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Ghaffari K, Falahati V, Motallebirad T, Safarabadi M, Tashakor AH, Azadi D. Microbiological and Molecular Study of Paranasal Sinus Infections of Children with Malignancy and Unknown Origin Fever in Markazi Province, Iran. CURRENT THERAPEUTIC RESEARCH 2024; 100:100745. [PMID: 38617893 PMCID: PMC11015527 DOI: 10.1016/j.curtheres.2024.100745] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Accepted: 03/13/2024] [Indexed: 04/16/2024]
Abstract
Background Children with malignancies are vulnerable to various infections, including sinus infections. Sinusitis is primarily caused by bacterial infections, followed by fungal infections. Due to this, evaluating the occurrence, diversity, and antibiotic susceptibility patterns of bacterial species that cause paranasal sinus infections in children with malignancy and unexplained fever is important. Objective To investigate the bacterial species accountable for sinusitis in children with malignancy and unexplained fever, and determine their susceptibility to antibiotics. Methods The study involved collecting 90 sinus samples from children aged 5 to 15 years with malignancy in Arak City, Iran. The isolates were identified using a combination of phenotypic, biochemical, and molecular techniques, including specific polymerase chain reaction and 16S ribosomal RNA gene sequencing. Drug susceptibility testing was performed following the Clinical & Laboratory Standards Institute 2021 guidelines. Results A total of 36 isolates (40%) were obtained, including 4 isolates of Nocardia (11.12%), 4 isolates of Escherichia coli (11.12%), 3 isolates of Klebsiella pneumoniae (8.33%), 5 isolates of Pseudomonas aeruginosa (13.88%), 3 isolates of Acinetobacter baumannii (8.33%), 4 isolates of Staphylococcus aureus (11.12%), 3 isolates of Staphylococcus epidermidis (8.33%), 5 isolates of Streptococcus agalactiae (13.88%), 2 isolates of Streptococcus pneumoniae (5.55%), and 3 isolates of Enterococcus faecium (8.33%). The isolates showed the most sensitivity to imipenem and trimethoprim-sulfamethoxazole and the least sensitivity to erythromycin and tetracycline. Conclusions The findings of the study indicate that sinusitis can contribute to fever of unknown origin in patients with cancer. Therefore, it is recommended to use a combination of molecular and phenotypic methods for accurate identification of isolates. This approach can provide more reliable and precise results, leading to better diagnosis and treatment of sinusitis infections in children with malignancy.
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Affiliation(s)
- Kazem Ghaffari
- Department of Basic Sciences, Khomein University of Medical Sciences, Khomein, Iran
- Student Research Comittee, Khomein University Of Medical Sciences, Khomein, Iran
| | - Vahid Falahati
- Department of Pediatrics, Arak University of Medical Sciences, Arak, Iran
| | - Tahereh Motallebirad
- Department of Basic Sciences, Khomein University of Medical Sciences, Khomein, Iran
| | - Mahdi Safarabadi
- Department of Nursing, Khomein University of Medical Sciences, Khomein, Iran
| | - Amir Hossein Tashakor
- Department of Microbiology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Davood Azadi
- Department of Basic Sciences, Khomein University of Medical Sciences, Khomein, Iran
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Ebisu Y, Natori Y, Rosello G, Anjan S, Simkins J, Camargo JF, Morris MI, Martinez OV, Abbo LM. Mycobacterium abscessus infections in Solid Organ Transplant Recipients. Single Center Experience in the United States, 2013-2018. Open Forum Infect Dis 2022; 9:ofac254. [PMID: 35854996 PMCID: PMC9290548 DOI: 10.1093/ofid/ofac254] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2022] [Accepted: 05/16/2022] [Indexed: 11/14/2022] Open
Abstract
Background Mycobacterium abscessus is increasingly recognized as a human pathogen causing life-threatening infections in immunocompromised patients. There is a paucity of data around this topic in solid organ transplant (SOT) recipients. Methods This work was a single-center retrospective cohort study of all SOT recipients with a positive culture for M abscessus between 2013 and 2018. Results A total of 20 patients (55% female) met inclusion criteria, including 1 kidney recipient (5.0%), 2 liver recipients (10.0%), 12 lung recipients (60.0%), 1 heart recipient (5.0%), and 4 combined organ recipients (20.0%). The median time from SOT to infection was 100 days (range, 30–431 days). Thirteen (65.0%) patients (1 kidney, 1 heart, 7 lung, 1 liver, 1 intestine, and 2 multivisceral) were treated with a median duration of 185 antibiotic days (range, 20–523 days). Among them, M abscessus was isolated from respiratory samples in 8 and nonrespiratory samples in 5; 4 of 13 (30.8%) patients had treatment failure and 3 of 13 (23.1%) had unrelated deaths within 1 year after diagnosis. Seven patients (5 lung transplant recipients) with the organism isolated from respiratory samples were not treated as their cultures represented airway colonization or contamination; of those, 2 (28.6%) died (unrelated to infection) and 5 (71.4%) were alive without the infection after 1 year of follow-up. Conclusions Mycobacterium abscessus infections affect SOT recipients with a high proportion of clinical failures. However, in lung recipients, not all positive cultures correlated with infection, and without treatment some patients had good clinical outcomes. Thus, differentiating colonization from infection is important, and infection prevention measures and novel therapeutic agents are needed for SOT recipients.
