1
|
Niinuma Y, Kagami K, Sugawara M, Takekuma Y. The crucial relationship between vancomycin minimum inhibitory concentration and therapeutic efficacy against methicillin-resistant coagulase-negative staphylococci. J Chemother 2024:1-8. [PMID: 39185730 DOI: 10.1080/1120009x.2024.2394326] [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: 06/03/2024] [Revised: 07/31/2024] [Accepted: 08/13/2024] [Indexed: 08/27/2024]
Abstract
The area under the curve (AUC)/minimum inhibitory concentration (MIC) ratio was used as an indicator of the clinical efficacy of vancomycin. However, the target AUC/MIC has not been set for methicillin-resistant coagulase-negative staphylococci (MR-CNS), and the effectiveness of vancomycin in strains with high MIC is unknown. Therefore, we aimed to investigate the relationship between the vancomycin MIC and therapeutic efficacy in patients with MR-CNS bacteremia. The primary outcome was the difference in treatment failure rate when the MR-CNS vancomycin MIC was 1 or 2 µg/mL. The treatment failure rate did not significantly differ between the two groups (MIC 1 vs. MIC 2: 27.0% vs. 31.0%; p = 0.779). As a result of multivariate analysis, AUC/MIC0-24 h ≤230 was extracted as risk factor for treatment failure, suggesting the importance of a sufficient initial loading dose and early blood concentration monitoring to increase AUC/MIC0-24 h for successful treatment.
Collapse
Affiliation(s)
- Yusuke Niinuma
- Department of Pharmacy, Hokkaido University Hospital, Sapporo, Japan
| | - Keisuke Kagami
- Department of Pharmacy, Hokkaido University Hospital, Sapporo, Japan
| | - Mitsuru Sugawara
- Department of Pharmacy, Hokkaido University Hospital, Sapporo, Japan
- Division of Pharmasciences, Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo, Japan
| | - Yoh Takekuma
- Department of Pharmacy, Hokkaido University Hospital, Sapporo, Japan
| |
Collapse
|
2
|
Wheat W, Simiyu B, Andonie G, Bellfi L. Clinical Impact of Vancomycin MIC on Outcomes in Patients With Coagulase-negative Staphylococcal Bacteremia. Clin Ther 2024; 46:444-450. [PMID: 38493003 DOI: 10.1016/j.clinthera.2024.01.012] [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: 10/18/2023] [Revised: 01/18/2024] [Accepted: 01/31/2024] [Indexed: 03/18/2024]
Abstract
PURPOSE Coagulase-negative staphylococci (CoNS) are Gram-positive organisms that are a known component of normal skin flora and the most common cause of nosocomial bacteremia. For CoNS species, the vancomycin MIC breakpoint for susceptibility set by the Clinical and Laboratory Standards Institute is ≤4 µg/mL. There has been published reports of vancomycin heteroresistance in CoNS with vancomycin MICs of 2 to 4 µg/mL. The aim of this retrospective cohort analysis was to assess the clinical impact of vancomycin MICs <2 µg/mL versus ≥2 µg/mL in adult patients with CoNS bloodstream infections. METHODS Adult patients admitted to University Medical Center New Orleans with a blood culture positive for CoNS were assessed. The primary outcome was difference in 30-day mortality. Secondary outcomes were in-hospital, all-cause mortality; duration of bacteremia; hospital length of stay; and percentage of oxacillin-resistant CoNS. FINDINGS There was no difference in mortality in the vancomycin MIC <2 µg/mL group versus the vancomycin MIC ≥2 µg/mL group at 30 days (15.4% vs 17.4%; P = 1). In-hospital, all-cause mortality was also not different between groups (11.5% vs 13%; P = 1). Hospital length of stay between groups was 28.2 days versus 21 days (P = 0.692). Median duration of bacteremia was 1 day in both groups (P = 0.975), and median scheduled duration of antibiotic therapy was 14.9 days and 19.5 days (P = 0.385). The source and mode of acquisition of CoNS were similar between groups. Of all CoNS isolates, 58.7% (44 of 75) were oxacillin resistant. Staphylococcus epidermidis was the most common CoNS species at 66.7% (50 of 75). Of all isolates, 30.7% (23 of 75) had a vancomycin MIC ≥2 µg/mL, and 87% (20 of 23) of these were S. epidermidis. There was a higher percentage of S. epidermidis in the vancomycin MIC ≥2 µg/mL group than in the MIC <2 µg/mL group (87% vs 57.7%; P = 0.012). CoNS with a vancomycin MIC ≥2 µg/mL were also more likely to be oxacillin resistant (78.3% vs 50%; P = 0.005). IMPLICATIONS There was no difference in clinical outcomes in adult patients with a CoNS bloodstream infection with a vancomycin MIC <2 µg/mL versus ≥2 µg/mL. At present, vancomycin remains appropriate empiric therapy for CoNS bloodstream infection. Further research is needed to determine if there is a true clinical impact of a vancomycin MIC ≥2 µg/mL in CoNS infections.
