{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,28]],"date-time":"2026-09-28T09:59:56Z","timestamp":1790589596779,"version":"4.1.0"},"reference-count":10,"publisher":"Springer Science and Business Media LLC","issue":"1","license":[{"start":{"date-parts":[[2026,9,28]],"date-time":"2026-09-28T00:00:00Z","timestamp":1790553600000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0"},{"start":{"date-parts":[[2026,9,28]],"date-time":"2026-09-28T00:00:00Z","timestamp":1790553600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0"}],"content-domain":{"domain":["link.springer.com"],"crossmark-restriction":false},"short-container-title":["Egypt Heart J"],"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Background<\/jats:title>\n                    <jats:p>Muscular ventricular septal aneurysm (VSA) is commonly caused by myocardial infarction, myocarditis or trauma, but it may occasionally be congenital. For congenital VSA, the diagnosis is challenging, and the therapeutic strategy and prognosis remain uncertain.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Case presentation<\/jats:title>\n                    <jats:p>A 32-year-old man was admitted following a detection of left ventricular aneurysm on echocardiography during a routine health checkup. The patient was asymptomatic, the echocardiography showed an aneurysm in the midventricular septum associated with regional hypokinesis, accompanied by left ventricular dilation and reduced left ventricular ejection fraction (LVEF) of 46%. Coronary computed tomography angiography and cardiac magnetic resonance localized the muscular VSA and revealed a cyst at the anteroinferior margin of the pericardium, further coronary angiography was unremarkable. Laboratory findings such as cardiac markers, rheumatologic, immunologic and inflammatory markers were within normal limits. The diagnosis of congenital muscular VSA coexisting with a pericardial cyst was considered. Pharmacological treatment for heart failure was initiated to prevent further reduction in LVEF. At the 3-month and 1-year follow-ups the patient remained asymptomatic, and echocardiography demonstrated the LVEF increased from 50% to 57%.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>Congenital muscular VSA is an uncommon cardiac abnormality that may be accompanied by impaired cardiac function. Treatment for heart failure could improve the cardiac function.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1186\/s43044-026-00786-9","type":"journal-article","created":{"date-parts":[[2026,9,28]],"date-time":"2026-09-28T09:48:40Z","timestamp":1790588920000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Congenital muscular ventricular septal aneurysm coexisting with a pericardial cyst, a case report"],"prefix":"10.1186","volume":"78","author":[{"given":"Qian","family":"Mou","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jin-jing","family":"Li","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xue","family":"Li","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7911-1763","authenticated-orcid":false,"given":"Qiang","family":"Chen","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2026,9,28]]},"reference":[{"issue":"6","key":"786_CR1","doi-asserted-by":"publisher","first-page":"1","DOI":"10.12968\/hmed.2019.0402","volume":"81","author":"D Arslan","year":"2020","unstructured":"Arslan D, Keceli AM, Gokdemir M (2020) Aneurysm of cardiac muscular interventricular septum as a result of blunt chest trauma. Br J Hosp Med (Lond) 81(6):1\u20133","journal-title":"Br J Hosp Med (Lond)"},{"issue":"5","key":"786_CR2","doi-asserted-by":"publisher","first-page":"rjac114","DOI":"10.1093\/jscr\/rjac114","volume":"2022","author":"T Kawahira","year":"2022","unstructured":"Kawahira T, Miyashita F, Suzuki T (2022) Rare case of ruptured muscular ventricular septal aneurysm due to silent myocardial ischemia in adult. J Surg Case Rep 2022(5):rjac114","journal-title":"J Surg Case Rep"},{"key":"786_CR3","doi-asserted-by":"crossref","unstructured":"Morelli AJ, Parker S, Naik R, Reaves M, Guerrier K, Joshi V et al (2023) Congenital aneurysm of the muscular ventricular septum: morphologic evolution of the septum. CASE (Philadelphia, Pa) 7(3):93\u2009\u2013\u20095","DOI":"10.1016\/j.case.2022.12.003"},{"key":"786_CR4","doi-asserted-by":"publisher","first-page":"183050","DOI":"10.1155\/2011\/183050","volume":"2011","author":"H Altay","year":"2011","unstructured":"Altay H, Altin C, Coner A, Muderrisoglu H (2011) Normal coronary artery patient presenting