Stevens-Johnson syndrome and toxic epidermal necrolysis: follow-up of pulmonary function after remission

Autor: Tu Anh Duong, N. de Prost, Saskia Ingen-Housz-Oro, Bernard Maitre, Martine Bagot, A.-S. Carrié, Laurence Valeyrie-Allanore, Pierre Wolkenstein, Olivier Chosidow, J.-C. Roujeau, F. Zerah
Rok vydání: 2014
Předmět:
Zdroj: The British journal of dermatology. 172(2)
ISSN: 1365-2133
Popis: Summary Background Acute-stage specific bronchial epithelial detachment has been described in 27% of patients with Stevens–Johnson syndrome (SJS) and toxic epidermal necrolysis (TEN). Objectives To assess the pulmonary function of patients with SJS/TEN after remission. Methods Analysis of pulmonary function tests (PFTs) performed during the usual follow-up of patients with SJS/TEN managed in a referral centre from April 2007 to January 2010. Results Of 58 patients admitted, 32 underwent PFTs (17 male, 15 female). The median time from the acute stage to PFTs was 3 months (interquartile range 1–18). Three patients had grade 2 dyspnoea. Eighteen patients (56%) had abnormal PFTs, including 13 patients (41%) with moderately altered diffusion capacity for carbon monoxide (DLCO) normalized by the alveolar volume (VA) (giving the ratio KCO, which equals DLCO/VA) and five patients with decreased total lung capacity. No airway obstruction was observed. Patients with decreased KCO had higher initial detached body surface area than others (30% vs. 10%, P = 0·006), as did those with decreased DLCO (25% vs. 10%; P = 0·054). There were correlations between detached body surface area and both KCO (r = −0·41, P = 0·026) and DLCO (r = −0·47, P = 0·011). Among 10 patients with decreased KCO on the first PFT, eight patients had a sustained decrease in KCO on a second PFT. Conclusions More than half of patients with SJS/TEN displayed abnormalities on PFTs, mainly diffusion impairment, which was associated with higher initial skin surface detachment. These abnormalities were mostly asymptomatic and remained stable over time.
Databáze: OpenAIRE