Collapse
Affiliation(s)
- Wade Wheat
- University Medical Center New Orleans, New Orleans, Louisiana, USA
| | - Brenda Simiyu
- University Medical Center New Orleans, New Orleans, Louisiana, USA
| | - Gabriela Andonie
- University Medical Center New Orleans, New Orleans, Louisiana, USA; University of Louisiana Monroe College of Pharmacy, Monroe, Louisiana, USA.
| | - Lillian Bellfi
- University Medical Center New Orleans, New Orleans, Louisiana, USA
| |
Collapse
|
3
|
Tomoyama A, Kobayashi N, Choe H, Ike H, Yukizawa Y, Higashihira S, Takagawa S, Kumagai K, Inaba Y. A Comparison of the Minimum Inhibitory Concentration of Antibiotics in Staphylococcus Species Isolated From Orthopedic and Respiratory Medicine Infections. Cureus 2023; 15:e49535. [PMID: 38156162 PMCID: PMC10753157 DOI: 10.7759/cureus.49535] [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: 11/27/2023] [Indexed: 12/30/2023] Open
Abstract
INTRODUCTION Antibiotic susceptibility is very important for the successful treatment of orthopedic infections, particularly for implant-related infections. While the minimum inhibitory concentrations (MICs) of Staphylococcus species were well investigated for the isolates from the respiratory tract, investigations for orthopedic pathogens are very limited. We investigated the antibiotic MIC values of Staphylococcus species isolated from orthopedic infections and compared them with those of respiratory medicine isolates used as a control. METHODS The MICs of vancomycin (VCM), arbekacin (ABK), teicoplanin (TEIC), linezolid (LZD), and rifampicin (RFP) of a total of consecutive 259 (89 orthopedic and 170 respiratory) Staphylococcus speciesisolated in our laboratory from January 2013 to July 2016 were retrospectively reviewed. Differences between the MICs of each antibiotic in orthopedic and respiratory samples were determined. RESULTS The number of methicillin-sensitive Staphylococcus aureus (MSSA) with a VCM MIC of <0.5 μg/mL among respiratory isolates was significantly higher than that among orthopedic isolates, while those with a MIC of 2 μg/mL were significantly lower (P = 0.0078). The proportion of methicillin-resistant coagulase-negative staphylococci (MRCNS) isolates with a VCM MIC of 2 μg/mL was significantly higher in orthopedic samples than that of methicillin-resistant Staphylococcus aureus (MRSA) (P < 0.001) in respiratory isolates. The proportion of MRCNS orthopedic isolates with an RFP MIC of >2 μg/mL was significantly higher (P = 0.0058) than that of other orthopedic staphylococci. CONCLUSIONS The VCM MICs of Staphylococcus species from orthopedic infections were higher than those of respiratory samples, particularly MRCNS from implant-related samples.
Collapse
Affiliation(s)
- Akito Tomoyama
- Department of Laboratory Medicine, Yokohama City University Hospital, Yokohama, JPN
| | - Naomi Kobayashi
- Department of Orthopaedic Surgery, Yokohama City University Medical Center, Yokohama, JPN
| | - Hyonmin Choe
- Department of Orthopaedic Surgery, Yokohama City University School of Medicine, Yokohama, JPN
| | - Hiroyuki Ike
- Department of Orthopaedic Surgery, Yokohama City University School of Medicine, Yokohama, JPN
| | - Yohei Yukizawa
- Department of Orthopaedic Surgery, Yokohama City University Medical Center, Yokohama, JPN
| | - Shota Higashihira
- Department of Orthopaedic Surgery, Yokohama City University Medical Center, Yokohama, JPN
| | - Shu Takagawa
- Department of Orthopaedic Surgery, Yokohama City University Medical Center, Yokohama, JPN
| | - Ken Kumagai
- Department of Orthopaedic Surgery, Yokohama City University School of Medicine, Yokohama, JPN
| | - Yutaka Inaba
- Department of Orthopaedic Surgery, Yokohama City University School of Medicine, Yokohama, JPN
| |
Collapse
|
4
|
Popa-Fotea NM, Scafa-Udriste A, Iulia G, Scarlatescu AI, Oprescu N, Mihai C, Micheu MM. Increasing clinical impact and microbiological difficulties in diagnosing coagulase-negative staphylococci in infective endocarditis - a review starting from a series of cases. Curr Med Res Opin 2022; 38:2077-2083. [PMID: 36073863 DOI: 10.1080/03007995.2022.2122673] [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] [Indexed: 11/03/2022]
Abstract
Coagulase-negative staphylococci (CoNS) are an emergent aetiology of infective endocarditis (IE) on native valves in previously healthy individuals, its presence is associated with prosthetic valves or with other cardiac implants. The identification of CoNS in cultures was customarily seen as contamination, but more recent epidemiological studies have revealed an increasing number of causative and virulent new CoNS species. Starting from two clinical cases of community-acquired CoNS IE on native valves, the review debates the difficulties in identifying CoNS as the causal pathogens, comprising differentiation of contamination from infection in IE, alongside the challenges raised by antibiotic resistance. Even if the risk of CoNS IE is more increased in subjects with prosthetic materials or other foreign devices and immunodeficiencies, native valve infections with these staphylococci are increasing and should be considered important pathogens in IE. Despite the lack of sensitive and specific tools to correctly differentiate contamination from infection in CoNS endocarditis, a comprehensive evaluation with clinical and paraclinical data accurately succeeds in establishing the diagnosis. The genetic profile of CoNS predisposes to antibiotic multi-resistance, making the treatment of IE challenging; the rapid identification of antibiotic susceptibility is essential to prescribe the appropriate therapy and improve outcomes.
