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Table. Summary of Studies
Table. Summary of Studies
1.
Auquier-Dunant A, Mockenhaupt M, Naldi L, Correia O, Schr öder W, Roujeau JC.SCAR Study Group (Severe Cutaneous Adverse Reactions).  Correlations between clinical patterns and causes of erythema multiforme majus, Stevens-Johnson syndrome, and toxic epidermal necrolysis: results of an international prospective study.  Arch Dermatol. 2002;138(8):1019-1024PubMedArticle
2.
Bastuji-Garin S, Rzany B, Stern RS, Shear NH, Naldi L, Roujeau JC. Clinical classification of cases of toxic epidermal necrolysis, Stevens-Johnson syndrome, and erythema multiforme.  Arch Dermatol. 1993;129(1):92-96PubMedArticle
3.
Rajaratnam R, Mann C, Balasubramaniam P,  et al.  Toxic epidermal necrolysis: retrospective analysis of 21 consecutive cases managed at a tertiary centre.  Clin Exp Dermatol. 2010;35(8):853-862PubMedArticle
4.
Viard I, Wehrli P, Bullani R,  et al.  Inhibition of toxic epidermal necrolysis by blockade of CD95 with human intravenous immunoglobulin.  Science. 1998;282(5388):490-493PubMedArticle
5.
Majumdar S, Mockenhaupt M, Roujeau J, Townshend A. Interventions for toxic epidermal necrolysis.  Cochrane Database Syst Rev. 2002;(4):CD001435PubMed
6.
Wolkenstein P, Latarjet J, Roujeau JC,  et al.  Randomised comparison of thalidomide versus placebo in toxic epidermal necrolysis.  Lancet. 1998;352(9140):1586-1589PubMedArticle
7.
Schneck J, Fagot J-P, Sekula P, Sassolas B, Roujeau JC, Mockenhaupt M. Effects of treatments on the mortality of Stevens-Johnson syndrome and toxic epidermal necrolysis: a retrospective study on patients included in the prospective EuroSCAR Study.  J Am Acad Dermatol. 2008;58(1):33-40PubMedArticle
8.
Al-Mutairi N, Arun J, Osama NE,  et al.  Prospective, noncomparative open study from Kuwait of the role of intravenous immunoglobulin in the treatment of toxic epidermal necrolysis.  Int J Dermatol. 2004;43(11):847-851PubMedArticle
9.
Bachot N, Revuz J, Roujeau JC. Intravenous immunoglobulin treatment for Stevens-Johnson syndrome and toxic epidermal necrolysis: a prospective noncomparative study showing no benefit on mortality or progression.  Arch Dermatol. 2003;139(1):33-36PubMedArticle
10.
Imahara SD, Holmes JH IV, Heimbach DM,  et al.  SCORTEN overestimates mortality in the setting of a standardized treatment protocol.  J Burn Care Res. 2006;27(3):270-275PubMedArticle
11.
Prins C, Kerdel FA, Padilla RS,  et al; TEN-IVIG Study Group (Toxic Epidermal Necrolysis-Intravenous Immunoglobulin).  Treatment of toxic epidermal necrolysis with high-dose intravenous immunoglobulins: multicenter retrospective analysis of 48 consecutive cases.  Arch Dermatol. 2003;139(1):26-32PubMedArticle
12.
Brown KM, Silver GM, Halerz M, Walaszek P, Sandroni A, Gamelli RL. Toxic epidermal necrolysis: does immunoglobulin make a difference?  J Burn Care Rehabil. 2004;25(1):81-88PubMedArticle
13.
Shortt R, Gomez M, Mittman N, Cartotto R. Intravenous immunoglobulin does not improve outcome in toxic epidermal necrolysis.  J Burn Care Rehabil. 2004;25(3):246-255PubMedArticle
14.
Trent JT, Kirsner RS, Romanelli P, Kerdel FA. Analysis of intravenous immunoglobulin for the treatment of toxic epidermal necrolysis using SCORTEN: the University of Miami experience.  Arch Dermatol. 2003;139(1):39-43PubMedArticle
15.
Mangla K, Rastogi S, Goyal P, Solanki RB, Rawal RC. Efficacy of low dose intravenous immunoglobulins in children with toxic epidermal necrolysis: an open uncontrolled study.  Indian J Dermatol Venereol Leprol. 2005;71(6):398-400PubMedArticle
16.
Tristani-Firouzi P, Petersen MJ, Saffle JR, Morris SE, Zone JJ. Treatment of toxic epidermal necrolysis with intravenous immunoglobulin in children.  J Am Acad Dermatol. 2002;47(4):548-552PubMedArticle
17.
Kim KJ, Lee DP, Suh HS,  et al.  Toxic epidermal necrolysis: analysis of clinical course and SCORTEN-based comparison of mortality rate and treatment modalities in Korean patients.  Acta Derm Venereol. 2005;85(6):497-502PubMed
18.
Faye O, Roujeau JC. Treatment of epidermal necrolysis with high-dose intravenous immunoglobulins (IV Ig): clinical experience to date.  Drugs. 2005;65(15):2085-2090PubMedArticle
Evidence-Based Dermatology: Critically Appraised Topic
Dec 2011

