Deep Neck Infection in Systemic Lupus Erythematosus Patients: Real-World Evidence

Area of Science:

• Rheumatology and Infectious Diseases
• Clinical Epidemiology
• Health Services Research

Background:

• Systemic lupus erythematosus (SLE) is an autoimmune disease associated with increased infection susceptibility.
• Deep neck infections (DNIs) are serious infections that can lead to severe complications.
• The association between SLE and DNI risk remains underexplored, with limited supporting evidence.

Purpose of the Study:

• To investigate the association between SLE and the risk of developing DNI.
• To analyze DNI treatment modalities and prognoses in SLE patients compared to non-SLE patients.
• To examine the impact of steroid dosage on DNI incidence within the SLE cohort.

Main Methods:

• Retrospective follow-up study utilizing data from Taiwan's National Health Insurance Research Database.
• Identification of SLE patients and age-, sex-, and socioeconomic status-matched non-SLE controls.
• Cox regression analysis to determine the hazard ratio for DNI in SLE patients and assess the influence of steroid dose.

Main Results:

• SLE patients exhibited a significantly higher cumulative incidence of DNI compared to non-SLE controls (p < 0.001).
• SLE was independently associated with a nearly fivefold increased risk of DNI (Hazard Ratio: 4.70; p < 0.001).
• High-dose steroid use (≥3 mg/day) in SLE patients significantly correlated with increased DNI incidence (2.21% vs. 0.52%; p < 0.001).

Conclusions:

• This study provides robust evidence that SLE significantly increases the risk of deep neck infections.
• High-dose corticosteroid therapy in SLE patients is a critical risk factor for DNI development.
• Findings underscore the importance of vigilant monitoring for DNI in SLE patients, particularly those on high-dose immunosuppression.