Collapse
Affiliation(s)
- Nicoleta-Monica Popa-Fotea
- University of Medicine and Pharmacy "Carol Davila", Bucharest, Romania
- Emergency Clinical Hospital, Bucharest, Romania
| | - Alexandru Scafa-Udriste
- University of Medicine and Pharmacy "Carol Davila", Bucharest, Romania
- Emergency Clinical Hospital, Bucharest, Romania
| | | | | | | | | | | |
Collapse
|
5
|
Sanghavi R, Ravikumar N, Sarodaya V, Haq M, Sherif M, Harky A. Outcomes in cardiac implantable electronic device-related infective endocarditis: a systematic review of current literature. Future Cardiol 2022; 18:891-899. [PMID: 36073290 DOI: 10.2217/fca-2021-0155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Abstract
Aim: Cardiac implantable electronic device infective endocarditis is a serious infection with poor prognosis. Materials & methods: The systematic review of the literature was conducted using searches from the various databases. We included studies published between January 2010 and June 2021. Results: A total of 35 articles met the inclusion criteria. Patients were approximately 70 years old and an average of 71.2% of patients were male. The most common presenting feature was a fever. The modified Duke criteria was used to aid diagnosis. Management entailed extraction of the cardiac implantable electronic device in 80.5% of the studies. The overall mortality rates ranged from 4 to 36%. The most frequently isolated organism was Staphylococcus aureus. Conclusion: Cardiac implantable electronic device infective endocarditis needs timely diagnosis and effective management for promising outcomes.
Collapse
Affiliation(s)
- Ria Sanghavi
- Department of Medical Sciences, College of Life Sciences, University Of Leicester, Leicester, UK
| | - Nidhruv Ravikumar
- Department of Medicine, School of Medicine, Queen's University Belfast, Belfast, UK
| | - Varun Sarodaya
- Department of General Surgery, Junior Clinical fellow, Barts Health NHS Trust, London, UK
| | - Mawiyah Haq
- Faculty of Medicine, St George's University of London, London, UK
| | - Mohamed Sherif
- Department of Cardiothoracic Surgery, Northern General Hospital, Sheffield, UK
| | - Amer Harky
- Department of Cardiothoracic Surgery, Liverpool Heart & Chest Hospital, Liverpool, UK
| |
Collapse
|
6
|
Clinical Features and Outcome of Infective Endocarditis in a University Hospital in Romania. ACTA ACUST UNITED AC 2021; 57:medicina57020158. [PMID: 33578787 PMCID: PMC7916483 DOI: 10.3390/medicina57020158] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2020] [Revised: 01/31/2021] [Accepted: 02/06/2021] [Indexed: 11/17/2022]
Abstract
Background and Objectives: Characterization of patients with endocarditis regarding demographic, clinical, biological and imagistic data, blood culture results and possible correlation between different etiologic factors and host status characteristics. Material and methods: This is a retrospective observational descriptive study conducted on patients older than 18 years admitted in the past 10 years, in the Cardiology Clinic of the Clinical County Emergency Hospital Oradea Romania, with clinical suspicion of bacterial endocarditis. Demographic data, clinical, paraclinical investigations and outcome were registered and analyzed. Results: 92 patients with definite infective endocarditis (IE) according to modified Duke criteria were included. The mean age of patients was 63.80 ± 13.45 years. A percent of 32.6% had health care associated invasive procedure performed in the 6 months before diagnosis of endocarditis. Charlson's comorbidity index number was 3.53 ± 2.029. Most common clinical symptoms and signs were: shortness of breath, cardiac murmur, fever. Sixty-six patients had native valve endocarditis, 26 patients had prosthetic valve endocarditis and one patient was with congenital heart disease. Blood cultures were positive in 61 patients. Among positive culture patient's staphylococcus group was the most frequently involved: Staphylococcus aureus (19.6%) and coagulase negative Staphylococcus (18.5%). Most frequent complications were heart failure, acute renal failure and embolic events. Conclusions: Staphylococcus aureus IE was associated with the presence of large vegetations, prosthetic valve endocarditis and intracardiac abscess. Coagulase negative Staphylococcus (CoNS) infection was associated with prosthetic valve dysfunction. Streptococcus gallolyticus etiology correlated with ischemic embolic stroke and the presence of large vegetations. Cardiovascular surgery was recommended in 67.4% of patients but was performed only on half of them. In hospital death occurred in 33.7% of patients and independent predictors of mortality were congestive heart failure and septic shock.
