Objective To identify the novel species ‘Mycobacterium fukienense＇ sp. nov of Mycobacterium chelonoe/abscessus complex from tuberculosis patients in Fujian Province, China. Methods Five of 27 clinical Mycobucterium ...Objective To identify the novel species ‘Mycobacterium fukienense＇ sp. nov of Mycobacterium chelonoe/abscessus complex from tuberculosis patients in Fujian Province, China. Methods Five of 27 clinical Mycobucterium isolates （CIs） were previously identified as M. chelonoe/obscessus complex by sequencing the hsp65, rpoB, 165-235 rRNA internal transcribed spacer region （its）, recA and sodA house-keeping genes commonly used to describe the molecular characteristics of Mycobocterium. Clinical Mycobecterium isolates were classified according to the gene sequence using a clustering analysis program. Sequence similarity within clusters and diversity between clusters were analyzed. Results The 5 isolates were identified with distinct sequences exhibiting 99.8% homology in the hsp65 gene. However, a complete lack of homology was observed among the sequences of the rpoB, 165-235 rRNA internal tronscribed spacer region （its）, sodA, and recA genes as compared with the M. obscessus. Furthermore, no match for rpoB, sodA, and recA genes was identified among the published sequences. Conclusion The novel species, Mycobacterium fukienense, is identified from tuberculosis patients in Fujian Province, China, which does not belong to any existing subspecies of M. cheloneo/abscessus complex.展开更多
Objective To gain greater insight into the prevalence drug resistant profiles of M. abscessus from a general hospital in Beijing, China. Methods Partial gene sequencing of 16 S, hsp65, and rpo B were used to distingui...Objective To gain greater insight into the prevalence drug resistant profiles of M. abscessus from a general hospital in Beijing, China. Methods Partial gene sequencing of 16 S, hsp65, and rpo B were used to distinguish the species of NTM isolates. All strains identified as M. abscessus were further enrolled in the drug susceptibility testing by using broth microdilution method. Results We found that M. avium complex was the most frequent NTM organism, accounting for 54.1%（33/61） of all isolates. Behind MAC, the second most common organisms were M. abscessus（22 out of 61, 36.1%）. Average rates of resistance were 4.5% for AMK, 9.1% for LZD, and 13.6% for CLA, respectively. In contrast, resistance to LEV（17/22, 77.3%）, IMI（9/22, 40.9%）, and SMX（10/22, 45.5%） was noted in more than 40% of M. abscessus isolates. DNA sequencing revealed that all the CLA-resistant isolates harbored nucleotide substitutions in position 2058（1/3, 33.3%） or 2059（2/3, 66.7%） of 23 S r RNA. Conclusion In conclusion, our data demonstrated that M. intracellulare and M. abscessus were the most common NTM species in the general hospital of Beijing. CLA, AMK, LZD showed promising activity, where as LEV, IMI, and SMX exhibited poor activity against M. abscessus in vitro.展开更多
Objective To determine the susceptibilities of M. tuberculosis H37Ra and M. chelonei subsp. absecessus to several frequently-used disinfectants and to evaluate the practicability of surrogating M. tuberculosis by the ...Objective To determine the susceptibilities of M. tuberculosis H37Ra and M. chelonei subsp. absecessus to several frequently-used disinfectants and to evaluate the practicability of surrogating M. tuberculosis by the latter. Methods A suspension quantitative bactericidal test was set up in accordance with Chinese Technique Standard for Disinfection to evaluate the susceptibility of each mycobacteria strain to each selected disinfectant. Killing log value was used as criterion in comparing the susceptibility to disinfectants between the two strains. Results M. chelonei subsp. abscessus was more resistant to chlorine disinfectant than M. tuberculosis while the two strains were similarly resistant to iodophor disinfectant, peracetic acid, alcohol and glutaraldehyde disinfectant. Conclusion M. chelonei subsp. abscessus has the potential to surrogate M. tuberculosis in evaluating mycobactericidal efficacies of disinfectants.展开更多
