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An HNA was defined by the presence of any of the following parameters: infrarenal neck angulation\u2009&gt;\u200960\u00b0; neck length\u2009&lt;\u200915\u00a0mm; conical neck; circumferential calcification\u2009\u2265\u200950%; or thrombus\u2009\u2265\u200950%. Before occluding the entire aneurysm during the procedure, a buddy wire was loaded prophylactically into the sac through the contralateral limb side. If a type Ia endoleak (ELIa) occurred and persisted despite adjunctive treatment such as balloon moulding or cuff extension, this preloaded wire could be utilized to enable a catheter to reach the space between the stent graft and sac neck to perform coil embolization. In the absence of ELIa, the wire was simply retracted. The primary outcome of this study was freedom from sac expansion and endoleak-related reintervention during the follow-up period; secondary outcomes included technical success and intraoperative and in-hospital postoperative complications.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      Among the 28 patients with a hostile neck morphology, 11 (39.5%) who presented with ELIa underwent intraprocedural treatment involving sac neck-targeted detachable coil embolization. Seventeen individuals (60.7%) of the total patient population did not undergo coiling. All patients in the coiling group underwent balloon moulding, and 2 patients additionally underwent cuff extension. In the noncoiling group, 14 individuals underwent balloon moulding as a treatment for ELIa, while 3 patients did not exhibit ELIa during the procedure. The coiling group showed longer operating durations (81.27\u2009\u00b1\u200911.61 vs. 70.71\u2009\u00b1\u20097.17\u00a0min,\n                      <jats:italic>P<\/jats:italic>\n                      \u2009&lt;\u20090.01) and greater contrast utilization than the noncoiling group (177.45\u2009\u00b1\u200952.41 vs. 108.24\u2009\u00b1\u200917.49\u00a0ml,\n                      <jats:italic>P<\/jats:italic>\n                      \u2009&lt;\u20090.01). In the entire cohort, the technical success rate was 100%, and there were no procedure-related complications. At a mean follow-up of 18.6\u2009\u00b1\u20095.2\u00a0months (range 12\u201331), there were no cases of sac expansion (19 cases of sac regression, 67.86%; 9 cases of stability, 32.14%) or endoleak-related reintervention.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>Selective aneurysmal sac neck-targeted embolization for the treatment of ELIa in AAA patients with an HNA undergoing EVAR is safe and may prevent type Ia endoleak and related sac expansion after EVAR.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1186\/s13019-024-02550-z","type":"journal-article","created":{"date-parts":[[2024,2,4]],"date-time":"2024-02-04T13:02:18Z","timestamp":1707051738000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Selective aneurysmal sac neck-targeted embolization during endovascular repair of abdominal aortic aneurysm with hostile neck anatomy"],"prefix":"10.1186","volume":"19","author":[{"given":"Lifeng","family":"Zhang","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yongjiang","family":"Tang","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jiantao","family":"Wang","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Xianjun","family":"Liu","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yang","family":"Liu","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Wei","family":"Zeng","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Chunshui","family":"He","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"297","published-online":{"date-parts":[[2024,2,4]]},"reference":[{"issue":"5","key":"2550_CR1","doi-asserted-by":"publisher","first-page":"1438","DOI":"10.1016\/j.jvs.2021.04.037","volume":"74","author":"RS Rokosh","year":"2021","unstructured":"Rokosh RS, Wu WW, Schermerhorn M, Chaikof EL. 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