Nonductal dependent coarctation: a 20-year study of morbidity and mortality comparing early-to-late surgical repair.
Bibliographic record
Abstract
OBJECTIVE: The objective of this study was to evaluate the effect of the timing of surgical repair of nonductal dependent coarctation on the short-term outcome. METHODS: The medical records of 76 patients, diagnosed and treated for a nonductal dependent mild-to-moderate coarctation at a tertiary care institute over a 20-year period, were retrospectively reviewed with the age at repair compared against outcome measures. Multiple logistic regression was performed to assess the timing of repair, the presence of congestive heart failure or associated cardiac defects on the outcome measures. RESULTS: The mean age of surgery for the mild-to-moderate coarctation repair was 3.1 years (range: three days to 12 years). The most common cause for referral to a pediatric cardiologist was the clinical finding of a cardiac murmur. The timing of surgical repair was not found to be a predictor of morbidity or mortality. There was no significant difference in outcome measures defined as residual hypertension, residual coarctation gradient, persistent cardiomegaly, postoperative neurological sequelae, the requirement for a second surgery or the need for balloon dilatation for residual postoperative coarctation and the need for antihypertensive medications within five years postsurgery. CONCLUSION: The timing of surgical repair in the setting of nonductal dependent, mild-to-moderate coarctation of the aorta, does not adversely affect the short term (less than 20 years) outcome in children.
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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 | 0.001 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.001 |
| 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".