Objective Moxifloxacin(MFX)shows good in vitro activity against Mycobacterium abscessus and can be a possible antibiotic therapy to treat M.abscessus infection;however,other studies have shown a lower or no activity.W...Objective Moxifloxacin(MFX)shows good in vitro activity against Mycobacterium abscessus and can be a possible antibiotic therapy to treat M.abscessus infection;however,other studies have shown a lower or no activity.We aimed to evaluate MFX activity against M.abscessus using zebrafish(ZF)model in vivo.Methods A formulation of M.abscessus labeled with CM-Dil was micro-injected into ZF.Survival curves were determined by recording dead ZF every day.ZF were lysed,and colony-forming units(CFUs)were enumerated.Bacteria dissemination and fluorescence intensity in ZF were analyzed.Inhibition rates of MFX and azithromycin(AZM,positive control)were determined and compared.Results Significantly increased survival rate was observed with different AZM concentrations.However,increasing MFX concentration did not result in a significant decrease in ZF survival curve.No significant differences in bacterial burdens by CFU loads were observed between AZM and MFX groups at various concentrations.Bacterial fluorescence intensity in ZF was significantly correlated with AZM concentration.However,with increasing MFX concentration,fluorescence intensity decreased slightly when observed under fluorescence microscope.Transferring rates at various concentrations were comparable between the MFX and AZM groups,with no significant difference.Conclusion MFX showed limited efficacy against M.abscessus in vivo using ZF model.Its activity in vivo needs to be confirmed.展开更多
The proportion of non-tuberculous mycobacteria to Mycobacterium tuberculosis cultivated in the laboratory has been recently increasing. Numerous skin and soft tissue infections have been reported, while osteomyelitis ...The proportion of non-tuberculous mycobacteria to Mycobacterium tuberculosis cultivated in the laboratory has been recently increasing. Numerous skin and soft tissue infections have been reported, while osteomyelitis is reported very rarely. A delayed diagnosis can cause a wide range of bone destruction and joint contracture, which highlights the importance of early recognition of osteomyelitis. Here we report a case of ankle osteomyelitis caused by Mycobacterium abscessus and treatment failure due to delayed diagnosis.展开更多
BACKGROUND The incidence of infection with Mycobacterium abscessus(M.abscessus)has increased in recent years.This increase is partly associated with invasive cosmetic procedures.CASE SUMMARY The purpose of this case s...BACKGROUND The incidence of infection with Mycobacterium abscessus(M.abscessus)has increased in recent years.This increase is partly associated with invasive cosmetic procedures.CASE SUMMARY The purpose of this case summary is to increase clinicians'awareness of M.abscessus infection and reduce mycobacterial infection caused by cosmetic procedures.We report the case of a 45-year-old woman who received acetyl hexapeptide-8(argireline)injections in the forehead and temples,and erythema,nodules,and abscesses appeared at the injection sites after one week.The pus specimens were examined by microbiological culture and confirmed to be positive for M.abscessus.Clarithromycin 500 mg twice daily and moxifloxacin 400 mg once daily were administered for 5 mo and the lesions gradually subsided.CONCLUSION We report here for the first time a case of infection with M.abscessus after argireline injection.This condition is easily misdiagnosed as a common bacterial infection.Microbiological examinations are helpful for diagnosis and standardized cosmetic procedures can prevent infection with M.abscessus.展开更多
