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Technique of Conjunctival Biopsy and Direct Immunofluorescence for Diagnosing Mucous Membrane Pemphigoid
Published on: June 17, 2025
Pemphigus vulgaris and infections: a retrospective study on 155 patients
Nafiseh Esmaili1, Hossein Mortazavi, Pedram Noormohammadpour
1Autoimmune Bullous Diseases Research Center, Tehran University of Medical Sciences, Tehran 1199663911, Iran ; Department of Dermatology, Tehran University of Medical Sciences, Tehran 1199663911, Iran.
Abstract:
Background. Autoimmune process and immunosuppressive therapy of pemphigus vulgaris would predispose the patients to infections. Aim. We aimed to study the prevalence of infection and pathogenic agents in pemphigus vulgaris patients admitted to dermatology service. Material and methods. This retrospective study was conducted on 155 pemphigus vulgaris patients (68 males, 87 females) admitted to dermatology service between 2009 and 2011. In this study, the diagnosis of pemphigus vulgaris was confirmed by light microscopic and direct immunofluorescence findings. Data were collected through a questionnaire. Results. Of 155 pemphigus vulgaris patients, 33 had infection at admission and 9 acquired nosocomial infection. In addition, 37 cases of oral candidiasis and 15 cases of localized herpes simplex were recorded. Totally, 94 cases of infection were recorded. The occurrence of infection was significantly related to the severity of disease, number of hospital admissions, and presence of diabetes mellitus. The most common pathogenic germs isolated from cultures were Staphylococcus aureus and Escherichia coli. Conclusion. Severity of pemphigus vulgaris and diabetes were directly related with tendency to infections. Staphylococcus aureus and Escherichia coli were the most common pathogenic agents. Due to limitations of retrospective study, a prospective study is recommended.
Insights
Pemphigus vulgaris patients face a high risk of infections, particularly Staphylococcus aureus and Escherichia coli. Disease severity and diabetes significantly increase infection susceptibility.
Area of Science:
- Dermatology
- Infectious Diseases
- Immunology
Background:
- Pemphigus vulgaris (PV) is an autoimmune blistering disease.
- Immunosuppressive therapies used for PV increase infection risk.
- Understanding infection prevalence in PV patients is crucial.
Purpose of the Study:
- To determine the prevalence of infections in PV patients.
- To identify common pathogenic agents causing infections in PV patients.
- To explore factors associated with infection occurrence in PV.
Main Methods:
- Retrospective study of 155 PV patients (2009-2011).
- Diagnosis confirmed by light microscopy and direct immunofluorescence.
- Data collected via questionnaires.
Main Results:
- 94 infections recorded among 155 PV patients.
- Oral candidiasis (37 cases) and herpes simplex (15 cases) were common.
- Infection risk correlated with disease severity, hospital admissions, and diabetes mellitus.
Conclusions:
- PV severity and co-existing diabetes mellitus increase infection risk.
- Staphylococcus aureus and Escherichia coli were the most frequent pathogens.
- Prospective studies are recommended to further investigate infection patterns in PV.
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