P.131 Acute subdural hematoma in obstetric patients following epidural anesthesia
Bibliographic record
Abstract
Background: Post-dural puncture headache is a known complication of neuraxial anesthesia and acute subdural hematoma has been associated with unintentional dural puncture. Notably, a significant number of unintentional dural punctures remain unidentified. We present two contrasting cases of subdural hematoma (SDH) following labour epidural anesthesia with no sign of dural puncture at time of anesthesia. Patient 1 presented with headache post-partum day (PPD) six, SDH was identified PPD23, and blood-patch treatment performed PPD35. Patient 2 presented with headache immediately, had SDH identified PPD3, and placement of blood-patch PPD4. Methods: The cases are presented and the literature was reviewed for prior cases. Results: Patient 1 developed significant bilateral SDH with severe headache and right abducens palsy. Headache resolved post blood patch however surgical evacuation was required and the abducens palsy persisted. Patient 2 experienced resolution of symptoms two days post blood patch, the small unilateral SDH was managed conservatively, and had no neurological deficits. Conclusions: Headache is common in the postpartum period. The majority are primary etiology and benign. SDH is a rare but serious complication of neuraxial anesthesia, and the consequences may be devastating. Rapid identification and early treatment are essential to avoid severe neurological sequelae.
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 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 | 0.003 |
| Science and technology studies | 0.003 | 0.002 |
| Scholarly communication | 0.000 | 0.001 |
| Open science | 0.002 | 0.000 |
| Research integrity | 0.000 | 0.002 |
| 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".