{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,30]],"date-time":"2026-09-30T11:59:16Z","timestamp":1790769556270,"version":"4.1.0"},"reference-count":0,"publisher":"European Association of Cardiothoracic Surgery (EACTS Publishing Ltd)","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["MMCTS"],"published-print":{"date-parts":[[2026,9,30]]},"abstract":"<jats:p>A 25-year-old asymptomatic 64 kg female with an incidental heart murmur was found, on echocardiography, to have a 2 cm echogenic mass beneath the pulmonary valve, with a peak gradient of 11 mmHg and mild pulmonic regurgitation. Gated computed tomography angiogram showed that the mass was located within the infundibulum of the right ventricle, beneath the non-adjacent leaflet of the pulmonary valve. The tumour had a broad base attachment to the interventricular septum and was in close proximity to the left anterior descending artery. The patient underwent median sternotomy via a limited skin incision. Cardiopulmonary bypass was initiated via aortic, superior vena cava and femoral vein cannulation. After diastolic cardioplegic arrest, a transverse infundibulotomy was made. A firm, multilobulated tumour was excised en bloc with a shallow cuff of septal muscle, including a white pedunculated base and gelatinous yellow stalk. A feeding septal artery was oversewn. The infundibulotomy was closed in two layers with 5\/0 polypropylene sutures. The heart was de-aired, the cross-clamp removed, and the procedure completed routinely.<\/jats:p>","DOI":"10.1510\/mmcts.2026.068","type":"journal-article","created":{"date-parts":[[2026,9,30]],"date-time":"2026-09-30T11:26:30Z","timestamp":1790767590000},"source":"Crossref","is-referenced-by-count":0,"title":["Transverse infundibulotomy for resection of a right ventricular outflow tract myxoma"],"prefix":"10.1510","member":"10966","published-online":{"date-parts":[[2026,9,30]]},"container-title":["Multimedia Manual of Cardio-Thoracic Surgery"],"original-title":[],"deposited":{"date-parts":[[2026,9,30]],"date-time":"2026-09-30T11:26:33Z","timestamp":1790767593000},"score":1,"resource":{"primary":{"URL":"https:\/\/mmcts.org\/case-report\/2245"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2026,9,30]]},"references-count":0,"URL":"https:\/\/doi.org\/10.1510\/mmcts.2026.068","relation":{},"ISSN":["1813-9175"],"issn-type":[{"value":"1813-9175","type":"electronic"}],"subject":[],"published":{"date-parts":[[2026,9,30]]}}}