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Noguchi M, Honda S, Yamano M, Kawasaki T. Infective Endocarditis Caused by Staphylococcus lugdunensis. Intern Med 2024; 63:975-978. [PMID: 37495536 PMCID: PMC11045391 DOI: 10.2169/internalmedicine.1773-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Accepted: 05/29/2023] [Indexed: 07/28/2023] Open
Abstract
Staphylococcus lugdunensis, a minor species of coagulase-negative staphylococci, has attracted attention because of its formidable pathogenicity. We present a case of infective endocarditis (IE) caused by S. lugdunensis in a 72-year-old woman with a history of breast cancer and metastases who presented with fever. Two of two blood culture bottles were positive for gram-positive cocci. Transesophageal echocardiography revealed vegetation attached to the right cusp of the aortic valve and an abscess in the annulus, which was less evident on transthoracic echocardiography. This case underscores the importance of considering S. lugdunensis as a potential cause of IE.
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Affiliation(s)
- Masaki Noguchi
- Department of Cardiology, Matsushita Memorial Hospital, Japan
| | - Sakiko Honda
- Department of Cardiology, Matsushita Memorial Hospital, Japan
| | - Michiyo Yamano
- Department of Cardiology, Matsushita Memorial Hospital, Japan
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2
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Mousa A, Ghazy A, Kakhktsyan T, Chepenko K, Young K. Staphylococcus lugdunensis Infective Endocarditis With Mitral Valve Vegetations in a Hemodialysis Patient With Recurrent Arteriovenous Fistula Cannulation: A Case Report. Cureus 2023; 15:e39853. [PMID: 37404404 PMCID: PMC10314977 DOI: 10.7759/cureus.39853] [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: 06/01/2023] [Indexed: 07/06/2023] Open
Abstract
Infective endocarditis is a severe medical condition that occurs when the endocardium of the heart gets infected by different microorganisms, including coagulase-negative staphylococci such as Staphylococcus lugdunensis. The source of infection is often related to procedures done in the groin area, such as femoral catheterization for cardiac catheterization, vasectomy, or central line placement in an already infected mitral or aortic valve. Herein, we are discussing a case of a 55-year-old female with a past medical history of end-stage renal disease on hemodialysis with a history of recurrent cannulation of her arteriovenous (AV) fistula. She presented with fever, myalgia, and generalized weakness, and was later found to have Staphylococcus lugdunensis bacteremia and infective endocarditis with mitral valve vegetations, for which the patient was transferred to the mitral valve specialized center for mitral valve replacement. This case acts as a reminder to consider recurrent cannulation of the AV fistula as one of the potential ports of entry of Staphylococcus lugdunensis to the body.
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Affiliation(s)
- Aliaa Mousa
- Internal Medicine, Capital Health Regional Medical Center, Trenton, USA
| | - Ahmed Ghazy
- Internal Medicine, Capital Health Regional Medical Center, Trenton, USA
| | - Tigran Kakhktsyan
- Internal Medicine, Capital Health Regional Medical Center, Trenton, USA
| | - Kateryna Chepenko
- Internal Medicine, Capital Health Regional Medical Center, Trenton, USA
| | - Kristopher Young
- Cardiology, Capital Health Regional Medical Center, Trenton, USA
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3
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Stahl JP, Canouï E, Bleibtreu A, Dubée V, Ferry T, Gillet Y, Lemaignen A, Lesprit P, Lorrot M, Lourtet-Hascoët J, Manaquin R, Meyssonnier V, Pavese P, Pham TT, Varon E, Gauzit R. SPILF update on bacterial arthritis in adults and children. Infect Dis Now 2023; 53:104694. [PMID: 36948248 DOI: 10.1016/j.idnow.2023.104694] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Accepted: 03/13/2023] [Indexed: 03/24/2023]
Abstract
In 2020 the French Society of Rhumatology (SFR) published an update of the 1990 recommendations for management of bacterial arthritis in adults. While we (French ID Society, SPILF) totally endorse this update, we wished to provide further information about specific antibiotic treatments. The present update focuses on antibiotics with good distribution in bone and joint. It is important to monitor their dosage, which should be maximized according to PK/PD parameters. Dosages proposed in this update are high, with the optimized mode of administration for intravenous betalactams (continuous or intermittent infusion). We give tools for the best dosage adaptation to conditions such as obesity or renal insufficiency. In case of enterobacter infection, with an antibiogram result "susceptible for high dosage", we recommend the requesting of specialized advice from an ID physician. More often than not, it is possible to prescribe antibiotics via the oral route as soon as blood cultures are sterile and clinical have symptoms shown improvement. Duration of antibiotic treatment is 6 weeks for Staphylococcus aureus, and 4 weeks for the other bacteria (except for Neisseria: 7 days).
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Affiliation(s)
- J P Stahl
- Université Grenoble Alpes, Maladies Infectieuses, 38700, France.
