The Analgesic Effect of Transversalis Fascia Plane Block After Caesarean Section Under Spinal Anaesthesia With Intrathecal Morphine: A Randomized Controlled Trial
Bibliographic record
Abstract
(Anaesthesia. 2024;79(1):63–70. doi: 10.1111/anae.16173) The necessary use of anesthesia during a cesarean delivery (CD) carries side effects including nausea, sedation, itchiness, and respiratory depression. An intrathecal administration of morphine before the CD can be paired with an ultrasound-guided interfacial truncal plane block to hypothetically reduce the risk of symptoms, especially postoperative pain. During the use of a transversalis fascia block, the T12 and L1 spinal nerves are anesthetized. Researchers within this study specifically sought to understand the reducing effects on opioid dose when injections of either bupivacaine 0.25% or saline 0.9% were given in the transversalis fascia plane during the postoperative period after a CD where morphine was administered intrathecally. Inclusion characteristics for the study were as follows: singleton pregnancy, a woman aged 18 to 45 years, body mass index <40, with a CD using spinal anesthesia scheduled; exclusion characteristics included: history of substance abuse or opioid use, chronic pain, body mass index over 40, a known allergy to a drug in the designed trial, those undergoing CD without spinal anesthesia, as well as non-native English speakers.
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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 | 0.002 | 0.003 |
| Meta-epidemiology (narrow) | 0.001 | 0.001 |
| Meta-epidemiology (broad) | 0.004 | 0.003 |
| Bibliometrics | 0.000 | 0.001 |
| Science and technology studies | 0.001 | 0.001 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.002 | 0.003 |
| Insufficient payload (model declined to judge) | 0.007 | 0.001 |
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".