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We report two patients presenting with anterior ST\u2010segment elevation in whom emergent coronary angiography revealed acute occlusion of a nondominant RCA with right ventricular branch compromise. In both cases, chest pain and ST\u2010segment elevation improved immediately after RCA reperfusion and before intervention on other coronary lesions. These cases highlight the importance of recognizing this atypical presentation and carefully assessing coronary anatomy to identify the culprit vessel and guide timely revascularization.<\/jats:p>","DOI":"10.1155\/cric\/3860471","type":"journal-article","created":{"date-parts":[[2026,9,15]],"date-time":"2026-09-15T06:34:17Z","timestamp":1789454057000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Anterior ST\u2010Segment Elevation From Nondominant Right Coronary Artery Occlusion: Lessons From Two Cases"],"prefix":"10.1155","volume":"2026","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-2913-901X","authenticated-orcid":false,"given":"Hadeel","family":"Ayesh","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0003-1111-5065","authenticated-orcid":false,"given":"Mohammad","family":"Al-Shaer","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0002-4952-4879","authenticated-orcid":false,"given":"Shoukri","family":"Alsleibi","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2026,9,14]]},"reference":[{"key":"e_1_2_11_1_2","doi-asserted-by":"publisher","DOI":"10.1136\/pgmj.2010.103887"},{"key":"e_1_2_11_2_2","doi-asserted-by":"publisher","DOI":"10.1056\/NEJM199404283301706"},{"key":"e_1_2_11_3_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.recesp.2015.04.010"},{"key":"e_1_2_11_4_2","doi-asserted-by":"publisher","DOI":"10.1007\/s12265-012-9422-2"},{"key":"e_1_2_11_5_2","first-page":"1","article-title":"Anatomy of the Coronary Arteries","volume":"15","author":"James T. 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