Risk Factors, Clinical Characteristics, and Antibiotic Susceptibility Patterns of <i>Streptococcal</i> Keratitis: An 18-Year Retrospective Study from a Tertiary Hospital in China

<b>Purpose:</b> Our aim was to investigate risk factors, clinical characteristics, and antibiotic susceptibility patterns of cornea-isolated <i>Streptococcus</i> species collected at a tertiary hospital in China over 18 years. <b>Methods:</b> This retrospective st...

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Main Authors: Zhen Cheng, Qingquan Shi, Bo Peng, Zijun Zhang, Zhenyu Wei, Zhiqun Wang, Yang Zhang, Kexin Chen, Xizhan Xu, Xinxin Lu, Qingfeng Liang
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Language:English
Published: MDPI AG 2024-12-01
Series:Antibiotics
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Online Access:https://www.mdpi.com/2079-6382/13/12/1190
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author Zhen Cheng
Qingquan Shi
Bo Peng
Zijun Zhang
Zhenyu Wei
Zhiqun Wang
Yang Zhang
Kexin Chen
Xizhan Xu
Xinxin Lu
Qingfeng Liang
author_facet Zhen Cheng
Qingquan Shi
Bo Peng
Zijun Zhang
Zhenyu Wei
Zhiqun Wang
Yang Zhang
Kexin Chen
Xizhan Xu
Xinxin Lu
Qingfeng Liang
author_sort Zhen Cheng
collection DOAJ
description <b>Purpose:</b> Our aim was to investigate risk factors, clinical characteristics, and antibiotic susceptibility patterns of cornea-isolated <i>Streptococcus</i> species collected at a tertiary hospital in China over 18 years. <b>Methods:</b> This retrospective study reviewed data from 350 patients diagnosed with <i>Streptococcal</i> keratitis at Beijing Tongren Hospital between January 2006 and December 2023, including demographics, risk factors, clinical signs, in vivo confocal microscopy (IVCM) imaging, and antibiotic susceptibility testing. <b>Results:</b> The predominant type was <i>Streptococcus pneumoniae</i> (n = 108, 29.8%), followed by <i>Streptococcus mitis</i> (n = 90, 24.9%) and <i>Streptococcus oralis</i> (n = 85, 23.5%). Main risk factors included previous ocular surface disease (24.6%), ocular surgery (21.4%), and trauma (16.3%). Significant differences in clinical characteristics were observed among <i>S. pneumoniae</i>, <i>S. oralis</i>, and <i>S. mitis</i> regarding infiltration location (<i>p</i> = 0.038) and size (<i>p</i> = 0.037), as well as hypopyon presence (<i>p</i> = 0.006). IVCM revealed deeper inflammatory cell distribution and structural disruption as the disease progressed. Resistance rates of aminoglycosides, β-lactams, and fluoroquinolones have increased, with significant differences among species for amikacin (<i>p</i> = 0.010), gentamicin (<i>p</i> = 0.007), and others. Poor outcomes correlated with disease duration over one month, central corneal ulcers, dense infiltrations, hypopyon, and scar tissue presence on IVCM. <b>Conclusions:</b><i>Streptococcal</i> keratitis is a complex ocular infection with multiple risk factors. <i>S. pneumoniae</i>, <i>S. mitis</i>, and <i>S. oralis</i> are the primary causative agents, exhibiting varying clinical features and antibiotic resistance patterns. Key factors associated with poor outcomes include long disease duration, central corneal ulcers, and severe infiltration.
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series Antibiotics
spelling doaj-art-fda609a758434b70bc3bebc2049306722024-12-27T14:06:19ZengMDPI AGAntibiotics2079-63822024-12-011312119010.3390/antibiotics13121190Risk Factors, Clinical Characteristics, and Antibiotic Susceptibility Patterns of <i>Streptococcal</i> Keratitis: An 18-Year Retrospective Study from a Tertiary Hospital in ChinaZhen Cheng0Qingquan Shi1Bo Peng2Zijun Zhang3Zhenyu Wei4Zhiqun Wang5Yang Zhang6Kexin Chen7Xizhan Xu8Xinxin Lu9Qingfeng Liang10Beijing Institute of Ophthalmology, Beijing Tongren Eye Center, Beijing Tongren Hospital, Capital Medical University, Beijing 100005, ChinaBeijing Institute of Ophthalmology, Beijing Tongren Eye Center, Beijing Tongren Hospital, Capital Medical University, Beijing 100005, ChinaBeijing Institute of Ophthalmology, Beijing Tongren Eye Center, Beijing Tongren Hospital, Capital Medical University, Beijing 100005, ChinaBeijing Institute of Ophthalmology, Beijing Tongren Eye Center, Beijing Tongren Hospital, Capital Medical University, Beijing 100005, ChinaBeijing Institute of Ophthalmology, Beijing Tongren Eye Center, Beijing Tongren Hospital, Capital Medical University, Beijing 100005, ChinaBeijing Institute of Ophthalmology, Beijing Tongren Eye Center, Beijing Tongren Hospital, Capital Medical University, Beijing 