with left ventricular aneurysm. Case Rep Med 2011:183050","journal-title":"Case Rep Med"},{"issue":"1","key":"786_CR5","doi-asserted-by":"publisher","first-page":"25","DOI":"10.1023\/A:1014344415888","volume":"18","author":"JD Kasprzak","year":"2002","unstructured":"Kasprzak JD, Borkowski M, Rogowski W, Drozdz J, Krzemi\u0144ska-Pakula M (2002) A congenital complex including muscular interventricular septal aneurysm in an adult: case report and review of literature. Int J Cardiovasc Imaging 18(1):25\u201330","journal-title":"Int J Cardiovasc Imaging"},{"key":"786_CR6","doi-asserted-by":"crossref","unstructured":"Wong SH, Coleman DM, Aftimos S (2007) Congenital aneurysm of the muscular interventricular septum in association with cardiac arrhythmias and a chromosomal abnormality. Pediatr Cardiol 28(1):57\u201360","DOI":"10.1007\/s00246-004-0928-6"},{"issue":"10","key":"786_CR7","first-page":"e29994","volume":"14","author":"HH Nguyen","year":"2022","unstructured":"Nguyen HH, Jay PY (2022) Congenital Aneurysm of the Muscular Interventricular Septum Associated With Bifascicular Block. Cureus 14(10):e29994","journal-title":"Cureus"},{"issue":"7","key":"786_CR8","doi-asserted-by":"publisher","first-page":"64","DOI":"10.1007\/s11886-019-1153-5","volume":"21","author":"M Khayata","year":"2019","unstructured":"Khayata M, Alkharabsheh S, Shah NP, Klein AL (2019) Pericardial Cysts: a Contemporary Comprehensive Review. Curr Cardiol Rep 21(7):64","journal-title":"Curr Cardiol Rep"},{"issue":"4","key":"786_CR9","doi-asserted-by":"publisher","first-page":"1585","DOI":"10.3390\/jcm15041585","volume":"15","author":"A Agrawal","year":"2026","unstructured":"Agrawal A, Elnashar M, Garg K, Mustafa A, Rosenzveig A, Arockiam AD, Haroun E, Khurana R, Klein AL, Wang TKM (2026) Contemporary Review of Clinical Features, Multi-Modality Imaging, and Management of Pericardial Cysts. J Clin Med 15(4):1585","journal-title":"J Clin Med"},{"key":"786_CR10","doi-asserted-by":"crossref","unstructured":"Kar SK, Ganguly T (2017 ) Current concepts of diagnosis and management of pericardial cysts. Indian Heart J 69(3):364\u2013370","DOI":"10.1016\/j.ihj.2017.02.021"}],"container-title":["The Egyptian Heart Journal"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/link.springer.com\/content\/pdf\/10.1186\/s43044-026-00786-9.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/link.springer.com\/article\/10.1186\/s43044-026-00786-9","content-type":"text\/html","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/link.springer.com\/content\/pdf\/10.1186\/s43044-026-00786-9.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,9,28]],"date-time":"2026-09-28T09:48:42Z","timestamp":1790588922000},"score":1,"resource":{"primary":{"URL":"https:\/\/link.springer.com\/10.1186\/s43044-026-00786-9"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2026,9,28]]},"references-count":10,"journal-issue":{"issue":"1","published-online":{"date-parts":[[2026,12]]}},"alternative-id":["786"],"URL":"https:\/\/doi.org\/10.1186\/s43044-026-00786-9","relation":{},"ISSN":["2090-911X"],"issn-type":[{"value":"2090-911X","type":"electronic"}],"subject":[],"published":{"date-parts":[[2026,9,28]]},"assertion":[{"value":"4 June 2026","order":1,"name":"received","label":"Received","group":{"name":"ArticleHistory","label":"Article History"}},{"value":"21 September 2026","order":2,"name":"accepted","label":"Accepted","group":{"name":"ArticleHistory","label":"Article History"}},{"value":"28 September 2026","order":3,"name":"first_online","label":"First Online","group":{"name":"ArticleHistory","label":"Article History"}},{"value":"Ethics approval and consent to participate: The work was conducted in accordance with the Declaration of Helsinki. The study protocol was approved by the ethics committee of the Shenzhen hospital of southern medical university. Informed consent: Informed consent was obtained from the patient for participation and\/or publication of clinical details and images.","order":1,"name":"Ethics","label":"Ethics approval and consent to participate","group":{"name":"EthicsHeading","label":"Declarations"}},{"value":"All authors and the individual person have agreed with the consent to Publish declaration.","order":2,"name":"Ethics","label":"Consent for publication","group":{"name":"EthicsHeading","label":"Declarations"}},{"value":"The authors declare no competing interests.","order":3,"name":"Ethics","label":"Competing interests","group":{"name":"EthicsHeading","label":"Declarations"}}],"article-number":"74"}}