BACKGROUND Mycobacterium abscessus(M.abscessus)is a rapidly growing mycobacterium and ubiquitous in the environment,which infrequently causes disease in humans.However,it can cause cutaneous or respiratory infections ...BACKGROUND Mycobacterium abscessus(M.abscessus)is a rapidly growing mycobacterium and ubiquitous in the environment,which infrequently causes disease in humans.However,it can cause cutaneous or respiratory infections among immunocompromised hosts.Due to the resistance to most antibiotics,the pathogen is formidable and difficult-to-treat.CASE SUMMARY Here,we present a case of catheter-related M.abscessus infections in a patient with motor neurone disease.Catheter and peripheral blood cultures of the patient showed positive results during Gram staining and acid-fast staining.The alarm time of catheter blood culture was 10.6 h earlier than that of peripheral blood.After removal of the peripherally inserted central catheter,secretion and catheter blood culture were positive.M.abscessus was identified by matrix-assisted laser desorption ionization-time of flight mass spectrometry and 16S rDNA sequencing.CONCLUSION For catheter-related M.abscessus infection,rapid diagnosis and timely and adequate antimicrobial therapy are crucial.展开更多
With the ever-increasing burden of antimicrobial resistance,the demand to introduce countermeasures becomes increasingly critical.The urgency of this need is intensified by the void in antibiotic discovery,with the id...With the ever-increasing burden of antimicrobial resistance,the demand to introduce countermeasures becomes increasingly critical.The urgency of this need is intensified by the void in antibiotic discovery,with the identification of novel compounds declining with time.Of increasing concern is Mycobacterium abscessus,which displays high levels of intrinsic resistance that lead to poor success rates,even after lengthy drug regimens.Research tackling these issues is now focused on the repurposing of preexisting drugs for antimycobacterial use,facilitating the discovery of antimicrobial compounds amidst a crisis where novel antibiotics are sparse.Part of this includes the use of combination treatments,whereby coadministration of synergistic compounds can reduce dose requirements and slow the progression of antimicrobial resistance in the long term.In this review,we will introduce the current therapeutic options for M.abscessus and provide insight into why treatment is so burdensome.We will also compile the current updates within drug repurposing for this pathogen,including the use of unconventional agents such as antimalarial drugs,the repositioning of antitubercu-losis candidates and the repurposing of preexisting antibiotics,including the application of combination regimens.In addition,the in vitro drug screening platforms used in their discovery will be appraised,with the view of highlighting potential future perspectives that may help increase physiological relevance.This review provides a timely appraisal of the future of M.abscessus treatment.展开更多
目的结合网络药理学、分子对接技术及其体外实验,探讨青蒿应用于脓肿分枝杆菌感染的作用机制。方法从中药系统药理学数据库和分析平台(traditional Chinese medicine systems pharmacology database and analysis platform,TCMSP)系统...目的结合网络药理学、分子对接技术及其体外实验,探讨青蒿应用于脓肿分枝杆菌感染的作用机制。方法从中药系统药理学数据库和分析平台(traditional Chinese medicine systems pharmacology database and analysis platform,TCMSP)系统中获得青蒿的活性成分,使用PharmMapper、SwissTargetPrediction预测青蒿作用靶点。从GeneCards数据库和OMIM数据库获得脓肿分枝杆菌感染相关靶点。获得共同靶点后,使用STRING数据库和Cytoscape软件构建蛋白质-蛋白质相互作用(protein-protein interaction,PPI)网络图。使用Metascape数据库进行基因本体(gene ontology,GO)功能富集分析和京都基因与基因组百科全书(Kyoto encyclopedia of genes and genomes,KEGG)通路富集分析。筛选出青蒿主要潜在活性成分与核心靶点进行分子对接。将青蒿提取物及筛选出的青蒿主要潜在活性成分进行体外实验,探究其最小抑菌浓度,与常用抗脓肿分枝杆菌抗生素的体外联合作用,及其对脓肿分枝杆菌活力的影响。结果共发现48个青蒿靶点参与脓肿分枝杆菌感染的发病机制。MMP9、MAPK3、CASP3、IL2、CASP1、MMP2共6个靶点预测为通过青蒿治疗该疾病的核心靶点。KEGG富集分析表明,青蒿可能通过IL-17信号通路、中性粒细胞胞外陷阱形成、Toll样受体信号通路、肿瘤坏死因子信号通路、MAPK信号通路等炎症和免疫相关信号通路治疗该疾病。分子对接结果表明,青蒿与这些核心靶点具有高亲和力。筛选出柽柳黄素、艾黄素、双氢青蒿素、青蒿提取物对脓肿分枝杆菌具有体外抑菌活性,单独药物的最小抑菌浓度(MIC)值分别为200、100、100、100μg/mL。联合使用青蒿提取物后,克拉霉素、阿奇霉素、阿米卡星、亚胺培南、头孢西丁的MIC值都较单独使用时下降,下降倍数为2~8倍。结论青蒿可能通过多靶点和多途径作用于脓肿分枝杆菌感染,其对脓肿分枝杆菌具有体外抑菌作用并与部分抗生素产生协同作用。展开更多
