Stevens Johnson syndrome and toxic epidermal necrolysis
Last Updated: 2023-07-07
Author(s): Anzengruber F., Navarini A.
ICD11: EB13.2
- Staphylococcal scaled skin syndrome (SSSS)
- Erythema exsudativum multiforme
- Pemphigus vulgaris
- Pemphigus foliaceus
- Bullous pemphigoid
- Stevens Johnson syndrome : Stevens & Johnson, 1922
- Toxic epidermal necrolysis : Lyell, 1956
Stevens Johnson Syndrome, SJS, Toxic epidermal necrolysis, TEN, Lyell syndrome, Epidermolysis necroticans combustiformis, Epidermolysis acuta toxica.
Rare, serious, potentially lethal, mucocutaneous disease, which is usually triggered by the ingestion of drugs. There is detachment of the epidermis and the appearance of necrosis. Stevens Johnson syndrome (SJS) and toxic epidermal necrolysis (TEN) correspond to one clinical picture. In 100% there is cheilitis and stomatitis. What differs is the extensive spread to the rest of the skin
- Division
- Stevens Johnson syndrome: 10% of the body surface, mucous membranes are affected (eyes, oral cavity, genital)
- SJS/TEN overlap syndrome: > 10% to < 30% of body surface area, mucous membranes are affected (eyes, oral cavity, genital).
- TEN: > 30% of body surface, mucous membranes are affected (eyes, oral cavity, genital).
- Incidence (for SJS, SJS/TEN and TEN): 2-7/1,000,000/per annum
- SJS:TEN = approx. 3:1
- 100-fold increased incidence in HIV-positive patients
- Women > men
- Medicines:
- Allopurinol
- Anticonvulsants
- Phenobarbital
- Primidone
- (Ox)-carbamazepine
- (Fos)-phenytoin
- Lamotrigine
- Nevirapine
- NSAIDs
- Oxicam
- Piroxicam
- Tenoxicam
- Meloxicam
- Diclofenac
- COX-2 inhibitors
- Etoricoxib
- Oxicam
- Paracetamol
- Metamizole
- Sulfasalazine
- Amifostine
- Antibiotics
- Azithromycin
- Penicillins
- Amoxicillin
- Ampicillin
- Sulphonamides
- Sulfadiazine
- Sulfadoxine
- Sulfamethoxazole
- Clarithromycin
- Erythromycin
- Cephalosporins
- Cefadroxil
- Cefixime
- Ceftriaxone
- Cefuroxime
- Doxycycline
- Fluoroquinolones
- Ciprofloaxcin
- levofloxacin
- Pefloxacin
- Rifampicin
- Infections
- Mycoplasma pneumoniae
- Cytomegalovirus infections
- Vaccinations
- Contrast media
- Nutrients
- Bone marrow transplants
- Radiotherapy
- Predisposing factors
- HIV infection
- Genetics:
- HLA: HLA-B*1502, HLA-A*3101, B*5801, HLA-B*1502, HLA-A*3101, HLA-B*5801.
- Polymorphisms
- Prodromal stage:
- Deteriorated AZ, fever
- Influenza-like symptoms
- Facultative:
- Photophobia
- Conjunctival pruritus
- Pain on swallowing
- Myalgias
- Arthralgias
- Purulent rhinitis
- Joint pain
- Generalised lymphadenopathy
- Liver and spleen involvement
- Facultative:
- Mucocutaneous symptoms
- Mostly appear after 1-3, but sometimes after up to 14 days.
- Lesions usually begin on the face or trunk before spreading to other body locations.
- The capillitium is not affected, but palmoplantar involvement is also seen in some cases.
- The duration of mucocutaneous symptoms is reported to be 8-12 days.
- Mucocutaneous:
- In 90% of cases, the oral mucosa is affected
- Erosions and ulcerations.
- Hemorrhagic crusts on the lips.
- The eyes (conjunctivits, sometimes purulent) are almost always affected
- Incrusted lesions on the upper and lower eyelids.
- Corneal ulcer, panophthalmitis, photophobia, synechiae, symblepharon.
