{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,12,22]],"date-time":"2025-12-22T10:19:33Z","timestamp":1766398773806,"version":"3.48.0"},"reference-count":0,"publisher":"IMR Press","issue":"4","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["HSF"],"abstract":"<jats:p>Introduction: The mitral-aortic intervalvular fibrosa (MAIVF) has a vital role in the integrity of the mitral and aortic valves. Pseudoaneurysm of the MAIVF (P-MAIVF) usually ensues as a complication of aortic valve surgery, and endocarditis can itself result in several catastrophic complications.\r\nCase Presentation: A 54-year-old male with acute dyspnea was admitted to our hospital. Upon physical and cardiac examination, low blood pressure, low O2 saturation, tachycardia, and a muffled heart were observed. Findings from the transthoracic echocardiography (TTE) were normal besides a massive pericardial effusion with clot formation in the pericardial space, and a pulsatile echo-free space at the posterior aspect of the aortic prosthesis. Accordingly, transesophageal echocardiography (TEE) was performed and confirmed the presence of a P-MAIVF that was rupturing into the pericardial space, causing cardiac tamponade. The patient presented with an unstable hemodynamic situation. A cardiac surgical operation was planned, however, cardiac arrest occurred at the time of induction. The operation was unsuccessful, and the patient expired in the operating room.\r\nConclusions: Awareness of P-MAIVF formation after cardiac surgery, particularly after aortic valve replacement (AVR) due to an infected bicuspid aortic valve, is vital in order to prevent the occurrence of cardiac tamponade, a fatal event following this phenomenon. TEE is a modality of choice for identifying P-MAIVF in selected patients.<\/jats:p>","DOI":"10.1532\/hsf.1877","type":"journal-article","created":{"date-parts":[[2018,6,14]],"date-time":"2018-06-14T07:55:53Z","timestamp":1528962953000},"page":"E235-E238","source":"Crossref","is-referenced-by-count":3,"title":["Cardiac Tamponade as a Very Rare Complication of Pseudoaneurysm of Mitral Aortic Intervalvular Fibrosa: A Case Report"],"prefix":"10.31083","volume":"21","author":[{"given":"Fereshteh","family":"Ghaderi","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hamid","family":"Hosseinikhah","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Pouya","family":"Nezafati","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"16242","published-online":{"date-parts":[[2018,6,13]]},"container-title":["The Heart Surgery Forum"],"original-title":[],"link":[{"URL":"https:\/\/journal.hsforum.com\/index.php\/HSF\/article\/download\/1877\/pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/journal.hsforum.com\/index.php\/HSF\/article\/download\/1877\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,12,22]],"date-time":"2025-12-22T10:14:20Z","timestamp":1766398460000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.imrpress.com\/journal\/HSF\/21\/4\/10.1532\/hsf.1877"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2018,6,13]]},"references-count":0,"journal-issue":{"issue":"4","published-online":{"date-parts":[[2018,6,13]]}},"URL":"https:\/\/doi.org\/10.1532\/hsf.1877","relation":{},"ISSN":["1522-6662","1098-3511"],"issn-type":[{"type":"electronic","value":"1522-6662"},{"type":"print","value":"1098-3511"}],"subject":[],"published":{"date-parts":[[2018,6,13]]}}}