China Journal of Leprosy and Skin Diseases ›› 2023, Vol. 39 ›› Issue (5): 382-386.doi: 10.12144/zgmfskin202305382

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Update of etiology and risk factors of toxic epidermal necrolysis

GAO Lan1, LAO Limin2   

  1. 1 Department of Public Health, School of Medicine, Zhejiang University, Hangzhou 310011, China;2 The Second Affiliated Hospital of Zhejiang University, Hangzhou 310009, China
  • Online:2023-05-15 Published:2023-05-17

Abstract: Toxic epidermal necrolysis(TEN) is a skin-mucosal reaction that can be life-threatening. Drugs are the main cause of SJS/TEN. Pharmacogenomics reveals that HLA genes are closely related to SJS/TEN caused by aromatic anticonvulsants and non-steroidal anti-inflammatory drugs(NSAIDs). Cytochrome P450(CYP450)variants can cause slow drug metabolism and increase the risk of SJS/TEN. Immune checkpoint inhibitors can cause skin immune-related adverse effects, including SJS/TEN. Human herpes virus, Epstein-Barr virus, Mycoplasma pneumoniae and other infectious factors are related to the development of SJS/TEN. Other factors such as autoimmune diseases and active cancer are also potential risk factors for SJS/TEN. The update of etiology and risk factors of toxic epidermal necrolysis was reviewed in this paper.

Key words: toxic epidermal necrolysis, etiology, risk factors