1
|
Dawoud AM, Saied SA, Torayah MM, Ramadan AE, Elaskary SA. Antifungal susceptibility and virulence determinants profile of candida species isolated from patients with candidemia. Sci Rep 2024; 14:11597. [PMID: 38773138 PMCID: PMC11109173 DOI: 10.1038/s41598-024-61813-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2024] [Accepted: 05/09/2024] [Indexed: 05/23/2024] Open
Abstract
Candida is the most prevalent fungal bloodstream infection (BSI) with a high mortality rate among hospitalized patients. Another concern facing physicians is rising global incidence of drug-resistant Candida. This study aimed to characterize the prevalence, antifungal susceptibility, biofilm formation, and virulence genes (HWP1, ALS1, SAP2) of different Candida spp. isolated from patients with candidemia. 52 isolates of Candida spp. were identified from blood cultures by chromogenic Candida agar and confirmed by the VITEK 2 system. Isolates were tested for antifungal susceptibility by disk diffusion and VITEK 2 system. Biofilm formation and investigated genes were detected by the Congo red method and conventional PCR, respectively. Candida spp. caused 2.3% of detected BSIs, of which 32.7% were caused by Candida albicans (C. albicans) and 67.3% by non-albicans Candida (NAC), with the predominance of C. tropicalis (25%), followed by C. parapsilosis (17.3%), and C. krusei (13.5%). The susceptibility rates to fluconazole, voriconazole, caspofungin, micafungin, amphotericin B, and flucytosine were 64.7%, 76.5%, 100.0%, 100%, 100.0%, and 100.0% in C. albicans, while 53.6%, 71.4%, 91.4%, 91.4%, 94.3%, and 94.3% in NAC, respectively. Biofilm production, HWP1, ALS1, and SAP2 were detected in 70.6%, 82.4%, 76.5%, and 52.9% of C. albicans and 74.3%, 85.7%, 80.0%, and 48.6% of NAC, respectively. There is remarkable shift to NAC BSIs and high azole resistance. Antifungal stewardship and analysis of risk factors associated with this shift are needed.
Collapse
Affiliation(s)
- Amal M Dawoud
- Department of Medical Microbiology and Immunology, Faculty of Medicine, Menoufia University, Shibīn El-Kom, Egypt
| | - Sara A Saied
- Department of Clinical Pathology, National Liver Institute, Menoufia University, Shibīn El-Kom, Egypt.
| | - Mohammad M Torayah
- Department of Anesthesia and Intensive Care, Critical Care Unit, Faculty of Medicine, Menoufia University, Shibīn El-Kom, Egypt
| | - Amira E Ramadan
- Department of Medical Microbiology and Immunology, Faculty of Medicine, Benha University, Banha, Egypt
| | - Shymaa A Elaskary
- Department of Medical Microbiology and Immunology, Faculty of Medicine, Menoufia University, Shibīn El-Kom, Egypt
| |
Collapse
|
2
|
Amatu A, Trani RM, Voltini M, Tavazzi G, Capra Marzani F, Cavanna C, Cambieri P, Corbella M, Muzzi A, Baldanti F, Mojoli F. Outbreak of Candida parapsilosis fungemia in an intensive care unit during a COVID surge: an epidemic within a pandemic. Eur J Clin Microbiol Infect Dis 2023; 42:1347-1353. [PMID: 37776369 DOI: 10.1007/s10096-023-04670-1] [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: 05/27/2023] [Accepted: 09/22/2023] [Indexed: 10/02/2023]
Abstract
We sought to investigate epidemiology, risk factors, clinical features, and outcome of the C. parapsilosis blood stream infection (BSI) outbreaks observed during the first surges of COVID-19 pandemic in our population. Retrospective, monocentric observational study in the 24 bed intensive care unit (ICU) of a tertiary care medical center in northern Italy, from 2019 to 2021 first 5 months. 2030 patients were enrolled, of whom 239 were COVID-19 positive. The total incidence of Candida-BSI was 41.9 per 1000 admissions, with two outbreaks during 2020 spring and winter's COVID surges. The total numbers of C. parapsilosis BSI cases are 94, of which 21 during the first outbreak and 20 during the second. In our population, COVID-19 was strongly associated with C. parapsilosis BSI (OR 4.71, p < 0.001), as well as continuous renal replacement therapy (CRRT) (OR 3.44, p = 0.001), prolonged antibiotic therapy (OR 3.19, p = 0.004), and delayed infusion sets replacements (OR 2.76, p = 0.015). No statistically significant association was found between Candida-BSI episodes and mortality, when adjusted for other known outcome risk factors. COVID surges undermined the infectious control measures in our ICU, leading to two outbreak of C. parapsilosis BSI. A stricter, thorough management of intravascular devices and infusion set is crucial in prevention of catheter related BSI, and awareness must be kept high, especially in emergencies circumstances, such as the ongoing COVID-19 pandemic.
