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Here, we present a case of a man in his 40s presented with flecainide overdose with wide-complex tachycardia that was treated with intravenous sodium bicarbonate following failure of amiodarone to normalise QRS interval.<\/jats:p>","DOI":"10.1136\/bcr-2023-256391","type":"journal-article","created":{"date-parts":[[2024,6,26]],"date-time":"2024-06-26T22:45:18Z","timestamp":1719441918000},"page":"e256391","update-policy":"https:\/\/doi.org\/10.1136\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":2,"title":["Flecainide overdose-induced wide-complex tachyarrhythmia treated with sodium bicarbonate infusion"],"prefix":"10.1136","volume":"17","author":[{"ORCID":"https:\/\/orcid.org\/0009-0007-2895-5131","authenticated-orcid":false,"given":"James","family":"Boris","sequence":"first","affiliation":[{"name":"Internal Medicine, Albert Einstein Medical Center Montgomery, East Norriton, PA, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hussein","family":"Al-Sudani","sequence":"additional","affiliation":[{"name":"Internal Medicine, Albert Einstein Medical Center Montgomery, East Norriton, PA, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Aaron","family":"Brophy","sequence":"additional","affiliation":[{"name":"Internal Medicine, Albert Einstein Medical Center Montgomery, East Norriton, PA, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"239","published-online":{"date-parts":[[2024,6,26]]},"reference":[{"key":"2025082712414052000_17.6.e256391.1","doi-asserted-by":"publisher","DOI":"10.4330\/wjc.v7.i2.76"},{"key":"2025082712414052000_17.6.e256391.2","doi-asserted-by":"publisher","DOI":"10.1111\/j.1742-6723.2006.00909.x"},{"key":"2025082712414052000_17.6.e256391.3","doi-asserted-by":"crossref","DOI":"10.7812\/TPP\/12-086","article-title":"ECG diagnosis: Flecainide 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