Evolution of Corneal Transplantation in the Province of Quebec From 2000 to 2011
Why this work is in the frame
A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.
Bibliographic record
Abstract
PURPOSE: The goal of this study was to determine the changes in surgical techniques and leading indications for corneal transplantations performed in the last decade. The impact of administrative changes of corneal banking in Quebec was also evaluated. METHODS: The records of all corneal transplantations performed between January 2000 and December 2011 in the territory subserved by the Quebec Eye Bank and Héma-Québec (Quebec, Canada) were retrospectively reviewed. RESULTS: A total of 3459 corneal transplantations were performed between 2000 and 2011. The rate of corneal transplantation more than doubled from 234 grafts per year in 2000 to 592 grafts per year in 2011. Imported tissue represented 40% of grafted corneas. Increases in tissue importation were seen in 2003 and 2009 to address local tissue shortage and peaks in wait time. The average wait time decreased from 434 ± 456 days (2000-2008) to 418 ± 551 days (2009-2011) (P = 0.01). The leading surgical indications were Fuchs endothelial corneal dystrophy (27%), pseudophakic corneal edema (26%), keratoconus (13%), and viral keratitis (8%). Regrafts represented 25% of procedures. Descemet stripping automated endothelial keratoplasty became the preferred technique for endothelial diseases, surpassing penetrating keratoplasty in 2011. CONCLUSIONS: The surgical indications and techniques used for corneal transplantation in Quebec reflected those of the literature. However, long wait times and corneal tissue shortages mandated significant changes in the organization of the Quebec Eye Bank. Partnering with a larger agency responsible for tissue and blood donation coordination (Héma-Québec) had a positive impact on yearly transplantation rates and wait times.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
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 | 0.000 | 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) | 0.000 | 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 it