Collapse
Affiliation(s)
- Alessandro Amatu
- Anesthesia and Intensive Care Department, IRCCS Policlinico San Matteo, Pavia, Italy.
| | - Ruben M Trani
- Department of Clinical Surgical Diagnostic and Pediatric Sciences, University of Pavia, Pavia, Italy
| | - Marta Voltini
- Department of Clinical Surgical Diagnostic and Pediatric Sciences, University of Pavia, Pavia, Italy
| | - Guido Tavazzi
- Anesthesia and Intensive Care Department, IRCCS Policlinico San Matteo, Pavia, Italy
- Department of Clinical Surgical Diagnostic and Pediatric Sciences, University of Pavia, Pavia, Italy
| | | | - Caterina Cavanna
- Microbiology and Virology Department, IRCCS Policlinico San Matteo, Pavia, Italy
| | - Patrizia Cambieri
- Microbiology and Virology Department, IRCCS Policlinico San Matteo, Pavia, Italy
| | - Marta Corbella
- Microbiology and Virology Department, IRCCS Policlinico San Matteo, Pavia, Italy
| | - Alba Muzzi
- IRCCS Policlinico San Matteo, Pavia, Italy
| | - Fausto Baldanti
- Department of Clinical Surgical Diagnostic and Pediatric Sciences, University of Pavia, Pavia, Italy
- Microbiology and Virology Department, IRCCS Policlinico San Matteo, Pavia, Italy
| | - Francesco Mojoli
- Anesthesia and Intensive Care Department, IRCCS Policlinico San Matteo, Pavia, Italy
- Department of Clinical Surgical Diagnostic and Pediatric Sciences, University of Pavia, Pavia, Italy
| |
Collapse
|
3
|
Song Y, Kim MS, Chung J, Na HS. Simultaneous Analysis of Bacterial and Fungal Communities in Oral Samples from Intubated Patients in Intensive Care Unit. Diagnostics (Basel) 2023; 13:diagnostics13101784. [PMID: 37238268 DOI: 10.3390/diagnostics13101784] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Revised: 04/28/2023] [Accepted: 05/16/2023] [Indexed: 05/28/2023] Open
Abstract
Intubated patients in intensive care units (ICUs) too frequently contract ventilator-associated pneumonia or Candida infections. Oropharyngeal microbes are believed to play an important etiologic role. This study was undertaken to determine whether next-generation sequencing (NGS) can be used to simultaneously analyze bacterial and fungal communities. Buccal samples were collected from intubated ICU patients. Primers targeting the V1-V2 region of bacterial 16S rRNA and the internal transcribed spacer 2 (ITS2) region of fungal 18S rRNA were used. V1-V2, ITS2, or mixed V1-V2/ITS2 primers were used to prepare an NGS library. Bacterial and fungal relative abundances were comparable for V1-V2, ITS2, or mixed V1-V2/ITS2 primers, respectively. A standard microbial community was used to adjust the relative abundances to theoretical abundance, and NGS and RT-PCR-adjusted relative abundances showed a high correlation. Using mixed V1-V2/ITS2 primers, bacterial and fungal abundances were simultaneously determined. The constructed microbiome network revealed novel interkingdom and intrakingdom interactions, and the simultaneous detection of bacterial and fungal communities using mixed V1-V2/ITS2 primers enabled analysis across two kingdoms. This study provides a novel approach to simultaneously determining bacterial and fungal communities using mixed V1-V2/ITS2 primers.
