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Cao H, Chen Y, Ge L, Kwong JSW, Lai H, Hu F, Zhang R, Zhao H, Hu L, He R, Zheng W, Zhang J. An umbrella review of the diagnostic value of next-generation sequencing in infectious diseases. Int J Clin Pharm 2024:10.1007/s11096-024-01704-2. [PMID: 38570474 DOI: 10.1007/s11096-024-01704-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Accepted: 01/18/2024] [Indexed: 04/05/2024]
Abstract
BACKGROUND An increasing number of systematic reviews (SRs) have evaluated the diagnostic values of next-generation sequencing (NGS) in infectious diseases (IDs). AIM This umbrella analysis aimed to assess the potential risk of bias in existing SRs and to summarize the published diagnostic values of NGS in different IDs. METHOD We searched PubMed, Embase, and the Cochrane Library until September 2023 for SRs assessing the diagnostic validity of NGS for IDs. Two investigators independently determined review eligibility, extracted data, and evaluated reporting quality, risk of bias, methodological quality, and evidence certainty in the included SRs. RESULTS Eleven SRs were analyzed. Most SRs exhibited a moderate level of reporting quality, while a serious risk of bias was observed in all SRs. The diagnostic performance of NGS in detecting pneumocystis pneumonia and periprosthetic/prosthetic joint infection was notably robust, showing excellent sensitivity (pneumocystis pneumonia: 0.96, 95% CI 0.90-0.99, very low certainty; periprosthetic/prosthetic joint infection: 0.93, 95% CI 0.83-0.97, very low certainty) and specificity (pneumocystis pneumonia: 0.96, 95% CI 0.92-0.98, very low certainty; periprosthetic/prosthetic joint infection: 0.95, 95% CI 0.92-0.97, very low certainty). NGS exhibited high specificity for central nervous system infection, bacterial meningoencephalitis, and tuberculous meningitis. The sensitivity to these infectious diseases was moderate. NGS demonstrated moderate sensitivity and specificity for multiple infections and pulmonary infections. CONCLUSION This umbrella analysis indicates that NGS is a promising technique for diagnosing pneumocystis pneumonia and periprosthetic/prosthetic joint infection with excellent sensitivity and specificity. More high-quality original research and SRs are needed to verify the current findings.
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Affiliation(s)
- Hong Cao
- School of Pharmaceutical Sciences, Guizhou University, 2708 South of Huaxi Avenue Road, Guiyang, Guizhou Province, China
- Department of Pharmacy, Guizhou Provincial People's Hospital, No.83 Zhongshandong Road, Guiyang, Guizhou Province, China
| | - Yan Chen
- School of Pharmaceutical Sciences, Guizhou University, 2708 South of Huaxi Avenue Road, Guiyang, Guizhou Province, China
- Department of Pharmacy, Guizhou Provincial People's Hospital, No.83 Zhongshandong Road, Guiyang, Guizhou Province, China
| | - Long Ge
- Evidence-Based Social Science Research Center, School of Public Health, Lanzhou University, Lanzhou, China
- Key Laboratory of Evidence Based Medicine and Knowledge Translation of Gansu Province, No. 199, Donggang West Road, Chengguan District, Lanzhou City, Gansu Province, China
| | - Joey Sum-Wing Kwong
- Global Health Nursing, Graduate School of Nursing Science, St. Luke's International University, 10-1 Akashi-Cho, Chuo-Ku, Tokyo, 104-0044, Japan
| | - Honghao Lai
- Evidence-Based Social Science Research Center, School of Public Health, Lanzhou University, Lanzhou, China
- Key Laboratory of Evidence Based Medicine and Knowledge Translation of Gansu Province, No. 199, Donggang West Road, Chengguan District, Lanzhou City, Gansu Province, China
| | - Fangfang Hu
- Department of Laboratory, Guizhou Provincial People's Hospital, No.83 Zhongshandong Road, Guiyang, 550002, Guizhou Province, China
| | - Rui Zhang
- Department of Pharmacy, Guizhou Provincial People's Hospital, No.83 Zhongshandong Road, Guiyang, Guizhou Province, China
| | - Huaye Zhao
- Department of Pharmacy, Guizhou Provincial People's Hospital, No.83 Zhongshandong Road, Guiyang, Guizhou Province, China
| | - Linfang Hu
- Department of Pharmacy, Guizhou Provincial People's Hospital, No.83 Zhongshandong Road, Guiyang, Guizhou Province, China
| | - Rui He
- Experimental Cancer Medicine, Department of Laboratory Medicine, Karolinska Institute, Room 601, Novum PI 6, Hälsovägen 7, Huddinge, 14157, Stockholm, Sweden
| | - Wenyi Zheng
- Experimental Cancer Medicine, Department of Laboratory Medicine, Karolinska Institute, Room 601, Novum PI 6, Hälsovägen 7, Huddinge, 14157, Stockholm, Sweden
| | - Jiaxing Zhang
- Department of Pharmacy, Guizhou Provincial People's Hospital, No.83 Zhongshandong Road, Guiyang, Guizhou Province, China.
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Pedemonte-Parramón G, Reynaga E, Molinos S, López-Pérez V, Hernández-Hermoso JA. Acute Haematogenous Revision Total Knee Arthroplasty Infection by Streptococcus canis Treated by Debridement, Antibiotics, and Implant Retention: A Case Report. Cureus 2024; 16:e58247. [PMID: 38745789 PMCID: PMC11093410 DOI: 10.7759/cureus.58247] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/13/2024] [Indexed: 05/16/2024] Open
Abstract
Prosthetic joint infections (PJIs) are one of the most feared complications by orthopaedic surgeons. Haematogenous PJI represents an important part of PJI cases. Streptococcus canis is an extremely rare cause of haematogenous PJI and its medical and surgical treatment and prognosis are not well established. We present a 79-year-old female patient who had a revision total knee arthroplasty (rTKA) surgery three years before. She was admitted to the hospital referring to three days of knee pain, restricted range of motion, and fever. Blood tests demonstrated leukocyte and C-reactive protein elevation. Joint fluid aspiration showed elevated white blood cell count with a high neutrophil differential and its conventional culture was positive for Streptococcus canis. She did not have pets but she took care of her daughter's dog. An acute haematogenous infection of the rTKA was diagnosed and treated with debridement, antibiotics (eight weeks of IV ceftriaxone), and implant retention (DAIR). After one year, the patient remains clinically asymptomatic without changes on X-rays and with normal serum levels of inflammatory blood markers. Streptococcus canis has to be kept in mind as a possible cause of haematogenous TKA infection in patients who have contact with domestic pets and patients should be asked for this contact. We recommend DAIR as a viable treatment option for this type of infection, which may show excellent results.
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Affiliation(s)
- Gloria Pedemonte-Parramón
- Department of Orthopaedic Surgery and Traumatology, Hospital Universitari Germans Trias i Pujol, Badalona, ESP
| | - Esteban Reynaga
- Department of Infectious Diseases, Hospital Universitari Germans Trias i Pujol, Badalona, ESP
| | - Sònia Molinos
- Department of Microbiology, Hospital Universitari Germans Trias i Pujol, Badalona, ESP
| | - Vicente López-Pérez
- Department of Orthopaedic Surgery and Traumatology, Hospital Universitari Germans Trias i Pujol, Badalona, ESP
| | - José A Hernández-Hermoso
- Department of Orthopaedic Surgery and Traumatology, Hospital Universitari Germans Trias i Pujol, Badalona, ESP
- Department of Surgery, Faculty of Medicine, Universitat Autònoma de Barcelona, Bellaterra, ESP
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Kuechly H, Gupta R, Kurkowski S, Crawford Z, Le T. Culture Negative Pasteurella multocida Confirmed Prosthetic Hip Infection using Next-generation Sequencing. J Orthop Case Rep 2024; 14:50-54. [PMID: 38560323 PMCID: PMC10976524 DOI: 10.13107/jocr.2024.v14.i03.4284] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Revised: 01/05/2024] [Indexed: 04/04/2024] Open
Abstract
Introduction Prosthetic joint infections (PJIs) are a dreaded complication of joint arthroplasty. Zoonotic organisms such as Pasteurella multocida (PM) rarely cause PJIs. Still, these organisms can be challenging to treat due to a low suspicion index and inadequate growth on culture. Next-generation sequencing (NGS) can be used to identify organisms in culture-negative PJIs. This is the first reported case of a PM positive total hip arthroplasty PJI using NGS. Case Report We report the case of a 70-year-old male presenting with a periprosthetic hip infection. PM was identified in high relative abundance on NGS and grew in culture. Subsequent intraoperative samples were culture negative for Pasteurella, but NGS demonstrated continued presence of Pasteurella. Conclusion PM is a rare case of PJI, but a high index of suspicion must be maintained in the appropriate clinical context. NGS is a vital tool for the identification of culture-negative organisms like PM.
