Stevens-Johnson syndrome (SJS) is a rare but serious disorder that is a severe hypersensitivity reaction characterized by Justinian-like lesions of the skin and mucous membranes. The condition most often occurs in response to drugs, infectious agents, or may be autoimmune in nature. Clinical manifestations of SJS include blistering, ulceration, and systemic symptoms such as fever, malaise, and intoxication. Disease progression can lead to serious complications, including infections and death, making early diagnosis and prompt treatment vital.
History of the disease and interesting historical facts
Stevens-Johnson syndrome was first described in 1922 by dermatologists (CH Stevens and MA Johnson) who observed its manifestations and clinical features in patients. The disease subsequently became the subject of scientific research and discussions in the medical community. One of the interesting historical facts is that SJS was initially mistaken for eczema before its specific dermatological manifestations and associations with drugs were identified. The study of the pathogenesis of the syndrome became possible due to the development of immunology and dermatology, which contributed to a deeper understanding of the mechanism of reaction to drugs.
Epidemiology
Stevens-Johnson syndrome has a relatively low prevalence, with estimates ranging from 1 to 6 cases per 1 million people per year. SJS is most often seen in adults, but it can also develop in children. According to studies, in 50–70% cases, the syndrome is preceded by the use of antibacterial, antiviral, and anti-inflammatory drugs. High incidence is observed among populations with a genetic predisposition and concomitant diseases, such as HIV or liver disease.
Genetic predisposition to this disease
Among the factors predisposing to the development of Stevens-Johnson syndrome, special attention is paid to genetic mechanisms. The study of gene polymorphisms associated with drug metabolism shows that certain mutations in genes such as HLA-B*1502 and HLA-A*3101 can increase the risk of developing SJS after taking certain antiseptics and antiviral agents. Studies show that carriage of this allele can be detected in patients starting treatment with certain drugs, which calls for genetic testing when choosing a therapeutic course.
Risk factors for the development of this disease
Risk factors that influence the development of Stevens-Johnson syndrome include:
- Medicines: antibiotics (especially sulfonamides), anti-inflammatory drugs and antiepileptic drugs.
- Infections: HIV, mycobacterial and viral infections that may contribute to the immune response.
- Autoimmune diseases: systemic lupus erythematosus, vasculitis.
- Physical or chemical trauma: extensive burns, thermal or chemical damage to the skin.
- Age: the syndrome is more common in young and middle-aged individuals.
Diagnosis of this disease
The diagnosis of Stevens-Johnson syndrome is based on clinical manifestations, medical history, and laboratory tests. The main symptoms include:
- The appearance of painful blisters on the skin.
- Ulcers of the mucous membranes (including the oral, nasal and ocular areas).
- Fever and general malaise.
- Rash that may progress to necrolysis.
Laboratory tests may include blood tests to check for infections and antibiotics. Radiologic tests are used to rule out pneumonia and other complications, and the differential diagnosis includes conditions such as toxic epidermal necrolysis and eczema.
Treatment
Treatment of Stevens-Johnson syndrome requires a comprehensive approach and depends on the severity of the patient's condition. Common treatment strategies include:
- Discontinuation of the offending drug.
- Supportive therapy: infusions to replenish fluid and electrolytes, monitoring Plasma protein levels.
- Pharmacological treatment: use of corticosteroids, immunomodulators (eg, cyclosporine).
- Surgical intervention: in severe cases, dermatological skin grafting may be used.
List of medications used to treat this disease
- Corticosteroids (prednisolone, methylprednisolone);
- Immunomodulators (cyclophosphamide, cyclosporine).
- Antibiotics (for secondary infections).
- Antihistamines (to reduce itching).
- Pain relievers (eg, narcotic analgesics for severe pain).
Disease monitoring
Monitoring of the patient's condition includes regular observation in hospital to assess the dynamics of the disease and possible complications. The prognosis depends on the timely initiation of treatment. The following complications are considered:
- Sepsis.
- Keratitis with possible reduction in visual acuity.
- Pneumonia or lung infections.
In some cases, the disease can lead to a significant deterioration in quality of life and disability.
Age-related features of the disease
Stevens-Johnson syndrome can manifest itself at any age, but in children and elderly patients the course of the disease may be more severe. Children are more likely to experience severe complications, while in elderly patients with concomitant pathology the process may also proceed more aggressively. Factors such as comorbid conditions and the level of immune status significantly affect the outcome of the syndrome.
Questions and Answers
- What are the main causes of Stevens-Johnson syndrome? The main causes of SSc are taking certain medications, infections and autoimmune diseases.
- What is the likelihood of complications developing with Stevens-Johnson syndrome? The probability of complications is quite high and can reach 20% if timely treatment is not carried out.
- How is Stevens-Johnson syndrome diagnosed? The diagnosis is made on the basis of the clinical picture, anamnesis and laboratory tests.
- What is the prognosis for Stevens-Johnson syndrome? The prognosis depends on the speed of medical care and can range from complete recovery to serious complications.
- Can Stevens-Johnson syndrome come back? Yes, relapses can occur, especially if triggers such as medications are not avoided.