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Affiliation(s)
- Yosuke Ebisu
- Division of Infectious Diseases, Department of Medicine, Kameda Medical Center, Chiba, Japan
| | - Yoichiro Natori
- Division of Infectious Disease, Department of Medicine, University of Miami Miller School of Medicine Miami, FL, USA
- Miami Transplant Institute, Jackson Health System, Miami, FL, USA
| | - Gemma Rosello
- Beth Israel Deaconess Medical Center, Boston, MA, USA
| | - Shweta Anjan
- Division of Infectious Disease, Department of Medicine, University of Miami Miller School of Medicine Miami, FL, USA
- Miami Transplant Institute, Jackson Health System, Miami, FL, USA
| | - Jacques Simkins
- Division of Infectious Disease, Department of Medicine, University of Miami Miller School of Medicine Miami, FL, USA
- Miami Transplant Institute, Jackson Health System, Miami, FL, USA
| | - Jose F. Camargo
- Division of Infectious Disease, Department of Medicine, University of Miami Miller School of Medicine Miami, FL, USA
| | - Michele I. Morris
- Division of Infectious Disease, Department of Medicine, University of Miami Miller School of Medicine Miami, FL, USA
| | | | - Lilian M Abbo
- Division of Infectious Disease, Department of Medicine, University of Miami Miller School of Medicine Miami, FL, USA
- Miami Transplant Institute, Jackson Health System, Miami, FL, USA
- Jackson Health System, Miami, FL, USA
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Varughese S, Sahay M, Shah D, Nagvekar V, Jha V. Evaluation and management of tuberculosis in solid organ transplant recipients: South Asian expert group opinion. INDIAN JOURNAL OF TRANSPLANTATION 2022. [DOI: 10.4103/ijot.ijot_18_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
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McCort M, MacKenzie E, Pursell K, Pitrak D. Bacterial infections in lung transplantation. J Thorac Dis 2021; 13:6654-6672. [PMID: 34992843 PMCID: PMC8662486 DOI: 10.21037/jtd-2021-12] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Accepted: 02/18/2021] [Indexed: 12/30/2022]
Abstract
Lung transplantation has lower survival rates compared to other than other solid organ transplants (SOT) due to higher rates of infection and rejection-related complications, and bacterial infections (BI) are the most frequent infectious complications. Excess morbidity and mortality are not only a direct consequence of these BI, but so are subsequent loss of allograft tolerance, rejection, and chronic lung allograft dysfunction due to bronchiolitis obliterans syndrome (BOS). A wide variety of pathogens can cause infections in lung transplant recipients (LTRs), including a number of nosocomial pathogens and other multidrug-resistant (MDR) pathogens. Although pneumonia and intrathoracic infections predominate, LTRs are at risk of a number of types of infections. Risk factors include altered anatomy and function of airways, impaired immunity, the microbial flora of the donor and recipient, underlying medical conditions, and genetic factors. Further work on immune monitoring has the potential to improve outcomes. The infecting agents can be derived from the donor lung, pre-existing recipient flora, or acquired from the environment over time. Certain infections may preclude lung transplantation, but this varies from center to center, and more recent studies suggest fewer patients should be disqualified. New molecular methods allow microbiome studies of the lung, gut, and other sites that may further our knowledge of how airway colonization can result in infection and allograft loss. Surveillance, early diagnosis, and aggressive antimicrobial therapy of BI is critical in LTRs. Antibiotic resistance is a major barrier to successful management of these infections. The availability of new agents for MDR Gram-negatives may improve outcomes. Other new therapies, such as bacteriophage therapy, show promise for the future. Finally, it is important to prevent infections through peri-transplant prophylaxis, vaccination, and infection control measures.
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Affiliation(s)
- Margaret McCort
- Albert Einstein College of Medicine, Division of Infectious Disease, New York, NY, USA
| | - Erica MacKenzie
- University of Chicago Medicine, Section of Infectious Diseases and Global Health, Chicago, IL, USA
| | - Kenneth Pursell
- University of Chicago Medicine, Section of Infectious Diseases and Global Health, Chicago, IL, USA
| | - David Pitrak
- University of Chicago Medicine, Section of Infectious Diseases and Global Health, Chicago, IL, USA
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Abstract
PURPOSE OF REVIEW Nontuberculous mycobacteria (NTM) are emerging pathogens of concern especially in solid organ transplant candidates and recipients. This review aims to address diagnostic challenges, new and emerging treatment options, and infection prevention. RECENT FINDINGS The incidence of NTM infections in transplant candidates and recipients is rising. The infection prevalence of these environmental pathogens varies geographically by species with a coastal predominance. Although existing guidelines from the American Thoracic Society, Infectious Diseases Society of America, and British Thoracic Society provide recommendations for diagnosis and management, they do not fully address the subtle nuances and challenges faced in managing infections in immunocompromised transplant recipients. Evolving data on new therapeutic agents and their use in combination therapy will help individualize treatment regimens while limiting adverse effects and improving compliance. Use of combination β-lactams, avibactam, tedizolid, clofazimine, bedaquiline, liposomal amikacin, and ciprofloxacin for commonly isolated species such as Mycobacterium abscessus and Mycobacterium avium complex have proven effective. SUMMARY Further studies are needed to determine the incidence of NTM infection in a prospective, multicentric manner and evaluate the most promising synergistic treatment combinations in transplant recipients.
