RT Journal Article T1 Utility of Transient Elastography for the Screening of Liver Disease in Patients with Alpha1-Antitrypsin Deficiency A1 Pons, Mònica A1 Núñez, Alexa A1 Esquinas, Cristina A1 Torres Durán, María A1 Rodríguez Hermosa, Juan Luis A1 Calle Rubio, Myrian A1 Tubio Pérez, Ramón A1 Belmonte, Irene A1 Rodríguez Frías, Francisco A1 Rodríguez, Esther A1 Genescà, Joan A1 Miravitlles, Marc A1 Barrecheguren, Miriam AB Screening of liver disease in alpha-1 antitrypsin deficiency (AATD) is usually carried out with liver enzymes, with low sensitivity. We conducted a multicenter cross-sectional study aiming to describe the utility of transient elastography for the identification of liver disease in patients with AATD. A total of 148 AATD patients were included. Among these, 54.7% were Pi*ZZ and 45.3% were heterozygous for the Z allele. Between 4.9% and 16.5% of patients had abnormal liver enzymes, without differences among genotypes. Liver stiffness measurement (LSM) was significantly higher in Pi*ZZ individuals than in heterozygous Z (5.6 vs. 4.6 kPa; p = 0.001). In total, in 8 (5%) individuals LSM was >7.5 kPa, considered significant liver fibrosis, and ≥10 kPa in 3 (1.9%) all being Pi*ZZ. Elevated liver enzymes were more frequently observed in patients with LSM > 7.5 kPa, but in 5 out of 8 of these patients all liver enzymes were within normal range. In patients with AATD, the presence of abnormal liver enzymes is frequent; however, most of these patients do not present significant liver fibrosis. Transient elastography can help to identify patients with liver fibrosis even with normal liver enzymes and should be performed in all Z-allele carriers to screen for liver disease. PB MPDI SN 2077-0383 YR 2021 FD 2021-04-16 LK https://hdl.handle.net/20.500.14352/6965 UL https://hdl.handle.net/20.500.14352/6965 LA eng NO Pons M, Núñez A, Esquinas C, Torres-Durán M, Rodríguez-Hermosa J, Calle M, et al. Utility of Transient Elastography for the Screening of Liver Disease in Patients with Alpha1-Antitrypsin Deficiency. JCM 2021;10:1724. https://doi.org/10.3390/jcm10081724. NO Grifols DS Docta Complutense RD 23 abr 2025