目的：回顾性分析41例口底重症多间隙感染患者的临床诊治资料。方法：对患者性别、年龄、流行病学特征、感染的诱因、症状、初步诊断、重要伴发疾病、合并症、临床诊断、抗生素的使用（种类及疗程）、手术干预及转归等方面进行总结及系...目的：回顾性分析41例口底重症多间隙感染患者的临床诊治资料。方法：对患者性别、年龄、流行病学特征、感染的诱因、症状、初步诊断、重要伴发疾病、合并症、临床诊断、抗生素的使用（种类及疗程）、手术干预及转归等方面进行总结及系统性分析。结果：男女比例为2．4∶1，年龄10～93岁（平均46．23岁），农村城市比例为3∶1。14．6％患者初步诊断不准确。31％患者在发病后5 d 内就诊。82．9％患者为牙源性感染，35％患者初诊时炎症已扩散至咽旁间隙、翼下颌间隙或者合并颈部感染，7．5％患者感染扩散至纵膈；2例患者入院后已合并严重纵膈及肺部感染，转呼吸内科治疗，1例因肾衰转泌尿外科治疗；38例患者入院后及时给予静脉滴注抗生素抗感染治疗、尽早完成切开引流，痊愈出院，平均住院21 d。结论：牙源性感染的重症口底多间隙感染最多见，其治疗的关键在于早期诊断，维持呼吸道通畅，选择合适的抗生素，尽早切开引流、综合治疗去除病因。展开更多
基金supported by the National Key Programme of Mega Infectious Diseases (2008ZX100/03-010-02)the National Natural Science Funding of China (30800029)
文摘Objective To identify the novel species ‘Mycobacterium fukienense＇ sp. nov of Mycobacterium chelonoe/abscessus complex from tuberculosis patients in Fujian Province, China. Methods Five of 27 clinical Mycobucterium isolates （CIs） were previously identified as M. chelonoe/obscessus complex by sequencing the hsp65, rpoB, 165-235 rRNA internal transcribed spacer region （its）, recA and sodA house-keeping genes commonly used to describe the molecular characteristics of Mycobocterium. Clinical Mycobecterium isolates were classified according to the gene sequence using a clustering analysis program. Sequence similarity within clusters and diversity between clusters were analyzed. Results The 5 isolates were identified with distinct sequences exhibiting 99.8% homology in the hsp65 gene. However, a complete lack of homology was observed among the sequences of the rpoB, 165-235 rRNA internal tronscribed spacer region （its）, sodA, and recA genes as compared with the M. obscessus. Furthermore, no match for rpoB, sodA, and recA genes was identified among the published sequences. Conclusion The novel species, Mycobacterium fukienense, is identified from tuberculosis patients in Fujian Province, China, which does not belong to any existing subspecies of M. cheloneo/abscessus complex.
基金supported by the grant 2012BAI05B02 from National Key Technology Research and Development ProgramChina and grant 81400037 from the National Natural Science Foundation of China
文摘Objective To gain greater insight into the prevalence drug resistant profiles of M. abscessus from a general hospital in Beijing, China. Methods Partial gene sequencing of 16 S, hsp65, and rpo B were used to distinguish the species of NTM isolates. All strains identified as M. abscessus were further enrolled in the drug susceptibility testing by using broth microdilution method. Results We found that M. avium complex was the most frequent NTM organism, accounting for 54.1%（33/61） of all isolates. Behind MAC, the second most common organisms were M. abscessus（22 out of 61, 36.1%）. Average rates of resistance were 4.5% for AMK, 9.1% for LZD, and 13.6% for CLA, respectively. In contrast, resistance to LEV（17/22, 77.3%）, IMI（9/22, 40.9%）, and SMX（10/22, 45.5%） was noted in more than 40% of M. abscessus isolates. DNA sequencing revealed that all the CLA-resistant isolates harbored nucleotide substitutions in position 2058（1/3, 33.3%） or 2059（2/3, 66.7%） of 23 S r RNA. Conclusion In conclusion, our data demonstrated that M. intracellulare and M. abscessus were the most common NTM species in the general hospital of Beijing. CLA, AMK, LZD showed promising activity, where as LEV, IMI, and SMX exhibited poor activity against M. abscessus in vitro.
文摘Objective To determine the susceptibilities of M. tuberculosis H37Ra and M. chelonei subsp. absecessus to several frequently-used disinfectants and to evaluate the practicability of surrogating M. tuberculosis by the latter. Methods A suspension quantitative bactericidal test was set up in accordance with Chinese Technique Standard for Disinfection to evaluate the susceptibility of each mycobacteria strain to each selected disinfectant. Killing log value was used as criterion in comparing the susceptibility to disinfectants between the two strains. Results M. chelonei subsp. abscessus was more resistant to chlorine disinfectant than M. tuberculosis while the two strains were similarly resistant to iodophor disinfectant, peracetic acid, alcohol and glutaraldehyde disinfectant. Conclusion M. chelonei subsp. abscessus has the potential to surrogate M. tuberculosis in evaluating mycobactericidal efficacies of disinfectants.