| | - E Canouï
- Equipe mobile d'infectiologie, Hôpital Cochin, Assistance Publique-Hôpitaux de Paris (AP-HP), Centre de Référence des Infections Ostéo-Articulaires complexes (CRIOAc Cochin) APHP-CUP, Paris, France
| | - A Bleibtreu
- Maladies Infectieuseset Tropicales, Hôpital Pitié Salpêtrière, AP-HP Sorbonne Université, Paris France
| | - V Dubée
- Maladies Infectieuses et Tropicales, CHU d'Angers, Angers, France
| | - T Ferry
- Maladies Infectieuses et Tropicales, Centre de Référence des Infections Ostéo-Articulaires complexes (CRIOAc Lyon), Hospices Civils de Lyon, Hôpital de la Croix-Rousse, 69004, Hospices Civils de Lyon, Lyon, France. Service des Maladies Infectieuses, Département de médecine, Hôpitaux Universitaires de Genève, Suisse
| | - Y Gillet
- Urgences et Réanimation Pédiatrique, Hospices Civils de Lyon, Université Claude Bernard Lyon, France
| | - A Lemaignen
- Maladies Infectieuses, CHRU de Tours, Université de Tours, 37044, France
| | - P Lesprit
- Maladies Infectieuses, CHU Grenoble Alpes, 38043, France
| | - M Lorrot
- Pédiatrie Générale et Equipe Opérationnelle d'Infectiologie, Centre de Référence des Infections Ostéo-Articulaires complexes (CRIOAc Pitié), Hôpital Armand Trousseau AP-HP Sorbonne Université, Paris France
| | | | - R Manaquin
- Maladies Infectieuses et Tropicales, GHSR , CHU de La Réunion, CRAtb La Réunion, Saint-Pierre, 97410, FRANCE
| | - V Meyssonnier
- Centre de Référence des Infections Ostéo-articulaires, GH Diaconesses Croix Saint-Simon, 75020, Paris, France; Service de Médecine Interne Générale, Département de médecine, Hôpitaux Universitaires de Genève, Suisse
| | - P Pavese
- Maladies Infectieuses, CHU Grenoble Alpes, 38043, France
| | - T-T Pham
- Maladies Infectieuses et Tropicales, Centre de Référence des Infections Ostéo-Articulaires complexes (CRIOAc Lyon), Hospices Civils de Lyon, Hôpital de la Croix-Rousse, 69004, Hospices Civils de Lyon, Lyon, France. Service des Maladies Infectieuses, Département de médecine, Hôpitaux Universitaires de Genève, Suisse
| | - E Varon
- Centre National de Référence des Pneumocoques, CRC-CRB, Centre Hospitalier Intercommunal de Créteil, 94000, Créteil, France
| | - R Gauzit
- Equipe mobile d'infectiologie, Hôpital Cochin, Assistance Publique-Hôpitaux de Paris (AP-HP), Centre de Référence des Infections Ostéo-Articulaires complexes (CRIOAc Cochin) APHP-CUP, Paris, France
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Bartek B, Winkler T, Garbe A, Schelberger T, Perka C, Jung T. Bacterial contamination of irrigation fluid and suture material during ACL reconstruction and meniscus surgery : Low infection rate despite increasing contamination over surgery time. Knee Surg Sports Traumatol Arthrosc 2022; 30:246-252. [PMID: 33566145 PMCID: PMC8800874 DOI: 10.1007/s00167-021-06481-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/02/2020] [Accepted: 01/25/2021] [Indexed: 12/02/2022]
Abstract
PURPOSE During knee arthroscopy, irrigation fluid from the surgical site accumulates in the sterile reservoir. Whether these fluid collections and also suture material used during the arthroscopic surgical processes show bacterial contamination over time during surgery remains unclear. The purpose of this study was to determine this contamination rate and to analyze its possible influence on postoperative infection. MATERIALS AND METHODS In this study, 155 patients were included. Fifty-eight underwent reconstruction of the anterior cruciate ligament (ACL), 63 meniscal surgery and 34 patients combined ACL reconstruction and meniscus repair. We collected pooled samples of irrigation fluid from the reservoir on the sterile drape every 15 min during the surgery. In addition, we evaluated suture material of ACL graft and meniscus repair for bacterial contamination. Samples were sent for microbiological analysis, incubation time was 14 days. All patients were seen in the outpatient department 6, 12 weeks and 12 months postoperatively and examined for clinical signs of infection. RESULTS A strong statistical correlation (R2 = 0.81, p = 0.015) was found between an advanced duration of surgery and the number of positive microbiological findings in the accumulated fluid. Suture and fixation material showed a contamination rate of 28.4% (29 cases). Despite the high contamination rate, only one infection was found in the follow-up examinations, caused by Staphylococcus lugdunensis. CONCLUSION Since bacterial contamination of accumulated fluid increases over time the contact with the fluid reservoirs should be avoided. LEVEL OF EVIDENCE IV.
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Affiliation(s)
- Benjamin Bartek
- Center for Musculoskeletal Surgery, Charitéplatz 1, 10117, Berlin, Germany.
| | - Tobias Winkler
- Center for Musculoskeletal Surgery, Charitéplatz 1, 10117, Berlin, Germany
- Julius Wolff Institute, Berlin, Germany
- Berlin-Institute of Health Center for Regenerative Therapies, Charité, Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität Zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Anja Garbe
- Center for Musculoskeletal Surgery, Charitéplatz 1, 10117, Berlin, Germany
| | - Tarek Schelberger
- Center for Musculoskeletal Surgery, Charitéplatz 1, 10117, Berlin, Germany
| | - Carsten Perka
- Center for Musculoskeletal Surgery, Charitéplatz 1, 10117, Berlin, Germany
| | - Tobias Jung
- Center for Musculoskeletal Surgery, Charitéplatz 1, 10117, Berlin, Germany
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Lima RD, Dos Reis GA, da Silva Reviello J, Glatthardt T, da Silva Coimbra L, Lima COGX, Antunes LCM, Ferreira RBR. Antibiofilm activity of Cutibacterium acnes cell-free conditioned media against Staphylococcus spp. Braz J Microbiol 2021; 52:2373-2383. [PMID: 34599747 PMCID: PMC8578501 DOI: 10.1007/s42770-021-00617-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Accepted: 09/19/2021] [Indexed: 10/20/2022] Open
Abstract
Staphylococcus spp. and Cutibacterium acnes are members of the skin microbiome but can also act as pathogens. Particularly, Staphylococcus species are known to cause medical devices-associated infections, and biofilm production is one of their main virulence factors. Biofilms allow bacteria to adhere and persist on surfaces, protecting them from antimicrobials and host defenses. Since both bacteria are found in the human skin, potentially competing for niches, we aimed to investigate if C. acnes produces molecules that affect Staphylococcus spp. biofilm formation and dispersal. Thus, we evaluated the impact of C. acnes cell-free conditioned media (CFCM) on S. aureus, S. epidermidis, S. hominis, and S. lugdunensis biofilm formation. S. lugdunensis and S. hominis biofilm formation was significantly reduced with C. acnes CFCM without impact on their planktonic growth. C. acnes CFCM also significantly disrupted S. hominis established biofilms. The active molecules against S. lugdunensis and S. hominis biofilms appeared to be distinct since initial characterization points to different sizes and sensitivity to sodium metaperiodate, although the activity is highly resistant to heat in both cases. Mass spectrometry analysis of the fractions active against S. hominis revealed several potential candidates. Investigating how species present in the same environment interact, affecting the dynamics of biofilm formation, may reveal clinically useful compounds as well as molecular aspects of interspecies interactions.
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Affiliation(s)
- Rayssa Durães Lima
- Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Gabrielle Antunes Dos Reis
- Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Juliana da Silva Reviello
- Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Thaís Glatthardt
- Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Larissa da Silva Coimbra
- Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | | | - Luis Caetano Martha Antunes
- Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Rio de Janeiro, Brazil
- Instituto Nacional de Ciência e Tecnologia em Doenças de Populações Negligenciadas, Centro de Desenvolvimento Tecnológico em Saúde, Fundação Oswaldo Cruz, Rio de Janeiro, Brazil
| | - Rosana Barreto Rocha Ferreira
- Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil.
