These initial symptoms can oerlap considerably with those of other cardiac and non-cardiac conditions, including neuroleptic malignant syndrome (NMS), which may itself be caused by antipsychotics.

• 这些始发症状还与其他的心脏和非心脏的原因导致的疾病有很大相似之处，如抗精神病药物引起恶性综合征。