RT info:eu-repo/semantics/article T1 Study of the true clinical progression of autosomal dominant alport syndrome in a european population A1 Rosado, Consolación A1 Bueno Martínez, Elena A1 Felipe, Carmen A1 Valverde, Sebastián A1 González Sarmiento, Rogelio K1 Alport syndrome K1 COL4A3 K1 COL4A4 K1 Autosomal dominant inheritance K1 24 Ciencias de la Vida AB Background/Aims:Autosomal dominant Alport syndrome represents 5% of all Alport syndrome cases. This entity presents a different clinical expression from the recessive inheritance pattern and the X chromosome-linked pattern, because it is mild and it shows a late onset, which in many cases even goes unnoticed. Methods:We carried out a descriptive observational and retrospective clinical study on 19 patients from 5 families with a clinical diagnosis of autosomal dominant Alport Syndrome, and we analyzed the expression of the symptoms in the different families, comparing the results with what has been described in the literature. Results:Renal involvement appeared at a young age, with a progression towards end-stage chronic kidney disease at a median age of 31 years (20.5-36.5). Hearing involvement also appeared in early stages, at a median age of 28.5 years (7.5-62.5). Also, we observed ocular lenticonus-like injuries, which until now have only been described in other inheritance patterns. Conclusions:Our results suggest that dominant patterns are accompanied by a severe clinical expression that can be superimposed to the recessive and X chromosome-linked patterns, contrary to what has been classically stated. The high phenotypic variability observed in the families lead to the fact that many cases go unnoticed and the severest cases are erroneously diagnosed as recessive, which means that the real prevalence of dominant forms is probably higher than the current 5%. PB Karger Publishers SN 1420-4096 YR 2015 FD 2015 LK https://uvadoc.uva.es/handle/10324/47502 UL https://uvadoc.uva.es/handle/10324/47502 LA eng NO Kidney and Blood Pressure Research, 2015, vol. 40, n. 4, p. 435-442 NO Producción Científica DS UVaDOC RD 17-jul-2024