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In patients with long QT intervals, hypokalaemia and drugs which further delay repolarization may facilitate the development of life threatening arrhythmias.<\/jats:p>","DOI":"10.1136\/pgmj.61.715.419","type":"journal-article","created":{"date-parts":[[2008,12,29]],"date-time":"2008-12-29T20:58:16Z","timestamp":1230584296000},"page":"419-421","source":"Crossref","is-referenced-by-count":4,"title":["Ventricular arrhythmias complicating weight reduction therapy in a patient with a prolonged QT interval"],"prefix":"10.1093","volume":"61","author":[{"given":"J C","family":"O'Keefe","sequence":"first","affiliation":[{"name":"Department of Cardiology, St Bartholomew's Hospital , London EC1A 7BE, UK"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"G S","family":"Butrous","sequence":"additional","affiliation":[{"name":"Department of Cardiology, St Bartholomew's Hospital , London EC1A 7BE, UK"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"D S","family":"Dymond","sequence":"additional","affiliation":[{"name":"Department of Cardiology, St Bartholomew's Hospital , London EC1A 7BE, UK"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"P","family":"Littlejohns","sequence":"additional","affiliation":[{"name":"Chase Farm Hospital , Enfield, Middlesex, UK"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"N","family":"Peters","sequence":"additional","affiliation":[{"name":"Chase Farm Hospital , Enfield, Middlesex, UK"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"S O","family":"Banim","sequence":"additional","affiliation":[{"name":"Department of Cardiology, St Bartholomew's Hospital , London EC1A 7BE, UK"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"286","published-online":{"date-parts":[[1985,5,1]]},"reference":[{"key":"ref_1","first-page":"355","article-title":"An analysis of the time relation of electrocardiograms","volume":"7","author":"BAZETT, H.C.","year":"1920","unstructured":"BAZETT, H.C. 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