Severe drug-induced skin reactions: clinical pattern, diagnostics and therapy

Area of Science:

• Dermatology
• Pharmacology
• Clinical Medicine

Background:

• Severe drug-induced skin reactions encompass a spectrum of conditions.
• These include Stevens-Johnson syndrome (SJS), toxic epidermal necrolysis (TEN), generalized bullous fixed drug eruption (GBFDE), acute generalized exanthematous pustulosis (AGEP), and hypersensitivity syndrome (HSS)/drug reaction with eosinophilia and systemic symptoms (DRESS).

Purpose of the Study:

• To highlight the diverse spectrum of severe drug-induced skin reactions.
• To emphasize the importance of rapid diagnosis and management for improved patient outcomes.

Main Methods:

• Review of clinical presentations, prognoses, causative agents, and therapies for various severe cutaneous adverse drug reactions.
• Emphasis on diagnostic measures including clinical examination, skin biopsy, and laboratory investigations for AGEP and HSS/DRESS.

Main Results:

• Different reactions (SJS, TEN, GBFDE, AGEP, HSS/DRESS) exhibit distinct clinical features, prognoses, and treatment approaches.
• SJS and TEN often have poor prognoses, influenced by skin detachment extent, patient age, and comorbidities, with potential for severe sequelae.
• GBFDE has a better prognosis but can worsen with recurrence; HSS/DRESS may have long-term or recurrent courses; AGEP generally resolves without complications.

Conclusions:

• Rapid identification and withdrawal of the offending drug are crucial for managing severe cutaneous adverse drug reactions.
• Appropriate diagnostic workup and supportive care, potentially including immunomodulatory treatments, are essential.
• Prognosis varies significantly across the spectrum of reactions, necessitating tailored management strategies.