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Longworth SA, Daly JS. Management of infections due to nontuberculous mycobacteria in solid organ transplant recipients-Guidelines from the American Society of Transplantation Infectious Diseases Community of Practice. Clin Transplant 2019; 33:e13588. [PMID: 31077618 DOI: 10.1111/ctr.13588] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2019] [Accepted: 05/06/2019] [Indexed: 01/06/2023]
Abstract
These updated guidelines from the American Society of Transplantation Infectious Diseases Community of Practice review the epidemiology, diagnosis, prevention, and management of nontuberculous mycobacterial infections in the pre- and post-transplant period. NTM commonly cause one of five different clinical syndromes: pleuropulmonary disease, skin and soft tissue infection, osteoarticular infection, disseminated disease, including that caused by catheter-associated infection, and lymphadenitis. Diagnosis of these infections can be challenging, particularly when they are isolated from nonsterile spaces, owing to their ubiquity in nature. Consequently, diagnosis of pulmonary infections with these pathogens requires fulfillment of microbiologic, radiographic, and clinical criteria to address this concern. A combination of culture and molecular diagnostic techniques is often required to make a species-level identification. Treatment varies depending on the species isolated and is complex, owing to drug toxicities, need for long-term multidrug regimens, and consideration of complex drug-drug interactions between antimicrobials and immunosuppressive agents. Given these treatment challenges, efforts should be made in both the hospital and community settings to limit exposure to these pathogens to the extent feasible.
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Affiliation(s)
- Sarah A Longworth
- Division of Infectious Disease, Hospital of University of Pennsylvania, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania
| | - Jennifer S Daly
- UMass Memorial Health Care, University of Massachusetts Medical School, Worcester, Massachusetts
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Malinis MF. Management of Mycobacterium Other than Tuberculosis in Solid Organ Transplantation. Infect Dis Clin North Am 2018; 32:719-732. [PMID: 30146032 DOI: 10.1016/j.idc.2018.04.011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
Mycobacteria other than tuberculosis are important pathogens to consider in solid organ transplant recipients. Delay in recognition and treatment may incur significant morbidity and mortality. Management of mycobacteria other than tuberculosis requires a knowledge of treatment specific for each species and drug-drug interactions between antimicrobial and immunosuppressive drugs. Therapy in solid organ transplant can be prolonged and may require a reduction in immunosuppression to improve outcomes.
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Affiliation(s)
- Maricar F Malinis
- Section of Infectious Diseases, Yale School of Medicine, PO Box 208022, New Haven, CT 06520-8022, USA.
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Anjan S, Morris MI. How can we improve the outcome for transplant patients with nontuberculous mycobacterial infections? Future Microbiol 2018; 13:903-914. [PMID: 29888973 DOI: 10.2217/fmb-2018-0006] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Nontuberculous mycobacteria (NTM) are environmental organisms that are rapidly emerging as pathogens in the transplant population. The prevalence of infection in transplant recipients remains unknown. While guidelines exist for treatment of NTM, neither the American Thoracic Society, the Infectious Diseases Society of America, nor the British Thoracic Society guidelines dictate the approach needed for transplant recipients. Here, we summarize risk factors, important diagnostic and treatment facts, and preventive measures to be taken to help improve outcomes of those infected with NTM infections.
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Affiliation(s)
- Shweta Anjan
- Department of Medicine, Jackson Memorial Hospital, Miami, FL, 33136, USA.,Department of Medicine, Division of Infectious Disease, University of Miami Miller School of Medicine, Miami, FL, 33136, USA
| | - Michele I Morris
- Department of Medicine, Jackson Memorial Hospital, Miami, FL, 33136, USA.,Department of Medicine, Division of Infectious Disease, University of Miami Miller School of Medicine, Miami, FL, 33136, USA
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Song Y, Zhang L, Yang H, Liu G, Huang H, Wu J, Chen J. Nontuberculous mycobacteriuminfection in renal transplant recipients: a systematic review. Infect Dis (Lond) 2018; 50:409-416. [PMID: 29400108 DOI: 10.1080/23744235.2017.1411604] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Affiliation(s)
- Yan Song
- Kidney Disease Center, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, PR China
| | - Li Zhang
- Kidney Disease Department, The Fourth Affiliated Hospital, College of Medicine, Zhejiang University, Yiwu, PR China
| | - Hao Yang
- Kidney Disease Center, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, PR China
| | - Guangjun Liu
- Kidney Disease Center, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, PR China
| | - Hongfeng Huang
- Kidney Disease Center, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, PR China
| | - Jianyong Wu
- Kidney Disease Center, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, PR China
| | - Jianghua Chen
- Kidney Disease Center, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, PR China
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10
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Abstract
Mycobacterium abscessus complex (MAbsC) disease in lung transplant recipients is increasingly being recognized as an important cause of graft function decline and suboptimal outcomes. Lung transplant recipients appear to be at the highest risk of MAbsC among solid organ transplant recipients, as they have more intense immunosuppression, and the organisms preferentially inhabit the lungs. MAbsC is the most resistant species of rapidly growing mycobacteria and difficult to treat, causing considerable mortality and morbidity in immunocompetent and immunosuppressed patients. Herein we describe the risk factors, epidemiology, clinical features, diagnostics, and treatment strategies of MAbsC in lung transplant candidates and recipients.