Collapse
Affiliation(s)
- Yuri Song
- Department of Oral Microbiology, School of Dentistry, Pusan National University, Yangsan 50612, Republic of Korea
- Oral Genomics Research Center, Pusan National University, Yangsan 50612, Republic of Korea
| | - Myoung Soo Kim
- Department of Nursing, College of Natural Science, Pukyong National University, Busan 48513, Republic of Korea
| | - Jin Chung
- Department of Oral Microbiology, School of Dentistry, Pusan National University, Yangsan 50612, Republic of Korea
- Oral Genomics Research Center, Pusan National University, Yangsan 50612, Republic of Korea
- Dental Research Institute, BK21 PLUS Project, School of Dentistry, Pusan National University, Yangsan 50612, Republic of Korea
| | - Hee Sam Na
- Department of Oral Microbiology, School of Dentistry, Pusan National University, Yangsan 50612, Republic of Korea
- Oral Genomics Research Center, Pusan National University, Yangsan 50612, Republic of Korea
- Dental Research Institute, BK21 PLUS Project, School of Dentistry, Pusan National University, Yangsan 50612, Republic of Korea
| |
Collapse
|
4
|
Reda NM, Hassan RM, Salem ST, Yousef RHA. Prevalence and species distribution of Candida bloodstream infection in children and adults in two teaching university hospitals in Egypt: first report of Candida kefyr. Infection 2022; 51:389-395. [PMID: 36018493 PMCID: PMC10042939 DOI: 10.1007/s15010-022-01888-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2022] [Accepted: 07/12/2022] [Indexed: 11/28/2022]
Abstract
BACKGROUND Candidemia is a pervasive problem associated with significant morbidity and mortality in health care settings. This study aimed to determine the changing distribution of Candida species and the emergence of uncommon species. METHODS This was a cross-sectional study performed in two Cairo University hospitals between 2019 and 2020. All Candida species isolates recovered from blood cultures of adults and pediatrics patients admitted to the hospitals were included. Candida isolates were identified by chromogenic Candida agar and Vitek2 YST identification card. Candida kefyr was confirmed by chip array. RESULTS Candida species were responsible for 1.6% of bloodstream infections in adults and 10.8% in pediatric patients. C. albicans was the most prevalent species representing 27.8% in adults and 48.3% in pediatrics. Non-albicans species (NAC) represented the most isolated Candida species among adults and pediatrics (72.2% and 51.6%, respectively) with the predominance of C. tropicalis (27.8% and 22.5%, respectively) followed by C. parapsilosis (16.7% and 10.8%, respectively). The uncommon Candida, which is Candida species other than C. albicans, C. parapsilosis, C. tropicalis, C. glabrata, and C. krusei, represents 16.6% and 14% of all candidemia in adults and pediatrics, respectively. Only one of each of C. lusitaniae, C. utilis, and C. kefyr were detected in adults. C. lusitaniae was the most frequently recovered uncommon Candida among pediatrics resulting in 6.4% of candidemia followed by C. famata (4.3%), C. utilis (2.2%), and C. kefyr (1.1%). CONCLUSIONS C. albicans is still the primary species isolated from pediatrics and adults with candidemia despite the considerable shift to the non-albicans species. C. tropicalis and C. parapsilosis are the most prevalent NAC. The increased prevalence of uncommon Candida species is alarming and necessitates a prompt stewardship program.
Collapse
Affiliation(s)
- Nashwa Mohamed Reda
- Clinical and Chemical Pathology Department, Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Reem Mostafa Hassan
- Clinical and Chemical Pathology Department, Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Sherifa Tarek Salem
- Clinical and Chemical Pathology Department, Faculty of Medicine, Cairo University, Cairo, Egypt.
| | - Reham Hamed A Yousef
- Clinical and Chemical Pathology Department, Faculty of Medicine, Cairo University, Cairo, Egypt
| |
Collapse
|
5
|
Hamim H, Sangeda RZ, Bundala M, Mkumbwa S, Bitegeko A, Sillo HB, Fimbo AM, Chambuso M, Mbugi EV. Utilization Trends of Antiviral and Antifungal Agents for Human Systemic Use in Tanzania From 2010 to 2017 Using the World Health Organization Collaborating Centre for Drug Statistics Methodology. FRONTIERS IN TROPICAL DISEASES 2021. [DOI: 10.3389/fitd.2021.723991] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
