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This case highlights the unusual occurrence of BCT during HUTT, the differential diagnosis of BCT and the utility of EPS to reliably identify the type and origin of BCT.<\/jats:p>","DOI":"10.1136\/bcr-2021-245083","type":"journal-article","created":{"date-parts":[[2021,10,4]],"date-time":"2021-10-04T12:53:17Z","timestamp":1633351997000},"page":"e245083","update-policy":"https:\/\/doi.org\/10.1136\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":0,"title":["Interesting presentation of a broad complex tachycardia during the head up tilt table test"],"prefix":"10.1136","volume":"14","author":[{"given":"Muhammad Taha","family":"Khan","sequence":"first","affiliation":[{"name":"Cardiac Electrophysiology, National Institute of Cardiovascular Diseases, Karachi, Sindh, Pakistan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Aamir","family":"Hameed","sequence":"additional","affiliation":[{"name":"Medicine, Section of Cardiology, Agha Khan University Hospital, Karachi, Sindh, Pakistan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9408-6084","authenticated-orcid":false,"given":"Yawer","family":"Saeed","sequence":"additional","affiliation":[{"name":"Medicine, Section of Cardiology, Agha Khan University Hospital, Karachi, Sindh, Pakistan"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"239","published-online":{"date-parts":[[2021,10,4]]},"reference":[{"doi-asserted-by":"crossref","unstructured":"Page R , Joglar J , Caldwell M . 2015 ACC\/AHA\/HRS guideline for the management of adult patients with supraventricular tachycardia. 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