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11
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Abad CL, Razonable RR. Non-tuberculous mycobacterial infections in solid organ transplant recipients: An update. J Clin Tuberc Other Mycobact Dis 2016; 4:1-8. [PMID: 31723683 PMCID: PMC6850244 DOI: 10.1016/j.jctube.2016.04.001] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2015] [Revised: 04/05/2016] [Accepted: 04/08/2016] [Indexed: 11/21/2022] Open
Abstract
Non-tuberculous mycobacteria are ubiquitous environmental organisms that are now increasingly recognized as important causes of clinical disease in solid organ transplant recipients. Risk factors of non-tuberculous mycobacteria infection are severe immunologic defects and structural abnormalities. Lung transplant recipients are at higher risk for non-tuberculous mycobacterial disease compared to recipients of other solid organs. The clinical presentation could be skin and soft tissue infection, osteoarticular disease, pleuropulmonary infection, bloodstream (including catheter-associated) infection, lymphadenitis, and disseminated or multi-organ disease. Management of non-tuberculous mycobacteria infection is complex due to the prolonged treatment course with multi-drug regimens that are anticipated to interact with immunosuppressive medications. This review article provides an update on infections due to non-tuberculous mycobacteria after solid organ transplantation, and discusses the epidemiology, risk factors, clinical presentation, and management.
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Affiliation(s)
- Cybele L Abad
- Division of Infectious Diseases and the William J von Liebig Center for Transplantation and Clinical Regeneration, Mayo Clinic, Rochester, 55905 MN, United States
| | - Raymund R Razonable
- Division of Infectious Diseases and the William J von Liebig Center for Transplantation and Clinical Regeneration, Mayo Clinic, Rochester, 55905 MN, United States
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Tigecycline Potentiates Clarithromycin Activity against Mycobacterium avium In Vitro. Antimicrob Agents Chemother 2016; 60:2577-9. [PMID: 26883697 DOI: 10.1128/aac.02864-15] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2015] [Accepted: 02/08/2016] [Indexed: 11/20/2022] Open
Abstract
Thein vitroactivities of clarithromycin and tigecycline alone and in combination againstMycobacterium aviumwere assessed. The activity of clarithromycin was time dependent, highly variable, and often resulted in clarithromycin resistance. Tigecycline showed concentration-dependent activity, and mycobacterial killing could only be achieved at high concentrations. Tigecycline enhanced clarithromycin activity againstM. aviumand prevented clarithromycin resistance. Whether there is clinical usefulness of tigecycline in the treatment ofM. aviuminfections needs further study.
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Silva JT, López-Medrano F, Fernández-Ruiz M, San-Juan R, Ruiz-Cano MJ, Delgado JF, Aguado JM. Mycobacterium abscessus pulmonary infection complicated with vertebral osteomyelitis in a heart transplant recipient: case report and literature review. Transpl Infect Dis 2015; 17:418-23. [PMID: 25816889 DOI: 10.1111/tid.12381] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2014] [Revised: 10/02/2014] [Accepted: 02/22/2015] [Indexed: 11/30/2022]
Abstract
Infections produced by Mycobacterium abscessus are emerging in immunosuppressed patients, such as solid organ transplant recipients. We report the first case, to our knowledge, of a vertebral osteomyelitis caused by M. abscessus in a heart transplant recipient, and review the risk factors, manifestations, and therapeutic approaches to this uncommon disease.
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Affiliation(s)
- J T Silva
- Unit of Infectious Diseases, Hospital Universitario "12 de Octubre", Instituto de Investigación Hospital "12 de Octubre", Universidad Complutense, Madrid, Spain
| | - F López-Medrano
- Unit of Infectious Diseases, Hospital Universitario "12 de Octubre", Instituto de Investigación Hospital "12 de Octubre", Universidad Complutense, Madrid, Spain
| | - M Fernández-Ruiz
- Unit of Infectious Diseases, Hospital Universitario "12 de Octubre", Instituto de Investigación Hospital "12 de Octubre", Universidad Complutense, Madrid, Spain
| | - R San-Juan
- Unit of Infectious Diseases, Hospital Universitario "12 de Octubre", Instituto de Investigación Hospital "12 de Octubre", Universidad Complutense, Madrid, Spain.,Department of Microbiology, Hospital Universitario "12 de Octubre", Madrid, Spain
| | - M J Ruiz-Cano
- Department of Cardiology, Hospital Universitario "12 de Octubre", Madrid, Spain
| | - J F Delgado
- Department of Cardiology, Hospital Universitario "12 de Octubre", Madrid, Spain
| | - J M Aguado
- Unit of Infectious Diseases, Hospital Universitario "12 de Octubre", Instituto de Investigación Hospital "12 de Octubre", Universidad Complutense, Madrid, Spain
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Fukui S, Sekiya N, Takizawa Y, Morioka H, Kato H, Aono A, Chikamatsu K, Mitarai S, Kobayashi S, Kamei S, Setoguchi K. Disseminated Mycobacterium abscessus Infection Following Septic Arthritis: A Case Report and Review of the Literature. Medicine (Baltimore) 2015; 94:e861. [PMID: 26020393 PMCID: PMC4616402 DOI: 10.1097/md.0000000000000861] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
Mycobacterium abscessus is a rapidly growing mycobacterium found mainly in patients with respiratory or cutaneous infections, but it rarely causes disseminated infections. Little is known about the clinical characteristics, treatment, and prognosis of disseminated M abscessus infection. A 75-year-old Japanese woman who had been treated for 17 years with a corticosteroid for antisynthetase syndrome with antithreonyl-tRNA synthetase antibody developed swelling of her right elbow. X-ray of her right elbow joint showed osteolysis, and magnetic resonance imaging revealed fluid in her right elbow joint. M abscessus grew in joint fluid and blood cultures. She was diagnosed with a disseminated M abscessus infection following septic arthritis. Antimicrobial treatment by clarithromycin, amikacin, and imipenem/cilastatin combined with surgical debridement was administered. Although blood and joint fluid cultures became negative 1 week later, the patient died at 6 weeks from starting antimicrobial treatment. We reviewed 34 cases of disseminated M abscessus infections from the literature. Most of the patients had immunosuppressive backgrounds such as transplantation, use of immunosuppressive agents, hematological malignancy, and end stage renal disease. The duration from onset of symptoms to diagnosis was over 3 months in half of the cases. All fatal cases had positive blood cultures or use of immunosuppressive agents. Clinicians should bear in mind that mycobacterial infections including M abscessus are one of the differential diagnoses in patients with subacute arthritis and soft tissue infections.