Collapse
|
7
|
Noshak MA, Rezaee MA, Hasani A, Mirzaii M. The Role of the Coagulase-negative Staphylococci (CoNS) in Infective Endocarditis; A Narrative Review from 2000 to 2020. Curr Pharm Biotechnol 2020; 21:1140-1153. [PMID: 32324510 DOI: 10.2174/1389201021666200423110359] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2020] [Revised: 03/12/2020] [Accepted: 04/02/2020] [Indexed: 12/15/2022]
Abstract
Coagulase-negative staphylococci (CoNS) are part of the microbiota of human skin and rarely linked with soft tissue infections. In recent years, CoNS species considered as one of the major nosocomial pathogens and can cause several infections such as catheter-acquired sepsis, skin infection, urinary tract infection, endophthalmitis, central nervous system shunt infection, surgical site infections, and foreign body infection. These microorganisms have a significant impact on human life and health and, as typical opportunists, cause peritonitis in individuals undergoing peritoneal dialysis. Moreover, it is revealed that these potential pathogens are mainly related to the use of indwelling or implanted in a foreign body and cause infective endocarditis (both native valve endocarditis and prosthetic valve endocarditis) in patients. In general, approximately eight percent of all cases of native valve endocarditis is associated with CoNS species, and these organisms cause death in 25% of all native valve endocarditis cases. Moreover, it is revealed that methicillin-resistant CoNS species cause 60 % of all prosthetic valve endocarditis cases. In this review, we describe the role of the CoNS species in infective endocarditis, and we explicated the reported cases of CoNS infective endocarditis in the literature from 2000 to 2020 to determine the role of CoNS in the process of infective endocarditis.
Collapse
Affiliation(s)
- Mohammad A Noshak
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran,Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mohammad A Rezaee
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran,Department of Medical Microbiology, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Alka Hasani
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran,Department of Medical Microbiology, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mehdi Mirzaii
- Department of Microbiology, School of Medicine, Shahroud University of Medical Sciences, Shahroud, Iran
| |
Collapse
|
8
|
Azimi T, Mirzadeh M, Sabour S, Nasser A, Fallah F, Pourmand MR. Coagulase-negative staphylococci (CoNS) meningitis: a narrative review of the literature from 2000 to 2020. New Microbes New Infect 2020; 37:100755. [PMID: 33014383 PMCID: PMC7522803 DOI: 10.1016/j.nmni.2020.100755] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Revised: 08/23/2020] [Accepted: 09/02/2020] [Indexed: 02/08/2023] Open
Abstract
Coagulase-negative staphylococci (CoNS) are recognized as comprising the main part of human normal microbiota and are rarely associated with severe and intensive infections. However, these organisms can cause a number of infections in humans, especially immunocompromised patients and neonates. Bacterial meningitis, as an important and acute infection in the central nervous system, is still a major global health challenge and a serious infectious disease, causing a high rate of mortality and morbidity. CoNS as causative agents of meningitis are generally related to trauma or direct implantation of foreign bodies and the presence of a cerebrospinal fluid shunt. Numerous epidemiologic and clinical studies have shown that different CoNS isolates such as Staphylococcus capitis, Staphylococcus lugdunensis, Staphylococcus hominis, Staphylococcus epidermidis, Staphylococcus schleiferi, Staphylococcus saprophyticus, Staphylococcus warneri and Staphylococcus haemolyticus are more frequently associated with meningitis. This study attempts to determine the role of CoNS in meningitis and reviews the reported cases of meningitis induced by CoNS from the year 2000 to 2020 in the literature.
Collapse
Affiliation(s)
- T Azimi
- Pediatric Infections Research Center, Tehran, Iran.,Department of Pathobiology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - M Mirzadeh
- Department of Surgery, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - S Sabour
- Department of Microbiology, School of Medicine, Ardabil University of Medical Science, Ardabil, Iran
| | - A Nasser
- Clinical Microbiology Research Center, Ilam, Iran.,Department of Medical Microbiology, School of Medicine, Ilam University of Medical Science, Ilam, Iran
| | - F Fallah
- Pediatric Infections Research Center, Tehran, Iran
| | - M R Pourmand
- Department of Pathobiology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| |
Collapse
|
9
|
Michalik M, Samet A, Podbielska-Kubera A, Savini V, Międzobrodzki J, Kosecka-Strojek M. Coagulase-negative staphylococci (CoNS) as a significant etiological factor of laryngological infections: a review. Ann Clin Microbiol Antimicrob 2020; 19:26. [PMID: 32498711 PMCID: PMC7271473 DOI: 10.1186/s12941-020-00367-x] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Accepted: 05/25/2020] [Indexed: 12/18/2022] Open
Abstract
This review article shows that coagulase-negative staphylococci (CoNS) are widely responsible for laryngological diseases. General characteristics of CoNS infections are shown in the introduction, and the pathogenicity in terms of virulence determinants, biofilm formation and genetic regulation mechanisms of these bacteria is presented in the first part of the paper to better display the virulence potential of staphylococci. The PubMed search keywords were as follows: CoNS and: nares infections, nasal polyps, rhinosinusitis, necrosing sinusitis, periprosthetic joint infection, pharyngitis, osteomyelitis of skull and neck bones, tonsillitis and recurrent tonsillitis. A list of laryngological infections and those related to skull and neck bones was presented with descriptions of the following diseases: rhinosinusitis, necrotizing sinusitis, nasal polyps, nares and nasal skin infections, periprosthetic joint infections, osteomyelitis, pharyngitis, and tonsillitis. Species identification and diagnostic problems challenging for diagnosticians are presented. Concluding remarks regarding the presence of CoNS in humans and their distribution, particularly under the effect of facilitating factors, are mentioned.