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Affiliation(s)
- Henry Kuechly
- Department of Orthopedic Surgery, University of Cincinnati College of Medicine, Cincinnati, Ohio
| | - Rajul Gupta
- Department of Orthopedic Surgery, University of Cincinnati College of Medicine, Cincinnati, Ohio
| | - Sarah Kurkowski
- Department of Orthopedic Surgery, University of Cincinnati College of Medicine, Cincinnati, Ohio
| | - Zachary Crawford
- Department of Orthopedic Surgery, University of Cincinnati College of Medicine, Cincinnati, Ohio
| | - Toan Le
- Department of Orthopedic Surgery, University of Cincinnati College of Medicine, Cincinnati, Ohio
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Vecilla DF, Grande JR, Valcárcel NF, Toboso MCN, Gutiérrez MJU, Muro FEC, Ocampo-Sosa A, Díaz de Tuesta Del Arco JL. Two episodes of bacteremia of zoonotic origin caused by different Streptococcus canis isolates in the same patient within a time span of 1 year. Eur J Clin Microbiol Infect Dis 2024; 43:383-387. [PMID: 37996728 DOI: 10.1007/s10096-023-04718-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Accepted: 11/15/2023] [Indexed: 11/25/2023]
Abstract
Two episodes of bacteremia of cutaneous origin in a female patient were caused by two unrelated Streptococcus canis isolates within 1-year interval between the two infection episodes. The most likelihood transmission route in both episodes was a dog pet that habitually licked patient´s legs. Isolates were characterised by antimicrobial susceptibility test and whole genome sequencing. They belonged to sequence type (ST) 40 and 43, respectively. The ST40 isolate harboured antimicrobial resistance genes aadE, ermB and tetO, displaying resistance to erythromycin, clindamycin and tetracyclines, while ST43 isolate did not presented any known antimicrobial resistance determinant and was susceptible to all antibiotics tested. S. canis infections are rare in human; however, attention is needed for patients at risk with companion animals.
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Affiliation(s)
- Domingo Fernández Vecilla
- Clinical Microbiology and Parasitology Department, Basurto University Hospital, Avenida Montevideo 18, 48013, Bilbao, Vizcaya, Spain
- Biocruces Bizkaia Health Research Institute, Cruces Plaza, 48903, Barakaldo, Vizcaya, Spain
| | - Jorge Rodríguez Grande
- Microbiology Service, University Hospital Marqués de Valdecilla, Health Research Institute Marqués de Valdecilla (IDIVAL), Av. Valdecilla S/N, 39008, Santander, Cantabria, Spain
| | - Nuria Fraile Valcárcel
- Microbiology Service, University Hospital Marqués de Valdecilla, Health Research Institute Marqués de Valdecilla (IDIVAL), Av. Valdecilla S/N, 39008, Santander, Cantabria, Spain
| | - María Carmen Nieto Toboso
- Clinical Microbiology and Parasitology Department, Basurto University Hospital, Avenida Montevideo 18, 48013, Bilbao, Vizcaya, Spain
- Biocruces Bizkaia Health Research Institute, Cruces Plaza, 48903, Barakaldo, Vizcaya, Spain
| | - Mikel Joseba Urrutikoetxea Gutiérrez
- Clinical Microbiology and Parasitology Department, Basurto University Hospital, Avenida Montevideo 18, 48013, Bilbao, Vizcaya, Spain
- Biocruces Bizkaia Health Research Institute, Cruces Plaza, 48903, Barakaldo, Vizcaya, Spain
| | - Felicitas Elena Calvo Muro
- Clinical Microbiology and Parasitology Department, Basurto University Hospital, Avenida Montevideo 18, 48013, Bilbao, Vizcaya, Spain
- Biocruces Bizkaia Health Research Institute, Cruces Plaza, 48903, Barakaldo, Vizcaya, Spain
| | - Alain Ocampo-Sosa
- Microbiology Service, University Hospital Marqués de Valdecilla, Health Research Institute Marqués de Valdecilla (IDIVAL), Av. Valdecilla S/N, 39008, Santander, Cantabria, Spain.
- CIBERINFEC, Health Institute Carlos III, Monforte de Lemos 5, 28029, Madrid, Spain.
| | - José Luis Díaz de Tuesta Del Arco
- Clinical Microbiology and Parasitology Department, Basurto University Hospital, Avenida Montevideo 18, 48013, Bilbao, Vizcaya, Spain
- Biocruces Bizkaia Health Research Institute, Cruces Plaza, 48903, Barakaldo, Vizcaya, Spain
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5
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Alrayes MM, Sukeik MT. Emerging Technologies in Diagnosing Periprosthetic Joint Infections. Indian J Orthop 2023; 57:643-652. [PMID: 37128562 PMCID: PMC10147868 DOI: 10.1007/s43465-023-00891-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/04/2023] [Accepted: 04/04/2023] [Indexed: 05/03/2023]
Abstract
Periprosthetic joint infection (PJI) is a well-known serious complication following joint replacement surgeries and is responsible for high failure rates of implanted devices. Any delay in the diagnosis can compromise treatment success, putting a huge burden on the patients' wellness and healthcare systems. Diagnosing PJIs is quite complex as there is still no gold standard test to reach the definitive diagnosis in a timely manner. A number of laboratory tests and radiological imaging inventions have evolved in the past few years, requiring consistent updates of the available guidelines to keep up with the latest advances in the field. This article highlights the recent advances in diagnosing PJIs and discusses their validity for use in clinical practice.
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Affiliation(s)
- Majd M. Alrayes
- Department of Trauma & Orthopedics, Dammam Medical Complex, Dammam, 32210 Saudi Arabia
| | - Mohamed T. Sukeik
- Department of Trauma & Orthopaedics, Dr. Sulaiman Al-Habib Hospital–Al Khobar, Al Khobar, 34423 Saudi Arabia
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Tarabichi S, Chen AF, Higuera CA, Parvizi J, Polkowski GG. 2022 American Association of Hip and Knee Surgeons Symposium: Periprosthetic Joint Infection. J Arthroplasty 2023:S0883-5403(23)00065-7. [PMID: 36738863 DOI: 10.1016/j.arth.2023.01.045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Revised: 01/23/2023] [Accepted: 01/24/2023] [Indexed: 02/06/2023] Open
Abstract
Periprosthetic joint infection (PJI) is the leading cause of failure in patients undergoing total joint arthroplasty. This article is a brief summary of a symposium on PJI that was presented at the annual AAHKS meeting. It will provide an overview of current technqiues in the prevention, diagnosis, and management of PJI. It will also highlight emerging technologies in this setting.
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Affiliation(s)
- Saad Tarabichi
- Rothman Orthopaedic Institute at Thomas Jefferson University Hospital, Philadelphia, Pennsylvania
| | - Antonia F Chen
- Department of Orthopaedic Surgery, Brigham and Women's Hospital, Boston, Massachusetts
| | - Carlos A Higuera
- Levitetz Department of Orthopaedic Surgery, Cleveland Clinic Florida, Weston, Florida
| | - Javad Parvizi
- Rothman Orthopaedic Institute at Thomas Jefferson University Hospital, Philadelphia, Pennsylvania
| | - Gregory G Polkowski
- Department of Orthopaedic Surgery, Vanderbilt University Medical Center, Nashville, Tennessee
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7
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[Streptococcus canis as a cause of osteosynthesis material and myositis]. ENFERMEDADES INFECCIOSAS Y MICROBIOLOGIA CLINICA (ENGLISH ED.) 2023; 41:315-317. [PMID: 36710163 DOI: 10.1016/j.eimce.2022.09.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Accepted: 09/18/2022] [Indexed: 01/29/2023]
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8
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Tarabichi S, Goh GS, Zanna L, Qadiri QS, Baker CM, Gehrke T, Citak M, Parvizi J. Time to Positivity of Cultures Obtained for Periprosthetic Joint Infection. J Bone Joint Surg Am 2023; 105:107-112. [PMID: 36574630 DOI: 10.2106/jbjs.22.00766] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
BACKGROUND Despite its well-established limitations, culture remains the gold standard for microbial identification in periprosthetic joint infection (PJI). However, there are no benchmarks for the time to positivity (TTP) on culture for specific microorganisms. This study aimed to determine the TTP for pathogens commonly encountered in PJI. METHODS This retrospective, multicenter study reviewed prospectively maintained institutional PJI databases to identify patients who underwent hip or knee revision arthroplasty from 2017 to 2021 at 2 tertiary centers in the United States and Germany. Only patients who met the 2018 International Consensus Meeting (ICM) criteria for PJI and had a positive intraoperative culture were included. TTP on culture media was recorded for each sample taken intraoperatively. The median TTP was compared among different microbial species and different specimen types. Data are presented either as the mean and the standard deviation or as the median and the interquartile range (IQR). RESULTS A total of 536 ICM-positive patients with positive cultures were included. The mean number of positive cultures per patient was 3.9 ± 2.6. The median TTP, in days, for all positive cultures was 3.3 (IQR, 1.9 to 5.4). Overall, gram-negative organisms (TTP, 1.99 [1.1 to 4.1]; n = 225) grew significantly faster on culture compared with gram-positive organisms (TTP, 3.33 [1.9 to 5.8]; n = 1,774). Methicillin-resistant Staphylococcus aureus (TTP, 1.42 [1.0 to 2.8]; n = 85) had the fastest TTP, followed by gram-negative rods (TTP, 1.92 [1.0 to 3.9]; n = 163), methicillin-sensitive Staphylococcus aureus (TTP, 1.95 [1.1 to 3.3] n = 393), Streptococcus species (TTP, 2.92 [1.2 to 4.3]; n = 230), Staphylococcus epidermidis (TTP, 4.20 [2.4 to 5.5]; n = 555), Candida species (TTP, 5.30 [3.1 to 10]; n = 63), and Cutibacterium acnes (TTP, 6.97 [5.9 to 8.2]; n = 197). When evaluating the median TTP according to specimen type, synovial fluid (TTP, 1.97 [1.1 to 3.1]; n = 112) exhibited the shortest TTP, followed by soft tissue (TTP, 3.17 [1.4 to 5.3]; n = 1,199) and bone (TTP, 4.16 [2.3 to 5.9]; n = 782). CONCLUSIONS To our knowledge, this is the first study to examine the TTP of common microorganisms that are known to cause PJI. Increased awareness of these data may help to guide the selection of appropriate antimicrobial therapy and to predict treatment outcomes in the future. Nonetheless, additional studies with larger cohorts are needed to validate these benchmarks. LEVEL OF EVIDENCE Diagnostic Level IV . See Instructions for Authors for a complete description of levels of evidence.
