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: BackgroundThe purpose of this study was to analyze the role of interventional ultrasound in the treatment of nonvascular complications in liver transplant recipients.: MethodsBetween August 1996 and May 2003, we performed 426 OLTs in 394 patients, 287 men (73%) and 107 women (27%), mean age of 50 ± 9.5 years (range 17 to 68.2). A total of 2556 diagnostic ultrasound examinations were performed, resulting in a mean of 5.9 per patient (range 2 to 21). The interventional maneuvers included: echo-guided biopsies; drainage of abdominal or thoracic effusions; drainage of abdominal, intrahepatic, or splenic collections; positioning of biliary drains; and use of the “rendezvous” technique.: ResultsSix hundred seventy-seven echo-guided interventional maneuvers were performed in 394 OTL patients, comprising 417 (61.6%) biopsies and 260 (38.4%) therapeutic maneuvers. Eighty-one ascite drains were positioned (31.1%); in 73 cases, pleural effusions were drained (28.1%). Sixty-seven abdominal or intrahepatic collections were drained (25.8%), of which 36 (53.7%) were due to bilomas or biliary peritonitis, 15 (22.4%) hematomas, 4 (5.9%) hepatic abscesses, 11 (16.4%) infected abdominal collections, and 1 (1.5%) splenic abscess. Thirty-nine cases (15%) of biliary drainage were performed. In 33 cases (7.9%), the parenchymal biopsies were not diagnostic because of an inadequate specimen. The treatment success rate was 96.1%. No complications related to the therapeutic maneuvers were recorded, but there were 5 biopsy-related complications (1.2%).: ConclusionsEcho-guided interventional maneuvers are safe, produce a high success rate, and represent an important option in the management of OLT patients. [Copyright &y& Elsevier]