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We look at embryological origins of such a merger and share our experience in troubleshooting through the anomaly.<\/jats:p>","DOI":"10.1136\/bcr-2012-006680","type":"journal-article","created":{"date-parts":[[2012,11,21]],"date-time":"2012-11-21T15:38:21Z","timestamp":1353512301000},"page":"bcr2012006680","source":"Crossref","is-referenced-by-count":1,"title":["Anomalous venous circuit: a detour to the heart"],"prefix":"10.1136","volume":"2012","author":[{"given":"Omair","family":"Ali","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Abdul","family":"Wase","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"239","published-online":{"date-parts":[[2012,11,21]]},"reference":[{"key":"2025042707370667000_2012.nov21_1.bcr2012006680.1","first-page":"514","article-title":"Thoracic venous anomalies","volume":"49","author":"Edwards","year":"1950","journal-title":"Arch Pathol"},{"key":"2025042707370667000_2012.nov21_1.bcr2012006680.2","doi-asserted-by":"publisher","DOI":"10.1016\/0002-9149(59)90154-7"},{"key":"2025042707370667000_2012.nov21_1.bcr2012006680.3","doi-asserted-by":"crossref","first-page":"594","DOI":"10.1111\/j.1540-8159.1986.tb06617.x","article-title":"Atrial pacing via unilateral persistent left superior vena cava","volume":"9","author":"Robbens","year":"1986","journal-title":"PACE"},{"key":"2025042707370667000_2012.nov21_1.bcr2012006680.4","doi-asserted-by":"crossref","first-page":"458","DOI":"10.1378\/chest.59.4.458","article-title":"Transvenous pacemaker failure due to anomalous venous return to the heart","volume":"59","author":"Krukal","year":"1971","journal-title":"Chest"},{"key":"2025042707370667000_2012.nov21_1.bcr2012006680.5","doi-asserted-by":"crossref","first-page":"396","DOI":"10.1378\/chest.61.4.396","article-title":"Persistent left superior vena cava complicating pacemaker insertion","volume":"61","author":"Garcia","year":"1972","journal-title":"Chest"},{"key":"2025042707370667000_2012.nov21_1.bcr2012006680.6","doi-asserted-by":"publisher","DOI":"10.1378\/chest.65.2.145"},{"key":"2025042707370667000_2012.nov21_1.bcr2012006680.7","doi-asserted-by":"publisher","DOI":"10.1098\/rstl.1850.0007"},{"key":"2025042707370667000_2012.nov21_1.bcr2012006680.8","first-page":"677","article-title":"Anomalien der grosse K\u00f6rper und Lungenvenen","volume":"47","author":"Loogen","year":"1958","journal-title":"Z Kreisslauforsch"},{"key":"2025042707370667000_2012.nov21_1.bcr2012006680.9","doi-asserted-by":"crossref","first-page":"317","DOI":"10.1161\/01.CIR.33.2.317","article-title":"Congenital anomalies involving the coronary sinus","volume":"33","author":"Mantini","year":"1966","journal-title":"Circulation"},{"key":"2025042707370667000_2012.nov21_1.bcr2012006680.10","unstructured":"Wood P. 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