基金supported by Beijing Hospital Authority Youth Programme[QML20171602]Tongzhou District’s Two Supreme Talent[YH201911]+1 种基金Key Laboratory of Capital Medical University Open Research Project and Beijing Tuberculosis&Thoracic Tumor Research Institute Cultivation Project13th Five National Major Scientific and Technological Projects[2017ZX09304009]。
文摘Objective Moxifloxacin(MFX)shows good in vitro activity against Mycobacterium abscessus and can be a possible antibiotic therapy to treat M.abscessus infection;however,other studies have shown a lower or no activity.We aimed to evaluate MFX activity against M.abscessus using zebrafish(ZF)model in vivo.Methods A formulation of M.abscessus labeled with CM-Dil was micro-injected into ZF.Survival curves were determined by recording dead ZF every day.ZF were lysed,and colony-forming units(CFUs)were enumerated.Bacteria dissemination and fluorescence intensity in ZF were analyzed.Inhibition rates of MFX and azithromycin(AZM,positive control)were determined and compared.Results Significantly increased survival rate was observed with different AZM concentrations.However,increasing MFX concentration did not result in a significant decrease in ZF survival curve.No significant differences in bacterial burdens by CFU loads were observed between AZM and MFX groups at various concentrations.Bacterial fluorescence intensity in ZF was significantly correlated with AZM concentration.However,with increasing MFX concentration,fluorescence intensity decreased slightly when observed under fluorescence microscope.Transferring rates at various concentrations were comparable between the MFX and AZM groups,with no significant difference.Conclusion MFX showed limited efficacy against M.abscessus in vivo using ZF model.Its activity in vivo needs to be confirmed.
文摘The proportion of non-tuberculous mycobacteria to Mycobacterium tuberculosis cultivated in the laboratory has been recently increasing. Numerous skin and soft tissue infections have been reported, while osteomyelitis is reported very rarely. A delayed diagnosis can cause a wide range of bone destruction and joint contracture, which highlights the importance of early recognition of osteomyelitis. Here we report a case of ankle osteomyelitis caused by Mycobacterium abscessus and treatment failure due to delayed diagnosis.
基金The Scientific Research Project of Peking University Shenzhen Hospital,No.JCYJ2018011the San-ming Project of Medicine in Shenzhen,No.SZSM201812059.
文摘BACKGROUND The incidence of infection with Mycobacterium abscessus(M.abscessus)has increased in recent years.This increase is partly associated with invasive cosmetic procedures.CASE SUMMARY The purpose of this case summary is to increase clinicians'awareness of M.abscessus infection and reduce mycobacterial infection caused by cosmetic procedures.We report the case of a 45-year-old woman who received acetyl hexapeptide-8(argireline)injections in the forehead and temples,and erythema,nodules,and abscesses appeared at the injection sites after one week.The pus specimens were examined by microbiological culture and confirmed to be positive for M.abscessus.Clarithromycin 500 mg twice daily and moxifloxacin 400 mg once daily were administered for 5 mo and the lesions gradually subsided.CONCLUSION We report here for the first time a case of infection with M.abscessus after argireline injection.This condition is easily misdiagnosed as a common bacterial infection.Microbiological examinations are helpful for diagnosis and standardized cosmetic procedures can prevent infection with M.abscessus.
文摘BACKGROUND Mycobacterium abscessus(M.abscessus)is a rapidly growing mycobacterium and ubiquitous in the environment,which infrequently causes disease in humans.However,it can cause cutaneous or respiratory infections among immunocompromised hosts.Due to the resistance to most antibiotics,the pathogen is formidable and difficult-to-treat.CASE SUMMARY Here,we present a case of catheter-related M.abscessus infections in a patient with motor neurone disease.Catheter and peripheral blood cultures of the patient showed positive results during Gram staining and acid-fast staining.The alarm time of catheter blood culture was 10.6 h earlier than that of peripheral blood.After removal of the peripherally inserted central catheter,secretion and catheter blood culture were positive.M.abscessus was identified by matrix-assisted laser desorption ionization-time of flight mass spectrometry and 16S rDNA sequencing.CONCLUSION For catheter-related M.abscessus infection,rapid diagnosis and timely and adequate antimicrobial therapy are crucial.
基金funded by the Engineering and Physical Sciences Research Council(EPSRC)and Science Foundation Ireland(SFI)Centre for Doctoral Training in Engineered Tissues for Discovery,Industry and Medicine(EP/S02347X/1)EJB is supported by a PhD Studentship funded by LifETIME CDT(EPSRC and SFI)AM is supported by a PhD Studentship jointly funded by LifETIME CDT(EPSRC and SFI)and Sphere Fluidics.