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Affiliation(s)
- Saad Tarabichi
- Rothman Orthopaedic Institute, Thomas Jefferson University Hospital, Philadelphia, Pennsylvania
| | - Graham S Goh
- Rothman Orthopaedic Institute, Thomas Jefferson University Hospital, Philadelphia, Pennsylvania
| | - Luigi Zanna
- Traumatology and General Orthopedics Department, Careggi University Hospital, Florence, Italy.,Department of Orthopaedic Surgery, Helios ENDO-Klinik Hamburg, Hamburg, Germany
| | - Qudratullah S Qadiri
- Rothman Orthopaedic Institute, Thomas Jefferson University Hospital, Philadelphia, Pennsylvania
| | - Colin M Baker
- Rothman Orthopaedic Institute, Thomas Jefferson University Hospital, Philadelphia, Pennsylvania
| | - Thorsten Gehrke
- Department of Orthopaedic Surgery, Helios ENDO-Klinik Hamburg, Hamburg, Germany
| | - Mustafa Citak
- Department of Orthopaedic Surgery, Helios ENDO-Klinik Hamburg, Hamburg, Germany
| | - Javad Parvizi
- Rothman Orthopaedic Institute, Thomas Jefferson University Hospital, Philadelphia, Pennsylvania
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Molecular Diagnosis of Osteoarticular Implant-Associated Infection: Available Techniques and How We Can Use Them. PROSTHESIS 2022. [DOI: 10.3390/prosthesis5010001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Despite recent advances during the last few years, microbiological diagnosis of prosthetic joint infections remains a challenge. Molecular biology techniques have been developed to try to overcome this problem, and recently, many of them have become available for many laboratories. Some of them, especially commercial multiplex PCR-based assays and universal 16S rDNA homemade PCR assays, are now available in many laboratories. Moreover, new technologies have appeared, especially metagenomics and next-generation sequencing. These techniques have demonstrated their potential in many studies but appear to be experimental at present. A few studies have evaluated the possible use of these methods in the clinical routine, and a review of the critical aspects for the selection of a molecular method (accuracy, complexity, cost) was performed. Finally, a proposal for a protocol that includes molecular biology techniques was made according to the literature published in this field. In conclusion, molecular biology techniques are ready to be used in the clinical routine of a microbiology laboratory, but their use must be carried out in accordance with the many special characteristics of each laboratory. In all cases, the interpretation of the results must be conducted by a multidisciplinary team with experience in the management of these patients.
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Fernández Vecilla D, Díez Renovales F, Díaz de Tuesta del Arco JL. Streptococcus canis como agente causal de infección de material de osteosíntesis y miositis. Enferm Infecc Microbiol Clin 2022. [DOI: 10.1016/j.eimc.2022.09.002] [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]
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Kullar R, Chisari E, Snyder J, Cooper C, Parvizi J, Sniffen J. Next-Generation Sequencing Supports Targeted Antibiotic Treatment for Culture Negative Orthopedic Infections. Clin Infect Dis 2022; 76:359-364. [PMID: 36074890 PMCID: PMC9839185 DOI: 10.1093/cid/ciac733] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Revised: 08/20/2022] [Accepted: 09/01/2022] [Indexed: 01/19/2023] Open
Abstract
The isolation of an infective pathogen can be challenging in some patients with active, clinically apparent infectious diseases. Despite efforts in the microbiology lab to improve the sensitivity of culture in orthopedic implant-associated infections, the clinically relevant information often falls short of expectations. The management of peri-prosthetic joint infections (PJI) provides an excellent example of the use and benefits of newer diagnostic technologies to supplement the often-inadequate yield of traditional culture methods as a substantial percentage of orthopedic infections are culture-negative. Next-generation sequencing (NGS) has the potential to improve upon this yield. Bringing molecular diagnostics into practice can provide critical information about the nature of the infective organisms and allow targeted therapy in these otherwise challenging situations. This review article describes the current state of knowledge related to the use and potential of NGS to diagnose infections, particularly in the setting of PJIs.
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Affiliation(s)
- Ravina Kullar
- Expert Stewardship, Inc. , Newport Beach, California , USA
| | - Emanuele Chisari
- Antimicrobial Stewardship & Infection Prevention, Rothman Orthopaedic Institute, Thomas Jefferson University , Philadelphia, Pennsylvania , USA
| | - James Snyder
- Department of Pathology and Laboratory Medicine, University of Louisville School of Medicine and Hospital , Louisville, Kentucky , USA
| | - Christopher Cooper
- Department of Internal Medicine, Infectious Diseases and Tropical Medicine Section, University of South Florida , Tampa, Florida , USA
| | - Javad Parvizi
- Antimicrobial Stewardship & Infection Prevention, Rothman Orthopaedic Institute, Thomas Jefferson University , Philadelphia, Pennsylvania , USA
| | - Jason Sniffen
- Department of Internal Medicine, Infectious Diseases and Tropical Medicine Section, University of South Florida , Tampa, Florida , USA
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12
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Goh GS, Parvizi J. Diagnosis and Treatment of Culture-Negative Periprosthetic Joint Infection. J Arthroplasty 2022; 37:1488-1493. [PMID: 35101593 DOI: 10.1016/j.arth.2022.01.061] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Accepted: 01/18/2022] [Indexed: 02/02/2023] Open
Abstract
Identification of the causative organism(s) in periprosthetic joint infection (PJI) is a challenging task. The shortcomings of traditional cultures have been emphasized in recent literature, culminating in a clinical entity known as "culture-negative PJI." Amidst the growing burden of biofilm infections that are inherently difficult to culture, the field of clinical microbiology has seen a paradigm shift from culture-based to molecular-based methods. These novel techniques hold much promise in the demystification of culture-negative PJI and revolutionization of the microbiology laboratory. This article outlines the clinical implications of culture-negative PJI, common causes of this diagnostic conundrum, established strategies to improve culture yield, and newer molecular techniques to detect infectious organisms.
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Affiliation(s)
- Graham S Goh
- Rothman Orthopaedic Institute at Thomas Jefferson University, Philadelphia, PA
| | - Javad Parvizi
- Rothman Orthopaedic Institute at Thomas Jefferson University, Philadelphia, PA
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13
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Tarabichi S, Chisari E, Van Nest DS, Krueger CA, Parvizi J. Surgical Helmets Used During Total Joint Arthroplasty Harbor Common Pathogens: A Cautionary Note. J Arthroplasty 2022; 37:1636-1639. [PMID: 35341923 DOI: 10.1016/j.arth.2022.03.066] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Revised: 03/15/2022] [Accepted: 03/19/2022] [Indexed: 02/02/2023] Open
Abstract
BACKGROUND The use of personal-protection surgical helmet/hood systems is now a part of the standard surgical attire during arthroplasty in North America. There are no protocols for the disinfection of these helmets. METHODS This is a prospective, single-center, observational study. Helmets worn by 44 members of the surgical team and foreheads of 44 corresponding surgical personnel were swabbed at three distinct time points. In addition, 16 helmets were treated with hypochlorite spray to determine if pathogens could be eliminated. Swabs obtained were processed for culture and next-generation sequencing (NGS). RESULTS Of the 132 helmet samples, 97 (73%) yielded bacteria on culture and 94 (71%) had evidence of bacterial-deoxyribonucleic acid (DNA) on NGS. Of the swabs sent for bacterial identification at the three time points, at least one from each helmet was positive for a pathogen(s). Of the 132 forehead samples, 124 (93%) yielded bacteria on culture and 103 (78%) had evidence of bacterial-DNA on NGS. The most commonly identified organism from helmets was Cutibacterium acnes (86/132) on NGS and Staphylococcus epidermidis (47/132) on culture. The most commonly identified organism from the foreheads of surgical personnel was Cutibacterium acnes (100/132) on NGS and Staphylococcus epidermidis (70/132) on culture. Sanitization of helmets was totally effective; no swabs taken the following morning for culture and NGS identified any bacteria. CONCLUSION This study demonstrates that surgical helmets worn during orthopedic procedures are contaminated with common pathogens that can potentially cause surgical site infections. The findings of this study should at the minimum compel us to develop protocols for the disinfection of these helmets.