- Genital erosions
- Synechiae and stenosis may develop in the labia, urethra.
- Urethritis, urinary retention, cystitis.
- Involvement of the pharynx may be observed in almost all patients.
- Rarely, the trachea, bronchus, oesophagus and intestine may also be involved.
- In 90% of cases, the oral mucosa is affected
- Cutaneous manifestation:
- Epidermal detachments, erosions and sometimes ulcers
- Cocardiform plaques and macules
- Often scarlatiniform, truncal exanthema
- Development of vesicles and bullae
- Nikolski phenomenon I (blisters can be triggered on healthy skin or non-blistered skin can be displaced when lateral pressure is applied)
- Nikolski phenomenon II (pre-existing blisters can be displaced on lateral pressure)
- Asboe-Hansen sign (the blister expands laterally on pressure
- Coarse lamellar desquamation/the skin peels off flat
- Necrosis
- Perhaps onycholysis
- Reepithelialisation occurs after a few days
- Lab
- Elevated ESR, CRP, leukocytosis
- Egg-wise electrophoresis (Increased α- & γ-globulin fraction)
- Anemia (approx. 15%)
- Lymphopenia (frequent)
- Neutropenia
- occurs in about 1/3 of all patients
- Often masked by systemic glucocorticoids
- Correlates with a poor prognosis
- Eosinophilia (20%)
- Elevated transaminases (approx. 15%)
- Proteinuria and haematuria (5%)
- Bacteraemia (approx. 27%)
- Characteristics of a severe course:
- Urea >10 mmol/L
- Glucose >14 mmol/L
- ALT (up to 2-3 times the normal value)
- Anamnesis (medication history)
- Clinical image
- Biopsy
- Frozen section procedure. Important to make a distinction from SSSS. Thus has a pronounced therapeutic consequence!
- Direct immunofluorescence
- Using the algorithm of drug causality for epidermal necrolysis (ALDEN)
- Laboratory
- BB, creatinine, electrolytes, electrophoresis
- Bact. Swabs, blood cultures, cultures of urinary catheters and PEG tubes, if applicable, should be repeated every 2 days!
Subepidermal blister cleft, necrotic keratinocytes in the epidermis at the blister roof, otherwise unchanged str. corneum, ↑ eosinophils in the epidermis, spiny cells with ballooned degeneration. In the corium lymphohistiocytic infiltrate, mainly arranged perivascularly.
- Hypoalbuminemia
- Electrolyte imbalances
- Hypovolaemic shock
- Insulin resistance
- Catabolic metabolic state
- Multi-organ failure
- Bacterial infections
- Septic shock (often S. aureus and P. aeruginosa)
- Pneumonia or interstitial pneumonitis
- Necrosis of oesophagus, small intestine and colon with perforation
- The mucosal area usually shows painful erosions
- Estimation of body surface infestation:
- 1 patient's palm is approximately 1% of body surface area in children and adults
- Rule of nines: rule for measuring body surface area
- Head ≙ 9% of the body surface
- 1 arm ≙ 9% of the body surface
- Breast & Abdomen ≙ 9% & 9% (= 18%) of the body surface
- 1 leg ≙ 18% (!) of the body surface
- Genital ≙ 1% of the body surface
- SCORTEN (severity of illness score for toxic epidermal necrolysis)
- Scale designed to predict the probability of mortality
- Mortality (for SJS, SJS/TEN and TEN): approx. 30%.
- Mortality (for SJS): 10%
- Mortality (TEN): >30%
SCORTEN (severity of illness score for toxic epidermal necrolysis) according to Bastuji-Garin | ||
---|---|---|
Age | ≥ 40 years | 1 |
Existing neoplasia? | Yes | 1 |
Body surface affected | >10% | 1 |
Heart rate | ≥120/minute | 1 |
Serum urea | >10 mmol/L | 1 |
Serum glucose | >14 mmol/L | 1 |
Serum bicarbonate | >20 mmol/L | 1 |
Always:
- Discontinue or replace the triggering medication.
