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Stevens-Johnson syndrome (SJS) and Toxic Epidermal Necrolysis (TEN) are blistering cutaneous disorders that often manifest with epidermal and mucosal necrosis. In extreme cases, the upper or bronchial airways are threatened, necessitating intubation and mechanical ventilation. This systematic review and meta-analysis examines the prevalence of mechanical ventilation (MV) in patients with SJS or TENS, despite maximal medical therapy, and additionally aims to identify the risk factors associated with this requirement. A systematic review of the literature was performed using the PRISMA guidelines and meta-analysis of proportions. Six articles were included, with pooled total of 18648 cases. The weighted prevalence of MV was 27.5% (95%CI 17.8–39.9%). The need for MV was more closely associated with TEN, compared to SJS (OR 4.40, 95%CI 2.73–7.10,  I2 =48%,  p &lt;.00001.) Risk factors associated with the need for MV included bacteremia (OR 5.02, 95%CI 2.87–8.79,  I2 =0%,  p &lt;.00001), shock/organ failure on admission (OR 261.99, 95%CI 21.88–3137,  I2 =71,  p &lt;.0001), total body surface area (TBSA) &gt;30% (OR 4.47, 95%CI 1.41–14.20,  I2 =71,  p =.01.) Limited published evidence with significant heterogeneity exists within the literature regarding the need for MV in SJS and TEN. Greater cutaneous involvement, and more critically unwell patients appear more likely to require MV.

Ventilatory support in Stevens-Johnson syndrome and toxic epidermal necrolysis: a systematic review and meta-analysis