{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,2,21]],"date-time":"2025-02-21T07:50:22Z","timestamp":1740124222226,"version":"3.37.3"},"reference-count":17,"publisher":"Springer Science and Business Media LLC","issue":"3","license":[{"start":{"date-parts":[[2022,1,27]],"date-time":"2022-01-27T00:00:00Z","timestamp":1643241600000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0"},{"start":{"date-parts":[[2022,1,27]],"date-time":"2022-01-27T00:00:00Z","timestamp":1643241600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0"}],"funder":[{"DOI":"10.13039\/501100002352","name":"Ain Shams University","doi-asserted-by":"crossref","id":[{"id":"10.13039\/501100002352","id-type":"DOI","asserted-by":"crossref"}]}],"content-domain":{"domain":["link.springer.com"],"crossmark-restriction":false},"short-container-title":["Int Urol Nephrol"],"published-print":{"date-parts":[[2022,3]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec>\n                <jats:title>Background<\/jats:title>\n                <jats:p>Malignant ureteric obstruction (MUO) due to pelvic malignancies is challenging for endourological management and carries high failure rates for retrograde cystoscopic ureteric stenting.<\/jats:p>\n              <\/jats:sec><jats:sec>\n                <jats:title>Methods<\/jats:title>\n                <jats:p>We adopted Galdakao-modified Valdivia (GMV) position in the management of MUO in an operating room equipped with a C-arm fluoroscopy unit and an ultrasound device. We prospectively studied the added value of this approach in 50 cases who failed retrograde ureteric stenting.<\/jats:p>\n              <\/jats:sec><jats:sec>\n                <jats:title>Results<\/jats:title>\n                <jats:p>Thirty-seven (74%) cases were done under a high level of spinal anesthesia. Mean operative time was 62\u00a0min. Antegrade ureteric stenting succeeded in 45\/50 (90%) patients who failed retrograde ureteric stenting. GMV position facilitated simultaneous retrograde and antegrade management of MUO. Eight patients (16%) underwent auxiliary cystoscopic procedures to reduce the mass over the ureteric orifice (UO) guided by antegrade methylene blue or over a probing antegrade guidewire. Nephrostomy tube was inserted in the same setting in 16\/50 (32%) cases. Antegrade flow of contrast to the bladder (<jats:italic>P<\/jats:italic>\u2009&lt;\u20090.001) and ureteric kinks rather than tight stenosis or infiltration of UO (<jats:italic>P<\/jats:italic>\u2009=\u20090.014) were significantly associated with the success of antegrade ureteric stenting. No major complications were encountered.<\/jats:p>\n              <\/jats:sec><jats:sec>\n                <jats:title>Conclusion<\/jats:title>\n                <jats:p>GMV position is an ideal choice for management of MUO as it allows simultaneous access to the lower and the upper urinary systems to accomplish ureteric stenting either in a retrograde or an antegrade fashion as well as the ability to insert a nephrostomy tube in the same setting, thus shortening the inpatient care and this should be the standard of care in cases with MUO.<\/jats:p>\n              <\/jats:sec>","DOI":"10.1007\/s11255-022-03109-4","type":"journal-article","created":{"date-parts":[[2022,1,27]],"date-time":"2022-01-27T12:03:01Z","timestamp":1643284981000},"page":"463-468","update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Evaluation of Galdakao-modified Valdivia position in endoscopic management of malignant ureteric obstruction"],"prefix":"10.1007","volume":"54","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-7677-0461","authenticated-orcid":false,"given":"Ahmed","family":"Emam","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Mohamed","family":"Elmoazen","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Mohamed","family":"Shabayek","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Amr M.","family":"Zriek","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hany Hamed","family":"Gad","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"297","published-online":{"date-parts":[[2022,1,27]]},"reference":[{"key":"3109_CR1","doi-asserted-by":"publisher","first-page":"2016","DOI":"10.1007\/s00330-005-0136-7","volume":"16","author":"KA Hausegger","year":"2006","unstructured":"Hausegger KA, Portugaller HR (2006) Percutaneous nephrostomy and antegrade