期刊
PATHOGENS
卷 12, 期 5, 页码 -出版社
MDPI
DOI: 10.3390/pathogens12050661
关键词
liver abscess; America; Klebsiella pneumoniae; cryptogenic
类别
This scoping review provides an overview of the characteristics and clinical presentations of cryptogenic Klebsiella pneumoniae liver abscess in the Americas. The majority of cases involve males with diabetes who have traveled from Southeast or East Asia. Extrahepatic involvement and bacteremia are common, with the lungs, ocular structures, and central nervous system being commonly affected. Treatment includes percutaneous drainage and the use of third generation cephalosporins, but the pooled fatality rate remains at 9%.
(1) Background: Cryptogenic Klebsiella pneumoniae liver abscesses are an invasive infection with or without extra hepatic involvement in the absence of hepatobiliary disease or abdominal malignancy. Most of the evidence has emanated from reports from Asia, and previous studies in the Americas have limited clinical characterization. (2) Methods: To understand this syndrome's characteristics on our continent, we conducted a scoping review to identify adult cases of idiopathic, community-acquired monomicrobial K. pneumoniae liver abscess in the Americas. (3) Results: We identified 144 cases spanning 1978-2022. Most cases were reported in males that had traveled or migrated from Southeast or East Asia with diabetes mellitus. Extrahepatic involvement and bacteremia were common, including seeding to the lungs, ocular structures, and central nervous system. Although limited by sample size, the most commonly reported genes were magA or rmpA. Concomitant percutaneous drainage and third generation cephalosporins (alone or in combination with other antibiotics) were frequently used, yet pooled fatality occurred in 9% of the reported cases. (4) Conclusions: The features of cryptogenic K. pneumoniae liver abscess in the Americas mirror those described in Asia, confirming its global dissemination. This condition is increasingly being reported in our continent and carries significant clinical impact due to its systemic invasiveness.
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