RT Journal Article T1 LipoDDx: a mobile application for identification of rare lipodystrophy syndromes A1 Rodríguez Carnero, María Gemma A1 Cantón, Ana A1 Santamaría-Nieto, Alicia A1 Díaz-Ortega, Carmen A1 Martínez-Rey, Carmen A1 Antela, Antonio A1 Muy-Pérez, Andrés E. A1 Sánchez Iglesias, Sofía A1 Araujo-Vilar, David A1 Fernández Pombo, Antía A1 Martínez Olmos, Miguel Ángel A1 Villar Taibo, Rocío A1 Hermida Ameijeiras, Álvaro A1 Losada, Elena A1 González Méndez, Blanca K1 Lipodystrophy syndromes K1 Algorithm K1 Diagnosis K1 LipoDDx K1 Adipose tissue K1 Mobile application K1 Rare diseases AB Background: Lipodystrophy syndromes are a group of disorders characterized by a loss of adipose tissue once other situations of nutritional deprivation or exacerbated catabolism have been ruled out. With the exception of the HIV-associated lipodystrophy, they have a very low prevalence, which together with their large phenotypic heterogeneity makes their identification difficult, even for endocrinologists and pediatricians. This leads to significant delays in diagnosis or even to misdiagnosis. Our group has developed an algorithm that identifies the more than 40 rare lipodystrophy subtypes described to date. This algorithm has been implemented in a free mobile application, LipoDDx®. Our aim was to establish the effectiveness of LipoDDx®. Forty clinical records of patients with a diagnosis of certainty of most lipodystrophy subtypes were analyzed, including subjects without lipodystrophy. The medical records, blinded for diagnosis, were evaluated by 13 physicians, 1 biochemist and 1 dentist. Each evaluator first gave his/her results based on his/her own criteria. Then, a second diagnosis was given using LipoDDx®. The results were analysed based on a score table according to the complexity of each case and the prevalence of the disease. Results: LipoDDx® provides a user-friendly environment, based on usually dichotomous questions or choice of clinical signs from drop-down menus. The final result provided by this app for a particular case can be a low/high probability of suffering a particular lipodystrophy subtype. Without using LipoDDx® the success rate was 17 ± 20%, while with LipoDDx® the success rate was 79 ± 20% (p < 0.01). PB BMC YR 2020 FD 2020 LK http://hdl.handle.net/10347/32082 UL http://hdl.handle.net/10347/32082 LA eng NO Araújo-Vilar, D., Fernández-Pombo, A., Rodríguez-Carnero, G. et al. LipoDDx: a mobile application for identification of rare lipodystrophy syndromes. Orphanet J Rare Dis 15, 81 (2020). https://doi.org/10.1186/s13023-020-01364-1 NO Project financed with an intramural grant from the Xunta de Galicia, ED341b 2017/19. S.S-I was awarded a Research Fellowship, granted by the Asociación Española de Familiares y Afectados de Lipodistrofias (AELIP). DS Minerva RD 28 abr 2026