Collapse
Affiliation(s)
| | | | | | - Vincenzo Savini
- Clinical Microbiology and Virology, Spirito Santo Hospital, Pescara, PE, Italy
| | - Jacek Międzobrodzki
- Department of Microbiology, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Kraków, Poland
| | - Maja Kosecka-Strojek
- Department of Microbiology, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Kraków, Poland.
| |
Collapse
|
10
|
Hidalgo-Tenorio C, Gálvez J, Martínez-Marcos FJ, Plata-Ciezar A, De La Torre-Lima J, López-Cortés LE, Noureddine M, Reguera JM, Vinuesa D, García MV, Ojeda G, Luque R, Lomas JM, Lepe JA, de Alarcón A. Clinical and prognostic differences between methicillin-resistant and methicillin-susceptible Staphylococcus aureus infective endocarditis. BMC Infect Dis 2020; 20:160. [PMID: 32085732 PMCID: PMC7035751 DOI: 10.1186/s12879-020-4895-1] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2019] [Accepted: 02/17/2020] [Indexed: 12/14/2022] Open
Abstract
Background S. aureus (SA) infective endocarditis (IE) has a very high mortality, attributed to the age and comorbidities of patients, inadequate or delayed antibiotic treatment, and methicillin resistance, among other causes. The main study objective was to analyze epidemiological and clinical differences between IE by methicillin-resistant versus methicillin-susceptible SA (MRSA vs. MSSA) and to examine prognostic factors for SA endocarditis, including methicillin resistance and vancomycin minimum inhibitory concentration (MIC) values > 1 μg/mL to MRSA. Methods Patients with SA endocarditis were consecutively and prospectively recruited from the Andalusia endocarditis cohort between 1984 and January 2017. Results We studied 437 patients with SA endocarditis, which was MRSA in 13.5% of cases. A greater likelihood of history of COPD (OR 3.19; 95% CI 1.41–7.23), invasive procedures, or recognized infection focus in the 3 months before IE onset (OR 2.9; 95% CI 1.14–7.65) and of diagnostic delay (OR 3.94; 95% CI 1.64–9.5) was observed in patients with MRSA versus MSSA endocarditis. The one-year mortality rate due to SA endocarditis was 44.3% and associated with decade of endocarditis onset (1985–1999) (OR 8.391; 95% CI (2.82–24.9); 2000–2009 (OR 6.4; 95% CI 2.92–14.06); active neoplasm (OR 6.63; 95% CI 1.7–25.5) and sepsis (OR 2.28; 95% CI 1.053–4.9). Methicillin resistance was not associated with higher IE-related mortality (49.7 vs. 43.1%; p = 0.32). Conclusion MRSA IE is associated with COPD, previous invasive procedure or recognized infection focus, and nosocomial or healthcare-related origin. Methicillin resistance does not appear to be a decisive prognostic factor for SA IE.
Collapse
Affiliation(s)
- Carmen Hidalgo-Tenorio
- Department of Infectious Diseases, Hospital Universitario Virgen de las Nieves, Av. de las Fuerzas Armadas n° 2, 18014, Granada, Spain.
| | - Juan Gálvez
- Infectious Disease Service, Hospital Universitario Virgen de la Macarena, Sevilla, Spain
| | | | - Antonio Plata-Ciezar
- Infectious Disease Service, Hospital Regional Universitario Carlos Haya, Málaga, Spain
| | | | | | | | - José M Reguera
- Infectious Disease Service, Hospital Regional Universitario Carlos Haya, Málaga, Spain
| | - David Vinuesa
- Infectious Disease Unit, Hospital Universitario San Cecilio, Granada, Spain
| | - Maria Victoria García
- Infectious Disease Service, Hospital Universitario Virgen de la Victoria, Málaga, Spain
| | - Guillermo Ojeda
- Infectious Disease Service, Hospital Universitario Virgen de la Victoria, Málaga, Spain
| | - Rafael Luque
- Infectious Disease Service, Hospital Universitario Virgen del Rocío, Sevilla, Spain
| | - José Manuel Lomas
- Infectious Disease Service, Oxford University Hospitals NHS Foundation Trust, Oxford, UK
| | - Jose Antonio Lepe
- Infectious Disease Service, Hospital Universitario Virgen del Rocío, Sevilla, Spain
| | - Arístides de Alarcón
- Infectious Disease Service, Hospital Universitario Virgen del Rocío, Sevilla, Spain
| |
Collapse
|
11
|
Watanabe S, Kawakami Y, Kimura H, Murakami S, Miyamoto H, Takatori S, Suemori K, Tanaka M, Tanaka A, Tanaka K, Tauchi H, Maki J, Araki H, Yamaguchi T. Association between daptomycin susceptibility and teicoplanin resistance in Staphylococcus epidermidis. Sci Rep 2019; 9:18533. [PMID: 31811214 PMCID: PMC6898446 DOI: 10.1038/s41598-019-55149-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2019] [Accepted: 11/23/2019] [Indexed: 11/17/2022] Open
Abstract
Staphylococcus epidermidis infections are a common occurrence in hospitals, particularly in catheter-related bloodstream and surgical site infections and infective endocarditis. Higher daptomycin minimum inhibitory concentration (MIC) values may be associated with daptomycin treatment failure among patients with S. epidermidis infections. We therefore conducted a retrospective cohort study to determine the predictive value of daptomycin susceptibility. A retrospective study was undertaken in 1,337 patients with S. epidermidis infections. Data were collected from 1 January 2013 to 31 December 2016 at Ehime University Hospital, and included the following clinicopathological factors for evaluation: age, sex, resistance to vancomycin or teicoplanin, and history of antimicrobial therapy. Multiple analysis was performed using logistic regression to identify factors that independently and significantly affected the daptomycin resistance. Daptomycin-resistant S. epidermidis was identified in 38 (2.8%) patients. According to the multiple analysis, only higher MIC values (≥16 mg/L) for teicoplanin (P < 0.0001) were independently associated with an increased risk of developing daptomycin resistance. In conclusion, higher teicoplanin MIC values may predict resistance to daptomycin treatment in S. epidermidis infections.
