Day Surgery Craniotomy for Unruptured Cerebral Aneurysms
Bibliographic record
Abstract
BACKGROUND: Ambulatory day surgery is an evolving specialty in line with demands of modern medicine, health care services, and economics, but its role in neurovascular surgery remains controversial. The purpose of this study was to describe our experience of patients undergoing elective clipping of intact cerebral aneurysms as day surgery. METHODS: This retrospective and prospective observational study was carried out as a cohort review of patients who underwent outpatient clipping of an intact intracranial aneurysm at the Toronto Western Hospital, University Health Network, between May 2009 and November 2012. Patients were categorized as success (discharged on the same day) or failure (requiring unplanned postoperative hospital admission) of day surgery. Data included the preoperative assessment of the patient, anesthetic management, postoperative care, and the incidence of perioperative complications. Outcomes were duration of hospital stay, and any problems preventing same-day discharge. RESULTS: During the study period 25 patients aged 54±9 years underwent outpatient aneurysm repair. Seventeen patients (68%) successfully completed day surgery, and 8 patients (32%) were admitted to the hospital after surgery due to perioperative complications. Duration of hospital stay in the failure group ranged from 2 to 18 days. CONCLUSIONS: Our data demonstrates that surgical clipping of unruptured cerebral aneurysms may be performed in an outpatient setting. Careful selection of day surgery candidates and postoperative assessment for complications is needed. Further research is needed to identify potential risk factors and to target patient subgroups for successful ambulatory surgery.
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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 | 0.001 | 0.001 |
| 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 | 0.000 |
| 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".