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Affiliation(s)
- Saad Tarabichi
- Rothman Orthopaedic Institute at Thomas Jefferson University, Philadelphia, PA
| | - Emanuele Chisari
- Rothman Orthopaedic Institute at Thomas Jefferson University, Philadelphia, PA
| | - Duncan S Van Nest
- Rothman Orthopaedic Institute at Thomas Jefferson University, Philadelphia, PA
| | - Chad A Krueger
- Rothman Orthopaedic Institute at Thomas Jefferson University, Philadelphia, PA
| | - Javad Parvizi
- Rothman Orthopaedic Institute at Thomas Jefferson University, Philadelphia, PA
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Van Tol AL, Tang B, Mackie ID. A case of Streptococcus canis bacteremia, osteomyelitis, sacroiliitis, myositis, and abscess. BMC Infect Dis 2022; 22:621. [PMID: 35840925 PMCID: PMC9287961 DOI: 10.1186/s12879-022-07580-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Accepted: 06/30/2022] [Indexed: 12/03/2022] Open
Abstract
Background Streptococcus canis is a group G beta-hemolytic Streptococcus species which normally resides on the skin and mucosal surfaces of dogs. Although it rarely causes infection in humans, our case and review of relevant literature demonstrate that this multi-host pathogen may be responsible for metastatic infection. We present an appropriate management strategy in such cases.
Case presentation A previously healthy 26-year-old male presented to the emergency department with a 2-day history of erythema, pain, and swelling of the left ankle and foot, consistent with acute cellulitis. The patient was initially discharged home with a plan to complete a course of IV cefazolin as an outpatient, but later recalled after two sets of blood cultures grew gram positive cocci. Blood cultures speciated as Streptococcus canis. This was performed by identifying beta hemolytic strep on blood agar, then typed as Lancefield group G, followed by MALDI-TOF which distinguished S. canis. History was unremarkable except for a 2-week history of lower back pain precipitated by a wrestling injury. There was no canine bite or scratch wound, although the patient lives with a dog. CT spine was obtained which demonstrated right piriformis myositis and S1 osteomyelitis. MRI additionally demonstrated right erector spinae myositis, right sacroiliitis, and multiple collections in the right posterior paraspinal soft tissues. Transthoracic echocardiogram did not demonstrate valvular vegetations. The S. canis isolate was pan-susceptible and the patient was ultimately discharged home and completed a 8-week course of IV penicillin G. After completion of therapy, his symptoms, repeat imaging, and biochemical markers suggested resolution of infection on follow-up. Conclusions We suggest that management of S. canis bacteremia should involve consideration of screening for metastatic infection and infectious diseases consultation. However, despite its potential for systemic involvement, S. canis is often susceptible to narrow spectrum antibiotics, and may be treated with penicillins. S. canis does not require a clear portal of entry to cause infection When S. canis infection is identified, screening for sites of metastatic infection should be considered S. canis infection is typically susceptible to narrow-spectrum antibiotics
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Affiliation(s)
- A L Van Tol
- Department of Family Medicine, Queen's University, Kingston, ON, Canada.
| | - B Tang
- Division of General Internal Medicine, University of Toronto, Toronto, ON, Canada
| | - I D Mackie
- Division of General Internal Medicine, Vancouver General Hospital and University of British Columbia, Vancouver, BC, Canada
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15
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Streptococcus canis, the underdog of the genus. Vet Microbiol 2022; 273:109524. [DOI: 10.1016/j.vetmic.2022.109524] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Revised: 06/29/2022] [Accepted: 07/28/2022] [Indexed: 11/23/2022]
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Goswami K, Tipton C, Clarkson S, Chang G, Tan TL, Fram B, Chisari E, Sobol K, Natoli RM, Conway JD, Altman GT, Parvizi J, Krieg JC. Fracture-Associated Microbiome and Persistent Nonunion: Next-Generation Sequencing Reveals New Findings. J Orthop Trauma 2022; 36:S40-S46. [PMID: 35061650 DOI: 10.1097/bot.0000000000002305] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 11/08/2021] [Indexed: 02/02/2023]
Abstract
INTRODUCTION Fracture nonunion remains a devastating complication and may occur for several reasons, though the microbial contribution remains poorly estimated. Next-generation sequencing (NGS) techniques, including 16S rRNA gene profiling, are capable of rapid bacterial detection within clinical specimens. Nonunion cases may harbor microbes that escape detection by conventional culture methods that contribute to persistence. Our aim was to investigate the application of NGS pathogen detection to nonunion diagnosis. METHODS In this prospective multicenter study, samples were collected from 54 patients undergoing open surgical intervention for preexisting long-bone nonunion (n = 37) and control patients undergoing fixation of an acute fracture (n = 17). Intraoperative specimens were sent for dual culture and 16S rRNA gene-based microbial profiling. Patients were followed for evidence of fracture healing, whereas patients not healed at follow-up were considered persistent nonunion. Comparative analyses aimed to determine whether microbial NGS diagnostics could discriminate between nounions that healed during follow-up versus persistent nonunion. RESULTS Positive NGS detection was significantly correlated with persistent nonunion, positive in 77% more cases than traditional culture. Nonunion cases were observed to have significantly increased diversity and altered bacterial profiles from control cases. DISCUSSION NGS seems to be a useful adjunct in identification of organisms that may contribute to nonunion. Our findings suggest that the fracture-associated microbiome may be a significant risk factor for persistent nonunion. Ongoing work aims to determine the clinical implications of isolated organisms detected by sequencing and to identify robust microbial predictors of nonunion outcomes. LEVEL OF EVIDENCE Diagnostic Level II. See Instructions for Authors for a complete description of levels of evidence.
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Affiliation(s)
- Karan Goswami
- Rothman Orthopaedic Institute at Thomas Jefferson University, Philadelphia, PA
| | - Craig Tipton
- Department of Biological Sciences, Texas Tech University, Lubbock, TX
- RTL Genomics, MicroGenDX, Lubbock, TX
| | - Samuel Clarkson
- Rothman Orthopaedic Institute at Thomas Jefferson University, Philadelphia, PA
| | - Gerard Chang
- Rothman Orthopaedic Institute at Thomas Jefferson University, Philadelphia, PA
| | - Timothy L Tan
- Rothman Orthopaedic Institute at Thomas Jefferson University, Philadelphia, PA
| | - Brianna Fram
- Rothman Orthopaedic Institute at Thomas Jefferson University, Philadelphia, PA
| | - Emanuele Chisari
- Rothman Orthopaedic Institute at Thomas Jefferson University, Philadelphia, PA
| | - Keenan Sobol
- Rothman Orthopaedic Institute at Thomas Jefferson University, Philadelphia, PA
| | - Roman M Natoli
- Department of Orthopaedic Surgery, Indiana University School of Medicine, Indianapolis, IN
| | - Janet D Conway
- International Center for Limb Lengthening, Rubin Institute for Advanced Orthopedics, Sinai Hospital of Baltimore, Baltimore, MD; and
| | - Gregory T Altman
- Department of Orthopaedic Surgery, Allegheny Health Network, Pittsburgh, PA
| | - Javad Parvizi
- Rothman Orthopaedic Institute at Thomas Jefferson University, Philadelphia, PA
| | - James C Krieg
- Rothman Orthopaedic Institute at Thomas Jefferson University, Philadelphia, PA
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Tang Y, Zhao D, Wang S, Yi Q, Xia Y, Geng B. Diagnostic Value of Next-Generation Sequencing in Periprosthetic Joint Infection: A Systematic Review. Orthop Surg 2021; 14:190-198. [PMID: 34935279 PMCID: PMC8867422 DOI: 10.1111/os.13191] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Revised: 11/11/2021] [Accepted: 11/19/2021] [Indexed: 01/03/2023] Open
Abstract
Next‐generation sequencing (NGS) has developed rapidly in the last decade and is emerging as a promising diagnostic tool for periprosthetic joint infection (PJI). However, its diagnostic value for PJI is still uncertain. This systematic review aimed to explore the diagnostic value of NGS for PJI and verify its accuracy for culture‐negative PJI patients. We conducted this systematic review in accordance with the Preferred Reporting Items for Systematic Reviews and Meta‐Analysis (PRISMA) guidelines. Medline, Embase, and Cochrane Library were searched to identify diagnostic technique studies evaluating the accuracy of NGS in the diagnosis of PJI. The diagnostic sensitivity, specificity, and positive and negative predictive values were estimated for each article. The detection rate of NGS for culture‐negative PJI patients or PJI patients with antibiotic administration history was also calculated. Of the 87 identified citations, nine studies met the inclusion criteria. The diagnostic sensitivities and specificities of NGS ranged from 63% to 96% and 73% to 100%, respectively. The positive and negative predictive values ranged from 71% to 100% and 74% to 95%, respectively. The detection rate of NGS for culture‐negative PJI patients in six studies was higher than 50% (range from 82% to 100%), while in three studies it was lower than 50% (range from 9% to 31%). Also, the detection rate of NGS for PJIs with antibiotic administration history ranged from 74.05% to 92.31%. In conclusion, this systematic review suggests that NGS may have the potential to be a new tool for the diagnosis of PJI and should be considered to be added to the portfolio of diagnostic procedures. Furthermore, NGS showed a favorable diagnostic accuracy for culture‐negative PJI patients or PJI patients with antibiotic administration history. However, due to the small sample sizes of studies and substantial heterogeneity among the included studies, more research is needed to confirm or disprove these findings.