Collapse
Affiliation(s)
- Shinichi Watanabe
- Department of Clinical Pharmacy, College of Pharmaceutical Sciences, Matsuyama University, 4-2 Bunkyo-cho, Matsuyama, Ehime, 790-8578, Japan.
| | - Yukinobu Kawakami
- Division of Pharmacy, Ehime University Hospital, 454 Shitsukawa, Toon, Ehime, 791-0295, Japan
| | - Hiroshi Kimura
- Division of Pharmacy, Ehime University Hospital, 454 Shitsukawa, Toon, Ehime, 791-0295, Japan.,Department of Infection Control, Ehime University Hospital, 454 Shitsukawa, Toon, Ehime, 791-0295, Japan
| | - Shinobu Murakami
- Department of Infection Control, Ehime University Hospital, 454 Shitsukawa, Toon, Ehime, 791-0295, Japan
| | - Hitoshi Miyamoto
- Department of Infection Control, Ehime University Hospital, 454 Shitsukawa, Toon, Ehime, 791-0295, Japan
| | - Shingo Takatori
- Department of Clinical Pharmacy, College of Pharmaceutical Sciences, Matsuyama University, 4-2 Bunkyo-cho, Matsuyama, Ehime, 790-8578, Japan
| | - Koichiro Suemori
- Department of Infection Control, Ehime University Hospital, 454 Shitsukawa, Toon, Ehime, 791-0295, Japan
| | - Mamoru Tanaka
- Division of Pharmacy, Ehime University Hospital, 454 Shitsukawa, Toon, Ehime, 791-0295, Japan
| | - Akihiro Tanaka
- Division of Pharmacy, Ehime University Hospital, 454 Shitsukawa, Toon, Ehime, 791-0295, Japan
| | - Keiko Tanaka
- Department of Epidemiology and Preventive Medicine, Ehime University Graduate School of Medicine, 454 Shitsukawa, Toon, Ehime, 791-0295, Japan.,Research Promotion Unit, Translation Research Center, Ehime University Hospital, 454 Shitsukawa, Toon, Ehime, 791-0295, Japan
| | - Hisamichi Tauchi
- Department of Infection Control, Ehime University Hospital, 454 Shitsukawa, Toon, Ehime, 791-0295, Japan
| | - Jun Maki
- Department of Infectious Disease, College of Pharmaceutical Sciences, Matsuyama University, 4-2 Bunkyo-cho, Matsuyama, Ehime, 790-8578, Japan
| | - Hiroaki Araki
- School of Pharmacy, Shujitsu University, 1-6-1 Nishigawara, Naka-ku, Okayama, Okayama, 703-8516, Japan
| | - Takumi Yamaguchi
- Department of Clinical Pharmacy, College of Pharmaceutical Sciences, Matsuyama University, 4-2 Bunkyo-cho, Matsuyama, Ehime, 790-8578, Japan
| |
Collapse
|
12
|
El-Zamkan MA, Mubarak AG, Ali AO. Prevalence and phylogenetic relationship among methicillin- and vancomycin-resistant Staphylococci isolated from hospital's dairy food, food handlers, and patients. J Adv Vet Anim Res 2019; 6:463-473. [PMID: 31819873 PMCID: PMC6882726 DOI: 10.5455/javar.2019.f369] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2019] [Revised: 07/30/2019] [Accepted: 08/01/2019] [Indexed: 01/21/2023] Open
Abstract
Objective: The aim of the present work was to investigate the mutual role that may be played by the served dairy food and food handlers in the transmission of methicillin- and vancomycin-resistant Staphylococcus aureus and coagulase-negative Staphylococci to patients who were hospitalized in Qena City, Egypt. Materials and Methods: A total of 210 samples including 90 dairy food samples which offered to the patients in the hospital, 60 nasal and hand swabs from food handlers working in the hospital, and 60 nasal and diarrheal swabs from patients suffering from diarrhea were investigated for the presence of coagulase-positive S. aureus and coagulase-negative Staphylococci, then isolates were screened for methicillin and vancomycin resistance phenotypically and genotypically. 16s rRNA gene sequencing was employed to construct the neighbor-joining tree. Results: Unlike food samples, both coagulase-positive S. aureus and coagulase-negative Staphylococci occurred in human samples. Methicillin- and vancomycin-resistant coagulase-negative Staphylococci could be detected in 41.7% & 20.8%, 68% & 31.9%, and 81.3% & 55.2% of isolates obtained from dairy food, food handlers, and patients’ samples, respectively. Whereas 81% & 64.3%, and 75.4% & 38.6% of coagulase-positive S. aureus obtained from food handlers and patients’ samples exhibited resistance to methicillin and vancomycin, respectively. Phenotypic resistance was confirmed molecularly through detection of mecA and vanA genes. Conclusion: A significant role can be played by food and food handlers in the transmission of methicillin- and vancomycin-resistant Staphylococci to patients, which has been proved in this study through the close phylogenetic relation between S. epidermidis isolated from food, food handlers, and patients’ diarrheal samples.