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Affiliation(s)
- Shoichi Fukui
- From the Department of Rheumatology (SF, YT, S Kobayashi, S Kamei, KS); Clinical Laboratory (NS, HM, HK), Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital, Tokyo; and Department of Mycobacterium Reference and Research (AA, KC, SM), The Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, Kiyose, Japan
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Abstract
Rapidly growing mycobacteria (RGM) include a diverse group of species. We address the treatment of the most commonly isolated RGM-M abscessus complex, M fortuitum, and M chelonae. The M abscessus complex is composed of 3 closely related species: M abscessus senso stricto (hereafter M abscessus), M massiliense, and M bolletii. Most studies address treatment of M abscessus complex, which accounts for 80% of lung disease caused by RGM and is the second most common RGM to cause extrapulmonary disease (after M fortuitum). The M abscessus complex represent the most drug-resistant nontuberculous mycobacteria and are the most difficult to treat.
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Affiliation(s)
- Shannon H Kasperbauer
- Division of Mycobacterial and Respiratory Infections, National Jewish Health, 1400 Jackson Street, Denver, CO 80206, USA; Division of Infectious Diseases, University of Colorado Health Sciences Center, 12700 East 19th Avenue, Research Complex 2, Campus Box B168, Aurora, CO 80045, USA.
| | - Mary Ann De Groote
- Department of Microbiology, Immunology and Pathology, Colorado State University, Campus Box 1682, Fort Collins, CO 80523, USA
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Update on Nontuberculous Mycobacterial Infections in Solid Organ and Hematopoietic Stem Cell Transplant Recipients. Curr Infect Dis Rep 2014; 16:421. [DOI: 10.1007/s11908-014-0421-1] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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Wallace RJ, Dukart G, Brown-Elliott BA, Griffith DE, Scerpella EG, Marshall B. Clinical experience in 52 patients with tigecycline-containing regimens for salvage treatment of Mycobacterium abscessus and Mycobacterium chelonae infections. J Antimicrob Chemother 2014; 69:1945-53. [PMID: 24633206 PMCID: PMC4054987 DOI: 10.1093/jac/dku062] [Citation(s) in RCA: 131] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
Abstract
OBJECTIVES We report the largest clinical experience using tigecycline-containing regimens for salvage treatment of patients with Mycobacterium abscessus and Mycobacterium chelonae. PATIENTS AND METHODS Data were collected from 52 patients on emergency/compassionate use (n = 38) or two open-label studies (n = 7 patients each). Based on information that was available, 46 (88.5%) of the subjects received antibiotic therapy prior to treatment with tigecycline. Treatment groups were evaluated based on length of tigecycline therapy (<1 and ≥1 month). ClinicalTrials.gov identifiers: Study 205, NCT00600600 and Study 310, NCT00205816. RESULTS The most commonly used concomitant antimicrobials were macrolides, amikacin and linezolid. Pulmonary disease was the most common presentation (36/52; 69.2%), and 58.3% of these patients had underlying cystic fibrosis. The majority were M. abscessus complex (n = 30) or M. chelonae/abscessus (n = 4). With therapy ≥1 month (mean, 255.0 ± 265.7 days), 10/15 patients (66.7%) with cystic fibrosis and 16/26 (61.5%) overall were considered improved. Skin/soft-tissue/bone infections were the most common extrapulmonary infections. With therapy ≥1 month (mean, 143 ± 123 days), 9/12 patients (75.0%) were considered improved. Nine of the 16 cases reported as failures regardless of site of infection occurred in patients who stopped treatment due to adverse events. There were eight deaths; none was related to tigecycline. CONCLUSIONS Tigecycline given for ≥1 month as part of a multidrug regimen resulted in improvement in >60% of patients with M. abscessus and M. chelonae infections, including those with underlying cystic fibrosis, despite failure of prior antibiotic therapy. Adverse events were reported in >90% of cases, the most common being nausea and vomiting.