In a Patient With Toxic Epidermal Necrolysis, Does Intravenous Immunoglobulin Improve Survival Compared With Supportive Care?

Arch Dermatol. 2011;147(12):1437-1440. doi:10.1001/archdermatol.2011.300

Clinical Question: A 67-year-old Chinese man presented with pain and widespread skin erythema and detachment. A clinical diagnosis of toxic epidermal necrolysis (TEN) was made, which was supported by skin biopsy findings. The TEN was thought to be due to recent initiation of lamotrigine for mild epilepsy, and the drug was stopped immediately. The severity of TEN, measured by the Severity-of-Illness Score for Toxic Epidermal Necrolysis (SCORTEN) scale, was 3 on admission owing to renal impairment, indicating a mortality risk of 35%. The patient was transferred to the burns unit for close monitoring of temperature, fluid balance, and appropriate dressings for his affected skin. A debate ensued among the dermatology, plastic surgery, and intensive care teams responsible for his care about whether intravenous immunoglobulin (IVIg) should be added to his treatment because improvement was slow with conservative treatment.

Background

Toxic epidermal necrolysis is a rare, life-threatening mucocutaneous disease that is caused by drugs in over 60% to 70% of cases.1 By definition, there is epidermal detachment of over 30% of total body surface area (TBSA) as a consequence of keratinocyte apoptosis.2 Identification and early withdrawal of the causative agent is crucial, and symptomatic and supportive care are the mainstays of treatment. Many treatments have been postulated as having possible benefit in treating this condition, but as yet no specific therapy has reached widespread acceptance through the principles of evidence-based medicine. Recent literature suggests that the use of IVIg for TEN has become accepted as standard practice in some centers.3 The theoretical basis for the use of IVIg in TEN is that IVIg blocks Fas receptors on keratinocytes in perilesional skin, thereby preventing Fas ligand from binding and initiating keratinocyte apoptosis.4

Given the differences in opinion by team members on whether IVIg should be added to best supportive care and withdrawal, we sought to review the evidence of the possible benefits and harms of IVIg in TEN, especially to consider whether our local protocol for TEN care should now include routine IVIg use.

Literature Search

We searched PubMed and the Cochrane Library using the terms toxic epidermal necrolysis and TEN and intravenous immunoglobulin and IVIg from inception until November 25, 2010. Given the vast number of case reports in the field, we restricted our article selection to include only original articles with a clinical and histological diagnosis of TEN in which IVIg had been used. We sought to primarily include systematic reviews and randomized controlled trials (RCTs). In the absence of clinical trial evidence, we agreed to scrutinize case series of more than 5 consecutive cases that included some information (eg, SCORTEN) that allowed some indirect comparison to be made with other treatments. We excluded case series or case reports of Stevens-Johnson syndrome (SJS), and those reports in which combination treatments were used.

Appraisal of the Topic

Of the 145 articles found in the literature search, only 11 met our prespecified criteria. We found only 1 systematic review,5 published in 2001, which includes the only RCT.6 The 1 RCT compared thalidomide vs supportive care in TEN. The trial had to be stopped early owing to increased mortality in the thalidomide arm. The use of thalidomide was postulated on a theoretical basis owing to its action on tumor necrosis factor.

One controlled cohort study, which included data on 122 patients from the EuroSCAR study,7 found an increased risk of death (odds ratios of 1.4 for patients from France and 1.5 for patients from Germany) for the use of IVIg compared with supportive care. The main study drawback is that SJS and SJS/TEN overlap is included in the figures alongside TEN, and therefore it is not possible to assess for TEN alone. One prospective case series from Kuwait8 documented 12 consecutive cases of TEN treated with IVIg. No deaths were reported, and 1 patient developed pneumonia.

