Bibliographic record
Abstract
Introduction:The nociception induced during surgical procedures may be related to the development of complications such as chronic pain.The use of regional anesthesia is effective in nociception reduction.The quadratus lumborum block is an adjuvant in perioperative analgesia in cats' ovariectomy.Parasympathetic Tone Activity (PTA) is used in veterinary to quantify the nociception-antinociception and was used to measure relative parasympathetic and sympathetic balance.Objectives: To evaluate the performance of ultrasound-guided quadratus lumborum block in reducing the surgical sympathetic activation in female cats undergoing ovariectomy using a PTA monitor.Methods: A total of 45 female anesthetized cats were enrolled and randomized to receive bilateral ultrasound-guided quadratus lumborum block with bupivacaine 0.25% (QL; n = 29) or control (C; n = 16) studied protocols.During ovariectomy anesthesia, the anesthetic plane, physiological values and nociceptive (PTA) variations were assessed.These parameters were evaluated at four periods, skin incision (t1), at first (t2), and at second ovary removal (t3) and skin closure (t4).The values below a PTAi value of 50 were considered sympathetic activation, possibly due to surgical stimulation. Results:The PTAi value below 50 was observed in 64.1% of stimulation points in the C group and only in 34.5% of the QL group (Fisher test p < 0.001).The QL block reduced the sympathetic stimulation in all points evaluated (Figure 1).Conclusions: The ultrasound-guided QL with bupivacaine reduced the sympathetic activation in cats under ovariectomy.This technique could be used to reduce de nociceptive stimulus in this specie under this surgery.
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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 | 0.002 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.001 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.000 | 0.002 |
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".