[A study of neurological complications after coronary artery bypass grafting].
Bibliographic record
Abstract
OBJECTIVE: To prospectively investigate the neurological complications (NC) after off-pump coronary artery bypass grafting (OPCABG), including the kinds of NC and their mobility, risk factors, prevention and treatment. METHODS: A total of 55 consecutive patients with undergoing OPCABG were evaluated from March to June 2006 at the Department of Cardiosurgery in Beijing Anzhen Hospital. Risk factors of NC were collected before operation. Nervous system physical examination, the NIH Stroke Scale (NIHSS) score evaluation, cognitive tests, imaging examination (MRI, MRA and f-MRI), anxious and depression scale were performed before and after OPCABG. NC and their kinds were identified after surgery. According to the presence or absence of NC after the operation, the patients were divided into two groups, and univariate analysis was used between the two groups. P < 0.05 was considered of statistically significant difference. RESULTS: (1) 2 cases of ischemic stroke developed after surgery (2/55), but there no case of mortality. The risk factors were not statistically different between the two groups (P > 0.05); (2) For all the patients, cognitive evaluation was normal and unchanged before and after surgery (P > 0.05), including Mini-Mental State Examination (MMSE), Clinical dementia rating (CDR) and Global Deterioration Scale (GDS); (3) Except the 2 cases of stroke, the others were normal and had no change on MRI, MRA, and f-MRI (P > 0.05) before and after surgery; (4) 7 patients with slight anxiety and one with slight depression before operation recovered completely after surgery without treatment. Both the Self-rating Anxiety Scale (SAS) and Self-rating Depression Scale (SDS) were normal and unchanged before and after surgery (P > 0.05). CONCLUSIONS: 2 cases of ischemic stroke were found among 55 patients undergoing OPCABG (2/55) and there was no mortality. There was no obvious change of cognitive function, imaging finding, anxiety and depression before and after the operation (P > 0.05). OPCABG is relatively safe for nervous system, but more exploratory work and clinical data are needed.
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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 | 0.001 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.001 | 0.000 |
| Insufficient payload (model declined to judge) | 0.001 | 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 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".