Sudden Onset Hemiplegia and Neglect: A Case Report of Type A Aortic Dissection Presenting as a Code Stroke
Bibliographic record
Abstract
Stanford type A acute aortic dissection with ischemic stroke is a rare yet highly morbid presentation of sudden onset neurological symptoms. We present a case of a 57-year-old African American male brought to the emergency department with a witnessed syncopal episode, abdominal pain, right sided gaze preference, and left side weakness. Upon initiation of the hospital’s “Code Stroke” response protocol, a computed tomography angiogram of the neck incidentally identified Stanford type A aortic dissection with extension into and occlusion of the brachiocephalic artery, occlusion of the right common carotid artery and right internal carotid artery, and dissection flap propagation into the origin of the left common carotid artery. Postoperative magnetic resonance imaging of the brain and the entire spine demonstrated multifocal cerebral infarcts, as well as T10 - L1 spinal infarct. Despite provision of multidisciplinary intensive care unit level of care, the patient failed to demonstrate clinically significant neurological recovery and was transitioned to comfort care after 3 weeks of hospitalization. This case highlights the importance of considering acute aortic dissection as a potential etiology of acute ischemic stroke through the use of computed tomography angiography, as this diagnosis carries profoundly different implications for the consideration of thrombolytic agents and other emergent treatment modalities. J Neurol Res. 2020;10(6):248-252 doi: https://doi.org/10.14740/jnr638
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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 | 0.000 | 0.002 |
| Meta-epidemiology (narrow) | 0.002 | 0.001 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.003 | 0.002 |
| Science and technology studies | 0.003 | 0.002 |
| Scholarly communication | 0.002 | 0.002 |
| Open science | 0.001 | 0.002 |
| Research integrity | 0.003 | 0.002 |
| Insufficient payload (model declined to judge) | 0.002 | 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".