Collapse
Affiliation(s)
- Mona Ahmed El-Zamkan
- Department of Food Hygiene and Control, Faculty of Veterinary Medicine, South Valley University, Qena 83523, Egypt
| | - Asmaa Gaber Mubarak
- Department of Zoonoses, Faculty of Veterinary Medicine, South Valley University, Qena 83523, Egypt
| | - Alsagher Omran Ali
- Division of Infectious Diseases, Animal Medicine Department, Faculty of Veterinary Medicine, South Valley University, Qena 83523, Egypt
| |
Collapse
|
13
|
O'Connor CT, O'Rourke S, Buckley A, Murphy R, Crean P, Foley B, Maree A, Ryan R, Tolan M, Young V, O'Connell B, Daly C. Infective endocarditis: a retrospective cohort study. QJM 2019; 112:663-667. [PMID: 31147713 DOI: 10.1093/qjmed/hcz134] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/12/2019] [Revised: 05/21/2019] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Infective endocarditis (IE) is a potentially life-threatening infection of the heart's endocardial surface. Despite advances in the diagnosis and management of IE, morbidity and mortality remain high. AIM To characterize the demographics, bacteriology and outcomes of IE cases presenting to an Irish tertiary referral centre. DESIGN Retrospective cohort study. METHODS Patients were identified using Hospital Inpatient Enquiry and Clinical Microbiology inpatient consult data, from January 2005 to January 2014. Patients were diagnosed with IE using Modified Duke Criteria. Standard Bayesian statistics were employed for analysis and cases were compared to contemporary international registries. RESULTS Two hundred and two patients were diagnosed with IE during this period. Mean age 54 years. Of these, 136 (67%) were native valve endocarditis (NVE), 50 (25%) were prosthetic valve endocarditis (PVE) and 22 (11%) were cardiovascular implantable electronic device-associated endocarditis. Culprit organism was identified in 176 (87.1%) cases and Staphylococcal species were the most common (57.5%). Fifty-nine per cent of NVE required surgery compared to 66% of PVE. Mean mortality rate was 17.3%, with NVE being the lowest (12.5%) and PVE the highest (32%). Increasing age was also associated with increased mortality. Fifty-three (26.2%) patients had embolic complications. CONCLUSIONS This Irish cohort exhibited first-world demographic patterns comparable to those published in contemporary international literature. PVE required surgery more often and was associated with higher rates of mortality than NVE. Embolic complications were relatively common and represent important sequelae, especially in the intravenous drug user population. It is also pertinent to aggressively treat older cohorts as they were associated with increased mortality.
Collapse
Affiliation(s)
- C T O'Connor
- Department of Cardiology, St. James's Hospital, James's Street, Dublin D08 FD2W
| | - S O'Rourke
- Department of Microbiology, St. James's Hospital, James's Street, Dublin D08 K0Y5
| | - A Buckley
- Department of Cardiology, St. James's Hospital, James's Street, Dublin D08 FD2W
| | - R Murphy
- Department of Cardiology, St. James's Hospital, James's Street, Dublin D08 FD2W
| | - P Crean
- Department of Cardiology, St. James's Hospital, James's Street, Dublin D08 FD2W
| | - B Foley
- Department of Cardiology, St. James's Hospital, James's Street, Dublin D08 FD2W
| | - A Maree
- Department of Cardiology, St. James's Hospital, James's Street, Dublin D08 FD2W
| | - R Ryan
- Department of Cardiothoracic Surgery, St. James's Hospital, James's Street, Dublin D08 FD2W, Ireland
| | - M Tolan
- Department of Cardiothoracic Surgery, St. James's Hospital, James's Street, Dublin D08 FD2W, Ireland
| | - V Young
- Department of Cardiothoracic Surgery, St. James's Hospital, James's Street, Dublin D08 FD2W, Ireland
| | - B O'Connell
- Department of Microbiology, St. James's Hospital, James's Street, Dublin D08 K0Y5
| | - C Daly
- Department of Cardiology, St. James's Hospital, James's Street, Dublin D08 FD2W
| |
Collapse
|
14
|
Abulfathi AA, Chirehwa M, Rosenkranz B, Decloedt EH. Evaluation of the Effectiveness of Dose Individualization to Achieve Therapeutic Vancomycin Concentrations. J Clin Pharmacol 2018; 58:1134-1139. [DOI: 10.1002/jcph.1254] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2018] [Accepted: 04/08/2018] [Indexed: 11/08/2022]
Affiliation(s)
- Ahmed A. Abulfathi
- Division of Clinical Pharmacology; Department of Medicine; Faculty of Medicine and Health Sciences; University of Stellenbosch; South Africa
| | - Maxwell Chirehwa
