PA31 Congenital alopecia areata: a systematic review
Notice bibliographique
Résumé
Abstract Alopecia areata (AA) describes nonscarring, generally patchy, hair loss that can affect the entire scalp [alopecia totalis (AT)] and body [alopecia universalis (AU)]. AA is considered to be an acquired autoimmune condition. However, cases of congenital AA (CAA) have been reported. This study aimed to summarize and analyse data from existing CAA reports. No funding was obtained for this research. Following the PRISMA guidelines, PubMed and Web of Science were searched. Records reporting cases of AA present at birth were included. Twelve patients were identified, with a female predominance (n = 7; 58%). Three were premature (25%). Alopecic pattern at birth was AA in eight cases (67%), AT in two (17%) and AU in two (17%). A positive family history of AA was reported in five cases (42%). The AA diagnosis was clinical in eight cases (67%) and biopsy-proven in four (33%). Nine patients received/reported treatment (75%). Of those treated with topical corticosteroid (TCS) alone (n = 3/9; 33%), two demonstrated total regrowth (67%), while one experienced development into AU (33%). Two patients were treated with TCS and a topical vasodilator (TV), minoxidil (22%). One experienced full regrowth, while the other demonstrated partial regrowth, until the TCS was discontinued (i.e. the TV was used alone), and AT resulted. One patient was treated with TCS and oral antihistamine (11%), and one was treated with placebo lotion (11%). Both experienced partial regrowth. Two patients were treated with oral pulse steroid, a topical immunomodulator and TV, but no follow-up was provided (22%). Limitations of this review include small sample sizes and the possibility of missed cases due to a lack of well-established terminology and under-reporting. Additionally, not all cases were biopsy-proven. Biopsy is not necessary for AA diagnosis but is helpful in confirming unique (e.g. congenital) presentations of the condition. Given that AA is typically considered an acquired autoimmune condition, congenital cases call our understanding of AA into question. However, a positive family history in five cases suggests that genetic factors are involved in the development of CAA, as with acquired AA. Additionally, the female predominance of CAA is in keeping with acquired AA. Finally, given that TCSs yielded partial or total hair regrowth in five of six patients who received them (83%), TCSs are a reasonable first-line treatment option for CAA. In conclusion, CAA should be considered as a differential diagnosis of alopecia in the newborn, and increased CAA awareness should result in an increased number of patients receiving proper treatment.
Récupéré en direct depuis OpenAlex et désinversé. Les résumés ne sont pas conservés dans cette base de données : les index inversés représentent 8,6 Go des 9,3 Go de texte de la base, et le serveur dispose de 13 Go libres.
Comment cette classification a été obtenuedéplier
Prédiction machine sur la base complète
Imitation des enseignantsNi prévalence calibrée, ni vérité terrain. Validation humaine à venir. Le volet Gemma est une étiquette directe du modèle pour chaque travail de la base, lue sur la notice réduite au titre. Le volet Codex est un classifieur appris des 10 348 étiquettes directes de Codex et calibré sur les taux pondérés de l'échantillon; les champs sans appui suffisant ne portent aucun appel Codex. Le mode candidate est l'union des deux volets; le consensus est leur intersection. Ces sorties portent le statut machine_predicted_unvalidated et ne sont pas des étiquettes humaines.
Scores du classifieur distillé par catégorie (deux têtes)
| Catégorie | Codex | Gemma |
|---|---|---|
| Métarecherche | 0,002 | 0,012 |
| Méta-épidémiologie (sens strict) | 0,001 | 0,000 |
| Méta-épidémiologie (sens large) | 0,005 | 0,003 |
| Bibliométrie | 0,010 | 0,011 |
| Études des sciences et des technologies | 0,001 | 0,000 |
| Communication savante | 0,002 | 0,002 |
| Science ouverte | 0,001 | 0,001 |
| Intégrité de la recherche | 0,001 | 0,001 |
| Charge utile insuffisante (le modèle a refusé de juger) | 0,010 | 0,001 |
Scores machine (provisoires)
Les deux têtes enseignantes du modèle étudiant, lues sur ce travail. Un score ordonne la base pour la relecture; il n'affirme jamais une catégorie, et le statut de validation accompagne chaque rangée tel quel.
Scores de référence d'un modèle non mature (critères de maturité non atteints, 7 itérations). Un score ordonne; il n'affirme jamais une catégorie.
score_only:v0-immature-baseline · tel quel depuis la passe de notation : score_only signifie que le nombre peut ordonner les travaux, et qu'aucune étiquette de catégorie n'en découleClassification
machine, non validéePrédiction automatique; un appel candidat d’une seule source (Gemma direct ou Codex distillé), pas un consensus.
Le détail, modèle par modèle et score par score, se trouve en fin de page sous « Comment cette classification a été obtenue ».