[MONITORING OF CEREBRAL OXYGENATION AND COGNITIVE FUNCTION IN CAROTID ENDARTERECTOMY: THE ROLE OF TRANSIENT BYPASS OF CAROTID ARTERY].
Bibliographic record
Abstract
UNLABELLED: BACKGROUND AND OBJECTVE: Carotid endarterectomy (CEE) is an effective surgical technique to prevent cerebral ischemia and stroke, but can be associated with intervention-related complications. The surgical shunting of the intervention area may reduce the risk of the intraoperative ipsilateral cerebral ischemia following the carotid artery clamping but is controversial. The goal of this study was to compare the cerebral tissue oxygen saturation (SctO2) and early changes of cognitive functions in CEE in the settings of transient vascular bypass and without this method. METHODS: 45 adult patients were randomized to either the bypass group (the Bypass group, n = 24) or the Controls / No Bypass (the Control group, n = 21). All patients were monitored for invasive arterial pressure, SpO, EtCO,, and cerebral oxygenation (SctO2, Fore-Sight, CASMED, USA) over the contra- and ipsilateral frontal head areas. The cognitive functions were assessed using series of Montreal Cognitive Assessment score (MoCA) before the intervention, and on 6 and 36 hrs after the CEE. RESULTS: We did not find intergroup differences in the surgery duration, degree of stenosis and baseline cognitive function. The values of SctO2 reduced significantly only above contralateral side; these changes were attenuated in the shunt group. There were no intergroup differences in postoperative cognitive function. CONCLUSION: Empiric transient vascular bypass during carotid endarterectomy did not result in significant changes of the ipsilateral cerebral oxygenation, hyperperfusion and cognitive function, but attenuated the decrease of SctO2 over the contralateral hemisphere.
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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 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 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 | 0.000 |
| 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".