IntroductionThe increase in antimicrobial consumption contributes to the emergence of antimicrobial resistance (AMR). Many studies have investigated the patterns of antibacterial consumption and antibacterial resistance. However, there is a paucity of data on the utilization of antivirals and antifungals in low and middle-income countries to serve as a baseline for monitoring and surveillance of AMR. Therefore, this study determined Tanzania’s systemic antifungal and antiviral utilization trends from 2010 to 2017, based on the Tanzania Medicines and Medical Devices Authority (TMDA) medicine importation archives.MethodologyAn analytical, longitudinal retrospective survey covering 2010 to 2017 was conducted. The study utilized the Anatomical Therapeutic and Chemical (ATC) classification and Defined Daily Dose (DDD) developed by the World Health Organization (WHO) Collaborating Centre for Drug Statistics and the WHO Collaboration Centre for International Drug Consumption Monitoring. Human medicine importation data were collected from TMDA headquarters and used to assess the systemic antiviral and antifungal consumption trends. The importation data included the date, generic name, strength, brand name, currency, quantity, ATC classification, supplier country, port of entry and product supplier. The data were cleaned, reorganized and analyzed. Reference was made to the latest revised DDD list to assign antifungals and antivirals to their respective ATC/DDDs and then adjusted to the population estimates from the National Bureau of Statistics of Tanzania.ResultsThere was a high proportion of systemic antivirals and antifungals utilization with 367.1 and 10.8 DDD per 1000 inhabitants per day (DID) respectively over eight years. In regression model, there was a significant increase in both antiviral (p-value = 0.043) and antifungal (p-value = 0.015) agents’ utilization trends in Tanzania in the study period. Fluconazole had the highest proportion of utilization for antifungals, followed by ketoconazole, itraconazole, miconazole and amphotericin B. For systemic antivirals, a high proportion was attributed to antiretrovirals used for HIV infections.ConclusionFindings from this study suggest an increase in the utilization of systemic antiviral and antifungal agents. These findings may be used to further benchmark utilization and AMR studies in Tanzania.
Collapse
|
6
|
Bavaro DF, Balena F, Ronga L, Signorile F, Romanelli F, Stolfa S, Sparapano E, De Carlo C, Mosca A, Monno L, Angarano G, Saracino A. Emerging issue of fluconazole-resistant candidemia in a tertiary care hospital of southern italy: time for antifungal stewardship program. J Mycol Med 2021; 32:101206. [PMID: 34624594 DOI: 10.1016/j.mycmed.2021.101206] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Revised: 08/20/2021] [Accepted: 09/10/2021] [Indexed: 11/19/2022]
Abstract
An increased number of patients is at risk of Candida spp. bloodstream infection (CBSI) in modern medicine. Moreover, the rising of antifungal resistance (AR) was recently reported. All consecutive CBSI occurred in our Hospital (consisting of 1,370 beds) between 2015 and 2018, were reviewed. For each case, Candida species, AR pattern, ward involved and demographic data of patients were recorded. Overall, 304 episodes of CBSI occurred, with a median (q1:first-,q3:third quartile) of 77 (71-82) CBSI/year. Over the years, a significant increase of CBSI due to C. albicans compared to non-albicans strains was recorded in medical wards (from 65% to 71%, p=0.030), while this ratio remained stable in others. An increase of resistant strains to multiple antifungals such as C. guillermondii was noticed in recent years (from 0% to 9.8%, p=0.008). Additionally, from 2015 to 2018 an increase in fluconazole-resistance was recorded in our Hospital (from 7.4% to 17.4%, p=0.025) and a slight increase in voriconazole-resistance (from 0% to 7% in 2018, p=0.161) was observed, while resistance to echinocandin and amphotericin B remained firmly below 2%. This study suggests a rapid spread of antifungal resistance in our Hospital; therefore, an appropriate antifungal stewardship programs is urgently warranted.
Collapse
Affiliation(s)
- Davide Fiore Bavaro
- Clinic of Infectious Diseases, University of Bari, University Hospital Policlinico, Piazza Giulio Cesare n. 11, 70124 Bari Italy.