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Affiliation(s)
- Richard J Wallace
- The Mycobacteria/Nocardia Research Laboratory, Department of Microbiology, The University of Texas Health Science Center at Tyler, 11937 U.S. Hwy 271, Tyler, TX 75708, USA Department of Medicine, The University of Texas Health Science Center at Tyler, 11937 U.S. Hwy 271, Tyler, TX 75708, USA
| | - Gary Dukart
- Specialty Care, Pfizer Inc., 500 Arcola Road, Collegeville, PA 19426, USA
| | - Barbara A Brown-Elliott
- The Mycobacteria/Nocardia Research Laboratory, Department of Microbiology, The University of Texas Health Science Center at Tyler, 11937 U.S. Hwy 271, Tyler, TX 75708, USA
| | - David E Griffith
- Department of Medicine, The University of Texas Health Science Center at Tyler, 11937 U.S. Hwy 271, Tyler, TX 75708, USA
| | | | - Bonnie Marshall
- Specialty Care, Pfizer Inc., 500 Arcola Road, Collegeville, PA 19426, USA
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Lerat I, Cambau E, Roth Dit Bettoni R, Gaillard JL, Jarlier V, Truffot C, Veziris N. In vivo evaluation of antibiotic activity against Mycobacterium abscessus. J Infect Dis 2013; 209:905-12. [PMID: 24253289 DOI: 10.1093/infdis/jit614] [Citation(s) in RCA: 77] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND The prognosis of Mycobacterium abscessus infections is poor due to the lack of effective drug treatment. The objective of this study was to set up an animal model suitable to test antibiotic activity against M. abscessus. METHODS The following mouse strains were evaluated: Swiss, BALB/c, C57BL/6, nude, beige, A/J, and GKO. Antibiotic activity was tested for clarithromycin, amikacin, cefoxitin, tigecycline, and bedaquiline (TMC207). Finally, we evaluated the 3-drug combination clarithromycin, cefoxitin, and amikacin. RESULTS Nude and GKO mice fulfilled criteria for the model but only nude mice offered sufficient availability for large therapeutic experiments. Among the 3 drugs usually combined for treatment of M. abscessus infection, cefoxitin was the most active because it improved survival and reduced bacillary loads in spleen whereas clarithromycin and amikacin prevented death but had little impact on bacillary loads. The triple-drug combination was not more active than cefoxitin alone. Tigecycline displayed bactericidal activity whereas bedaquiline was almost inactive. CONCLUSIONS Nude mice are an adequate model for in vivo chemotherapy studies. Among tested drugs, cefoxitin and tigecycline showed promising in vivo activity against M. abscessus. The best drug combination remains to be determined.
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Affiliation(s)
- Isabelle Lerat
- Laboratoire de Bactériologie-Hygiène, Faculté de Médecine, Université Pierre et Marie Curie
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Abstract
Lung transplantation has become an accepted therapeutic procedure for the treatment of end‐stage pulmonary parenchymal and vascular disease. Despite improved survival rates over the decades, lung transplant recipients have lower survival rates than other solid organ transplant recipients. The morbidity and mortality following lung transplantation is largely due to infection‐ and rejection‐related complications. This article will review the common infections that develop in the lung transplant recipient, including the general risk factors for infection in this population, and the most frequent bacterial, viral, fungal and other less frequent opportunistic infections. The epidemiology, diagnosis, prophylaxis, treatment and outcomes for the different microbial pathogens will be reviewed. The effects of infection on lung transplant rejection will also be discussed.
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Affiliation(s)
- Sergio R Burguete
- Department of Medicine, Division of Pulmonary Diseases and Critical Care Medicine, University of Texas Health Science Center at San Antonio, Texas 78229-3900, USA
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Abstract
PURPOSE OF REVIEW Hematopoietic stem cell as well as solid-organ transplantation is being carried out with increasing frequency throughout the world. Lower respiratory tract infections (LRTIs) remain a common life-threatening complication faced by the transplant recipients. The purpose of this review is to provide up-to-date information on pulmonary infections among the transplant recipients, especially emphasizing the endemicity of microorganisms, epidemiology, work-up of infections, and principles of their management. RECENT FINDINGS A lower respiratory tract infection such as pneumonia is the most frequent of all the infections and is associated with high morbidity and mortality. Factors increasing the risk of pulmonary infections include surgical techniques, immune status, chemoradiotherapy, alloimmune mechanisms between the host and the graft, and the environment. A high degree of suspicion, computed tomography (CT) scan of the chest, and flexible bronchoscopy are required in most to establish the diagnosis. SUMMARY Proper management of LRTI in transplant recipients requires a high degree of suspicion, thorough knowledge of the epidemiology and endemicity of the suspected organisms, CT scan of the chest, and expertise at bronchoscopy. Utmost teamwork among transplant physicians, infectious disease specialist, and bronchoscopist is essential.
