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This research was funded by Sociedad Espanola de Endocrinologia y Nutricion (SEEN) https://www.seen.es/portal.

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Adrenal venous sampling in primary aldosteronism: Experience of a Spanish multicentric study (Results from the SPAIN-ALDO Register)

Publicado en:ENDOCRINE. 78 (2): 363-372 - 2022-06-25 78(2), DOI: 10.1007/s12020-022-03122-8

Autores: Araujo-Castro, Marta; Paja Fano, Miguel; Gonzalez Boillos, Marga; Pla Peris, Begona; Pascual-Corrales, Eider; Garcia Cano, Ana Maria; Parra Ramirez, Paola; Rojas-Marcos, Patricia Martin; Ruiz-Sanchez, Jorge Gabriel; Vicente Delgado, Almudena; Gomez Hoyos, Emilia; Ferreira, Rui; Garcia Sanz, Inigo; Recasens Sala, Monica; Barahona San Millan, Rebeca; Picon Cesar, Maria Jose; Diaz Guardiola, Patricia; Garcia Gonzalez, Juan Jesus; Perdomo, Carolina M; Manjon Miguelez, Laura; Garcia Centeno, Rogelio; Percovich, Juan Carlos; Rebollo Roman, Angel; Gracia Gimeno, Paola; Robles Lazaro, Cristina; Morales-Ruiz, Manuel; Hanzu, Felicia A

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Objective The aim of this study was to evaluate the rate of adrenal venous sampling (AVS) performance in patients with primary aldosteronism (PA), the main reasons for its non-performance, and the success and complications rate of this procedure in Spain. Moreover, the concordance between CT/MRI and AVS for PA subtyping was evaluated. Methods A retrospective multicenter study of PA patient follow-up in 20 Spanish tertiary hospitals between 2018-2021 was performed (SPAIN-ALDO Register). Results Of the 440 patients with PA included in the study, 153 underwent AVS (34.8%). The main reasons for not performing AVS were: patient rejection to the procedure, low catheterization rate in the center and unilateral disease based on CT/MRI. The overall success rate was 44.4% (the left adrenal vein was properly canulated in 77.8% and the right adrenal vein in 48.4%). Only 3 patients experienced minor complications. In the 45 patients with unilateral disease according to AVS, CT/MRI indicated bilateral disease or normal adrenal glands in 17. In the 23 patients with bilateral disease, CT/MRI indicated unilateral disease in 14. However, no significant differences were observed in biochemical response (P = 0.051) and hypertension resolution (P = 0.150) between patients who underwent surgery based on CT/MRI results and those who underwent surgery based on AVS results. Conclusion In our setting, AVS is still an underused technique in patients with PA. The low experience and success rate in AVS partially justify these results. More training for providers and patients needs to be done to include appropriate well performed AVS in the diagnosis algorithm of PA.

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