For mild (<< 10%) or no mucosal involvement:
- Mometasone fuorate cream / solution / ointment
- Clobetasol cream 1-2 dgl (for 1-3 days)
- Fusidic acid ointment/gauze
- Fusidic acid - betamethasone cream
- Sulfadiazine Cream
- Polyvidone-iodine wound ointment/ solution / ointment gauze
- Triclosan skin wash lotion
In case of mucous membrane involvement
- Chlorhexidine solution
- Dynexan mouth gel,
- Momethasone fuorat Lsg. 1-2 dgl.
Anal region
- Polyvidone-iodine wound ointment/ solution
- Macrogol (unflavoured (20, 100pcs), Chocolat (20, 100pcs), Junior unflavoured Plv (30, 60pcs), Liquid drinking solution Orange (500ml))
For medium and heavy shapes:
General measures
- Treatment like burns
- Necrosis should be debrided
- If > 30% of KOF Ã intensive care
- Isolation to protect against infection
- Gown
- Protective gown
- Mouthguard
- Gloves
- Decubitus prophylaxis
- Storage on metaline foil
- Sufficient fluid intake/balancing
- A patient with SJS or TEN needs 1/3 less fluid intake than burn patients
- Prophylactic antibiotics are not recommended
- Raising the room temperature
- Optimally up to 32°C to reduce calorie consumption
- Nutrition
- If possible, passaged food
- Alternatively: transnasal stomach tube
- Should be placed early
- Careful placement of the tube
- Parenteral nutrition if necessary
- Thrombosis prophylaxis
- Support stockings
- Anticoagulation
- Low molecular weight heparin e.g
- Enoxaparin sodium 20 mg (low risk of thrombosis) or 40 mg (higher risk of thrombosis)
- Unfractionated heparin
- Ophthalmological consultation, if necessary
- Gynaecological consultation
- Aim: avoidance of synechiae, stenoses
- Some authors recommend the intravaginal application of dilators to avoid stenosis and synechiae (Milex vaginal dilators). However, this must be discussed with the patient and we have no experience in this area. Consult gynaecology
- Suppression of menstruation (medication) to avoid crusts/synechiae
Systemic therapy
- Systemic glucocorticoids
- Are controversial. There are studies showing benefit as well as papers that have demonstrated increased complication rates and mortality
- In the RegiSCAR study, the overall benefit could not be demonstrated
- The EuroSCAR study showed a mortality of 18% with the administration of systemic glucocorticoids
- Overall, therapy is not recommended
- Once the decision has been made to start therapy with systemic glucocorticoids, therapy should be started as soon as possible (ideally 24-48 hours after the onset of the first symptoms)
- Systemic glucocorticoids
- Prednisolone p.o. 1.0 mg/kg/d
- Methylprednisolone p.o. 40 mg 1x tgl.
- Intravenous immunoglobulins i.v. 250-400 mg/kg bw daily for 3-5 days every 3-4 weeks
- Initial dose: 0.4-0.8 g/kg bw
- In the course: 0.2 g/kg bw every 3 to 4 weeks
- Determination of the IgG serum level always immediately before the next infusion!
- An IgG valley level of at least 5 to 6 g/l should be achieved before re-infusion
- Data are controversial
- Dosing:
- 1- 1.5 g/kg bw 1x daily i.v. for 3 days
- 2 - >4 g/kg bw 1x tgl. i.v. for 3 days
- If therapy with IVIG is decided on, the lower dosage should be chosen (↓ side effects, with approximately the same effect)
- The EuroSCAR study showed a mortality of 25% with the administration of IVIG
- Combination therapy systemic glucocorticoids and IVIG
- Multiple retrospective analyses
- Data and dosing unclear, possible benefit
- Ciclosporin p.o. 3-5 mg/kg bw daily
- Take independently of meals
- Case reports and case series
- 3- 5 mg/kg bw i.v. tgl.
- Could slow down progression
- The RegiSCAR study was able to show ↑ survival
- Etanercept s.c. 50 mg once
- Infliximab i.v. 5mg kg bw once
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