100005, ChinaBeijing Institute of Ophthalmology, Beijing Tongren Eye Center, Beijing Tongren Hospital, Capital Medical University, Beijing 100005, ChinaBeijing Institute of Ophthalmology, Beijing Tongren Eye Center, Beijing Tongren Hospital, Capital Medical University, Beijing 100005, ChinaBeijing Institute of Ophthalmology, Beijing Tongren Eye Center, Beijing Tongren Hospital, Capital Medical University, Beijing 100005, ChinaBeijing Institute of Ophthalmology, Beijing Tongren Eye Center, Beijing Tongren Hospital, Capital Medical University, Beijing 100005, ChinaBeijing Institute of Ophthalmology, Beijing Tongren Eye Center, Beijing Tongren Hospital, Capital Medical University, Beijing 100005, China<b>Purpose:</b> Our aim was to investigate risk factors, clinical characteristics, and antibiotic susceptibility patterns of cornea-isolated <i>Streptococcus</i> species collected at a tertiary hospital in China over 18 years. <b>Methods:</b> This retrospective study reviewed data from 350 patients diagnosed with <i>Streptococcal</i> keratitis at Beijing Tongren Hospital between January 2006 and December 2023, including demographics, risk factors, clinical signs, in vivo confocal microscopy (IVCM) imaging, and antibiotic susceptibility testing. <b>Results:</b> The predominant type was <i>Streptococcus pneumoniae</i> (n = 108, 29.8%), followed by <i>Streptococcus mitis</i> (n = 90, 24.9%) and <i>Streptococcus oralis</i> (n = 85, 23.5%). Main risk factors included previous ocular surface disease (24.6%), ocular surgery (21.4%), and trauma (16.3%). Significant differences in clinical characteristics were observed among <i>S. pneumoniae</i>, <i>S. oralis</i>, and <i>S. mitis</i> regarding infiltration location (<i>p</i> = 0.038) and size (<i>p</i> = 0.037), as well as hypopyon presence (<i>p</i> = 0.006). IVCM revealed deeper inflammatory cell distribution and structural disruption as the disease progressed. Resistance rates of aminoglycosides, β-lactams, and fluoroquinolones have increased, with significant differences among species for amikacin (<i>p</i> = 0.010), gentamicin (<i>p</i> = 0.007), and others. Poor outcomes correlated with disease duration over one month, central corneal ulcers, dense infiltrations, hypopyon, and scar tissue presence on IVCM. <b>Conclusions:</b><i>Streptococcal</i> keratitis is a complex ocular infection with multiple risk factors. <i>S. pneumoniae</i>, <i>S. mitis</i>, and <i>S. oralis</i> are the primary causative agents, exhibiting varying clinical features and antibiotic resistance patterns. Key factors associated with poor outcomes include long disease duration, central corneal ulcers, and severe infiltration.https://www.mdpi.com/2079-6382/13/12/1190<i>Streptococcal</i> keratitisbacterial keratitiseye infectionantibiotic resistance
spellingShingle Zhen Cheng
Qingquan Shi
Bo Peng
Zijun Zhang
Zhenyu Wei
Zhiqun Wang
Yang Zhang
Kexin Chen
Xizhan Xu
Xinxin Lu
Qingfeng Liang
Risk Factors, Clinical Characteristics, and Antibiotic Susceptibility Patterns of <i>Streptococcal</i> Keratitis: An 18-Year Retrospective Study from a Tertiary Hospital in China
Antibiotics
<i>Streptococcal</i> keratitis
bacterial keratitis
eye infection
antibiotic resistance
title Risk Factors, Clinical Characteristics, and Antibiotic Susceptibility Patterns of <i>Streptococcal</i> Keratitis: An 18-Year Retrospective Study from a Tertiary Hospital in China
title_full Risk Factors, Clinical Characteristics, and Antibiotic Susceptibility Patterns of <i>Streptococcal</i> Keratitis: An 18-Year Retrospective Study from a Tertiary Hospital in China
title_fullStr Risk Factors, Clinical Characteristics, and Antibiotic Susceptibility Patterns of <i>Streptococcal</i> Keratitis: An 18-Year Retrospective Study from a Tertiary Hospital in China
title_full_unstemmed Risk Factors, Clinical Characteristics, and Antibiotic Susceptibility Patterns of <i>Streptococcal</i> Keratitis: An 18-Year Retrospective Study from a Tertiary Hospital in China
title_short Risk Factors, Clinical Characteristics, and Antibiotic Susceptibility Patterns of <i>Streptococcal</i> Keratitis: An 18-Year Retrospective Study from a Tertiary Hospital in China
title_sort risk factors clinical characteristics and antibiotic susceptibility patterns of i streptococcal i keratitis an 18 year retrospective study from a tertiary hospital in china
topic <i>Streptococcal</i> keratitis
bacterial keratitis
eye infection
antibiotic resistance
url https://www.mdpi.com/2079-6382/13/12/1190
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