The Laryngoscope · 2025
Pathogens and Prognosis of Deep Neck Infection in Patients With Liver Cirrhosis.
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Lu Ang, Tsai Yao-Te, Tsai Ming-Shao, Hsu Cheng-Ming, Yang Yao-Hsu, Liu Chia-Yen, Chang Geng-He
Аннотация
OBJECTIVE: This study aims to investigate the differences in pathogenic bacterial spectra between patients with deep neck infection (DNI) with and without liver cirrhosis (LC). The goal is to identify specific pathogens prevalent in LC-DNI to guide the selection of empiric antibiotics, improving treatment outcomes and prognosis.
STUDY DESIGN: This is a retrospective study.
METHODS: The Chang Gung Research Database (CGRD) is a deidentified medical database encompassing seven hospitals within Taiwan's largest medical system. We analyzed data from 2004 to 2018 on DNI patients hospitalized with or without LC, categorizing them into these two groups. This study primarily focused on comparing the bacterial culture results of these groups, alongside an analysis of their treatment modalities (medication alone or surgery) and prognostic outcomes.
RESULTS: From a total of 11,455 DNI patients identified in the CGRD, 76 LC-DNI patients and 11,178 non-LC-DNI patients met the inclusion criteria after exclusions. The LC group had significantly higher rates of surgical debridement (34.2% vs. 19.4%, p = 0.002), ICU admission (22.4% vs. 10.7%, p = 0.004), and mediastinal complications (7.9% vs. 2.1%, p = 0.005). Although the overall mortality rates were not significantly different between the two groups (6.6% vs. 4.6%, p = 0.401), the mediastinitis-related mortality rate was significantly higher in the LC-DNI group (2.6% vs. 0.2%, p = 0.015). Bacterial culture analysis revealed that LC-DNI patients predominantly presented with Klebsiella pneumoniae (KP) as the primary facultative anaerobic pathogen, whereas non-LC-DNI patients were most infected with Viridans streptococcus (VS). For anaerobic bacteria, both groups consistently cultured Peptostreptococcus micros and Prevotella intermedia as the predominant species.
CONCLUSIONS: LC-DNI patients are predominantly infected with KP, a Gram-negative bacillus, unlike the Gram-positive cocci, VS, in non-LC-DNI. Anaerobic pathogens were similar in both groups. Empiric antibiotics for LC-DNI should target KP and anaerobes to improve outcomes.
LEVEL OF EVIDENCE: 3 Laryngoscope, 135:2299-2305, 2025.
STUDY DESIGN: This is a retrospective study.
METHODS: The Chang Gung Research Database (CGRD) is a deidentified medical database encompassing seven hospitals within Taiwan's largest medical system. We analyzed data from 2004 to 2018 on DNI patients hospitalized with or without LC, categorizing them into these two groups. This study primarily focused on comparing the bacterial culture results of these groups, alongside an analysis of their treatment modalities (medication alone or surgery) and prognostic outcomes.
RESULTS: From a total of 11,455 DNI patients identified in the CGRD, 76 LC-DNI patients and 11,178 non-LC-DNI patients met the inclusion criteria after exclusions. The LC group had significantly higher rates of surgical debridement (34.2% vs. 19.4%, p = 0.002), ICU admission (22.4% vs. 10.7%, p = 0.004), and mediastinal complications (7.9% vs. 2.1%, p = 0.005). Although the overall mortality rates were not significantly different between the two groups (6.6% vs. 4.6%, p = 0.401), the mediastinitis-related mortality rate was significantly higher in the LC-DNI group (2.6% vs. 0.2%, p = 0.015). Bacterial culture analysis revealed that LC-DNI patients predominantly presented with Klebsiella pneumoniae (KP) as the primary facultative anaerobic pathogen, whereas non-LC-DNI patients were most infected with Viridans streptococcus (VS). For anaerobic bacteria, both groups consistently cultured Peptostreptococcus micros and Prevotella intermedia as the predominant species.
CONCLUSIONS: LC-DNI patients are predominantly infected with KP, a Gram-negative bacillus, unlike the Gram-positive cocci, VS, in non-LC-DNI. Anaerobic pathogens were similar in both groups. Empiric antibiotics for LC-DNI should target KP and anaerobes to improve outcomes.
LEVEL OF EVIDENCE: 3 Laryngoscope, 135:2299-2305, 2025.