Acute and Critical Care

Original Article

Pulmonary
Incidence and risk factors associated with progression to severe pneumonia among adults with non-severe Legionella pneumonia: Jin-Young Huh, Sang-Ho Choi, Kyung-Wook Jo, Jin Won Huh, Sang-Bum Hong, Tae Sun Shim, Chae-Man Lim, Younsuck Koh; Acute Crit Care. 2022;37(4):543-549. Published online October 21, 2022; DOI: https://doi.org/10.4266/acc.2022.00521

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Background
Legionella species are important causative organisms of severe pneumonia. However, data are limited on predictors of progression to severe Legionella pneumonia (LP). Therefore, the risk factors for LP progression from non-severe to the severe form were investigated in the present study. Methods: This was a retrospective cohort study that included adult LP patients admitted to a 2,700-bed referral center between January 2005 and December 2019. Results: A total of 155 patients were identified during the study period; 58 patients (37.4%) initially presented with severe pneumonia and 97 (62.6%) patients with non-severe pneumonia. Among the 97 patients, 28 (28.9%) developed severe pneumonia during hospitalization and 69 patients (71.1%) recovered without progression to severe pneumonia. Multivariate logistic regression analysis showed platelet count ≤150,000/mm3 (odds ratio [OR], 2.923; 95% confidence interval [CI], 1.100–8.105; P=0.034) and delayed antibiotic treatment >1 day (OR, 3.092; 95% CI, 1.167–8.727; P=0.026) were significant independent factors associated with progression to severe pneumonia. Conclusions: A low platelet count and delayed antibiotic treatment were significantly associated with the progression of non-severe LP to severe LP.

Citations

Citations to this article as recorded by

Atraumatic Splenic Rupture in Legionella pneumophila Pneumonia
Elliott Worku, Dominic Adam Worku, Salim Surani
Case Reports in Infectious Diseases.2023; 2023: 1. CrossRef
Short- and long-term prognosis of patients with community-acquired Legionella or pneumococcal pneumonia diagnosed by urinary antigen testing
Leyre Serrano, Luis Alberto Ruiz, Silvia Perez-Fernandez, Pedro Pablo España, Ainhoa Gomez, Beatriz Gonzalez, Ane Uranga, Sonia Castro, Milagros Iriberri, Rafael Zalacain
International Journal of Infectious Diseases.2023; 134: 106. CrossRef
Case report: Fatal Legionella infection diagnosed via by metagenomic next-generation sequencing in a patient with chronic myeloid leukemia
Chunhong Bu, Shuai Lei, Linguang Chen, Yanqiu Xie, Guoli Zheng, Liwei Hua
Frontiers in Medicine.2023;[Epub] CrossRef

Case Report

Infection
Septic Shock due to Unusual Pathogens, Comamonas testosteroni and Acinetobacter guillouiae in an Immune Competent Patient: Hyun Jung Kim, Yunkyoung Lee, Kyunghwan Oh, Sang-Ho Choi, Heungsup Sung, Jin Won Huh; Korean J Crit Care Med. 2015;30(3):180-183. Published online August 31, 2015; DOI: https://doi.org/10.4266/kjccm.2015.30.3.180

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Abstract PDF

Comamonas testosteroni and Acinetobacter guillouiae are gram-negative bacilli of low virulence that are widely distributed in nature and normal flora. Despite their common occurrence in environments, they rarely cause infectious disease. We experienced a case of septic shock by C. testosterone and A. guillouiae, and isolated them by 16S ribosomal RNA sequencing method from the blood cultures of a previous healthy female during postoperative supportive care. This is the first case of septic shock required ventilator care and continuous renal replacement therapy due to these organisms in Korea.

Citations

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Infectious Diseases Now.2023; 53(2): 104622. CrossRef
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Journal of Food Protection.2023; 86(4): 100067. CrossRef
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Michael P. Ryan, Ludmila Sevjahova, Rachel Gorman, Sandra White
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Seminars in Dialysis.2022; 35(6): 556. CrossRef
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Journal of Infection and Public Health.2016; 9(3): 362. CrossRef

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