demonstrated significant improvement across all observed parameters. After the continuous subcutaneous injection of hydromorphone hydrochloride infusion for analgesia,the median NRS pain score decreased from 6 to 1 ( p < 0.0001), the mean sleep quality score decreased from 13.85 to 7.488 ( p < 0.0001), the median anxiety state score decreased from 5 to 1 ( p < 0.0001), the median depression score decreased from a baseline of 3 to 0.5 ( p < 0.0001), and the median equivalent oral morphine dose decreased from 140 mg to 52 mg ( p < 0.0001). Conclusions PCSA with hydromorphone hydrochloride injection offers significant therapeutic benefits for refractory cancer pain. It effectively reduces pain intensity, decreases opioid dosage, mitigates certain adverse reactions, and is associated with reduced anxiety and depression as well as improved sleep quality.
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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 | 0.009 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.002 | 0.003 |
| 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 itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, 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".