- Departamento de Microbiologia Médica, Instituto de Microbiologia Paulo de Góes, CCS, Bloco I2-028, UFRJ, Cidade Universitária, Rio de Janeiro, RJ, 21941-590, Brazil.
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Abstract
Evaluation of penicillin and oxacillin susceptibility testing was conducted on two hundred Staphylococcus lugdunensis isolates. Disc diffusion with penicillin 1 IU (P1, EUCAST) and penicillin 10 IU (P10, CLSI) was compared with nitrocefin discs (Cefinase®) and automated broth microdilution (Vitek2®). Oxacillin susceptibility was extrapolated from cefoxitin 30μg disc diffusion (FOX) and compared with Vitek2®. Reference methods were blaZ and mecA PCR. Penicillin zone diameter and zone edge correlated with blaZ in all except two P10 susceptible isolates (VME; very major error) and one P1 resistant isolate (ME). One hundred and forty-eight isolates were blaZ-negative of which one hundred and forty-six and one hundred and forty-nine isolates were susceptible by P1 and P10 respectively. One hundred and twenty-seven isolates were penicillin susceptible by Vitek2®. Vitek2® overcalled resistance in twenty-one blaZ-negative, twenty P1 and twenty-two P10 susceptible isolates (Vitek2® ME rate, 14.2%). Two mecA-positive isolates were oxacillin resistant by FOX and Vitek2® (categorical agreement). However, eighteen FOX susceptible, mecA-negative isolates tested resistant by Vitek2®. In conclusion, Vitek2® over-estimated penicillin and oxacillin resistance compared with disc diffusion and PCR. Disc diffusion with zone edge interpretation was more accurate and specific than automated broth microdilution for S. lugdunensis in our study.
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Li YF, Gong XL, Chen SX, Wang K, Jiang YH. Deviations in the gut microbiota of neonates affected by maternal group B Streptococcus colonization. BMC Microbiol 2021; 21:140. [PMID: 33952201 PMCID: PMC8097833 DOI: 10.1186/s12866-021-02204-3] [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: 11/20/2020] [Accepted: 04/23/2021] [Indexed: 01/30/2023] Open
Abstract
Background Group B Streptococcus (GBS) infection is the leading cause of septicemia, meningitis, and pneumonia in neonates. Aberrant gut colonization in early life may predispose children to various diseases in adulthood. However, the associations between gut microbial changes and GBS colonization is still unclear. Results The composition and diversity of meconium microbiota in GBS group were similar to that of healthy controls. However, we identified several specific taxa that were differentially abundant between the two groups (linear discriminant analysis (LDA) effect size (LEfSe): p < 0.05, LDA > 2.0). Particularly, the relative abundance of Lactobacillus paracasei was significantly reduced, indicating a role in GBS colonization. Conclusions Our study presented a series of bacterial species colonized by GBS, thus providing novel evidence in support of initial intestinal microbiota dysbiosis in the neonates with mother’s GBS colonization. Supplementary Information The online version contains supplementary material available at 10.1186/s12866-021-02204-3.
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Affiliation(s)
- Yue-Feng Li
- Department of Pediatrics, Shenzhen Luohu Maternity and Child Health Hospital, Shenzhen, 518019, China
| | - Xue-Lei Gong
- Department of Pediatrics, Shenzhen Luohu Maternity and Child Health Hospital, Shenzhen, 518019, China
| | - Su-Xiang Chen
- Department of Pediatrics, Shenzhen Luohu Maternity and Child Health Hospital, Shenzhen, 518019, China
| | - Kejian Wang
- The Third Affiliated Hospital of Shandong First Medical University Affiliated Hospital of Shandong Academy of Medical Sciences, Jinan, 250031, China.
| | - Yan-Hua Jiang
- Departments of Obstetrics and Gynecology, Shenzhen Luohu Maternity and Child Health Hospital, No.2013, Taibai Road, Luohu District, Shenzhen, 518019, China.
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Masood K, Redfern RE, Duggan JM, Georgiadis GM, Suleyman G. Clinical Characteristics and Outcomes of Staphylococcus lugdunensis Prosthetic Joint Infections: A Multicenter Retrospective Analysis. Orthopedics 2020; 43:345-350. [PMID: 33002183 DOI: 10.3928/01477447-20200923-03] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/14/2019] [Accepted: 06/18/2020] [Indexed: 02/03/2023]
Abstract
Staphylococcus lugdunensis has been increasingly recognized as a cause of serious infections, particularly prosthetic joint infections (PJIs). The aim of this study was to describe the clinical characteristics, treatments, and outcomes of S lugdunensis PJIs. This was a retrospective multicenter study of consecutive adult patients with S lugdunensis PJIs from January 2007 through December 2017; 28 patients met inclusion criteria. The knee was the most commonly affected joint (67.9%), followed by the hip (25%). Clinical and microbiologic characteristics, treatment modalities, and outcomes were evaluated. Thirteen (46.4%) patients had two-stage revision, 9 (32.1%) had debridement with or without revision, 5 (21.4%) had no surgical intervention, and 1 (3.6%) had one-stage revision. Twenty-four (85.7%) patients had monomicrobial infection with S lugdunensis, whereas 4 had polymicrobial. Two patients had concomitant bacteremia. All isolates, except 1, were susceptible to oxacillin. Three patients with no surgical intervention received oral antibiotics, 2 were not treated, and 1 was discharged to hospice. Relapse was observed in 2 of 13 (15%) patients who had two-stage revision, 4 of 9 (44%) who had debridement, and 6 of 6 (100%) who had no surgical intervention or one-stage revision regardless of antibiotic treatment regimen. There was a significant difference in cure rate for patients who underwent two-stage revision compared with other treatment modalities (85% vs 33%, P=.009). Appropriate management of S lugdunensis PJI includes both aggressive surgical treatment and a prolonged course of antibiotics and is associated with excellent clinical response. Regardless of route or duration of antibiotic therapy, relapse is high for patients not treated with two-stage revision. [Orthopedics. 2020;43(6):345-350.].
