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Nsaids Linked to IgA-Mediated Hypersensitivity Vasculitis and Purpura Fulminans-Like Eruption.
BACKGROUND: IgA vasculitis and hypersensitivity reactions following exposure to non-steroidal anti-inflammatory drugs (NSAIDs) are very rarely associated with purpura fulminans (PF). The latter is a coagulation event characterised by decreased levels of protein C and a rapidly progressive purpuric rash, often leading to ischaemia, amputations and death.
CASE SUMMARY: A previously healthy 66-year-old man presented with a vasculitic rash and abdominal pain following exposure to naproxen (NSAID), which quickly deteriorated to purpura fulminans-like eruption and skin necrosis, mainly involving the face and hands. The presence of IgA sediments on skin biopsy and decreased levels of complement as well as protein C pointed to an immune-mediated inflammatory process. Dramatic clinical escalation with immediate risk to organs and life required an aggressive and broad-spectrum therapeutic approach in an intensive care setting. Clinical improvement and complete reconstitution of protein C were achieved following plasma exchange with fresh frozen plasma (FFP) and immunosuppression with glucocorticoids with no persistent organ damage.
CONCLUSIONS: This rare case illustrates the catastrophic cross links between NSAIDs, IgA-mediated hypersensitivity vasculitis and purpura fulminans-like syndrome. A high index of suspicion is required for the evaluation of environmental exposures such as drugs and infections in patients with vasculitis and/or purpura. A rapid and comprehensive therapeutic approach should be implemented to avoid multi-organ damage, amputations and death. Complete avoidance of the offending agent is key for future prevention of recurrence.
LEARNING POINTS: This case illustrates a rare cross link between a commonly used drug (NSAIDs) and severe, life-threatening hypersensitivity reactions (IgA vasculitis and purpura fulminans-like eruption).These events require a high index of suspicion and emphasise the importance of considering environmental exposures such as drugs in the immediate diagnosis of both conditions.In addition to long-term drug avoidance, early and aggressive interventions are required to avoid organ damage, amputations or death.
CASE SUMMARY: A previously healthy 66-year-old man presented with a vasculitic rash and abdominal pain following exposure to naproxen (NSAID), which quickly deteriorated to purpura fulminans-like eruption and skin necrosis, mainly involving the face and hands. The presence of IgA sediments on skin biopsy and decreased levels of complement as well as protein C pointed to an immune-mediated inflammatory process. Dramatic clinical escalation with immediate risk to organs and life required an aggressive and broad-spectrum therapeutic approach in an intensive care setting. Clinical improvement and complete reconstitution of protein C were achieved following plasma exchange with fresh frozen plasma (FFP) and immunosuppression with glucocorticoids with no persistent organ damage.
CONCLUSIONS: This rare case illustrates the catastrophic cross links between NSAIDs, IgA-mediated hypersensitivity vasculitis and purpura fulminans-like syndrome. A high index of suspicion is required for the evaluation of environmental exposures such as drugs and infections in patients with vasculitis and/or purpura. A rapid and comprehensive therapeutic approach should be implemented to avoid multi-organ damage, amputations and death. Complete avoidance of the offending agent is key for future prevention of recurrence.
LEARNING POINTS: This case illustrates a rare cross link between a commonly used drug (NSAIDs) and severe, life-threatening hypersensitivity reactions (IgA vasculitis and purpura fulminans-like eruption).These events require a high index of suspicion and emphasise the importance of considering environmental exposures such as drugs in the immediate diagnosis of both conditions.In addition to long-term drug avoidance, early and aggressive interventions are required to avoid organ damage, amputations or death.
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