| | - Flavia Balena
- Clinic of Infectious Diseases, University of Bari, University Hospital Policlinico, Piazza Giulio Cesare n. 11, 70124 Bari Italy
| | - Luigi Ronga
- Microbiology and Virology Unit, University of Bari, University Hospital Policlinico, Piazza Giulio Cesare n. 11, 70124 Bari Italy
| | - Fabio Signorile
- Clinic of Infectious Diseases, University of Bari, University Hospital Policlinico, Piazza Giulio Cesare n. 11, 70124 Bari Italy
| | - Federica Romanelli
- Microbiology and Virology Unit, University of Bari, University Hospital Policlinico, Piazza Giulio Cesare n. 11, 70124 Bari Italy
| | - Stefania Stolfa
- Microbiology and Virology Unit, University of Bari, University Hospital Policlinico, Piazza Giulio Cesare n. 11, 70124 Bari Italy
| | - Eleonora Sparapano
- Microbiology and Virology Unit, University of Bari, University Hospital Policlinico, Piazza Giulio Cesare n. 11, 70124 Bari Italy
| | - Carmela De Carlo
- Microbiology and Virology Unit, University of Bari, University Hospital Policlinico, Piazza Giulio Cesare n. 11, 70124 Bari Italy
| | - Adriana Mosca
- Microbiology and Virology Unit, University of Bari, University Hospital Policlinico, Piazza Giulio Cesare n. 11, 70124 Bari Italy
| | - Laura Monno
- Clinic of Infectious Diseases, University of Bari, University Hospital Policlinico, Piazza Giulio Cesare n. 11, 70124 Bari Italy
| | - Gioacchino Angarano
- Clinic of Infectious Diseases, University of Bari, University Hospital Policlinico, Piazza Giulio Cesare n. 11, 70124 Bari Italy
| | - Annalisa Saracino
- Clinic of Infectious Diseases, University of Bari, University Hospital Policlinico, Piazza Giulio Cesare n. 11, 70124 Bari Italy
| |
Collapse
|
7
|
Sakai D, Matsumiya W, Kusuhara S, Nakamura M. Factors associated with the development of ocular candidiasis and ocular prognosis with echinocandin therapy for candidemia. J Ophthalmic Inflamm Infect 2021; 11:17. [PMID: 34121142 PMCID: PMC8200333 DOI: 10.1186/s12348-021-00248-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Accepted: 05/17/2021] [Indexed: 12/05/2022] Open
Abstract
Purpose To evaluate the factors associated with the development of ocular candidiasis (OC) and ocular prognosis with echinocandin therapy for candidemia. Methods The medical records of 56 consecutive patients with a positive blood culture for Candida species between November 2016 and October 2019 were retrospectively reviewed. Information on patient characteristics, isolated Candida species, treatment details for candidemia, and ocular findings were extracted to identify factors associated with OC development. Results The leading pathogen of candidemia was Candida albicans (C.albicans) (41.1%). Of 56 patients, 18 (32.1%) were diagnosed with chorioretinitis, categorized as either probable (8 patients) or possible OC (10 patients). There was no case of endophthalmitis with vitritis. The incidence of probable OC was not significantly different between the groups treated with echinocandins and other antifungal drugs (15.2% vs. 11.1%, p = 1.00). In all probable OC cases, systemic antifungal therapy was switched from echinocandins to azoles, and no case progressed to endophthalmitis. A multivariate logistic analysis revealed that female sex (adjusted odds ratio [aOR], 8.93; 95% confidence interval [CI], 1.09–72.9) and C. albicans (aOR, 23.6; 95% CI, 1.8–281) were independent factors associated with the development of probable OC. Conclusion One-seventh of patients with candidemia developed probable OC. Given the evidence of female and C. albicans as the factors associated with OC development, careful ophthalmologic management is required with these factors, especially in candidemia. Although echinocandins had no correlation with OC development and did not lead to the deterioration of ocular prognosis, further investigation is required. Supplementary Information The online version contains supplementary material available at 10.1186/s12348-021-00248-0.
Collapse
Affiliation(s)
- Daiki Sakai
- Department of Surgery, Division of Ophthalmology, Kobe University Graduate School of Medicine, 7-5-2 Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan.,Department of Ophthalmology, Kobe City Eye Hospital, Kobe, Japan
| | - Wataru Matsumiya
- Department of Surgery, Division of Ophthalmology, Kobe University Graduate School of Medicine, 7-5-2 Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan.