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Huang CW, Chen JH, Hu ST, Huang WC, Lee YC, Huang CC, Shen GH. Synergistic activities of tigecycline with clarithromycin or amikacin against rapidly growing mycobacteria in Taiwan. Int J Antimicrob Agents 2013; 41:218-23. [PMID: 23312605 DOI: 10.1016/j.ijantimicag.2012.10.021] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2012] [Revised: 09/19/2012] [Accepted: 10/12/2012] [Indexed: 11/18/2022]
Abstract
The occurrence of diseases caused by rapidly growing mycobacteria (RGM) is increasing in Taiwan. In this study, the in vitro antimicrobial activities of tigecycline, minocycline, tetracycline and doxycycline were evaluated against 160 clinical RGM isolates, including 34 Mycobacterium abscessus sensu stricto (s.s.), 44 Mycobacterium massiliense, 1 Mycobacterium bolletii, 58 Mycobacterium fortuitum and 23 Mycobacterium chelonae. Clarithromycin and amikacin were tested alone as well as for synergistic effect with tigecycline. Both amikacin and tigecycline showed excellent activities against the RGM. More than 85% of each of the five RGM species isolates showed susceptibility to the two drugs. The MIC₅₀ and MIC₉₀ values (drug concentrations at which 50% and 90%, respectively, of the tested isolates did not show any visible growth) of amikacin were 1-4 mg/L and 2-8 mg/L, respectively, whilst those of tigecycline were 0.125-1 mg/L and 0.5-2.0 mg/L. Clarithromycin had only moderate activity, with ≥42.9% but ≤87.5% of each RGM species isolates showing susceptibility. The other three drugs had limited or no antimicrobial activity, with <40% of each RGM species isolates showing susceptibility. Combined with clarithromycin, tigecycline had synergistic activity against 92.9%, 68.8%, 100%, 35.7% and 46.2% of M. abscessus s.s., M. massiliense, M. bolletii, M. fortuitum and M. chelonae isolates, respectively. However, tigecycline combined with amikacin had synergistic activity against <25% but antagonistic activity against >18% of each RGM species. Thus, tigecycline alone may be an alternative for treating RGM diseases in patients who are intolerant to cefoxitin, imipenem or amikacin. However, it should be used with caution or not used in combination with amikacin for RGM diseases.
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Affiliation(s)
- Chien-Wen Huang
- Division of Respiratory and Critical Care Medicine, Department of Internal Medicine, Fong Yuan Hospital, Taiwan Department of Health, Taichung, Taiwan, ROC
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Williams MM, Armbruster CR, Arduino MJ. Plumbing of hospital premises is a reservoir for opportunistically pathogenic microorganisms: a review. BIOFOULING 2013; 29:147-62. [PMID: 23327332 PMCID: PMC9326810 DOI: 10.1080/08927014.2012.757308] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
Several bacterial species that are natural inhabitants of potable water distribution system biofilms are opportunistic pathogens important to sensitive patients in healthcare facilities. Waterborne healthcare-associated infections (HAI) may occur during the many uses of potable water in the healthcare environment. Prevention of infection is made more challenging by lack of data on infection rate and gaps in understanding of the ecology, virulence, and infectious dose of these opportunistic pathogens. Some healthcare facilities have been successful in reducing infections by following current water safety guidelines. This review describes several infections, and remediation steps that have been implemented to reduce waterborne HAIs.
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Affiliation(s)
- Margaret M Williams
- Division of Healthcare Quality Promotion, Centers for Disease Control and Prevention, Atlanta, GA, USA.
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23
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Richey LE, Bahadorani J, Mushatt D. Endovascular Mycobacterium abscessus infection in a heart transplant recipient: a case report and review of the literature. Transpl Infect Dis 2012; 15:208-13. [PMID: 23176090 DOI: 10.1111/tid.12024] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2012] [Revised: 07/10/2012] [Accepted: 07/24/2012] [Indexed: 11/28/2022]
Abstract
Nontuberculous mycobacteria are ubiquitous in the environment. Although rarely a cause of infection in immunocompetent individuals, increased risk and severity of infection are seen in patients who are immunocompromised, such as those with solid organ transplants. In this report, we describe the first case of disseminated endovascular Mycobacterium abscessus in a heart transplant recipient. A review of the literature regarding this infection in heart transplant recipients and its therapeutic options and concerns are summarized.
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Affiliation(s)
- L E Richey
- Adult Infectious Disease Section, Tulane University Medical Center, New Orleans, Louisiana 70112-2699, USA.
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Biggs H, Chudgar S, Pfeiffer C, Rice K, Zaas A, Wolfe C. Disseminated Mycobacterium immunogenum infection presenting with septic shock and skin lesions in a renal transplant recipient. Transpl Infect Dis 2012; 14:415-21. [DOI: 10.1111/j.1399-3062.2012.00730.x] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2011] [Revised: 12/27/2011] [Accepted: 02/14/2012] [Indexed: 12/17/2022]
Affiliation(s)
- H.M. Biggs
- Division of Infectious Diseases; Department of Medicine; Duke University Medical Center; Durham; North Carolina; USA
| | - S.M. Chudgar
- Hospital Medicine Program; Department of Medicine; Duke University Medical Center; Durham; North Carolina; USA
| | | | - K.R. Rice
- Department of Dermatology; Duke University Medical Center; Durham; North Carolina; USA
| | - A.K. Zaas
- Division of Infectious Diseases; Department of Medicine; Duke University Medical Center; Durham; North Carolina; USA
| | - C.R. Wolfe
- Division of Infectious Diseases; Department of Medicine; Duke University Medical Center; Durham; North Carolina; USA
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Abstract
Infections play a crucial role in organ transplantations as possible complications. Viruses, bacteria, fungi and parasites are potential agents. The relevance of individual diseases depends on the organ transplanted. Morphology of the inflammatory reaction is given by the agent involved, but often several reactions can be caused by the same agent and different agents can also lead to the same reaction. Histology therefore provides concrete identification of the causal agent only in some cases, such that additional microbiological diagnostics are necessary. Results from these investigations should be transferred to the pathologist to distinguish between infection-associated changes and transplant rejection.