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Affiliation(s)
- Yuchen Tang
- Department of Orthopaedics, Lanzhou University Second Hospital, Orthopaedic Key Laboratory of Gansu Province, Orthopaedic Clinical Research Center of Gansu Province, Lanzhou, China
| | - Dacheng Zhao
- Department of Orthopaedics, Lanzhou University Second Hospital, Orthopaedic Key Laboratory of Gansu Province, Orthopaedic Clinical Research Center of Gansu Province, Lanzhou, China
| | - Shenghong Wang
- Department of Orthopaedics, Lanzhou University Second Hospital, Orthopaedic Key Laboratory of Gansu Province, Orthopaedic Clinical Research Center of Gansu Province, Lanzhou, China
| | - Qiong Yi
- Department of Orthopaedics, Lanzhou University Second Hospital, Orthopaedic Key Laboratory of Gansu Province, Orthopaedic Clinical Research Center of Gansu Province, Lanzhou, China
| | - Yayi Xia
- Department of Orthopaedics, Lanzhou University Second Hospital, Orthopaedic Key Laboratory of Gansu Province, Orthopaedic Clinical Research Center of Gansu Province, Lanzhou, China
| | - Bin Geng
- Department of Orthopaedics, Lanzhou University Second Hospital, Orthopaedic Key Laboratory of Gansu Province, Orthopaedic Clinical Research Center of Gansu Province, Lanzhou, China
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Choi Y, Oda E, Waldman O, Sajda T, Beck C, Oh I. Next-Generation Sequencing for Pathogen Identification in Infected Foot Ulcers. FOOT & ANKLE ORTHOPAEDICS 2021; 6:24730114211026933. [PMID: 35097461 PMCID: PMC8702686 DOI: 10.1177/24730114211026933] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
Background: Accurate identification of primary pathogens in foot infections remains challenging due to the diverse microbiome. Conventional culture may show false-positive or false-negative growth, leading to ineffective postoperative antibiotic treatment. Next-generation sequencing (NGS) has been explored as an alternative to standard culture in orthopedic infections. NGS is highly sensitive and can detect an entire bacterial genome along with genes conferring antibiotic resistance in a given sample. We investigated the potential use of NGS for accurate identification and quantification of microbes in infected diabetic foot ulcer (DFU). We hypothesize that NGS will aid identification of dominant pathogen and provide a more complete profile of microorganisms in infected DFUs compared to the standard culture method. Methods: Data were prospectively collected from 30 infected DFU patients who underwent operative treatment by a fellowship-trained orthopedic foot and ankle surgeon from October 2018 to September 2019. The average age of the patient was 60.4 years. Operative procedures performed were irrigation and debridement (12), toe or ray amputation (13), calcanectomies (4), and below-the-knee amputation (1). Infected bone specimens were obtained intraoperatively and processed for standard culture and NGS. Concordance between the standard culture and NGS was assessed. Results: In 29 of 30 patients, pathogens were identified by both NGS and culture, with a concordance rate of 70%. In standard culture, Staphylococcus aureus (58.6%) was the most common pathogen, followed by coagulase-negative Staphylococcus (24.1%), Corynebacterium striatum (17.2%), and Enterococcus faecalis (17.2%). In NGS, Finegoldia magna (44.8%) was the most common microorganism followed by S. aureus (41.4%), and Anaerococcus vaginalis (24.1%). On average, NGS revealed 5.1 (range, 1-11) pathogens in a given sample, whereas culture revealed 2.6 (range, 1-6) pathogens. Conclusion: NGS is an emerging molecular diagnostic method of microbial identification in orthopedic infection. It frequently provides different profiles of microorganisms along with antibiotic-resistant gene information compared to conventional culture in polymicrobial foot infection. Clinical use of NGS for management of foot and ankle infections warrants further investigation. Level of Evidence: Level II, diagnostic study.
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Affiliation(s)
- Yoonjung Choi
- Department of Orthopaedics and Rehabilitation, University of Rochester Medical Center, Rochester, NY, USA
| | - Eimi Oda
- Department of Orthopaedics and Rehabilitation, University of Rochester Medical Center, Rochester, NY, USA
| | - Olivia Waldman
- Department of Orthopaedics and Rehabilitation, University of Rochester Medical Center, Rochester, NY, USA
- Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, Buffalo, NY, USA
| | - Thomas Sajda
- Department of Orthopaedics and Rehabilitation, University of Rochester Medical Center, Rochester, NY, USA
| | - Christopher Beck
- Department of Orthopaedics and Rehabilitation, University of Rochester Medical Center, Rochester, NY, USA
- Department of Biostatistics and Computational Biology, University of Rochester, Rochester, NY, USA
| | - Irvin Oh
- Department of Orthopaedics and Rehabilitation, University of Rochester Medical Center, Rochester, NY, USA
- Department of Orthopaedics and Rehabilitation, Yale School of Medicine, New Haven, CT, USA
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Indelli PF, Ghirardelli S, Violante B, Amanatullah DF. Next generation sequencing for pathogen detection in periprosthetic joint infections. EFORT Open Rev 2021; 6:236-244. [PMID: 34040801 PMCID: PMC8142595 DOI: 10.1302/2058-5241.6.200099] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
Periprosthetic joint infections (PJI) represent one of the most catastrophic complications following total joint arthroplasty (TJA). The lack of standardized diagnostic tests and protocols for PJI is a challenge for arthroplasty surgeons.Next generation sequencing (NGS) is an innovative diagnostic tool that can sequence microbial deoxyribonucleic acids (DNA) from a synovial fluid sample: all DNA present in a specimen is sequenced in parallel, generating millions of reads. It has been shown to be extremely useful in a culture-negative PJI setting.Metagenomic NGS (mNGS) allows for universal pathogen detection, regardless of microbe type, in a 24-48-hour timeframe: in its nanopore-base variation, mNGS also allows for antimicrobial resistance characterization.Cell-free DNA (cfDNA) NGS, characterized by lack of the cell lysis step, has a fast run-time (hours) and, together with a high sensitivity and specificity in microorganism isolation, may provide information on the presence of antimicrobial resistance genes.Metagenomics and cfDNA testing have reduced the time needed to detect infecting bacteria and represent very promising technologies for fast PJI diagnosis.NGS technologies are revolutionary methods that could disrupt the diagnostic paradigm of PJI, but a comprehensive collection of clinical evidence is still needed before they become widely used diagnostic tools. Cite this article: EFORT Open Rev 2021;6:236-244. DOI: 10.1302/2058-5241.6.200099.
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Affiliation(s)
- Pier F Indelli
- Department of Orthopaedic Surgery, Stanford University, Stanford, California, USA
| | | | | | - Derek F Amanatullah
- Department of Orthopaedic Surgery, Stanford University, Stanford, California, USA
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20
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Cook J, Holmes CJ, Wixtrom R, Newman MI, Pozner JN. Characterizing the Microbiome of the Contracted Breast Capsule Using Next Generation Sequencing. Aesthet Surg J 2021; 41:440-447. [PMID: 32291435 DOI: 10.1093/asj/sjaa097] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Abstract
BACKGROUND Recent work suggests that bacterial biofilms play a role in capsular contracture (CC). However, traditional culture techniques provide only a limited understanding of the bacterial communities present within the contracted breast. Next generation sequencing (NGS) represents an evolution of polymerase chain reaction technology that can sequence all DNA present in a given sample. OBJECTIVES The aim of this study was to utilize NGS to characterize the bacterial microbiome of the capsule in patients with CC following cosmetic breast augmentation. METHODS We evaluated 32 consecutive patients with Baker grade III or IV CC following augmentation mammoplasty. Specimens were obtained from all contracted breasts (n = 53) during capsulectomy. Tissue specimens from contracted capsules as well as intraoperative swabs of the breast capsule and implant surfaces were obtained. Samples were sent to MicroGenDX Laboratories (Lubbock, TX) for NGS. RESULTS Specimens collected from 18 of 32 patients (56%) revealed the presence of microbial DNA. The total number of positive samples was 22 of 53 (42%). Sequencing identified a total of 120 unique bacterial species and 6 unique fungal species. Specimens with microbial DNA yielded a mean [standard deviation] of 8.27 [4.8] microbial species per patient. The most frequently isolated species were Escherichia coli (25% of all isolates), Diaphorobacter nitroreducens (12%), Cutibacterium acnes (12%), Staphylococcus epidermidis (11%), fungal species (7%), and Staphylococcus aureus (6%). CONCLUSIONS NGS enables characterization of the bacterial ecosystem surrounding breast implants in unprecedented detail. This is a critical step towards understanding the role this microbiome plays in the development of CC. LEVEL OF EVIDENCE: 4
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21
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Hao SP, Masters EA, Ninomiya MJ, Beck CA, Schwarz EM, Daiss JL, Oh I. Species-Specific Immunoassay Aids Identification of Pathogen and Tracks Infectivity in Foot Infection. Foot Ankle Int 2021; 42:363-372. [PMID: 33161780 PMCID: PMC7946706 DOI: 10.1177/1071100720965136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
BACKGROUND Conventional bacterial cultures frequently fail to identify the dominant pathogen in polymicrobial foot infections, in which Staphylococcus aureus is the most common infecting pathogen. Previous work has shown that species-specific immunoassays may be able to identify the main pathogen in musculoskeletal infections. We sought to investigate the clinical applicability of a S. aureus immunoassay to accurately identify the infecting pathogen and monitor its infectivity longitudinally in foot infection. We hypothesized that this species-specific immunoassay could aid in the diagnosis of S. aureus and track the therapeutic response in foot infections. METHODS From July 2015 to July 2019, 83 infected foot ulcer patients undergoing surgical intervention (debridement or amputation) were recruited and blood was drawn at 0, 4, 8, and 12 weeks. Whole blood was analyzed for S. aureus-specific serum antibodies (mix of historic and new antibodies) and plasmablasts were isolated and cultured to quantify titers of newly synthesized antibodies (NSAs). Anti-S. aureus antibody titers were compared with culture results to assess their concordance in identifying S. aureus as the pathogen. The NSA titer changes at follow-ups were compared with wound healing status to evaluate concordance between evolving host immune response and clinically resolving or relapsing infection. RESULTS Analysis of serum for anti-S. aureus antibodies showed significantly increased titers of 3 different anti-S. aureus antibodies, IsdH (P = .037), ClfB (P = .025), and SCIN (P = .005), in S. aureus culture-positive patients compared with culture-negative patients. Comparative analysis of combining antigens for S. aureus infection diagnosis increased the concordance further. During follow-up, changes of NSA titers against a single or combination of S. aureus antigens significantly correlated with clinically resolving or recurring infection represented by wound healing status. CONCLUSION In the management of foot infection, the use of S. aureus-specific immunoassay may aid in diagnosis of the dominant pathogen and monitoring of the host immune response against a specific pathogen in response to treatment. Importantly, this immunoassay could detect recurrent foot infection, which may guide a surgeon's decision to intervene. LEVEL OF EVIDENCE Level II, prospective comparative study.