- Biostatistics Unit; Centre for Evidence Based Health Care (CEHBC); Faculty of Medicine and Health Sciences; University of Stellenbosch; South Africa
| | - Bernd Rosenkranz
- Division of Clinical Pharmacology; Department of Medicine; Faculty of Medicine and Health Sciences; University of Stellenbosch; South Africa
| | - Eric H. Decloedt
- Division of Clinical Pharmacology; Department of Medicine; Faculty of Medicine and Health Sciences; University of Stellenbosch; South Africa
| |
Collapse
|
15
|
Hentzien M, Strady C, Vernet-Garnier V, Servettaz A, De Champs C, Delmer A, Bani-Sadr F, N'Guyen Y. Prognostic factors associated with 30-day in-hospital mortality in coagulase-negative Staphylococcus bacteraemia: no impact of vancomycin minimum inhibitory concentration. Infect Dis (Lond) 2017; 49:664-673. [PMID: 28490261 DOI: 10.1080/23744235.2017.1323346] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
Abstract
BACKGROUND The impact of a minimum inhibitory concentration (MIC) of vancomycin ≥2 mg/L on mortality and the potential benefit of new antistaphylococcal treatments in coagulase-negative Staphylococcus (CoNS) bacteraemia remain unknown. We assessed the impact of vancomycin MIC on 30-day in-hospital mortality and identified factors independently associated with 30-day in-hospital mortality. METHODS All patients presenting significant CoNS bacteraemia in the university hospital of Reims, between 01 January 2008 and 31 December 2012, were included. Data were retrospectively extracted from the patient records. Vancomycin MIC was assessed using the E-test method, and antimicrobial susceptibility testing was performed in accordance with the recommendations of the Antibiogram Committee of the French Microbiology Society. Cox's Proportional Hazards model was used for multivariate analysis. RESULTS Two hundred and sixty-nine patients (mean age 61.2 ± 15.7 years) were included. Foreign material was present in 92% of patients and 78.4% of isolated methicillin-resistant strains had vancomycin MIC ≥2 mg/l. Thirty-day in-hospital mortality was 16%. There was no association between vancomycin MIC ≥2 mg/l and 30-day in-hospital mortality (adjusted Hazard Ratio (aHR) = .80, 95% confidence interval (95%CI) [.30-2.19], p = .67). Factors independently associated with 30-day in-hospital mortality were age ≥75 vs. ≤60 years (aHR =3.72, 95%CI [1.39-9.97], p = .009), absence of active antibiotic treatment (aHR =5.52, 95%CI [1.13-26.87], p = .03) and acute renal failure (aHR =4.45, 95%CI [2.08-9.56], p < .0001). Removal of an infected device had a protective effect against 30-day in-hospital mortality (aHR = .23, 95%CI [.11-.48], p < .0001). CONCLUSIONS These results suggest that CoNS bacteraemia should be managed by removal of the infected device and antibiotic treatment such as vancomycin.
Collapse
Affiliation(s)
- Maxime Hentzien
- a Department of Internal Medicine, Infectious Diseases, and Clinical Immunology , Reims Teaching Hospitals, Robert Debré Hospital , Reims , France.,b EA 3797, Faculty of Medicine , University of Reims Champagne-Ardenne , Reims , France
| | - Christophe Strady
- c Department of Internal Medicine and Infectious diseases , Groupe Courlancy , Reims , France
| | - Véronique Vernet-Garnier
- d Department of Bacteriology, Virology and Hygiene , Reims Teaching Hospitals, Robert Debré Hospital , Reims , France
| | - Amélie Servettaz
- a Department of Internal Medicine, Infectious Diseases, and Clinical Immunology , Reims Teaching Hospitals, Robert Debré Hospital , Reims , France
| | - Christophe De Champs
- d Department of Bacteriology, Virology and Hygiene , Reims Teaching Hospitals, Robert Debré Hospital , Reims , France.,e EA4687 SFR CAP-Santé [FED 4231] , University of Reims Champagne-Ardenne , Reims , France
| | - Alain Delmer
- f Department of Haematology , Reims Teaching Hospitals, Robert Debré Hospital , Reims , France
| | - Firouzé Bani-Sadr
- a Department of Internal Medicine, Infectious Diseases, and Clinical Immunology , Reims Teaching Hospitals, Robert Debré Hospital , Reims , France
| | - Yohan N'Guyen
- a Department of Internal Medicine, Infectious Diseases, and Clinical Immunology , Reims Teaching Hospitals, Robert Debré Hospital , Reims , France
| |
Collapse
|
16
|
Investigation of Glycopeptide Susceptibility of Coagulase-Negative Staphylococci (CoNS) From a Tertiary Care Hospital in Gorgan, Northern Iran. ARCHIVES OF PEDIATRIC INFECTIOUS DISEASES 2016. [DOI: 10.5812/pedinfect.37264] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
|