PT - JOURNAL ARTICLE AU - Faisal Inayat AU - Iqra Riaz AU - Nouman Safdar Ali AU - Vincent M. Figueredo TI - Pseudo-Wellens’ syndrome secondary to concurrent cannabis and phencyclidine intoxication AID - 10.1136/bcr-2018-225755 DP - 2018 Jun 30 TA - BMJ Case Reports PG - bcr-2018-225755 VI - 2018 4099 - http://casereports.bmj.com/content/2018/bcr-2018-225755.short 4100 - http://casereports.bmj.com/content/2018/bcr-2018-225755.full AB - Wellens’ 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’ 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 hours. 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’ syndrome. This paper illustrates that physicians should be vigilant for Wellens’ syndrome mimicked by acute phencyclidine and cannabis intoxication. Additionally, we present a review of various aetiologies of pseudo-Wellens’ syndrome, especially in patients with substance abuse.