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Affiliation(s)
- Stephanie P. Hao
- Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, NY, USA
| | - Elysia A. Masters
- Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, NY, USA,Department of Biomedical Engineering, University of Rochester Medical Center, Rochester, NY, USA
| | - Mark J. Ninomiya
- Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, NY, USA
| | - Christopher A. Beck
- Department of Biostatistics and Computational Biology, University of Rochester, Rochester, NY, USA
| | - Edward M. Schwarz
- Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, NY, USA,Department of Biomedical Engineering, University of Rochester Medical Center, Rochester, NY, USA,Department of Orthopaedics and Rehabilitation, University of Rochester Medical Center, Rochester, NY, USA
| | - John L. Daiss
- Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, NY, USA,Department of Orthopaedics and Rehabilitation, University of Rochester Medical Center, Rochester, NY, USA
| | - Irvin Oh
- Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, NY, USA,Department of Orthopaedics and Rehabilitation, University of Rochester Medical Center, Rochester, NY, USA
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22
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McGuire A, Krysa N, Mann S. Hair of the Dog? Periprosthetic Joint Infection with Streptococcus can is. Arthroplast Today 2021; 8:53-56. [PMID: 33718556 PMCID: PMC7921709 DOI: 10.1016/j.artd.2021.01.010] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/07/2020] [Revised: 01/17/2021] [Accepted: 01/21/2021] [Indexed: 11/27/2022] Open
Abstract
A 61-year-old man underwent elective primary total hip arthroplasty at an academic center and presented to the emergency department 2 weeks later with a periprosthetic infection. Intraoperative cultures were positive for Streptococcus canis. He was successfully treated with one-stage revision and 6 weeks of intravenous cefazolin. It was later determined that the patient has a pet dog who frequently licks his legs. We hypothesize that patients with pets are more likely to carry this pathogen as part of their skin microbiome, and further research is required to establish whether S. canis poses an infectious risk beyond that of normal group B Streptococcus skin flora and if preoperative decolonization strategies are warranted.
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Affiliation(s)
- Andrew McGuire
- Division of Orthopaedic Surgery, Queen's University and Kingston Health Sciences Centre, Kingston, Ontario, Canada
| | - Nicole Krysa
- School of Medicine, Queen's University, Kingston, Ontario, Canada
| | - Steve Mann
- Division of Orthopaedic Surgery, Queen's University and Kingston Health Sciences Centre, Kingston, Ontario, Canada
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Nottingham CU, Assmus MA, Peters AW, Large T, Agarwal DK, Rivera ME, Krambeck AE. Next generation sequencing in patients with nephrolithiasis: how does it perform compared with standard urine and stone cultures? Ther Adv Urol 2021; 13:1756287221994972. [PMID: 33680094 PMCID: PMC7900788 DOI: 10.1177/1756287221994972] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Accepted: 01/11/2021] [Indexed: 12/02/2022] Open
Abstract
Background: Our aim was to compare microorganism detection between standard culture (Ctx)
and next generation sequencing (NGS) in patients undergoing surgery for
nephrolithiasis; we prospectively compared both urine and stone culture
results using these two techniques. Methods: We prospectively compared microorganism detection of urine and stone cultures
using Ctx versus NGS in patients undergoing surgery for
nephrolithiasis. We analyzed preoperative voided urine (Voided) using both
Ctx and NGS. Intraoperatively, renal stone (Stone) cultures were analyzed
with Ctx and NGS. The primary outcome was concordance in microorganism
detection between Voided Ctx and Stone NGS, as well as between Stone Ctx and
Stone NGS. Results: We prospectively evaluated 84 patients. The sensitivity, specificity,
positive predictive value (PPV), and negative predictive value (NPV) of
Voided Ctx predicting Stone Ctx were 66.7%, 73.7%, 54.5%, and 82.4%,
respectively. Concordance of Voided Ctx microorganisms to Stone
microorganisms decreased when NGS was used for the Stone compared with Ctx.
The sensitivity, specificity, PPV, and NPV of Voided NGS to predict Stone
Ctx microorganisms were 85.2%, 24.6%, 34.8%, and 77.8%, respectively. The
concordance of Voided NGS to Stone microorganisms improved when the Stone
was analyzed via NGS compared with Ctx. Conclusion: NGS has a higher detection rate of microorganisms than standard culture for
both preoperative urine and stone cultures. Voided NGS was the most
sensitive in predicting a positive Stone sample, but the specificity and PPV
were, overall, low. Further correlation of NGS microorganism detection with
patient outcomes will determine which clinical situations may benefit most
from NGS versus standard culture in patients with
urinary-tract stones.
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Affiliation(s)
- Charles U Nottingham
- Department of Urology, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Mark A Assmus
- Department of Urology, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Alexander W Peters
- Department of Urology, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Tim Large
- Department of Urology, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Deepak K Agarwal
- Department of Urology, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Marcelino E Rivera
- Department of Urology, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Amy E Krambeck
- Department of Urology, Indiana University School of Medicine, Indianapolis, IN, USA
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Esteban J, Gómez-Barrena E. An update about molecular biology techniques to detect orthopaedic implant-related infections. EFORT Open Rev 2021; 6:93-100. [PMID: 33828851 PMCID: PMC8022009 DOI: 10.1302/2058-5241.6.200118] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
Despite different criteria to diagnose a prosthetic joint infection (PJI), aetiological diagnosis of the causing microorganism remains essential to guide treatment.Molecular-biology-based PJI diagnosis is progressing (faster, higher specificity) in different techniques, from the experimental laboratory into clinical use.Multiplex polymerase chain reaction techniques (custom-made or commercial) provide satisfactory results in clinical series of cases, with specificity close to 100% and sensitivity over 70-80%.Next-generation metagenomics may increase sensitivity while maintaining high specificity.Molecular biology techniques may represent, in the next five years, a significant transformation of the currently available microbiological diagnosis in PJI. Cite this article: EFORT Open Rev 2021;6:93-100. DOI: 10.1302/2058-5241.6.200118.
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Affiliation(s)
- Jaime Esteban
- Servicio de Microbiología Clínica, Hospital Universitario Fundación Jiménez Díaz-IIS-Fundacion Jimenez Diaz, Universidad Autónoma de Madrid, Madrid, Spain
| | - Enrique Gómez-Barrena
- Servicio de Cirugía Ortopédica y Traumatología, Hospital Universitario La Paz-IdiPaz, Universidad Autónoma de Madrid, Madrid, Spain
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Goh GS, Parvizi J. Think Twice before Prescribing Antibiotics for That Swollen Knee: The Influence of Antibiotics on the Diagnosis of Periprosthetic Joint Infection. Antibiotics (Basel) 2021; 10:antibiotics10020114. [PMID: 33530305 PMCID: PMC7911292 DOI: 10.3390/antibiotics10020114] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Revised: 01/20/2021] [Accepted: 01/21/2021] [Indexed: 12/23/2022] Open
Abstract
Periprosthetic joint infection (PJI) is a rare but devastating complication after total joint arthroplasty. An estimated 7-12% of patients have negative cultures despite clear clinical evidence of infection. One oft-cited reason for this occurrence is the administration of antibiotics in the weeks prior to obtaining cultures. This article reviews the influence of antibiotics on the diagnosis of PJI. Specifically, we examine the effect of prophylactic and therapeutic antibiotic administration on the diagnostic accuracy of microbiological cultures as well as serum and synovial biomarkers. We also explore the potential of molecular techniques in overcoming these limitations in patients who have received antibiotics before specimen collection and propose areas for future research.
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26
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Cornax I, Zulk J, Olson J, Fulde M, Nizet V, Patras KA. Novel Models of Streptococcus canis Colonization and Disease Reveal Modest Contributions of M-Like (SCM) Protein. Microorganisms 2021; 9:microorganisms9010183. [PMID: 33467030 PMCID: PMC7829700 DOI: 10.3390/microorganisms9010183] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Accepted: 01/14/2021] [Indexed: 12/16/2022] Open
Abstract
Streptococcus canis is a common colonizing bacterium of the urogenital tract of cats and dogs that can also cause invasive disease in these animal populations and in humans. Although the virulence mechanisms of S. canis are not well-characterized, an M-like protein, SCM, has recently identified been as a potential virulence factor. SCM is a surface-associated protein that binds to host plasminogen and IgGs suggesting its possible importance in host-pathogen interactions. In this study, we developed in vitro and ex vivo blood component models and murine models of S. canis vaginal colonization, systemic infection, and dermal infection to compare the virulence potential of the zoonotic S. canis vaginal isolate G361 and its isogenic SCM-deficient mutant (G361∆scm). We found that while S. canis establishes vaginal colonization and causes invasive disease in vivo, the contribution of the SCM protein to virulence phenotypes in these models is modest. We conclude that SCM is dispensable for invasive disease in murine models and for resistance to human blood components ex vivo, but may contribute to mucosal persistence, highlighting a potential contribution to the recently appreciated genetic diversity of SCM across strains and hosts.