A further prospective case series from France9 assessed the use of IVIg in patients with SJS, SJS/TEN overlap, and TEN. From the data provided in the article it is possible to extrapolate that 8 patients had TEN by definition of TBSA detachment greater than 30% at admission. The mean SCORTEN for these patients was 2.6, which would equate to a predicted mortality rate of 26%; however, the actual mortality rate was 25% (2 patients). Three patients of the total cohort of 34 had ocular sequelae at discharge, but no other complications were noted.

Details of 8 retrospective case series containing more than 5 patients are shown in the Table. Imahara et al10 reviewed 109 patients treated for TEN from 1987 to 2004. The patients were treated according to a standardized clinical pathway, which involved removal of sloughed epidermis and dermal protection with porcine xenograft. Intravenous immunoglobulin use for TEN was introduced in 1999, and the cohort of patients treated after its initiation was compared with the cohorts treated prior to 1999. The SCORTEN was similar in all groups, but the mortality rate was marginally higher in the IVIg-treated group (21.9% vs 19.1%). No other complications were documented. Forty-six patients had received corticosteroids prior to admission. It is not clear from the information given in the article if all of the cohort of patients included in the study from 1999 onward received IVIg, because the authors state that “IVIg was considered for patients with progressive disease after its routine institution in January 1999. ”10(p271) This may affect the interpretation of the data presented.

Prins et al11 reviewed the cases of 48 patients treated with IVIg with no comparison. Only 38 patients had TBSA detachment of 30% or greater, consistent with TEN. The mortality rate for patients with TEN was 16% (6 patients), with no other complications found. Twelve patients had received intravenous corticosteroids prior to inclusion into the study.

Brown et al12 looked at 24 patients treated with IVIg and compared them with 21 historical TEN controls treated conservatively. SCORTEN was equivalent in both groups. The mortality rate was 41.7% in the IVIg-treated group and 28.6% in the control group. The number of complications experienced per patient was significantly higher in the IVIg-treated group (2.8 vs 1.7).

Rajaratnam et al3 published a case series of 21 patients treated with IVIg compared with 7 historical controls who had been treated with cyclosporine or cyclophosphamide. The mortality rate in the IVIg-treated group was 21% but increased to 71% in the control group. Complications included sepsis, disseminated intravascular coagulation, renal failure, respiratory failure, and thromboembolic disease. Higher rates of these complications were seen in the IVIg-treated group.

Shortt et al13 included 16 patients treated with IVIg and 16 historical controls (supportive care). All patients were treated with hydrotherapy and epidermal debridement, which was performed under general anesthesia or opioid and benzodiazepine sedation. Results showed a mortality rate of 25% in the IVIg-treated group compared with a mortality rate of 38% in the control group (statistically not significant owing to the small sample size). Twelve control patients and 14 patients treated with IVIg required intubation. Eleven control patients developed sepsis compared with 13 IVIg-treated patients.

Trent et al14 included 16 consecutive patients without a control group. Twelve patients had TBSA detachment of 30% or more. SCORTEN predicted a mortality rate of 42%, but the actual mortality rate was only 8% (1 patient). One patient developed respiratory failure and required tracheostomy. Duplicate reporting of patients from this study occurred in the Prins et al study10 discussed herein.

Mangla et al15 reviewed the cases of 10 children with TEN treated with IVIg. No control group was used. No mortality or complications were reported. Tristani-Firouzi et al16 reviewed 8 children who were treated with IVIg compared with 3 historical controls who were treated with plasmaphoresis and surgical debridement. No mortality was reported across either group; however, 4 patients required mechanical ventilation, and 4 required treatment for sepsis in the IVIg arm. One patient in the IVIg-treated group received intravenous corticosteroid prior to admission.

A further study was identified (Kim et al17) that reported a retrospective review of TEN treatment modalities. The cases of 38 patients were reviewed, 14 of whom had received high-dose IVIg treatment. The SCORTEN-predicted mortality rate in the TEN cohort was 16.8% (2.3 patients), but the actual mortality rate was lower at 7.1% (1 patient). The authors state that adverse effects of IVIg were seen in 5 patients (headache, myalgia, nausea, transient neutropenia, and Coombs positive hemolytic anemia), all of which resolved after cessation of IVIg treatment. This study has not been included in our summary of studies because it compares high-dose IVIg and corticosteroid therapy in TEN.