ureteral stenting: technique\u2014indications\u2014complications. Eur Radiol 16:2016. https:\/\/doi.org\/10.1007\/s00330-005-0136-7","journal-title":"Eur Radiol"},{"key":"3109_CR2","doi-asserted-by":"publisher","DOI":"10.9754\/journal.wmc.2011.001442","author":"A Venyo","year":"2011","unstructured":"Venyo A, Bakir E (2011) Antegrade ureteric stenting: prospective experience in managing 30 patients; indications, complications and outcome. WebmedCentral Urol. https:\/\/doi.org\/10.9754\/journal.wmc.2011.001442","journal-title":"WebmedCentral Urol"},{"key":"3109_CR3","doi-asserted-by":"publisher","first-page":"1746","DOI":"10.1016\/S0022-5347(05)65666-2","volume":"166","author":"O Yossepowitch","year":"2001","unstructured":"Yossepowitch O, Lifshitz DA, Dekel Y et al (2001) Predicting the success of retrograde stenting for managing ureteral obstruction. J Urol 166:1746\u20131749. https:\/\/doi.org\/10.1016\/S0022-5347(05)65666-2","journal-title":"J Urol"},{"key":"3109_CR4","doi-asserted-by":"publisher","DOI":"10.1097\/IGC.0b013e318243b475","author":"Y Song","year":"2012","unstructured":"Song Y, Fei X, Song Y (2012) Percutaneous nephrostomy versus indwelling ureteral stent in the management of gynecological malignancies. Int J Gynecol Cancer. https:\/\/doi.org\/10.1097\/IGC.0b013e318243b475","journal-title":"Int J Gynecol Cancer"},{"key":"3109_CR5","doi-asserted-by":"publisher","first-page":"233","DOI":"10.1111\/j.1464-410X.2007.06960.x","volume":"100","author":"G Ibarluzea","year":"2007","unstructured":"Ibarluzea G, Scoffone CM, Cracco CM et al (2007) Supine Valdivia and modified lithotomy position for simultaneous anterograde and retrograde endourological access. BJU Int 100:233\u2013236","journal-title":"BJU Int"},{"key":"3109_CR6","doi-asserted-by":"publisher","first-page":"1189","DOI":"10.1089\/end.2010.0121","volume":"24","author":"AP Modi","year":"2010","unstructured":"Modi AP, Ritch CR, Arend D et al (2010) Multicenter experience with metallic ureteral stents for malignant and chronic benign ureteral obstruction. J Endourol 24:1189\u20131193. https:\/\/doi.org\/10.1089\/end.2010.0121","journal-title":"J Endourol"},{"key":"3109_CR7","doi-asserted-by":"publisher","first-page":"592","DOI":"10.1097\/01.ju.0000130510.28768.f5","volume":"172","author":"SY Chung","year":"2004","unstructured":"Chung SY, Stein RJ, Landsittel D et al (2004) 15-year experience with the management of extrinsic ureteral obstruction with indwelling ureteral stents. J Urol 172:592\u2013595. https:\/\/doi.org\/10.1097\/01.ju.0000130510.28768.f5","journal-title":"J Urol"},{"key":"3109_CR8","doi-asserted-by":"publisher","first-page":"431","DOI":"10.1590\/S1677-55382005000500003","volume":"31","author":"A Danilovic","year":"2005","unstructured":"Danilovic A, Antonopoulos IM, Mesquita JL, Lucon AM (2005) Likelihood of retrograde double-J stenting according to ureteral obstructing pathology. Int Braz J Urol 31:431\u2013436","journal-title":"Int Braz J Urol"},{"key":"3109_CR9","doi-asserted-by":"publisher","first-page":"556","DOI":"10.1016\/j.juro.2010.09.102","volume":"185","author":"K Izumi","year":"2011","unstructured":"Izumi K, Mizokami A, Maeda Y et al (2011) Current outcome of patients with ureteral stents for the management of malignant ureteral obstruction. J Urol 185:556\u2013561. https:\/\/doi.org\/10.1016\/j.juro.2010.09.102","journal-title":"J Urol"},{"key":"3109_CR10","doi-asserted-by":"publisher","first-page":"379","DOI":"10.1111\/j.1442-2042.2011.02731.x","volume":"18","author":"Y Kamiyama","year":"2011","unstructured":"Kamiyama Y, Matsuura S, Kato M et al (2011) Stent failure in the management of malignant extrinsic ureteral obstruction: risk factors. Int J Urol 18:379\u2013382. https:\/\/doi.org\/10.1111\/j.1442-2042.2011.02731.x","journal-title":"Int J Urol"},{"key":"3109_CR11","doi-asserted-by":"publisher","first-page":"608","DOI":"10.1016\/j.crad.2004.11.014","volume":"60","author":"MC Uthappa","year":"2005","unstructured":"Uthappa MC, Cowan NC (2005) Retrograde or antegrade double-pigtail stent placement for malignant ureteric obstruction? Clin Radiol 60:608\u2013612. https:\/\/doi.org\/10.1016\/j.crad.2004.11.014","journal-title":"Clin Radiol"},{"key":"3109_CR12","doi-asserted-by":"publisher","first-page":"316","DOI":"10.4111\/kju.2013.54.5.316","volume":"54","author":"SH Yu","year":"2013","unstructured":"Yu