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Horswill AR, Gordon CP. Structure-Activity Relationship Studies of Small Molecule Modulators of the Staphylococcal Accessory Gene Regulator. J Med Chem 2019; 63:2705-2730. [PMID: 31658413 DOI: 10.1021/acs.jmedchem.9b00798] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
The accessory gene regulator (agr) quorum-sensing system is arguably the most important regulator of Staphylococcus virulence. The agr-system serves a crucial role in pathogenesis by triggering substantive gene expression alterations to up-regulate the production of a wide variety of virulence determinants such as exoenzymes (proteases, lipases, nucleases) and downregulate the expression of surface binding proteins. Accordingly, the agr-system represents a compelling target for the development of antivirulence therapeutics as potential adjuncts, or alternatives, to conventional bactericidal and bacteriostatic antibiotics. Despite this potential, to date, no agr-system inhibitors have progressed to the clinic; however, several promising lead compounds have been identified through screens of synthetic and natural product libraries. On the basis of the molecular components within the agr-system, the current contingent of regulating compounds can be clustered into three broad groups, AgrA-P3 activation inhibitors, AgrB-AgrD processing inhibitors, and AgrC-AIP interaction inhibitors. This review aims to provide an overview of the development, structure-activity-relationships, and limitations of compounds within each of these groups in addition to the current opportunities for developing next-generation anologs.
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Affiliation(s)
- Alexander R Horswill
- Veterans Affairs Eastern Colorado Health Care System, Aurora, Colorado 80045, United States.,Department of Immunology and Microbiology, University of Colorado Anschutz Medical Campus, Aurora, Colorado 80045, United States
| | - Christopher P Gordon
- School of Science and Health, Western Sydney University, Locked Bag 1797, Penrith South DC, NSW 2751, Australia.,Molecular Medicine Research Group, School of Medicine, Westerm Sydney University, Building 30, Campbelltown, NSW 2560, Australia
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Añibarro-Ortega M, Pinela J, Barros L, Ćirić A, Silva SP, Coelho E, Mocan A, Calhelha RC, Soković M, Coimbra MA, Ferreira ICFR. Compositional Features and Bioactive Properties of Aloe vera Leaf (Fillet, Mucilage, and Rind) and Flower. Antioxidants (Basel) 2019; 8:E444. [PMID: 31581507 PMCID: PMC6826699 DOI: 10.3390/antiox8100444] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2019] [Revised: 09/26/2019] [Accepted: 09/27/2019] [Indexed: 12/14/2022] Open
Abstract
This work aimed to characterize compositional and bioactive features of Aloe vera leaf (fillet, mucilage, and rind) and flower. The edible fillet was analysed for its nutritional value, and all samples were studied for phenolic composition and antioxidant, anti-inflammatory, antimicrobial, tyrosinase inhibition, and cytotoxic activities. Dietary fibre (mainly mannan) and available carbohydrates (mainly free glucose and fructose) were abundant macronutrients in fillet, which also contained high amounts of malic acid (5.75 g/100 g dw) and α-tocopherol (4.8 mg/100 g dw). The leaf samples presented similar phenolic profiles, with predominance of chromones and anthrones, and the highest contents were found in mucilage (131 mg/g) and rind (105 mg/g) extracts, which also revealed interesting antioxidant properties. On the other hand, the flower extract was rich in apigenin glycoside derivatives (4.48 mg/g), effective against Pseudomonas aeruginosa (MIC = 0.025 mg/mL and MBC = 0.05 mg/mL) and capable of inhibiting the tyrosinase activity (IC50 = 4.85 mg/mL). The fillet, rind, and flower extracts also showed a powerful antifungal activity against Aspergillus flavus, A. niger, Penicillium funiculosum, and Candida albicans, higher than that of ketoconazole. Thus, the studied Aloe vera samples displayed high potential to be exploited by the food or cosmetic industries, among others.
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Affiliation(s)
- Mikel Añibarro-Ortega
- Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal.
| | - José Pinela
- Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal.
| | - Lillian Barros
- Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal.
| | - Ana Ćirić
- Department of Plant Physiology, Institute for Biological Research "Siniša Stanković", University of Belgrade, Bulevar Despota Stefana 142, 11000 Belgrade, Serbia.
| | - Soraia P Silva
- QOPNA & LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal.
| | - Elisabete Coelho
- QOPNA & LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal.
| | - Andrei Mocan
- Department of Pharmaceutical Botany, "Iuliu Hațieganu" University of Medicine and Pharmacy, Gheorghe Marinescu Street 23, 400337 Cluj-Napoca, Cluj, Romania.
- Laboratory of Chromatography, Institute of Advanced Horticulture Research of Transylvania, University of Agricultural Sciences and Veterinary Medicine, 400372 Cluj-Napoca, Romania.
| | - Ricardo C Calhelha
- Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal.
| | - Marina Soković
- Department of Plant Physiology, Institute for Biological Research "Siniša Stanković", University of Belgrade, Bulevar Despota Stefana 142, 11000 Belgrade, Serbia.
| | - Manuel A Coimbra
- QOPNA & LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal.
| | - Isabel C F R Ferreira
- Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal.
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Gaut D, Muir K, Pessegueiro AM. A case of Staphylococcus lugdunensis bacteremia complicated by reactive arthritis. SAGE Open Med Case Rep 2019; 7:2050313X19828249. [PMID: 30783530 PMCID: PMC6365992 DOI: 10.1177/2050313x19828249] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2018] [Accepted: 01/10/2019] [Indexed: 01/21/2023] Open
Abstract
Reactive arthritis has been described infrequently in association with staphylococcal infections, both those secondary to Staphylococcus aureus and coagulase-negative staphylococci. We present a case of a 51-year-old male undergoing chemotherapy for pancreatic cancer who presented with joint pain and fevers and was found to have Staphylococcus lugdunensis bacteremia. Transthoracic and transesophageal echocardiograms were negative for endocarditis. Arthrocentesis from one large joint revealed culture-negative inflammatory synovitis. This case illustrates that a possible systemic manifestation of Staphylococcus lugdunensis bacteremia, in addition to the more common endocarditis, can also include reactive arthritis.