Limitations of the Critically Appraised Topic

To our knowledge, there is no high-quality evidence (ie, RCT data) on the use of IVIg in TEN. The data from the next best level of evidence (ie, the well-defined EuroSCAR7 cohort study) do not suggest a reduction in mortality from IVIg use, but suggest some possible evidence of harm, although the data are limited because they include SJS and SJS/TEN overlap. The remaining case series all suffer from a high risk of selection, performance, information, attrition, and publication bias, and are almost impossible to interpret. Few of the case series described comparator treatments. Some used historical controls, which are inappropriate given the advances in intensive supportive care in acute medicine that have occurred over the past 20 years. Furthermore, many control patients were treated concurrently with other active management (cyclosporine, cyclophosphamide, surgical debridement, and plasmaphoresis), making comparison impossible. Doses of IVIg varied across the studies, as did time of initiation. Similarly, the definition of TEN by TBSA affected with epidermal detachment varied across the studies reviewed, which also makes comparisons between studies challenging. Our stated definition was “epidermal detachment of over 30% of TBSA, ” but we have included studies in which there is some ambiguity regarding the TBSA involved and whether that involvement is all epidermal detachment or in some cases partly erythema. Not all studies recorded SCORTEN for all patients, thus not allowing assessment of severity to be made. Some patients had received intravenous corticosteroids prior to admission, and the specific outcome for these patients were not reported separately.

The complications reported in the TEN groups were mainly infection and respiratory failure: these could be complications from TEN or IVIg. A clinical RCT of IVIg vs best conservative care is needed, and any groups or individuals interested in participating in such a study are asked to contact the authors.

Clinical Bottom Line

The evidence presented herein was discussed in a multidisciplinary setting that included the dermatology, plastic surgery, and ophthalmology departments; the pharmacy; the burns unit staff; and the intensive care unit. The majority decision was that on the basis of only high risk of bias studies being available, with potential confounding variables, as well as the possibility of IVIg causing harm, we could not confidently assert that IVIg conveys added benefit over conservative management alone in patients with TEN. Like Faye and Roujeau,18 we will not be including IVIg for the treatment of TEN in our local protocol unless better evidence becomes available.

What Happened to Our Patient

Our patient remained an inpatient on the burns unit for 3 weeks. He did not receive IVIg and was treated conservatively as per our departmental protocol. He experienced transient renal impairment, which has resolved. He made a full recovery and experienced no other sequelae of TEN. He has full reepithelization with no scarring and remains well.

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Article Information
Department of Dermatology, Queens Medical Centre, Nottingham University Hospitals Trust, Nottingham, England

Correspondence: Catriona Isobel Wootton, MBChB, MA(Hons) , Department of Dermatology, Queens Medical Centre, Nottingham NG7 2UH, England (ciwootton@aol.com).

Accepted for Publication: August 10, 2011.

Author Contributions: All authors had full access to all of the data in the study and take responsibility for the integrity of the data and the accuracy of the data analysis. Study concept and design: Wootton and Patel. Acquisition of data: Wootton, Patel, and Williams. Analysis and interpretation of data: Wootton, Patel, and Williams. Drafting of the manuscript: Wootton, Patel, and Williams. Critical revision of the manuscript for important intellectual content: Wootton, Patel, and Williams. Statistical analysis: Wootton and Patel. Administrative, technical, and material support: Wootton, Patel, and Williams. Study supervision: Williams.

Financial Disclosure: None reported.

