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Non-typhoidal Salmonella Infections: Insights From a Case With Cardiac and Bone Involvement and Multisystem
Ana Santos E Silva1, Filipe Dias1, Margarida Santos1
1Department of Internal Medicine, Unidade Local de Saúde do Litoral Alentejano, Santiago do Cacém, PRT.
Abstract:
Non-typhoidal Salmonella is commonly associated with diarrhea and is generally considered a mild illness. However, in vulnerable individuals, the infection can progress to more severe conditions, including bacteremia and multisystem involvement. Invasive Salmonella disease presents a significant challenge for clinicians, not only because of its clinical severity but also due to its rarity and the lack of established guidelines. This case report discusses a 61-year-old woman with multiple comorbidities who developed a complex clinical condition, progressing to endocarditis with septic embolization. The diagnostic evaluation uncovered a renal abscess, spondylodiscitis, and suspected valvular vegetations linked to systemic embolization.
Insights
Non-typhoidal Salmonella infections can become severe in vulnerable patients, leading to invasive disease. This case highlights endocarditis and systemic embolization as rare but serious complications.
Area of Science:
- Infectious Diseases
- Cardiology
- Internal Medicine
Background:
- Non-typhoidal Salmonella (NTS) typically causes mild diarrhea but can lead to severe invasive disease in immunocompromised or vulnerable populations.
- Invasive NTS disease is challenging due to its rarity, clinical severity, and lack of established treatment guidelines.
- Vulnerable individuals may experience severe outcomes like bacteremia and multisystem involvement.
Observation:
- A 61-year-old woman with multiple comorbidities presented with a complex clinical picture.
- The patient developed infective endocarditis with subsequent septic embolization.
- Diagnostic workup revealed a renal abscess and spondylodiscitis.
Findings:
- The patient's condition progressed to endocarditis with septic embolization, a rare complication of NTS infection.
- Systemic embolization was linked to suspected valvular vegetations.
- The diagnostic evaluation identified a renal abscess and spondylodiscitis, indicating widespread infection.
Implications:
- This case underscores the potential for severe, invasive non-typhoidal Salmonella infections, even in non-endemic settings.
- Clinicians should consider invasive NTS disease in vulnerable patients presenting with severe symptoms and multiple organ involvement.
- Further research is needed to establish clear guidelines for managing invasive NTS infections, particularly complex cases involving endocarditis and systemic embolization.
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