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Affiliation(s)
- Daria Gaut
- Department of Medicine, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, USA
| | - Kyle Muir
- Department of Medicine, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, USA
| | - Antonio M Pessegueiro
- Department of Medicine, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, USA
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12
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Gaglani B, Dahdouh M, Shah K. Septic arthritis of native hip joint by Staphylococcus lugdunensis: a case report. Rev Soc Bras Med Trop 2018; 51:554-556. [DOI: 10.1590/0037-8682-0169-2017] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2017] [Accepted: 05/04/2018] [Indexed: 11/21/2022] Open
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Argemi X, Martin V, Loux V, Dahyot S, Lebeurre J, Guffroy A, Martin M, Velay A, Keller D, Riegel P, Hansmann Y, Paul N, Prévost G. Whole-Genome Sequencing of Seven Strains of Staphylococcus lugdunensis Allows Identification of Mobile Genetic Elements. Genome Biol Evol 2017; 9:3746526. [PMID: 28444231 PMCID: PMC5425232 DOI: 10.1093/gbe/evx077] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/20/2017] [Indexed: 12/17/2022] Open
Abstract
Coagulase negative staphylococci are normal inhabitant of the human skin flora that account for an increasing number of infections, particularly hospital-acquired infections. Staphylococcus lugdunensis has emerged as a most virulent species causing various infections with clinical characteristics close to what clinicians usually observe with Staphylococcus aureus and both bacteria share more than 70% of their genome. Virulence of S. aureus relies on a large repertoire of virulence factors, many of which are encoded on mobile genetic elements. S. lugdunensis also bears various putative virulence genes but only one complete genome with extensive analysis has been published with one prophage sequence (φSL2) and a unique plasmid was previously described. In this study, we performed de novo sequencing, whole genome assembly and annotation of seven strains of S. lugdunensis from VISLISI clinical trial. We searched for the presence of virulence genes and mobile genetics elements using bioinformatics tools. We identified four new prophages, named φSL2 to φSL4, belonging to the Siphoviridae class and five plasmids, named pVISLISI_1 to pVISLISI_5. Three plasmids are homologous to known plasmids that include, amongst others, one S. aureus plasmid. The two other plasmids were not described previously. This study provides a new context for the study of S. lugdunensis virulence suggesting the occurrence of several genetic recombination’ with other staphylococci.
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Affiliation(s)
- Xavier Argemi
- Hôpitaux Universitaires, Maladies Infectieuses et Tropicales, Strasbourg, France.,Université de Strasbourg, CHRU de Strasbourg, VBP EA7290, Fédération de Médecine Translationnelle de Strasbourg (FMTS), Institut de bactériologie, Hôpitaux Universitaires de Strasbourg, France
| | - Véronique Martin
- INRA - Unité Mathématiques et Informatique Appliquées, du Genome à l'Environnement (MaIAGE), Jouy-en Josas, France
| | - Valentin Loux
- INRA - Unité Mathématiques et Informatique Appliquées, du Genome à l'Environnement (MaIAGE), Jouy-en Josas, France
| | - Sandrine Dahyot
- Laboratoire GRAM EA2656, Université de Rouen - IRIB UFR Médecine-Pharmacie Batiment Recherche, Rouen, France
| | - Jérémie Lebeurre
- Laboratoire GRAM EA2656, Université de Rouen - IRIB UFR Médecine-Pharmacie Batiment Recherche, Rouen, France
| | - Aurélien Guffroy
- Service d'Immunologie Clinique et de Médecine Interne, Centre National de Référence des Maladies Auto-immunes Rares, Hôpitaux Universitaires de Strasbourg, Strasbourg, France.,CNRS UPR 3572, Immunopathologie et Chimie Thérapeutique/Equipe, Tolérance Cellulaire B et Auto-immunité, Laboratoire d'excellence Medalis, Institute of Molecular and Cellular Biology (IBMC), Strasbourg, France
| | - Mickael Martin
- Service d'Immunologie Clinique et de Médecine Interne, Centre National de Référence des Maladies Auto-immunes Rares, Hôpitaux Universitaires de Strasbourg, Strasbourg, France.,CNRS UPR 3572, Immunopathologie et Chimie Thérapeutique/Equipe, Tolérance Cellulaire B et Auto-immunité, Laboratoire d'excellence Medalis, Institute of Molecular and Cellular Biology (IBMC), Strasbourg, France
| | - Aurélie Velay
- Virology Laboratory, University Hospital of Strasbourg, Strasbourg, France.,2-INSERM, UMR_S1109, LabEx Transplantex, Fédération de Médecine Translationnelle de Strasbourg (FMTS), Université de Strasbourg, Strasbourg, France
| | - Daniel Keller
- Université de Strasbourg, CHRU de Strasbourg, VBP EA7290, Fédération de Médecine Translationnelle de Strasbourg (FMTS), Institut de bactériologie, Hôpitaux Universitaires de Strasbourg, France
| | - Philippe Riegel
- Université de Strasbourg, CHRU de Strasbourg, VBP EA7290, Fédération de Médecine Translationnelle de Strasbourg (FMTS), Institut de bactériologie, Hôpitaux Universitaires de Strasbourg, France
| | - Yves Hansmann
- Hôpitaux Universitaires, Maladies Infectieuses et Tropicales, Strasbourg, France.,Université de Strasbourg, CHRU de Strasbourg, VBP EA7290, Fédération de Médecine Translationnelle de Strasbourg (FMTS), Institut de bactériologie, Hôpitaux Universitaires de Strasbourg, France
| | - Nicodème Paul
- Laboratoire d'ImmunoRhumatologie Moléculaire, INSERM UMR_S 1109, Plateforme GENOMAX, Faculté de Médecine, Fédération Hospitalo-Universitaire OMICARE, Fédération de Médecine Translationnelle de Strasbourg (FMTS), Université de Strasbourg, Strasbourg, France
| | - Gilles Prévost
- Université de Strasbourg, CHRU de Strasbourg, VBP EA7290, Fédération de Médecine Translationnelle de Strasbourg (FMTS), Institut de bactériologie, Hôpitaux Universitaires de Strasbourg, France
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Chou DW, Lee CT. Primary lung abscess caused by Staphylococcus lugdunensis. J Infect Chemother 2017; 23:791-793. [PMID: 28751155 DOI: 10.1016/j.jiac.2017.07.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2017] [Revised: 06/23/2017] [Accepted: 07/10/2017] [Indexed: 10/19/2022]
Abstract
Staphylococcus lugdunensis, a strain of coagulase-negative staphylococci, is part of the normal flora of human skin but can cause multiple infections at various sites. This microorganism has emerged as a major human pathogen. However, no study has reported primary lung abscess caused by S. lugdunensis. A 54-year-old alcoholic man without relevant past medical history was admitted because of primary lung abscesses. Empirical amoxicillin/clavulanate therapy was initially administered; however, the patient had persistent pleuritic chest pain and fever. He subsequently underwent resection of the lung abscess and removal of exudative pleural effusion on the fourth hospital day. Histopathologic examination confirmed the diagnosis of lung abscess, and colonies of gram-positive bacteria were identified. The culture specimen from the abscess was positive for S. lugdunensis, which was susceptible to amoxicillin/clavulanate, cefazolin, ciprofloxacin, clindamycin, erythromycin, oxacillin, teicoplanin, tetracycline, and vancomycin. Following resection and 3 weeks of amoxicillin/clavulanate therapy, the patient eventually recovered well without relapse. This case report is the first to describe S. lugdunensis as a cause of primary lung abscess; this microorganism should be considered a potential monomicrobial pathogen in primary lung abscess.
