{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,4]],"date-time":"2026-04-04T09:31:25Z","timestamp":1775295085685,"version":"3.50.1"},"reference-count":28,"publisher":"BMJ","content-domain":{"domain":["bmj.com"],"crossmark-restriction":true},"short-container-title":["BMJ Case Reports"],"accepted":{"date-parts":[[2018,6,17]]},"abstract":"<jats:p>Wellens\u2019 syndrome is an electrocardiographic pattern of T-wave changes associated with critical stenosis of the proximal left anterior descending artery, signifying imminent risk of an anterior-wall myocardial infarction. The Wellens\u2019 electrocardiographic pattern can also be noted in several cardiac and non-cardiac diseases. We chronicle here a unique case of a patient who presented with atypical left chest pain and dizziness for 6\u2009hours. His pain started after he smoked phencyclidine-laced cannabis. Cardiac panel demonstrated normal troponin T levels. Electrocardiogram showed sinus rhythm with new deep biphasic T-wave inversions in anterolateral leads. Coronary angiography showed no pathological processes. Subsequently, ECG changes resolved coincidentally with the resolution of chest pain. He was eventually diagnosed with pseudo-Wellens\u2019 syndrome. This paper illustrates that physicians should be vigilant for Wellens\u2019 syndrome mimicked by acute phencyclidine and cannabis intoxication. Additionally, we present a review of various aetiologies of pseudo-Wellens\u2019 syndrome, especially in patients with substance abuse.<\/jats:p>","DOI":"10.1136\/bcr-2018-225755","type":"journal-article","created":{"date-parts":[[2018,6,30]],"date-time":"2018-06-30T02:25:15Z","timestamp":1530325515000},"page":"bcr-2018-225755","update-policy":"https:\/\/doi.org\/10.1136\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":8,"title":["Pseudo-Wellens\u2019 syndrome secondary to concurrent cannabis and phencyclidine intoxication"],"prefix":"10.1136","volume":"2018","author":[{"given":"Faisal","family":"Inayat","sequence":"first","affiliation":[{"name":"Allama Iqbal Medical College, Lahore, Pakistan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Iqra","family":"Riaz","sequence":"additional","affiliation":[{"name":"Einstein Medical Center, Philadelphia, Pennsylvania, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Nouman Safdar","family":"Ali","sequence":"additional","affiliation":[{"name":"Allama Iqbal Medical College, Lahore, Pakistan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Vincent M.","family":"Figueredo","sequence":"additional","affiliation":[{"name":"Institute for Heart and Vascular Health, Einstein Medical Center, Philadelphia, Pennsylvania, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"239","published-online":{"date-parts":[[2018,6,29]]},"reference":[{"key":"2025082722152933000_2018.jun29_2.bcr-2018-225755.1","doi-asserted-by":"publisher","DOI":"10.1016\/0002-8703(82)90480-X"},{"key":"2025082722152933000_2018.jun29_2.bcr-2018-225755.2","doi-asserted-by":"publisher","DOI":"10.1053\/ajem.2002.34800"},{"key":"2025082722152933000_2018.jun29_2.bcr-2018-225755.3","doi-asserted-by":"crossref","first-page":"199","DOI":"10.12659\/AJCR.907992","article-title":"Atypical Presentation of Acute Coronary Syndrome and Importance of Wellens' Syndrome","volume":"19","author":"Kyaw","year":"2018","journal-title":"Am J Case Rep"},{"key":"2025082722152933000_2018.jun29_2.bcr-2018-225755.4","doi-asserted-by":"crossref","unstructured":"Lin AN , Lin S , Gokhroo R , et al . 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