References
1.
Auquier-Dunant A, Mockenhaupt M, Naldi L, Correia O, Schr öder W, Roujeau JC.SCAR Study Group (Severe Cutaneous Adverse Reactions).  Correlations between clinical patterns and causes of erythema multiforme majus, Stevens-Johnson syndrome, and toxic epidermal necrolysis: results of an international prospective study.  Arch Dermatol. 2002;138(8):1019-1024PubMedArticle
2.
Bastuji-Garin S, Rzany B, Stern RS, Shear NH, Naldi L, Roujeau JC. Clinical classification of cases of toxic epidermal necrolysis, Stevens-Johnson syndrome, and erythema multiforme.  Arch Dermatol. 1993;129(1):92-96PubMedArticle
3.
Rajaratnam R, Mann C, Balasubramaniam P,  et al.  Toxic epidermal necrolysis: retrospective analysis of 21 consecutive cases managed at a tertiary centre.  Clin Exp Dermatol. 2010;35(8):853-862PubMedArticle
4.
Viard I, Wehrli P, Bullani R,  et al.  Inhibition of toxic epidermal necrolysis by blockade of CD95 with human intravenous immunoglobulin.  Science. 1998;282(5388):490-493PubMedArticle
5.
Majumdar S, Mockenhaupt M, Roujeau J, Townshend A. Interventions for toxic epidermal necrolysis.  Cochrane Database Syst Rev. 2002;(4):CD001435PubMed
6.
Wolkenstein P, Latarjet J, Roujeau JC,  et al.  Randomised comparison of thalidomide versus placebo in toxic epidermal necrolysis.  Lancet. 1998;352(9140):1586-1589PubMedArticle
7.
Schneck J, Fagot J-P, Sekula P, Sassolas B, Roujeau JC, Mockenhaupt M. Effects of treatments on the mortality of Stevens-Johnson syndrome and toxic epidermal necrolysis: a retrospective study on patients included in the prospective EuroSCAR Study.  J Am Acad Dermatol. 2008;58(1):33-40PubMedArticle
8.
Al-Mutairi N, Arun J, Osama NE,  et al.  Prospective, noncomparative open study from Kuwait of the role of intravenous immunoglobulin in the treatment of toxic epidermal necrolysis.  Int J Dermatol. 2004;43(11):847-851PubMedArticle
9.
Bachot N, Revuz J, Roujeau JC. Intravenous immunoglobulin treatment for Stevens-Johnson syndrome and toxic epidermal necrolysis: a prospective noncomparative study showing no benefit on mortality or progression.  Arch Dermatol. 2003;139(1):33-36PubMedArticle
10.
Imahara SD, Holmes JH IV, Heimbach DM,  et al.  SCORTEN overestimates mortality in the setting of a standardized treatment protocol.  J Burn Care Res. 2006;27(3):270-275PubMedArticle
11.
Prins C, Kerdel FA, Padilla RS,  et al; TEN-IVIG Study Group (Toxic Epidermal Necrolysis-Intravenous Immunoglobulin).  Treatment of toxic epidermal necrolysis with high-dose intravenous immunoglobulins: multicenter retrospective analysis of 48 consecutive cases.  Arch Dermatol. 2003;139(1):26-32PubMedArticle
12.
Brown KM, Silver GM, Halerz M, Walaszek P, Sandroni A, Gamelli RL. Toxic epidermal necrolysis: does immunoglobulin make a difference?  J Burn Care Rehabil. 2004;25(1):81-88PubMedArticle
13.
Shortt R, Gomez M, Mittman N, Cartotto R. Intravenous immunoglobulin does not improve outcome in toxic epidermal necrolysis.  J Burn Care Rehabil. 2004;25(3):246-255PubMedArticle
14.
Trent JT, Kirsner RS, Romanelli P, Kerdel FA. Analysis of intravenous immunoglobulin for the treatment of toxic epidermal necrolysis using SCORTEN: the University of Miami experience.  Arch Dermatol. 2003;139(1):39-43PubMedArticle
15.
Mangla K, Rastogi S, Goyal P, Solanki RB, Rawal RC. Efficacy of low dose intravenous immunoglobulins in children with toxic epidermal necrolysis: an open uncontrolled study.  Indian J Dermatol Venereol Leprol. 2005;71(6):398-400PubMedArticle
16.
Tristani-Firouzi P, Petersen MJ, Saffle JR, Morris SE, Zone JJ. Treatment of toxic epidermal necrolysis with intravenous immunoglobulin in children.  J Am Acad Dermatol. 2002;47(4):548-552PubMedArticle
17.
Kim KJ, Lee DP, Suh HS,  et al.  Toxic epidermal necrolysis: analysis of clinical course and SCORTEN-based comparison of mortality rate and treatment modalities in Korean patients.  Acta Derm Venereol. 2005;85(6):497-502PubMed
18.
Faye O, Roujeau JC. Treatment of epidermal necrolysis with high-dose intravenous immunoglobulins (IV Ig): clinical experience to date.  Drugs. 2005;65(15):2085-2090PubMedArticle
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