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Affiliation(s)
- Deng-Wei Chou
- Department of Critical Care Medicine, Tainan Municipal Hospital, 670 Chungde Road, East District, Tainan, Taiwan.
| | - Chao-Tai Lee
- Department of Clinical Laboratory, Tainan Municipal Hospital, 670 Chungde Road, East District, Tainan, Taiwan.
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Kinetics of biofilm formation by Staphylococcus lugdunensis strains in bone and joint infections. Diagn Microbiol Infect Dis 2017; 88:298-304. [PMID: 28529089 DOI: 10.1016/j.diagmicrobio.2017.05.002] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2017] [Revised: 05/05/2017] [Accepted: 05/06/2017] [Indexed: 11/23/2022]
Abstract
OBJECTIVE To describe the clinical presentation and 1-year follow-up of patients with bone and joint infections (BJIs) caused by Staphylococcus lugdunensis and evaluate its biofilm-forming capacities. PATIENTS AND METHODS Overall, 28 patients with BJIs from VISLISI clinical trials were included. We evaluated 1-year clinical follow-up and analyzed biofilm production kinetics of the 28 strains using the BioFilm Ring Test®. RESULTS Of all patients, 12 had osteoarticular infections without material and 16 had prosthetic joint infections, of which 9 underwent a 1-stage revision procedure. At the 1-year follow-up, all patients were cured but needed a surgical intervention. Diabetes affected 46.4% of all patients. Of all, 20 strains (71.4%) started biofilm formation within 2 h, but all strains started the formation after 4 h experiment, and 25 strains (89.3%) reached a maximum after 6 h. CONCLUSIONS This study describes the clinical and surgical management of BJIs caused by S. lugdunensis and shows that 1-stage prosthesis exchange procedures may be efficient. Further, It shows that biofilm production by this strain was not marginal and directly impacted clinical and surgical management.
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Colli P, Fellas A, Trüeb RM. Staphylococcus lugdunensis and Trichophyton tonsurans Infection in Synthetic Hair Implants. Int J Trichology 2017; 9:82-86. [PMID: 28839395 PMCID: PMC5551314 DOI: 10.4103/ijt.ijt_112_16] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Synthetic hair implants are considered in alopecia when the patient requests an immediate result with minor surgery and with a poor donor area. However, the procedure has historically been marred by poor quality fiber and performance resulting in serious complications. Nevertheless, companies continue to market the procedure with the claim that previous problems have been sorted out. We report a case of inflammation in synthetic hair implants, in which microbiological studies revealed infection with Staphylococcus lugdunensis and Trichophyton tonsurans. The procedure was performed by a hair stylist. The patient experienced symptoms at the site of the implants. Nevertheless, he had the artificial implants repeated. Despite persistent symptoms of peri-implantitis, medical assistance was not sought. It is the view of the International Society of Hair Restoration Surgery that artificial hair fiber implants represent a surgical procedure and as such should be confined to experienced and licensed medical doctors in a reputable medical clinic. As with any surgical procedure, complications may occur which should be handled under a physician's care. Usually, problems result from lack of asepsis during the procedure, lack of patient hygiene, excessive quantity and density of implanted fibers in one session, incorrect choice of implant area, and poor aftercare. In cases, where implant-related problems cannot be resolved within 15 days of antibiotic and anti-inflammatory treatment, an extended microbiological work-up is warranted, and it may be necessary to remove the fibers that may harbor microbial biofilms.
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Affiliation(s)
- Pedro Colli
- Department of Dermatology and Radiotherapy, Paulista State University, UNESP, Botucatu Medical School, São Paulo, Brazil
| | - Antonia Fellas
- Center for Dermatology and Hair Diseases Professor Trüeb, Zurich-Wallisellen, Switzerland
| | - Ralph M Trüeb
- Center for Dermatology and Hair Diseases Professor Trüeb, Zurich-Wallisellen, Switzerland
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Gordon CP, Olson SD, Lister JL, Kavanaugh JS, Horswill AR. Truncated Autoinducing Peptides as Antagonists of Staphylococcus lugdunensis Quorum Sensing. J Med Chem 2016; 59:8879-8888. [PMID: 27585401 DOI: 10.1021/acs.jmedchem.6b00727] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Competitive quorum sensing (QS) antagonism offers a novel strategy for attenuating current multidrug resistant staphylococcal infections. To this end, a series of 10 truncated analogues based on the parent autoinducing peptides (AIPs) of Staphylococcus lugdunensis (groups I and II) and Staphylococcus epidermidis (groups I-III) were sequentially assessed against a newly developed Staphylococcus lugdunensis group I QS reporter strain. The truncated analogues based upon Staphylococcus lugdunensis AIP-1 (1) and AIP-2 (2) displayed respective IC50 values of 0.2 ± 0.01 μM and 0.3 ± 0.01 μM, while the truncated analogue of the Staphylococcus epidermidis AIP-1 (3) elicited an IC50 value of 2.7 ± 0.1 μM. These findings demonstrate the potential of cognate and "crosstalk" competitive quorum sensing inhibition using truncated AIPs as a means of attenuating staphylococcal infections in species beyond Staphylococcus aureus.
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Affiliation(s)
- Christopher P Gordon
- School of Science and Health, Western Sydney University , Locked Bag 1797, Penrith South Dc, NSW 2751, Australia
| | - Shondra D Olson
- Department of Microbiology, Roy J. and Lucille A. Carver College of Medicine, University of Iowa , Iowa City, Iowa 52242, United States
| | - Jessica L Lister
- Department of Microbiology, Roy J. and Lucille A. Carver College of Medicine, University of Iowa , Iowa City, Iowa 52242, United States
| | - Jeffrey S Kavanaugh
- Department of Microbiology, Roy J. and Lucille A. Carver College of Medicine, University of Iowa , Iowa City, Iowa 52242, United States
| | - Alexander R Horswill
- Department of Microbiology, Roy J. and Lucille A. Carver College of Medicine, University of Iowa , Iowa City, Iowa 52242, United States
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Buckley PS, Kane J, Ciccotti MG. Immunoglobulin G Deficiency-Associated Septic Arthritis Identified Following Corticosteroid Injection and Knee Arthroscopy: A Case Report. JBJS Case Connect 2016; 6:e69. [PMID: 29252646 DOI: 10.2106/jbjs.cc.15.00254] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
CASE We present the case of a patient who had worsening pain following intra-articular knee corticosteroid injection and who subsequently underwent arthroscopic partial meniscectomy with positive intraoperative cultures for Staphylococcus lugdunensis. He was treated with multiple irrigation and debridements, and subsequent work-up yielded a diagnosis of immunoglobulin G (IgG) deficiency. We believe that it is critical to maintain a high index of suspicion for underlying immune deficiency when faced with atypical presentations of infections or atypical bacteria in otherwise healthy patients. CONCLUSION Knee arthroscopy for the treatment of meniscal tears is one of the most common procedures performed by orthopaedic surgeons in the United States. Patients with an antibody deficiency may have a limited or reduced immune response when presented with a pathogen foreign to the body. This may place the patient at an increased risk of infection and should be addressed through referral to the appropriate subspecialists when recurrent or atypical infection presents to the orthopaedic surgeon.
