Introduction: The living donor liver transplantation (LDLT) technique was developed to face the problem of low-rate donation. Living donor selection is crucial to minimize postoperative donor complications and to improve recipient outcomes This study evaluates the reasons for discarding potential donors in our LDLT program. Methods: Retrospective descriptive analysis from all potential donors evaluated in our LDLT program between April 2018 and July 2021. Selection criteria included age 18-60 years old, no significant medical or mental comorbidities, ABO and anatomical suitability. Results: A total of 231 patients were evaluated. Mean age was 37+11 years and male gender in 52%. 101 potential donors (43.7%) did not complete the evaluation because of the availability of a deceased donor (n=26; 11.3%), ABO incompatibility (n=13; 5.6%), progression or death of the recipient (n=14; 6.1%). Of the 130 who completed their radiological evaluation, the main causes of inadequate candidacy were small liver remnant size (SLRS) (n=17/130; 13.1%) and steatosis (n=15/130; 11.5%). Out of the 231 potential donors, 75 were accepted as adequate donors (32.4%) and 32 candidates underwent liver donation (13.8%). Conclusions: 43.7% of the potential donors didn’t complete the evaluation because of progression, death or deceased donor transplantation of the recipient. Steatosis, SRLS and anatomical variation are the main causes for dropout. Only 1/3 of potential donors are suitable for donation and half of them will undergo surgery. It is important to know main exclusion criteria met by potential donors, in order to make a more efficient use of time and financial resources.
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