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Affiliation(s)
- Ingrid Cornax
- Department of Pediatrics, UC San Diego, La Jolla, CA 92093, USA; (I.C.); (J.O.); (V.N.)
| | - Jacob Zulk
- Department of Molecular Virology and Microbiology, Baylor College of Medicine, 1 Baylor Plaza, Houston, TX 77030, USA;
| | - Joshua Olson
- Department of Pediatrics, UC San Diego, La Jolla, CA 92093, USA; (I.C.); (J.O.); (V.N.)
| | - Marcus Fulde
- Institute of Microbiology and Epizootics, Centre of Infection Medicine, Freie Universität Berlin, 14163 Berlin, Germany;
| | - Victor Nizet
- Department of Pediatrics, UC San Diego, La Jolla, CA 92093, USA; (I.C.); (J.O.); (V.N.)
- Skaggs School of Pharmacy and Pharmaceutical Sciences, UC San Diego, La Jolla, CA 92093, USA
| | - Kathryn A Patras
- Department of Molecular Virology and Microbiology, Baylor College of Medicine, 1 Baylor Plaza, Houston, TX 77030, USA;
- Correspondence:
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Zhang C, Wang C, Chen F, Huang Z, Fang X, Li W, Yang B, Zhang W. Metagenomic Next-Generation Sequencing Technique Helps Identify Cryptococcal Infection in the Rib: A Report of 2 Cases and Review of the Literature. JBJS Case Connect 2020; 9:e0367. [PMID: 31821204 DOI: 10.2106/jbjs.cc.19.00367] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
CASE Two patients presented with pathological lytic bone lesions in the rib and associated soft tissue mass believed initially to represent soft tissue neoplasm. However, further consideration of infectious etiologies led to the identification of cryptococcal osteomyelitis. In one case, the microbiological culture was negative, but Cryptococcus neoformans was identified with the help of the metagenomic next-generation sequencing (mNGS) technique. Both patients received oral fluconazole-only treatment, and the infections were successfully eradicated. CONCLUSIONS The mNGS technique helps identify cryptococcal infection in the rib.
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Affiliation(s)
- Chaofan Zhang
- Department of Orthopedic Surgery, The First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian, China
| | - Chaoxin Wang
- Department of Orthopedic Surgery, The First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian, China
| | - Fei Chen
- Department of Orthopedic Surgery, The First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian, China
| | - Zida Huang
- Department of Orthopedic Surgery, The First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian, China
| | - Xinyu Fang
- Department of Orthopedic Surgery, The First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian, China
| | - Wenbo Li
- Department of Orthopedic Surgery, The First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian, China
| | - Bin Yang
- Department of Laboratory Medicine, The First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian, China
| | - Wenming Zhang
- Department of Orthopedic Surgery, The First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian, China
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Wasterlain AS, Goswami K, Ghasemi SA, Parvizi J. Diagnosis of Periprosthetic Infection: Recent Developments. J Bone Joint Surg Am 2020; 102:1366-1375. [PMID: 32769605 DOI: 10.2106/jbjs.19.00598] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
➤ There is no absolute test for the preoperative diagnosis of periprosthetic joint infection (PJI); thus, clinical practice relies on a combination of supportive tests and criteria.➤ Novel serum and synovial tests have improved our ability to diagnose PJI. The 2018 evidence-based algorithm for PJI diagnosis provides weighted scores for serum markers, as well as synovial markers, to facilitate diagnosis when major criteria such as positive cultures or a sinus tract are not present.➤ Culture-independent technologies such as next-generation sequencing can facilitate pathogen identification, particularly in the setting of culture-negative PJI.➤ Despite recent developments, PJI diagnosis remains challenging and warrants further innovation.
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Affiliation(s)
- Amy S Wasterlain
- Rothman Orthopaedic Institute at Thomas Jefferson University, Philadelphia, Pennsylvania
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Kalbian I, Park JW, Goswami K, Lee YK, Parvizi J, Koo KH. Culture-negative periprosthetic joint infection: prevalence, aetiology, evaluation, recommendations, and treatment. INTERNATIONAL ORTHOPAEDICS 2020; 44:1255-1261. [DOI: 10.1007/s00264-020-04627-5] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2020] [Accepted: 05/12/2020] [Indexed: 02/08/2023]
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Preliminary assessment of nanopore-based metagenomic sequencing for the diagnosis of prosthetic joint infection. Int J Infect Dis 2020; 97:54-59. [PMID: 32439542 DOI: 10.1016/j.ijid.2020.05.044] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Revised: 05/11/2020] [Accepted: 05/12/2020] [Indexed: 01/10/2023] Open
Abstract
OBJECTIVES Pathogen identification is crucial for the diagnosis and management of periprosthetic joint infection (PJI). Although culturing methods are the foundation of pathogen detection in PJI, false-negative results often occur. Oxford nanopore sequencing (ONS) is a promising alternative for detecting pathogens and providing information on their antimicrobial resistance (AMR) profiles, without culturing. METHODS To evaluate the capability of metagenomic ONS (mONS) in detecting pathogens from PJI samples, both metagenomic next-generation sequencing (mNGS) and mONS were performed in 15 osteoarticular samples from nine consecutive PJI patients according to the modified Musculoskeletal Infection Society (MSIS) criteria. The sequencing data generated from both platforms were then analyzed for pathogen identification and AMR detection using an in-house-developed bioinformatics pipeline. RESULTS Our results showed that mONS could be applied to detect the causative pathogen and characterize its AMR features in fresh PJI samples. By real-time sequencing and analysis, pathogen identification and AMR detection from the initiation of sequencing were accelerated. CONCLUSION We showed proof of concept that mONS can function as a rapid, accurate tool in PJI diagnostic microbiology. Despite efforts to reduce host DNA, the high proportion of host DNA was still a limitation of this method that prevented full genome analysis.
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Wang C, Huang Z, Li W, Fang X, Zhang W. Can metagenomic next-generation sequencing identify the pathogens responsible for culture-negative prosthetic joint infection? BMC Infect Dis 2020; 20:253. [PMID: 32228597 PMCID: PMC7106575 DOI: 10.1186/s12879-020-04955-2] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2019] [Accepted: 03/09/2020] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND The aims of this study were to (1) evaluate the efficacy and safety of targeted antibiotics for the treatment of culture-negative prosthetic joint infection based on metagenomic next-generation sequencing results and (2) verify the accuracy and reliability of metagenomic next-generation sequencing for identifying pathogens related to culture-negative prosthetic joint infection. METHODS Ninety-seven consecutive PJI patients, including 27 patients with culture-negative prosthetic joint infection, were treated surgically at our center. Thirteen of the 27 culture-negative prosthetic joint infection patients, who were admitted before June 2017 and treated with empirical antibiotics, comprised the empirical antibiotic group (EA group), and the other 14 patients, who were admitted after June 2017 and treated with targeted antibiotics according to their metagenomic next-generation sequencing results, were classified as the targeted antibiotic group (TA group). The short-term infection control rate, incidence of antibiotic-related complications and costs were compared between the two groups. RESULTS Two of the patients in the EA group experienced debridement and prolonged antimicrobial therapy due to wound infection after the initial revision surgery. No recurrent infections were observed in the TA group; however, no significant difference in the infection control rate was found between the two groups (83.33% vs 100%, P = 0.217). More cases of antibiotic-related complications were recorded in the EA group (6 cases) than in the TA group (1 case), but the difference was not statistically significant (P = 0.0697). The cost of antibiotics obtained for the EA group was 20,168.37 Yuan (3236.38-45,297.16), which was higher than that found for the TA group (10,164.16 Yuan, 2959.54-16,661.04, P = 0.04). CONCLUSIONS Targeted antibiotic treatment for culture-negative prosthetic joint infection based on metagenomic next-generation sequencing results is associated with a favorable outcome, and metagenomic next-generation sequencing is a reliable tool for identifying pathogens related to culture-negative prosthetic joint infection.
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Affiliation(s)
- Chaoxin Wang
- Department of Orthopedic Surgery, The First Affiliated Hospital of Fujian Medical University, No. 20 Chazhong Road, Fuzhou, 350005, China
| | - Zida Huang
- Department of Orthopedic Surgery, The First Affiliated Hospital of Fujian Medical University, No. 20 Chazhong Road, Fuzhou, 350005, China
| | - Wenbo Li
- Department of Orthopedic Surgery, The First Affiliated Hospital of Fujian Medical University, No. 20 Chazhong Road, Fuzhou, 350005, China
| | - Xinyu Fang
- Department of Orthopedic Surgery, The First Affiliated Hospital of Fujian Medical University, No. 20 Chazhong Road, Fuzhou, 350005, China
| | - Wenming Zhang
- Department of Orthopedic Surgery, The First Affiliated Hospital of Fujian Medical University, No. 20 Chazhong Road, Fuzhou, 350005, China.
