Catastrophic and Critical Intraoperative Events during Pediatric Craniofacial Surgery
Bibliographic record
Abstract
Pediatric craniofacial surgery performed in tertiary care centers by dedicated teams is associated with high levels of safety and low rates of mortality. However, catastrophic and life-threatening events may occur as a result of surgical management of these complex patients. This study reviewed the incidence and acute outcomes of catastrophic and critical events during craniofacial surgery at a single high-volume center. Methods: The data reviewed included the operative procedures of two senior craniofacial surgeons over an 18-year period at a tertiary care pediatric craniofacial center. Catastrophic or critical intraoperative events were defined as events requiring the activation of an emergency code during surgery. The operative details and acute outcomes were reviewed and analyzed. Results: This study reviewed 7214 procedures performed between January 2002 and January 2019. There were 2072 (29%) cases classified as major craniofacial procedures (transcranial, mixed trans-and-extracranial, or major extracranial facial osteotomies), and code events occurred in 14 cases (0.67%; one in 148 patients): venous air embolism (n = 4), cardiac complications (n = 3), major hemorrhage (n = 3), trigeminocardiac reflex (n = 2), acute intracranial hypertension (n = 1), and acute airway obstruction (n = 1). Two cases (14%) experienced a critical event that was anesthesia-related. Cardiac arrest requiring compressions and/or defibrillation was necessary for eight patients. There were no mortalities. Surgery was curtailed in seven cases and successfully completed in seven patients. Conclusions: Catastrophic life-threatening events during pediatric craniofacial surgery are, fortunately, rare. In our institution, experienced teams in the management of catastrophic and critical intraoperative events during major pediatric craniofacial procedures resulted in no mortalities.
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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 | 0.005 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.002 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.000 | 0.001 |
| 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".