| | - Sentaro Kusuhara
- Department of Surgery, Division of Ophthalmology, Kobe University Graduate School of Medicine, 7-5-2 Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan
| | - Makoto Nakamura
- Department of Surgery, Division of Ophthalmology, Kobe University Graduate School of Medicine, 7-5-2 Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan
| |
Collapse
|
8
|
Kim EJ, Lee E, Kwak YG, Yoo HM, Choi JY, Kim SR, Shin MJ, Yoo SY, Cho NH, Choi YH. Trends in the Epidemiology of Candidemia in Intensive Care Units From 2006 to 2017: Results From the Korean National Healthcare-Associated Infections Surveillance System. Front Med (Lausanne) 2020; 7:606976. [PMID: 33392229 PMCID: PMC7773785 DOI: 10.3389/fmed.2020.606976] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Accepted: 11/24/2020] [Indexed: 12/30/2022] Open
Abstract
Candidemia is an important healthcare-associated infection (HAI) in intensive care units (ICUs). However, limited research has been conducted on candidemia in the Republic of Korea. We aimed to analyze the secular trends in the incidence and distribution of candidemia in ICUs over 12-years using data from the Korean National Healthcare-Associated Infections Surveillance System (KONIS). KONIS was established in 2006 and has performed prospective surveillance of HAIs including bloodstream infections (BSIs) in ICUs. We evaluated the trends in the distribution of causative pathogens and the incidence of candidemia. From 2006 to 2017, 2,248 candidemia cases occurred in 9,184,264 patient-days (PDs). The pooled mean incidence rates of candidemia significantly decreased from 3.05 cases/10,000 PDs in 2006 to 2.5 cases/10,000 PDs in 2017 (P = 0.001). Nevertheless, the proportion of candidemia gradually increased from 15.2% in 2006 to 16.6% in 2017 (P = 0.001). The most frequent causative pathogen of BSIs from 2006 to 2012 was Staphylococcus aureus; however, Candida spp. emerged as the most frequent causative pathogen since 2013. C. albicans (39.9%) was the most common among Candida spp. causing BSIs, followed by Candida tropicalis (20.2%) and Candida parapsilosis (18.2%). The proportion of candidemia caused by C. glabrata significantly increased from 8.9% in 2006 to 17.9% in 2017 (P < 0.001). There was no significant change in the distribution of Candida spp. by year (P = 0.285). The most common source of BSIs was central lines associated BSI (92.5%). There was a significant increase in the proportion of candidemia by year in hospitals with organ transplant wards (from 18.9% in 2006 to 21.1% in 2017, P = 0.003), hospitals with <500 beds (from 2.7% in 2006 to 13.6% in 2017, P < 0.001), and surgical ICUs (from 16.2% in 2006 to 21.7% in 2017, P = 0.003). The proportion of candidemia has increased in Korea, especially in hospitals with <500 beds and surgical ICUs. Thus, appropriate infection control programs are needed.
Collapse
Affiliation(s)
- Eun Jin Kim
- Department of Infectious Diseases, Ajou University School of Medicine, Suwon, South Korea
| | - Eunyoung Lee
- Department of Biomedical Informatics, Ajou University School of Medicine, Suwon, South Korea.,Office of Biostatistics, Medical Research Collaborating Center, Ajou Research Institute for Innovative Medicine, Ajou University Medical Center, Suwon, South Korea
| | - Yee Gyung Kwak
- Department of Internal Medicine, Inje University Ilsan Paik Hospital, Goyang, South Korea
| | - Hyeon Mi Yoo
- Infection Control Office, Inje University Sanggye Paik Hospital, Seoul, South Korea
| | - Ji Youn Choi
- Infection Control Unit, Chung-Ang University Healthcare System, Seoul, South Korea
| | - Sung Ran Kim
- Infection Control Office, Korea University Guro Hospital, Seoul, South Korea
| | - Myoung Jin Shin
- Infection Control Office, Seoul National University Bundang Hospital, Seongnam, South Korea
| | - So-Yeon Yoo
- Adjunct Assistant Professor, College of Nursing, The Catholic University of Korea, Seoul, South Korea
| | - Nan-Hyoung Cho
- Department of Infection Control, Gangnam Severance Hospital, Yonsei University, Seoul, South Korea
| | - Young Hwa Choi
- Department of Infectious Diseases, Ajou University School of Medicine, Suwon, South Korea
| |
Collapse
|
9
|
Fraser M, Borman AM, Thorn R, Lawrance LM. Resistance to echinocandin antifungal agents in the United Kingdom in clinical isolates of Candida glabrata: Fifteen years of interpretation and assessment. Med Mycol 2020; 58:219-226. [PMID: 31111912 DOI: 10.1093/mmy/myz053] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2019] [Revised: 04/02/2019] [Accepted: 04/24/2019] [Indexed: 01/08/2023] Open
Abstract
Candidemia is widely reported as the fourth most common form of bloodstream infection worldwide. Reports of breakthrough cases of candidemia are increasing, especially in the context of a move away from azole antifungals as prophylactic or first line treatment toward the use of echinocandin agents. The global evaluation of echinocandin antifungal susceptibility since 2003 has included switches in testing methodologies and the move to a sentinel echinocandin approach for classification reporting. This study compiles previously unpublished data from echinocandin susceptibility testing of UK clinical isolates of C. glabrata received at the Public Health England Mycology Reference Laboratory from 2003 to 2016 and reevaluates the prevalence of resistance in light of currently accepted testing protocols. From 2015 onward, FKS gene mutation detection using a novel Pyrosequencing® assay was assessed as a predictor of echinocandin resistance alongside conventional susceptibility testing. Overall, our data show that echinocandin resistance in UK isolates of C. glabrata is a rare phenomenon and prevalence has not appreciably increased in the last 14 years. The pyrosequencing assay was able to successfully detect hot spot mutations in FKS1 and FKS2, although not all isolates that exhibited phenotypic resistance demonstrated detectable hot spot mutations. We propose that a rapid genomic based detection method for FKS mutations, as part of a multifactorial approach to susceptibility testing, could help provide accurate and timely management decisions especially in regions where echinocandin resistance has been reported to be emerging in this important pathogen.