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Affiliation(s)
- D Theegarten
- Institut für Pathologie und Neuropathologie, Universitätsklinikum Essen, Hufelandstr. 55, 45147, Essen, Deutschland.
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Affiliation(s)
- Karen D. Sims
- Discovery Medicine, Virology, Bristol-Myers Squibb, PO Box 5400, Princeton, NJ 08543-5400, USA
| | - Emily A. Blumberg
- Division of Infectious Diseases, University of Pennsylvania Medical Center, University of Pennsylvania School of Medicine, 3 Silverstein Pavilion, Suite E, 3400 Spruce Street, Philadelphia, PA 19104, USA
- Corresponding author.
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Abstract
Nonneoplastic mucocutaneous lesions are frequent in organ transplant recipients. Many of them are caused by a direct toxicity of immunosuppressive drugs, in particular glucocorticoids and cyclosporine. The effects of these agents are dose- and time-dependent. Glucocorticoids can cause acne, Cushingoid appearance, irregular purpuric areas, friable skin, and wide and violaceous stripes. Cyclosporine can cause hypertrichosis, pilosebaceous lesions, and gum hypertrophy. Patients with esthetic changes may show poor adherence to treatment with these immunosuppressive agents that may lead to progressive graft dysfunction. Apart from this direct toxicity, vigorous immunosuppression may render the transplant recipients more susceptible to mucocutaneous infections. Fungal infection, viral warts, and bacterial folliculitis are the most frequent types of mucocutaneous infection. Some fungal infections, such as oral candidiasis and pityriasis versicolor, are relatively trivial, but other mycotic infections can cause severe or disfigurating lesions. Among viral infections, warts and condylomata caused by human papilloma virus are frequent and may favor the development of nonmelanoma skin cancer. Bacterial infections are usually trivial in the early period after transplantation, being represented almost exclusively by folliculitis. However, subcutaneous infections may cause a necrotizing fasciculitis which is a life-threatening disorder, usually sustained by polymicrobial pathogens.
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Affiliation(s)
- Claudio Ponticelli
- Division of Nephrology, Istituto Scientifico Humanitas, Rozzano, Milan, Italy.
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Piersimoni C. Nontuberculous mycobacteria infection in solid organ transplant recipients. Eur J Clin Microbiol Infect Dis 2011; 31:397-403. [DOI: 10.1007/s10096-011-1329-4] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2011] [Accepted: 06/20/2011] [Indexed: 11/29/2022]
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Abstract
BACKGROUND Mycobacterium abscessus is a ubiquitous, rapidly growing mycobacterium that colonizes organic surfaces. It is a potential pathogen, especially in immunosuppressed patients, including transplant recipients in whom disease can range from localized cutaneous lesions to disseminated infections. The purpose of this study was to describe the 12-year impact from January 1997 to December 2009 of M. abscessus infection among solid organ and bone marrow transplantations performed in adults and children. METHODS Information was obtained from the database of our Microbiology Department concerning samples, culture methods, and in vitro susceptibility testing. Isolates were classified as contaminants (C), colonization (CL), or disease (D) following standard criteria. We reviewed the medical records of affected subjects. RESULTS M abscessus was isolated in 76 patients (28 C, 18 CL, and 30 D), including 11 recipients, namely 8 (73%) classified as disease displaying 1 bone marrow case and solid organ cases--4 (50%) pulmonary (2 after cystic fibrosis), 2 renal, and 1 heart transplant patients. All were adults. The localization of infection showed 2 disseminated cases, both of whom shows cutaneous primary lesions, and 6 localized in 3 cases cutaneous and in 3, respiratory. CONCLUSION Diseases caused by M abscessus have increased in the last 5 years, possibly due to the greater number of transplants and the more focused search for the lesions. Most isolates were from lung cases, especially those with infections prior to transplantation. Respiratory and cutaneous samples were predominant, with skin lesions being an important site of primary symptom previous to dissemination of infection. Although the optimal regimen remains undefined, a favorable outcome depended mainly on a rapid diagnosis and inception of treatment following susceptibility test results.
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Affiliation(s)
- P Morales
- Pulmonary Transplant Unit, Microbiology Department, U.H. La Fe, Valencia, Spain.
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Successful Treatment of Refractory Disseminated Mycobacterium abscessus Infection Using Interferon Gamma. INFECTIOUS DISEASES IN CLINICAL PRACTICE 2011. [DOI: 10.1097/ipc.0b013e3181f744bb] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Successful Tigecycline Combination Therapy for Mycobacterium abscessus Infection of a Total Hip Arthroplasty. INFECTIOUS DISEASES IN CLINICAL PRACTICE 2010. [DOI: 10.1097/ipc.0b013e3181d04a09] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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