文摘With the ever-increasing burden of antimicrobial resistance,the demand to introduce countermeasures becomes increasingly critical.The urgency of this need is intensified by the void in antibiotic discovery,with the identification of novel compounds declining with time.Of increasing concern is Mycobacterium abscessus,which displays high levels of intrinsic resistance that lead to poor success rates,even after lengthy drug regimens.Research tackling these issues is now focused on the repurposing of preexisting drugs for antimycobacterial use,facilitating the discovery of antimicrobial compounds amidst a crisis where novel antibiotics are sparse.Part of this includes the use of combination treatments,whereby coadministration of synergistic compounds can reduce dose requirements and slow the progression of antimicrobial resistance in the long term.In this review,we will introduce the current therapeutic options for M.abscessus and provide insight into why treatment is so burdensome.We will also compile the current updates within drug repurposing for this pathogen,including the use of unconventional agents such as antimalarial drugs,the repositioning of antitubercu-losis candidates and the repurposing of preexisting antibiotics,including the application of combination regimens.In addition,the in vitro drug screening platforms used in their discovery will be appraised,with the view of highlighting potential future perspectives that may help increase physiological relevance.This review provides a timely appraisal of the future of M.abscessus treatment.
文摘目的结合网络药理学、分子对接技术及其体外实验,探讨青蒿应用于脓肿分枝杆菌感染的作用机制。方法从中药系统药理学数据库和分析平台(traditional Chinese medicine systems pharmacology database and analysis platform,TCMSP)系统中获得青蒿的活性成分,使用PharmMapper、SwissTargetPrediction预测青蒿作用靶点。从GeneCards数据库和OMIM数据库获得脓肿分枝杆菌感染相关靶点。获得共同靶点后,使用STRING数据库和Cytoscape软件构建蛋白质-蛋白质相互作用(protein-protein interaction,PPI)网络图。使用Metascape数据库进行基因本体(gene ontology,GO)功能富集分析和京都基因与基因组百科全书(Kyoto encyclopedia of genes and genomes,KEGG)通路富集分析。筛选出青蒿主要潜在活性成分与核心靶点进行分子对接。将青蒿提取物及筛选出的青蒿主要潜在活性成分进行体外实验,探究其最小抑菌浓度,与常用抗脓肿分枝杆菌抗生素的体外联合作用,及其对脓肿分枝杆菌活力的影响。结果共发现48个青蒿靶点参与脓肿分枝杆菌感染的发病机制。MMP9、MAPK3、CASP3、IL2、CASP1、MMP2共6个靶点预测为通过青蒿治疗该疾病的核心靶点。KEGG富集分析表明,青蒿可能通过IL-17信号通路、中性粒细胞胞外陷阱形成、Toll样受体信号通路、肿瘤坏死因子信号通路、MAPK信号通路等炎症和免疫相关信号通路治疗该疾病。分子对接结果表明,青蒿与这些核心靶点具有高亲和力。筛选出柽柳黄素、艾黄素、双氢青蒿素、青蒿提取物对脓肿分枝杆菌具有体外抑菌活性,单独药物的最小抑菌浓度(MIC)值分别为200、100、100、100μg/mL。联合使用青蒿提取物后,克拉霉素、阿奇霉素、阿米卡星、亚胺培南、头孢西丁的MIC值都较单独使用时下降,下降倍数为2~8倍。结论青蒿可能通过多靶点和多途径作用于脓肿分枝杆菌感染,其对脓肿分枝杆菌具有体外抑菌作用并与部分抗生素产生协同作用。
文摘目的：回顾性分析41例口底重症多间隙感染患者的临床诊治资料。方法：对患者性别、年龄、流行病学特征、感染的诱因、症状、初步诊断、重要伴发疾病、合并症、临床诊断、抗生素的使用（种类及疗程）、手术干预及转归等方面进行总结及系统性分析。结果：男女比例为2．4∶1，年龄10～93岁（平均46．23岁），农村城市比例为3∶1。14．6％患者初步诊断不准确。31％患者在发病后5 d 内就诊。82．9％患者为牙源性感染，35％患者初诊时炎症已扩散至咽旁间隙、翼下颌间隙或者合并颈部感染，7．5％患者感染扩散至纵膈；2例患者入院后已合并严重纵膈及肺部感染，转呼吸内科治疗，1例因肾衰转泌尿外科治疗；38例患者入院后及时给予静脉滴注抗生素抗感染治疗、尽早完成切开引流，痊愈出院，平均住院21 d。结论：牙源性感染的重症口底多间隙感染最多见，其治疗的关键在于早期诊断，维持呼吸道通畅，选择合适的抗生素，尽早切开引流、综合治疗去除病因。