Collapse
Affiliation(s)
- Mark Fraser
- UK National Mycology Reference Laboratory, Public Health England, Bristol, UK.,Centre for Research in Bioscience, University of the West of England, Coldharbour Lane, Bristol, UK
| | - Andrew M Borman
- UK National Mycology Reference Laboratory, Public Health England, Bristol, UK
| | - Robin Thorn
- Centre for Research in Bioscience, University of the West of England, Coldharbour Lane, Bristol, UK
| | - Lynne M Lawrance
- Centre for Research in Bioscience, University of the West of England, Coldharbour Lane, Bristol, UK
| |
Collapse
|
10
|
Suh JW, Kim SB, Yoon YK, Sohn JW, Kim MJ, Kim JH. Anidulafungin Versus Micafungin in the Treatment of Candidemia in Adult Patients. Mycopathologia 2020; 185:653-664. [PMID: 32705415 PMCID: PMC7377311 DOI: 10.1007/s11046-020-00471-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2020] [Accepted: 06/29/2020] [Indexed: 11/24/2022]
Abstract
Background Echinocandins are recommended for the treatment of invasive candidiasis and candidemia. However, there are few studies comparing anidulafungin and micafungin in terms of efficacy and safety. The objective of this study was to evaluate the clinical efficacy and safety between anidulafungin and micafungin treatment for adult patients with candidemia. Methods This retrospective cohort study performed on adult candidemia patients diagnosed from January 2006 through December 2018 at a tertiary medical center. The study subjects included adult patients ≥ 19 years with candidemia who were only treated with anidulafungin or micafungin for ≥ 3 days. Clinical characteristics were collected and analyzed. Hepatotoxicity was assessed according to the Common Terminology Criteria for Adverse Events Version 5.0. Results A total of 98 patients with candidemia were treated with anidulafungin (n = 52, 53.1%) or micafungin (n = 46, 46.9%). There were no significant differences in age, sex, source of candidemia, and comorbidities between the anidulafungin and micafungin groups. Although there were more patients with abnormal baseline liver function test (LFT) in the anidulafungin group, the rate of clinical response (51.9% vs. 46.7%), mycological response (76.9% vs. 67.4%), and mortality (30-day mortality 26.9% vs. 21.7% and 90-day mortality 78.8% vs. 73.9%) was similar between the anidulafungin and micafungin groups. Also, there was no significant difference in terms of hepatotoxicity, even among the patients with abnormal baseline LFT between the two groups. Conclusions Our results suggest that clinical efficacy and safety may be similar between anidulafungin and micafungin treatment for adult patients with candidemia. Electronic supplementary material The online version of this article (10.1007/s11046-020-00471-8) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
- Jin Woong Suh
- Division of Infectious Diseases, Department of Internal Medicine, Korea University College of Medicine, 73 Inchon-ro, Seongbuk-gu, Seoul, 02841, Republic of Korea
| | - Sun Bean Kim
- Division of Infectious Diseases, Department of Internal Medicine, Korea University College of Medicine, 73 Inchon-ro, Seongbuk-gu, Seoul, 02841, Republic of Korea
| | - Young Kyung Yoon
- Division of Infectious Diseases, Department of Internal Medicine, Korea University College of Medicine, 73 Inchon-ro, Seongbuk-gu, Seoul, 02841, Republic of Korea
| | - Jang Wook Sohn
- Division of Infectious Diseases, Department of Internal Medicine, Korea University College of Medicine, 73 Inchon-ro, Seongbuk-gu, Seoul, 02841, Republic of Korea
| | - Min Ja Kim
- Division of Infectious Diseases, Department of Internal Medicine, Korea University College of Medicine, 73 Inchon-ro, Seongbuk-gu, Seoul, 02841, Republic of Korea
| | - Jong Hun Kim
- Division of Infectious Diseases, Department of Internal Medicine, Korea University College of Medicine, 73 Inchon-ro, Seongbuk-gu, Seoul, 02841, Republic of Korea.
