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Searches were updated to November 2025. Pooled success, recurrence, and complication rates were estimated for each sclerosant agent, and differences across agents were explored. The risk of bias was assessed using Methodological Index for Non-Randomized Studies, while the certainty of the evidence was assessed using the Grading of Recommendations, Assessment, Development and Evaluation.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>Sixteen studies were included\u2014fifteen retrospective and one prospective\u2014reporting on different sclerosant agents: ethanol, povidone-iodine, OK-432, fibrin glue, polidocanol, and doxycycline. A total of 335 lymphoceles were studied. Ethanol showed the most consistent results, with high clinical success (97.4%, 95% CI 82.6\u201399.7%) and low recurrence rates across the studies (6.7%, 95% CI 3.1\u201314.2%). The other sclerosant agents yielded similar results but with a lower grade of evidence certainty. Minor complication rates were low (12.2%), consisting predominantly of mild and self-limiting adverse events; only two major complications were reported. Limitations were heterogeneity among studies and predominance of retrospective designs.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>Percutaneous sclerotherapy yielded favorable results with all agents; however, ethanol is the best-characterized agent, with consistent outcomes and moderate certainty of evidence. High-quality, prospective research is needed in order to choose the best sclerosant agent and standardize the procedure.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Level of Evidence<\/jats:title>\n                    <jats:p>Level IV, systematic review of retrospective non-comparative studies.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Graphical Abstract<\/jats:title>\n                  <\/jats:sec>","DOI":"10.1007\/s00270-026-04371-0","type":"journal-article","created":{"date-parts":[[2026,2,17]],"date-time":"2026-02-17T20:14:05Z","timestamp":1771359245000},"page":"745-754","update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Percutaneous Sclerotherapy of Postoperative Lymphoceles: A Systematic Review and Meta-analysis of Different Sclerosant Agents"],"prefix":"10.1007","volume":"49","author":[{"ORCID":"https:\/\/orcid.org\/0009-0007-6483-9912","authenticated-orcid":false,"given":"Marcello","family":"Lippi","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Alessandro","family":"Posa","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Gianmarco","family":"Quarta","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Alessandro","family":"Maresca","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Vincenzo","family":"Vingiani","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Pierluigi","family":"Barbieri","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Anna Rita","family":"Scrofani","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Andrea","family":"Contegiacomo","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Alessandro","family":"Cina","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Roberto","family":"Iezzi","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2026,2,17]]},"reference":[{"key":"4371_CR1","doi-asserted-by":"publisher","first-page":"109459","DOI":"10.1016\/j.ejrad.2020.109459","volume":"134","author":"AS Ten Hove","year":"2021","unstructured":"Ten Hove AS, Tjiong MY, Zijlstra IAJ. 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