Comprehensive Diagnostic & Therapeutic Reference Profile
Also known as: SJS, Erythema Multiforme Major (historical), SJS/TEN overlap syndrome
Stevens-Johnson Syndrome (SJS) is a rare, life-threatening mucocutaneous hypersensitivity reaction characterized by extensive necrosis and detachment of the epidermis. It represents a continuum with Toxic Epidermal Necrolysis (TEN), defined by the extent of body surface area (BSA) involved (<10% for SJS).
SJS is primarily triggered by medications, most notably sulfonamides, antiepileptics (carbamazepine, phenytoin, lamotrigine), allopurinol, and NSAIDs. Genetic predispositions, specifically HLA alleles (e.g., HLA-B*15:02 in Asian populations), significantly increase risk.
The process involves a Type IV hypersensitivity reaction. Cytotoxic T-lymphocytes and Natural Killer (NK) cells release granulysin and perforin/granzyme B, triggering massive keratinocyte apoptosis. This results in dermo-epidermal separation and blistering.
SJS has an annual incidence of 1–6 per million people. It affects all ages but is more prevalent in patients with compromised immune systems, such as those with HIV or malignancy.
A. Early Symptoms
A. Clinical Assessment: Evaluation of mucosal involvement and BSA.
B. Laboratory Testing: CBC for leukopenia/anemia, electrolyte imbalances.
C. Imaging Studies: Chest X-ray to rule out pneumonitis.
D. Functional Tests: Ophthalmological slit-lamp examination.
E. Biopsy Findings: Full-thickness epidermal necrosis with minimal dermal inflammation.
F. Genetic Testing: HLA screening if applicable.
G. Differential Diagnosis: Staphylococcal Scalded Skin Syndrome (SSSS), Erythema Multiforme, Pemphigus.
Test Name: Complete Blood Count (CBC)
Type: Blood Test
Purpose: Assess systemic inflammation/sepsis.
Expected Findings: Leukopenia or leukocytosis.
Interpretation: Indicates systemic immune activation.
Chest X-ray: Used to evaluate for lung involvement or secondary pneumonia, which carries a poor prognosis.
SSSS involves superficial granular layer cleavage, whereas SJS involves deep dermo-epidermal separation. EM lacks systemic symptoms.
Sepsis, multi-organ failure, esophageal strictures, permanent blindness, pulmonary fibrosis.
A. Lifestyle Modifications: Supportive care in a sterile environment.
B. Preventive Measures: Avoidance of causative agents.
C. Medical Treatment
Mortality ranges from 5–15%. Recovery involves re-epithelialization over weeks, but long-term sequelae (vision loss, scarring) are common.
Genetic screening (HLA-B*15:02) before initiating high-risk antiepileptics.
The following homeopathic remedies have been historically indicated for symptoms associated with Stevens-Johnson Syndrome. Selection should be based on individualized symptom totality and constitutional assessment.
This clinical reference profile is compiled from authoritative medical sources for educational purposes. Always verify clinical data with current medical guidelines.
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