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Affiliation(s)
- Patrick S Buckley
- Department of Orthopaedic Surgery, Rothman Institute at Thomas Jefferson University, Philadelphia, Pennsylvania
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19
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Retropubic Midurethral Sling Colonization With Staphylococcus lugdunensis. Female Pelvic Med Reconstr Surg 2016; 22:e22-3. [PMID: 27054795 DOI: 10.1097/spv.0000000000000281] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
BACKGROUND We present a case of Staphylococcus lugdunensis colonization of a midurethral sling. Staphylococcus lugdunensis is a common skin colonizer and has been isolated in cases of implanted prosthetic devices. CASE A 52-year-old female presented with suprapubic pain and recurrent urinary tract infections with S. lugdunensis starting 3 months after a retropubic sling procedure. After several months of continued pain and a suspicion of a mesh-related infection, the sling was removed. Culture of the sling material grew oxacillin-susceptible S. lugdunensis. Her symptoms resolved after sling removal and a postoperative course of antibiotics. CONCLUSIONS To our knowledge, this is the first reported case of S. lugdunensis colonization of vaginal mesh. Surgeons should be aware and knowledgeable about the possible complications arising from insertion of midurethral slings.
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Lin JF, Cheng CW, Kuo AJ, Liu TP, Yang CC, Huang CT, Lee MH, Lu JJ. Clinical experience and microbiologic characteristics of invasive Staphylococcus lugdunensis infection in a tertiary center in northern Taiwan. JOURNAL OF MICROBIOLOGY, IMMUNOLOGY, AND INFECTION = WEI MIAN YU GAN RAN ZA ZHI 2015; 48:406-12. [DOI: 10.1016/j.jmii.2013.12.010] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2013] [Revised: 12/18/2013] [Accepted: 12/18/2013] [Indexed: 11/27/2022]
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21
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Schandiz H, Olav Hermansen N, Jørgensen T, Roald B. Staphylococcus lugdunensisendocarditis following vasectomy - report of a case history and review of the literature. APMIS 2015; 123:726-9. [DOI: 10.1111/apm.12396] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2015] [Accepted: 03/08/2015] [Indexed: 11/30/2022]
Affiliation(s)
| | | | | | - Borghild Roald
- Department of Pathology; Oslo University Hospital; Oslo Norway
- Faculty of Medicine; Institute of Clinical Medicine; University of Oslo; Oslo Norway
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22
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Di Benedetto N, Calabuig E, González E, Salavert M. Dolor crónico y lesión única en metáfisis del radio. Enferm Infecc Microbiol Clin 2015; 33:357-8. [DOI: 10.1016/j.eimc.2014.11.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2014] [Revised: 11/12/2014] [Accepted: 11/21/2014] [Indexed: 11/29/2022]
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23
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Mehmood M, Khasawneh FA. Staphylococcus lugdunensis gluteal abscess in a patient with end stage renal disease on hemodialysis. Clin Pract 2015; 5:706. [PMID: 25918631 PMCID: PMC4387343 DOI: 10.4081/cp.2015.706] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2014] [Revised: 10/08/2014] [Accepted: 11/12/2014] [Indexed: 11/23/2022] Open
Abstract
A 57-year-old end stage renal disease patient on hemodialysis (HD) presented with sepsis secondary to right buttock abscess and overlying cellulitis. She was started on broad-spectrum antibiotic therapy and underwent incision and drainage with marked improvement. Her cultures grew methicillin-resistant Staphylococcus lugdunensis. This bacterium is more virulent than other coagulase negative staphylococci and has been implicated in causing a variety of serious infections but it has been underreported as a cause of skin infections in HD patients and possible other patient populations.
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Affiliation(s)
- Mansoor Mehmood
- Section of Infectious Diseases, Department of Internal Medicine, Texas Tech University, Health Sciences Center , Amarillo, TX, USA
| | - Faisal A Khasawneh
- Section of Infectious Diseases, Department of Internal Medicine, Texas Tech University, Health Sciences Center , Amarillo, TX, USA
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Müller B, Walther-Wenke G, Kalus M, Alt T, Bux J, Zeiler T, Schottstedt V. Routine bacterial screening of platelet concentrates by flow cytometry and its impact on product safety and supply. Vox Sang 2014; 108:209-18. [PMID: 25469957 DOI: 10.1111/vox.12214] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2014] [Revised: 08/29/2014] [Accepted: 09/29/2014] [Indexed: 12/01/2022]
Abstract
BACKGROUND AND OBJECTIVES Bacterial contamination represents the major infectious hazard associated with transfusion of platelet concentrates (PCs). As bacterial screening of PCs is not mandatory in Germany, the BactiFlow flow cytometry test has been introduced as a rapid detection method to increase product safety. MATERIALS AND METHODS During a period of 25 months, a total of 34 631 PCs (26 411 pooled and 8220 apheresis-derived PCs) were tested at the end of day 3 of their shelf life using the BactiFlow system. PCs initially reactive in BactiFlow testing and expired PCs not reactive in BactiFlow on day 3 were also investigated by the BacT/ALERT system and by microbiological cultivation in order to identify the contaminating bacterial species and to confirm reactive BactiFlow results. RESULTS Two hundred and twenty-eight PCs (0.7%) had an initially reactive result, 24 of them remained reactive in a second test run. Out of these reproducible reactive BactiFlow results, 12 could not be verified by parallel BacT/ALERT culturing, resulting in a confirmed false-positive rate of 0.03%. The bacterial species were identified as S. aureus, S. epidermidis, S. dysgalactiae ssp. equisimilis and B. cereus. In 10 out of 9017 expired PCs (0.11%), a confirmed-positive result was obtained in the BacT/ALERT system which had a negative result in the BactiFlow system. CONCLUSION Testing of PCs by BactiFlow was successfully implemented in our blood donation service and proved sufficient as a rapid and reliable screening method. False reactive results are in an acceptable range since the transfusion of 12 bacterially contaminated PCs was prevented.
