Notching in the Umbilical Artery Doppler Waveform in the Absence of Cord and Placental Structural Abnormalities: A Case of Massive Fetomaternal Hemorrhage
Bibliographic record
Abstract
Massive fetomaternal hemorrhage can cause severe anemia and fetal death. Early diagnosis and blood transfusion can prevent life-threatening events. We describe a case of massive fetomaternal hemorrhage in a previously well primigravida who visited our hospital with a chief complaint of decreased fetal movements and presented with a sinusoidal fetal heart rate pattern in the cardiotocographic tracings. The umbilical artery Doppler waveform showed notching, and the peak systolic velocity of the fetal middle cerebral artery (MCA) was normal. Emergency cesarean section was performed; however, the neonate died despite providing life-support. Thus, we recommend consideration of impending fetal death in patients with non-reassuring fetal heart rate and notching in the umbilical artery Doppler waveform even in the absence of increased peak systolic velocity of the fetal MCA. J Clin Gynecol Obstet. 2016;5(1):50-52 doi: http://dx.doi.org/10.14740/jcgo386w
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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 | 0.003 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| 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".