SH, Ryu JG, Jeong SH et al (2013) Predicting factors for stent failure-free survival in patients with a malignant ureteral obstruction managed with ureteral stents. Korean J Urol 54:316\u2013321. https:\/\/doi.org\/10.4111\/kju.2013.54.5.316","journal-title":"Korean J Urol"},{"key":"3109_CR13","doi-asserted-by":"publisher","first-page":"1118","DOI":"10.1053\/crad.2002.1114","volume":"57","author":"SV Chitale","year":"2002","unstructured":"Chitale SV, Scott-Barrett S, Ho ETS, Burgess NA (2002) The management of ureteric obstruction secondary to malignant pelvic disease. Clin Radiol 57:1118\u20131121. https:\/\/doi.org\/10.1053\/crad.2002.1114","journal-title":"Clin Radiol"},{"key":"3109_CR14","first-page":"511","volume":"86","author":"JR Harding","year":"1993","unstructured":"Harding JR (1993) Percutaneous antegrade ureteric stent insertion in malignant disease. J R Soc Med 86:511\u2013513","journal-title":"J R Soc Med"},{"key":"3109_CR15","doi-asserted-by":"publisher","first-page":"256","DOI":"10.1016\/S0009-9260(05)81852-5","volume":"49","author":"DSK Lu","year":"1994","unstructured":"Lu DSK, Papanicolaou N, Girard M et al (1994) Percutaneous internal ureteral stent placement: review of technical issues and solutions in 50 consecutive cases. Clin Radiol 49:256\u2013261. https:\/\/doi.org\/10.1016\/S0009-9260(05)81852-5","journal-title":"Clin Radiol"},{"key":"3109_CR16","doi-asserted-by":"publisher","first-page":"19","DOI":"10.4103\/0970-1591.78408","volume":"27","author":"AR Rao","year":"2011","unstructured":"Rao AR, Alleemudder A, Mukerji G et al (2011) Extra-anatomical complications of antegrade double-J insertion. Indian J Urol 27:19\u201324. https:\/\/doi.org\/10.4103\/0970-1591.78408","journal-title":"Indian J Urol"},{"key":"3109_CR17","doi-asserted-by":"publisher","first-page":"243","DOI":"10.1016\/s0210-4806(00)72439-9","volume":"24","author":"A BorrellPalanca","year":"2000","unstructured":"BorrellPalanca A, Ferrer Puchol MD, Villam\u00f3n Fort R, Gil Romero J (2000) Anterograde insertion of ureteral catheter. Actas Urol Esp 24:243\u2013247. https:\/\/doi.org\/10.1016\/s0210-4806(00)72439-9","journal-title":"Actas Urol Esp"}],"container-title":["International Urology and Nephrology"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/link.springer.com\/content\/pdf\/10.1007\/s11255-022-03109-4.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/link.springer.com\/article\/10.1007\/s11255-022-03109-4\/fulltext.html","content-type":"text\/html","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/link.springer.com\/content\/pdf\/10.1007\/s11255-022-03109-4.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2022,2,10]],"date-time":"2022-02-10T13:28:39Z","timestamp":1644499719000},"score":1,"resource":{"primary":{"URL":"https:\/\/link.springer.com\/10.1007\/s11255-022-03109-4"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2022,1,27]]},"references-count":17,"journal-issue":{"issue":"3","published-print":{"date-parts":[[2022,3]]}},"alternative-id":["3109"],"URL":"https:\/\/doi.org\/10.1007\/s11255-022-03109-4","relation":{},"ISSN":["0301-1623","1573-2584"],"issn-type":[{"type":"print","value":"0301-1623"},{"type":"electronic","value":"1573-2584"}],"subject":[],"published":{"date-parts":[[2022,1,27]]},"assertion":[{"value":"3 October 2021","order":1,"name":"received","label":"Received","group":{"name":"ArticleHistory","label":"Article History"}},{"value":"31 December 2021","order":2,"name":"accepted","label":"Accepted","group":{"name":"ArticleHistory","label":"Article History"}},{"value":"27 January 2022","order":3,"name":"first_online","label":"First Online","group":{"name":"ArticleHistory","label":"Article History"}},{"order":1,"name":"Ethics","group":{"name":"EthicsHeading","label":"Declarations"}},{"value":"The authors declare that they have no conflict of interest.","order":2,"name":"Ethics","group":{"name":"EthicsHeading","label":"Conflict of interest"}},{"value":"All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards. The study was approved by institutional ethical committee.","order":3,"name":"Ethics","group":{"name":"EthicsHeading","label":"Research involving human participants"}},{"value":"Informed consent was obtained from all individual participants in this study.","order":4,"name":"Ethics","group":{"name":"EthicsHeading","label":"Informed consent"}}]}}