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Affiliation(s)
- B Müller
- GRC-West Blood Donation Service, Central Laboratory Hagen, Hagen, Germany
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25
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Donoghue S, Vekic D, Wehrhahn M, Whitfeld M. Staphylococcus lugdunensis: case report and discussion. Australas J Dermatol 2014; 55:301-3. [DOI: 10.1111/ajd.12209] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Stephen Donoghue
- Skin and Cancer Foundation Darlinghurst Sydney New South Wales Australia
| | - Dunja Vekic
- St Vincent's Hospital Sydney New South Wales Australia
| | | | - Margot Whitfeld
- Skin and Cancer Foundation Darlinghurst Sydney New South Wales Australia
- St Vincent's Hospital Sydney New South Wales Australia
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Bhumbra S, Mahboubi M, Blackwood RA. Staphylococcus lugdunensis: Novel Organism causing Cochlear Implant Infection. Infect Dis Rep 2014; 6:5406. [PMID: 25002962 PMCID: PMC4083301 DOI: 10.4081/idr.2014.5406] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/26/2014] [Revised: 04/30/2014] [Accepted: 05/07/2014] [Indexed: 11/23/2022] Open
Abstract
A majority of cochlear implant infections are caused by Staphylococcus aureus or Pseudomonas aeruginosa. Reported here is a pediatric patient with a cochlear implant infection caused by methicillin-resistant Staphylococcus lugdunensis, a coagulase-negative Staphylococcus that has only recently been determined to be clinically relevant (1988). Unlike other coagulase-negative Staphylococcus, it is more aggressive, carrying a greater potential for tissue destruction. In pediatrics, the organism is uncommon, poorly described, and generally pan-susceptible. Described herein is the presentation and management of this unusual organism in a pediatric setting.
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Affiliation(s)
- Samina Bhumbra
- Division of Pediatric Infectious Diseases, University of Michigan , Ann Arbor, MI, USA
| | - Mona Mahboubi
- Division of Pediatric Infectious Diseases, University of Michigan , Ann Arbor, MI, USA
| | - R Alexander Blackwood
- Division of Pediatric Infectious Diseases, University of Michigan , Ann Arbor, MI, USA
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27
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Mitral valve repair for Staphylococcus lugdunensis infective endocarditis: report of a case. Surg Today 2013; 44:1946-8. [DOI: 10.1007/s00595-013-0633-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2012] [Accepted: 04/21/2013] [Indexed: 10/26/2022]
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28
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Marchocki Z, Collins K, Lehane E, Reilly PO, O'Donoghue K. Staphylococcus lugdunensis cultured from the amniotic fluid at Caesarean Section. PLoS One 2013; 8:e56373. [PMID: 23409177 PMCID: PMC3567050 DOI: 10.1371/journal.pone.0056373] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2012] [Accepted: 01/08/2013] [Indexed: 11/19/2022] Open
Abstract
Staphylococcus lugdunensis is a virulent coagulase-negative staphylococcus. It behaves like and can be mistaken in culture for Staphylococcus aureus. While originally thought to be a skin commensal rarely responsible for opportunistic infection, it was rapidly established as a significant human pathogen. It has been mainly associated with native and prosthetic valve endocarditis, osteomyelitis, and skin and soft tissue cellulitis, but has also been reported as a cause of fasciitis as well as peritonitis. Staphylococcus lugdunensis has been reported as a cause of endometritis but has not been previously isolated from amniotic fluid. Here, amniotic fluid samples were collected in the course of a larger study on amniotic fluid bacteriology, with prior ethical approval and informed patient consent. Amniotic fluid was obtained at Caesarean Section by direct needle aspiration from the intact amnion. Analysis with Staphylococcal API test kits led to identification of Staphylococcus lugdunensis in two cases. The clinical significance of the finding in these reported cases is undetermined. Staphylococcus lugdunensis has been shown to be a cause of serious and potentially fatal morbidities, but this is the first report of its culture from amniotic fluid. As caesarean delivery is accepted as the single most important factor associated with post-partum infectious complications in both mother and neonate, the identification of this pathogen is a new concern.
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Affiliation(s)
- Zbigniew Marchocki
- Anu Research Centre, Department of Obstetrics and Gynaecology, University College Cork, Cork University Maternity Hospital, Cork, Ireland
| | - Kevin Collins
- Department of Microbiology, University College Cork, Cork, Ireland
| | - Eimear Lehane
- Department of Microbiology, University College Cork, Cork, Ireland
| | - Paddy O' Reilly
- Department of Microbiology, University College Cork, Cork, Ireland
| | - Keelin O'Donoghue
- Anu Research Centre, Department of Obstetrics and Gynaecology, University College Cork, Cork University Maternity Hospital, Cork, Ireland
- * E-mail:
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Reikvam H, Power Ø, Høvding P, Lindemann PC, Sjursen H. [A man with pain following a knee operation]. TIDSSKRIFT FOR DEN NORSKE LEGEFORENING 2012; 132:1472-4. [PMID: 22766823 DOI: 10.4045/tidsskr.12.0064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022] Open
Abstract
BACKGROUND Infection after arthroscopy is a rare, but feared complication. Aggressive infection with atypical microbiological agents severely complicates the clinical evaluation. CASE PRESENTATION A man in his thirties, previously healthy man had undergone elective knee arthroscopy with synovectomy. Eight days after surgery he was admitted to hospital with swelling and pain in the operated knee. Re-arthroscopy revealed bleeding in the affected joint, but no obvious signs of infection. The patient developed severe pain, fever and elevated infection parameters. Staphylococcus lugdunensis was detected in the joint fluid taken during re-arthroscopy. He was treated with a combination of antibiotics, including cloxacillin, gentamicin and linezolid, and made a full recovery after treatment. INTERPRETATION S lugdunensis is a highly virulent, coagulase-negative staphylococcus, capable of causing significant infections. It should never be dismissed as a contaminant without careful review.
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Affiliation(s)
- Håkon Reikvam
- Medisinsk avdeling, Haukeland universitetssykehus, Institutt for indremedisin, Medisinsk-odontologisk fakultet, Universitetet i Bergen, Norway
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