{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,25]],"date-time":"2026-07-25T22:29:23Z","timestamp":1785018563954,"version":"3.55.0"},"reference-count":19,"publisher":"SAGE Publications","issue":"9","license":[{"start":{"date-parts":[[2021,9,1]],"date-time":"2021-09-01T00:00:00Z","timestamp":1630454400000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["Journal of Endourology"],"published-print":{"date-parts":[[2021,9]]},"abstract":"<jats:sec>\n                    <jats:title>Objective:<\/jats:title>\n                    <jats:p>The aim of the study is to propose a visual classification for encrusted stents (ESs) to help choose the appropriate endourologic treatment.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Materials and Methods:<\/jats:title>\n                    <jats:p>A multicenter, retrospective, and descriptive study was performed. A total of 140 patients with encrusted Double-J stents were enrolled from 5 different institutions. The novel visual grading for ureteral encrusted stent (V-GUES) classification system ranges from A to D, increasing with severity of encrustation.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results:<\/jats:title>\n                    <jats:p>\n                      ESs could be removed with a single intervention in 112 patients (86.8%). Type A and B ESs could be removed in all patients (100% success). Type D stents had minor retrieval and stone-free rates (\n                      <jats:italic toggle=\"yes\">p<\/jats:italic>\n                      \u2009=\u20090.006 and\n                      <jats:italic toggle=\"yes\">p<\/jats:italic>\n                      \u2009&lt;\u20090.0001, respectively). Flexible ureteroscopy had a low success rate (77.7%) for type C stents (odds ratio [OR]: 0.21). Combined access had a 100% success rate for retrieval of type C ESs and a 92.9% success rate for type D ESs (OR: 9.18). Type D stents were associated with patients requiring more than one session to retrieve the stent (OR: 0.11) and stones (OR: 0.21).\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions:<\/jats:title>\n                    <jats:p>The V-GUES system is associated with treatment success rates of ES retrieval and stone-free status. It is also associated with the complication rate and the number of sessions needed for patients to be stent and stone free. The V-GUES classification could help counsel patients about the best treatment options and their outcomes. Further prospective studies will be needed to provide external validation.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1089\/end.2020.1225","type":"journal-article","created":{"date-parts":[[2021,3,18]],"date-time":"2021-03-18T02:36:52Z","timestamp":1616035012000},"page":"1314-1319","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":23,"title":["A Novel Visual Grading for Ureteral Encrusted Stent Classification to Help Decide the Endourologic Treatment"],"prefix":"10.1177","volume":"35","author":[{"given":"Braulio Omar","family":"Manzo","sequence":"first","affiliation":[{"name":"Hospital Regional de Alta Especialidad del Baj\u00edo, Endourology Department, Le\u00f3n, Gto, M\u00e9xico."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Pompeyo","family":"Alarcon","sequence":"additional","affiliation":[{"name":"Hospital Regional de Alta Especialidad del Baj\u00edo, Endourology Department, Le\u00f3n, Gto, M\u00e9xico."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Edgard","family":"Lozada","sequence":"additional","affiliation":[{"name":"Hospital Regional de Alta Especialidad del Baj\u00edo, Clinical Investigation Department, Le\u00f3n, Gto, M\u00e9xico."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jorge","family":"Ojeda","sequence":"additional","affiliation":[{"name":"Hospital Regional de Alta Especialidad del la Pen\u00ednsula de Yucat\u00e1n, M\u00e9rida, Yucat\u00e1n, M\u00e9xico."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Christian","family":"Morales","sequence":"additional","affiliation":[{"name":"Univesidad de los Andes, Hospital Parroquial de San Bernardo, Urology Department, Santiago de Chile, Chile."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2370-548X","authenticated-orcid":false,"given":"Mehmet Ilker","family":"G\u00f6kce","sequence":"additional","affiliation":[{"name":"Department of Urology, Ankara University School of Medicine, Ankara, Turkey."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5315-0710","authenticated-orcid":false,"given":"Ben H.","family":"Chew","sequence":"additional","affiliation":[{"name":"Department of Urologic Sciences, University of British Columbia, Vancouver, Canada."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2510-6093","authenticated-orcid":false,"given":"Fabio","family":"Sepulveda","sequence":"additional","affiliation":[{"name":"Disciplina de Urologia, Universidade Estadual do Sudoeste da Bahia (UESB), Vit\u00f3ria da Conquista, Brazil."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Edson","family":"Flores","sequence":"additional","affiliation":[{"name":"Hospital Regional de Alta Especialidad del Baj\u00edo, Endourology Department, Le\u00f3n, Gto, M\u00e9xico."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ignacio","family":"Morales","sequence":"additional","affiliation":[{"name":"Univesidad de los Andes, Hospital Parroquial de San Bernardo, Urology Department, Santiago de Chile, Chile."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"\u00c7a\u011fr\u0131","family":"Akp\u0131nar","sequence":"additional","affiliation":[{"name":"Department of Urology, Ankara University School of Medicine, Ankara, Turkey."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Esteban","family":"Emiliani","sequence":"additional","affiliation":[{"name":"Fundaci\u00f3 Puigvert, Universidad Aut\u00f3noma de Barcelona, Barcelona 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