La Rétinopathie du Prématuré en Centrafrique : Résultats de l’Examen du Fond d’Œil chez 88 Nouveau-Nés au Complexe Pédiatrique de Bangui
Bibliographic record
Abstract
Introduction. Les auteurs ont examine les prematures au Complexe Pediatrique de Bangui, dans le but d’evaluer les facteurs de risque de survenue de la retinopathie du premature et les modalites de depistage de cette maladie en Centrafrique. Patients et methodes. Il s’agit d’une etude transversale prospective analytique de Janvier 2012 a Decembre 2014 a la Clinique Pediatrique de Bangui. Tous les prematures nes avant 32 semaines de gestation ou ayant un poids de naissance inferieur a 1500 grammes ont beneficie d’un examen du fond d’œil a 5 semaines de vie. Le materiel utilise etait compose d’un ophtalmoscope binoculaire indirect Neitz, assorti d’une source d’alimentation electrique portative Zeiss/Opton, de deux lentilles d’examen 20 et 28 dioptries, d’un mydriatique (tropicamide®) et d’un anesthesique de contact. Les lesions observees ont ete reparties selon la classification de Calgary. Resultats. 88 prematures dont 39 garcons (44,3%) et 49 filles (55,7%) ont ete etudies. Leur âge gestationnel moyen etait de 29,2 ±2,8 semaines et le poids de naissance moyen de 1205 ± 255 grammes. L’examen a ete satisfaisant dans tous les cas. Le diagnostic de retinopathie a ete pose chez 29 (32,95%) prematures, dont 12 garcons (41,4%) et 17 filles (58,6%), avec une atteinte bilaterale chez tous. 28 enfants sur 31 (90.3%) avaient des lesions minimes ou moderees et toutes ont regresse spontanement sans laisser de sequelle. Dix deces ont ete enregistres durant le suivi. Conclusion. L’ophtalmoscope binoculaire indirect est l’outil de choix pour le depistage de la retinopathie des prematures et le tropicamide peut etre utilise sans effets indesirables pour obtenir une mydriase adequate. Le poids de naissance et l’âge gestationnel sont deux facteurs de risque a considerer. Le risque semble etre le meme que l’enfant soit sous oxygene ou non. ABSTRACT Introduction. To determine the risk factors for the occurrence of retinopathy of prematurity and the modalities of detection of this disease in the Central African Republic. Patients and methods: This was a prospective, cross sectional analytic study from January 2012 to December 2014 at the Bangui Pediatric hospital. Premature babies born before 32 weeks of gestation and those who had a born weight less than 1500 grams had fundus examination performed at 5 weeks of age. The equipment consisted of a Zeitz indirect binocular ophthalmoscope with a Zeiss/Topcon portable power source power, two 20 and 28 diopters examination ocular lenses, a mydriatic eye drop (tropicamide) and topic anesthetic. Retinal lesions were grouped according to the Calgary classification. Results: 88 premature babies, among whom 39 boys (44.3%) and 49 girls (55,7%) were studied with a average gestational age of 29.2 ± 2.8 weeks and an average birth weight of 1205 ± 255 grams. Examination was satisfactory for all babies. The diagnosis of retinopathy of prematurity was made in 29 babies (32.95%) among whom 12 were boys (41.4%) and 17 were girls (58.6%). Retinal lesions were always bilateral. 28 babies over 31 (90.3%) had mild lesions (grade 1 or 2) and all these lesions spontaneously regressed, leaving no sequel. Ten babies died during the follow up period. Conclusion. Indirect binocular ophthalmoscopy is the tool of choice for screening of the retinopathy of prematurity and tropicamide can be used without undesirable side effects to obtain adequate mydriasis. Both birth weight and gestational age are two risk factors to consider. Premature babies with and without oxygen therapy seem to have a similar level.
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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 | 0.006 | 0.005 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.003 | 0.003 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| 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; both teacher heads agree on what is shown here.
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".