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Abdel Karim M, Andrawis J, Bengoa F, Bracho C, Compagnoni R, Cross M, Danoff J, Della Valle CJ, Foguet P, Fraguas T, Gehrke T, Goswami K, Guerra E, Ha YC, Klaber I, Komnos G, Lachiewicz P, Lausmann C, Levine B, Leyton-Mange A, McArthur BA, Mihalič R, Neyt J, Nuñez J, Nunziato C, Parvizi J, Perka C, Reisener MJ, Rocha CH, Schweitzer D, Shivji F, Shohat N, Sierra RJ, Suleiman L, Tan TL, Vasquez J, Ward D, Wolf M, Zahar A. Hip and Knee Section, Diagnosis, Algorithm: Proceedings of International Consensus on Orthopedic Infections. J Arthroplasty 2019; 34:S339-S350. [PMID: 30348566 DOI: 10.1016/j.arth.2018.09.018] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
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Kheir MM, Tan TL, Shohat N, Foltz C, Parvizi J. Routine Diagnostic Tests for Periprosthetic Joint Infection Demonstrate a High False-Negative Rate and Are Influenced by the Infecting Organism. J Bone Joint Surg Am 2018; 100:2057-2065. [PMID: 30516629 DOI: 10.2106/jbjs.17.01429] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
BACKGROUND Current guidelines recommend serum erythrocyte sedimentation rate (ESR) and C-reactive protein (CRP) as the first-line testing for evaluation of suspected periprosthetic joint infection, in addition to synovial white blood-cell (WBC) count and polymorphonuclear percentage. However, the sensitivity and other diagnostic measures of these tests using a standardized definition of periprosthetic joint infection and the influence of organisms on these inflammatory markers remain inadequately investigated. METHODS A retrospective review of an institutional database of 549 periprosthetic joint infection cases and 653 aseptic total joint arthroplasty revisions was performed. Periprosthetic joint infection was defined using major criteria from the International Consensus Meeting (ICM) on Periprosthetic Joint Infection. The mean inflammatory marker levels were compared among organisms with Student t tests and the proportions of elevated laboratory levels were compared among organisms with chi-square analyses. Receiver operating characteristic curve analyses were performed to calculate new cutoffs, sensitivities, and specificities for each organism and overall for serum CRP and ESR and synovial WBC and polymorphonuclear percentage. RESULTS The sensitivity of these markers for diagnosing chronic periprosthetic joint infection was 0.85 for ESR, 0.88 for CRP, 0.83 for WBC count, and 0.78 for polymorphonuclear percentage. For ESR, antibiotic-resistant organisms had higher mean values (84.3 mm/hr) than culture-negative cases (57.4 mm/hr), coagulase-negative Staphylococcus (68.3 mm/hr), and Streptococcus species (66.1 mm/hr); Staphylococcus aureus (81.0 mm/hr) was higher than culture-negative cases (57.4 mm/hr). For CRP, culture-negative cases had lower mean values (41.0 mg/L) than gram-negative organisms (87.4 mg/L), antibiotic-resistant organisms (86.0 mg/L), S. aureus (112.2 mg/L), and Streptococcus species (114.6 mg/L); S. aureus (112.2 mg/L) was higher than coagulase-negative Staphylococcus (66.0 mg/L). For WBC count, culture-negative cases had lower mean values (27,984.5 cells/mL) than S. aureus (116,250.0 cells/mL) and Streptococcus species (77,933.7 cells/mL). For polymorphonuclear percentage, there were no significant differences in mean values among all organisms. CONCLUSIONS It appears that serological markers, namely ESR and CRP, have a higher false-negative rate than previously reported. Synovial markers similarly exhibit high false-negative rates. Furthermore, the sensitivity of these tests appears to be related to organism type. Surgeons should be aware of the high rate of false-negatives associated with low-virulence organisms and culture-negative cases. LEVEL OF EVIDENCE Diagnostic Level I. See Instructions for Authors for a complete description of levels of evidence.
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Affiliation(s)
- Michael M Kheir
- The Rothman Institute at Thomas Jefferson University, Philadelphia, Pennsylvania
| | - Timothy L Tan
- The Rothman Institute at Thomas Jefferson University, Philadelphia, Pennsylvania
| | - Noam Shohat
- Sackler Faculty of Medicine, Tel Aviv University, Ramat Aviv, Israel
| | - Carol Foltz
- The Rothman Institute at Thomas Jefferson University, Philadelphia, Pennsylvania
| | - Javad Parvizi
- The Rothman Institute at Thomas Jefferson University, Philadelphia, Pennsylvania
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Goswami K, Parvizi J, Maxwell Courtney P. Current Recommendations for the Diagnosis of Acute and Chronic PJI for Hip and Knee-Cell Counts, Alpha-Defensin, Leukocyte Esterase, Next-generation Sequencing. Curr Rev Musculoskelet Med 2018; 11:428-438. [PMID: 30062484 PMCID: PMC6105482 DOI: 10.1007/s12178-018-9513-0] [Citation(s) in RCA: 101] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
PURPOSE OF REVIEW Despite significant progress in recent years, the diagnosis of periprosthetic joint infection (PJI) remains a challenge and no gold standard test exists. A combination of serological, synovial, microbiological, histological, and radiological investigations is performed that are expensive, often invasive, and imperfect. Novel biomarkers and molecular methods have shown promise in recent years. The purpose of this review is to provide an update about the diagnostic recommendations for PJI and cover a selection of emerging diagnostic tools. RECENT FINDINGS Recent literature highlights a new evidence-based definition for diagnosing hip and knee PJI that shows excellent performance on formal external multi-institutional validation. There is also increasing evidence to support the measurement of selected biomarkers in serum and synovial fluid, such as alpha-defensin, D-dimer, and interleukin-6. Finally, the emerging utility of next-generation sequencing for pathogen identification is discussed. In summary, we describe current recommendations and emerging tests for the diagnosis of PJI. Residual limitations and directions for future research are also discussed.
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Affiliation(s)
- Karan Goswami
- The Rothman Institute at Thomas Jefferson University, 125 S 9th St. Ste 1000, Philadelphia, PA, 19107, USA
| | - Javad Parvizi
- The Rothman Institute at Thomas Jefferson University, 125 S 9th St. Ste 1000, Philadelphia, PA, 19107, USA
| | - P Maxwell Courtney
- The Rothman Institute at Thomas Jefferson University, 125 S 9th St. Ste 1000, Philadelphia, PA, 19107, USA.
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Tan TL, Kheir MM, Shohat N, Tan DD, Kheir M, Chen C, Parvizi J. Culture-Negative Periprosthetic Joint Infection: An Update on What to Expect. JB JS Open Access 2018; 3:e0060. [PMID: 30533595 PMCID: PMC6242327 DOI: 10.2106/jbjs.oa.17.00060] [Citation(s) in RCA: 80] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Background: Culture-negative periprosthetic joint infection (PJI) is a challenging condition to treat. The most appropriate management of culture-negative PJI is not known, and there is immense variability in the treatment outcome of this condition. The purpose of this study was to elucidate the characteristics, outcomes, and risk factors for failure of treatment of culture-negative PJI. Methods: A retrospective review of 219 patients (138 hips and 81 knees) who had undergone surgery for the treatment of culture-negative PJI was performed utilizing a prospectively collected institutional PJI database. PJIs for which the results of culture were unavailable were excluded. An electronic query and manual review of the medical records were completed to obtain patient demographics, treatment, microbiology data, comorbidities, and other surgical characteristics. Treatment failure was assessed using the Delphi consensus criteria. Results: The prevalence of suspected culture-negative PJI was 22.0% (219 of 996), and the prevalence of culture-negative PJI as defined by the Musculoskeletal Infection Society (MSIS) was 6.4% (44 of 688). Overall, the rate of treatment success was 69.2% (110 of 159) in patients with >1 year of follow-up. Of the 49 culture-negative PJIs for which treatment failed, 26 (53.1%) subsequently had positive cultures; of those 26, 10 (38.5%) were positive for methicillin-sensitive Staphylococcus aureus. The rate of treatment success was greater (p = 0.019) for patients who had 2-stage exchange than for those who underwent irrigation and debridement. Conclusions: The present study demonstrates that culture-negative PJI is a relatively frequent finding with unacceptable rates of treatment failure. Every effort should be made to isolate the infecting organism prior to surgical intervention, including extending the incubation period for cultures, withholding antibiotics prior to obtaining culture specimens, and possibly using newly introduced molecular techniques. Level of Evidence: Therapeutic Level IV. See Instructions for Authors for a complete description of levels of evidence
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Affiliation(s)
- Timothy L Tan
- Rothman Institute at Thomas Jefferson University, Philadelphia, Pennsylvania
| | - Michael M Kheir
- Rothman Institute at Thomas Jefferson University, Philadelphia, Pennsylvania
| | - Noam Shohat
- Rothman Institute at Thomas Jefferson University, Philadelphia, Pennsylvania
| | - Dean D Tan
- Rothman Institute at Thomas Jefferson University, Philadelphia, Pennsylvania
| | - Matthew Kheir
- Rothman Institute at Thomas Jefferson University, Philadelphia, Pennsylvania
| | - Chilung Chen
- Rothman Institute at Thomas Jefferson University, Philadelphia, Pennsylvania
| | - Javad Parvizi
- Rothman Institute at Thomas Jefferson University, Philadelphia, Pennsylvania
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