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Echocardiogram revealed a patent ductus arteriosus (PDA) and a 5\u00d77\u2009mm mobile vegetation at the pulmonary artery bifurcation. Blood culture grew <jats:italic>Streptococcus<\/jats:italic> mutans. Embolisation of the vegetation to the pulmonary circulation occurred after the start of intravenous antibiotics resulting in fever relapse. Antibiotics were continued for 6 weeks and the fever settled. She underwent device closure of PDA after 12 weeks and is currently doing fine. Infective endocarditis\/endarteritis is an important differential in a patient of FUO. A thorough clinical examination is important in every case of FUO, gives an important lead into diagnosis and guides appropriate investigations to confirm it.<\/jats:p>","DOI":"10.1136\/bcr-2021-243727","type":"journal-article","created":{"date-parts":[[2021,5,27]],"date-time":"2021-05-27T11:27:42Z","timestamp":1622114862000},"page":"e243727","update-policy":"https:\/\/doi.org\/10.1136\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":3,"title":["Missed case of fever of unknown origin during COVID-19 pandemic: patent ductus arteriosus endarteritis"],"prefix":"10.1136","volume":"14","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-7606-5826","authenticated-orcid":false,"given":"Akash","family":"Batta","sequence":"first","affiliation":[{"name":"Cardiology, PGIMER, Chandigarh, India"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1536-2429","authenticated-orcid":false,"given":"Samman","family":"Verma","sequence":"additional","affiliation":[{"name":"Cardiology, PGIMER, Chandigarh, India"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2420-5209","authenticated-orcid":false,"given":"Prashant","family":"Panda","sequence":"additional","affiliation":[{"name":"Cardiology, PGIMER, Chandigarh, India"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yash Paul","family":"Sharma","sequence":"additional","affiliation":[{"name":"Cardiology, PGIMER, Chandigarh, India"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"239","published-online":{"date-parts":[[2021,5,27]]},"reference":[{"key":"2025082711392698000_14.5.e243727.1","doi-asserted-by":"crossref","DOI":"10.4103\/apc.APC_32_19","article-title":"Indian guidelines for indications and timing of intervention for common congenital heart diseases: revised and updated consensus statement of the Working group on management of congenital heart diseases","volume":"12","author":"Saxena","year":"2019","journal-title":"Ann Pediatr Cardiol"},{"key":"2025082711392698000_14.5.e243727.2","doi-asserted-by":"publisher","DOI":"10.1161\/CIRCULATIONAHA.105.592063"},{"key":"2025082711392698000_14.5.e243727.3","doi-asserted-by":"crossref","unstructured":"Deshpande P , Baczynski M , McNamara PJ . 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