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Purpura Fulminans: a Rare but Fierce Presentation of Pneumococcal Sepsis
Adeel Nasrullah1, Anam Javed2, Usman Tariq1
1Department of Internal Medicine, Allegheny Health Network; Pittsburgh, USA.
Insights
Infectious purpura fulminans (PF), a rare DIC complication, can be fatal. Early recognition of PF, often linked to pneumococcal sepsis, is crucial for timely treatment and improved outcomes.
Area of Science:
- Hematology
- Infectious Diseases
- Dermatology
Background:
- Infectious purpura fulminans (PF) is a rare, life-threatening condition characterized by disseminated intravascular coagulopathy (DIC), leading to skin thrombosis and hemorrhagic infarction.
- PF commonly arises from sepsis due to bacteria like *Neisseria meningitidis*, *Streptococcus pneumoniae*, and *Haemophilus influenzae*, presenting with skin lesions, fever, and hypotension.
- Despite aggressive treatment, PF carries a high mortality rate of 43%.
Purpose of the Study:
- To present a case of PF secondary to DIC caused by pneumococcal sepsis in an immunocompetent patient.
- To highlight the critical importance of early recognition and prompt therapeutic intervention in managing infectious purpura fulminans.
- To contribute to the limited knowledge regarding the management of PF, exploring potential therapeutic modalities.
Main Methods:
- Case report presentation of a patient with infectious purpura fulminans.
- Review of clinical presentation, diagnostic findings, and treatment course.
- Discussion of the pathophysiology linking pneumococcal sepsis to DIC and PF.
Main Results:
- The case illustrates PF as a complication of DIC secondary to *Streptococcus pneumoniae* sepsis.
- The patient presented with characteristic ecchymotic skin lesions, fever, and hypotension, indicative of PF.
- The report emphasizes that a characteristic skin rash is a key diagnostic clue for PF.
Conclusions:
- Infectious purpura fulminans is a hematological emergency requiring immediate recognition and treatment to mitigate severe morbidity and mortality.
- Prompt initiation of therapy based on clinical suspicion, particularly a characteristic rash, is vital, as delays for diagnostic confirmation can be detrimental.
- Further research is needed to establish evidence-based management protocols, as the efficacy of therapies like hyperbaric oxygen and IVIG remains uncertain due to a lack of prospective data.
Abstract:
Infectious purpura fulminans (PF) is a rare presentation of disseminated intravascular coagulopathy (DIC) due to diffuse intravascular thrombosis and haemorrhagic infarction of the skin. PF can present in infancy/childhood or adulthood and usually presents as ecchymotic skin lesions, fever and hypotension. It is most commonly a consequence of sepsis related to Neisseria meningitidis, Streptococcus pneumoniae or Haemophilus influenzae. Despite aggressive management of sepsis with intravenous fluids, antibiotics, and conventional and nonconventional therapies, the condition still carries a mortality rate of 43%[1]. Streptococcus pneumoniae mostly presents with community-acquired pneumonia. We present a case of PF secondary to DIC related to Pneumococcal sepsis in an otherwise healthy and immunocompetent patient.
Learning Points:
Infectious purpura fulminans is a haematological emergency that demands early recognition and timely institution of therapy to prevent significant morbidity and mortality.A characteristic skin rash is a key diagnostic clue pointing to purpura fulminans, and should lead to prompt institution of therapy, as waiting for a skin biopsy result can delay the diagnosis and result in significant morbidity and mortality.Due to the lack of prospective data on management of the condition, various modalities, such as hyperbaric oxygen therapy and IVIG, still have questionable benefits. We therefore aim to expand knowledge of purpura fulminans management.
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Risk Factors
Various factors influence the likelihood of developing pneumonia. Age plays a crucial role, with infants, children under two, and individuals over 65 at increased risk due to their...