| |
Collapse
|
11
|
Brunetti G, Navazio AS, Giuliani A, Giordano A, Proli EM, Antonelli G, Raponi G. Candida blood stream infections observed between 2011 and 2016 in a large Italian University Hospital: A time-based retrospective analysis on epidemiology, biofilm production, antifungal agents consumption and drug-susceptibility. PLoS One 2019; 14:e0224678. [PMID: 31697722 PMCID: PMC6837454 DOI: 10.1371/journal.pone.0224678] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2019] [Accepted: 10/19/2019] [Indexed: 02/05/2023] Open
Abstract
Candida bloodstream infection (BSI) represents a growing infective problem frequently associated to biofilm production due to the utilization of intravascular devices. Candida species distribution (n = 612 strains), their biofilm production and hospital antifungal drug consumption were evaluated in different wards of a tertiary care academic hospital in Italy during the years 2011–2016. In the considered time window, an increasing number of Candida BSI (p = 0.005) and of biofilm producing strains were observed (p<0.0001). Although C. albicans was the species more frequently isolated in BSI with a major biofilm production, an increased involvement of non-albicans species was reported, particularly of C. parapsilosis that displayed a high frequency in catheter infections, and lower biofilm production compared to C. albicans. Although trends of biofilm production were substantially stable in time, a decreasing biofilm production by C. parapsilosis in the Intensive Care Unit (ICU) was observed (p = 0.0041). Principal component analysis displayed a change in antifungal drugs consumption driven by two mutually independent temporal trends, i.e. voriconazole use in the general medicine wards initially, and fluconazole use mainly in the ICU; these factors explain 68.9% and 25.7% of total variance respectively. Moreover, a significant trend (p = 0.003) in fluconazole use during the whole time period considered emerged, particularly in the ICU (p = 0.017), but also in the general medicine wards (p = 0.03). These trends paralleled with significant increase MIC90 of fluconazole (p = 0.05), particularly for C. parapsilosis in the ICU (p = 0.04), with a general and significant decreased trend of the MIC90 values of caspofungin (p = 0.04), and with significant increased MIC50 values for amphotericin B (p = 0.01) over the study period. In conclusion, drug utilization in our hospital turned out to be a putative influencing factor on the ecology of the species, on the increase in time of the biofilm producing strains and on the Candida antifungal susceptibility profile, thus influencing clinical management.
Collapse
Affiliation(s)
- Grazia Brunetti
- Department of Public Health and Infectious Diseases, Sapienza University of Rome, Rome, Italy
| | - Anna Sara Navazio
- Department of Molecular Medicine, Laboratory of Microbiology and Pasteur Institute-Cenci Bolognetti Foundation, Sapienza University of Rome, Rome, Italy
| | - Alessandro Giuliani
- Department of Environment and Health, Istituto Superiore di Sanità, Rome, Italy
| | - Alessandra Giordano
- Department of Public Health and Infectious Diseases, Sapienza University of Rome, Rome, Italy
- Microbiology and Virology Unit, Sapienza University Hospital Policlinico Umberto I, Rome, Italy
| | - Enrica Maria Proli
- Hospital Pharmacy, University Hospital Policlinico Umberto I, Rome, Italy
| | - Guido Antonelli
- Department of Molecular Medicine, Laboratory of Microbiology and Pasteur Institute-Cenci Bolognetti Foundation, Sapienza University of Rome, Rome, Italy
- Microbiology and Virology Unit, Sapienza University Hospital Policlinico Umberto I, Rome, Italy
| | - Giammarco Raponi
- Department of Public Health and Infectious Diseases, Sapienza University of Rome, Rome, Italy
- Microbiology and Virology Unit, Sapienza University Hospital Policlinico Umberto I, Rome, Italy
- * E-mail:
| |
Collapse
|
12
|
Zeng ZR, Tian G, Ding YH, Yang K, Liu JB, Deng J. Surveillance study of the prevalence, species distribution, antifungal susceptibility, risk factors and mortality of invasive candidiasis in a tertiary teaching hospital in Southwest China. BMC Infect Dis 2019; 19:939. [PMID: 31699043 PMCID: PMC6836498 DOI: 10.1186/s12879-019-4588-9] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2019] [Accepted: 10/22/2019] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Invasive candidiasis (IC) is the most common invasive fungal infection. The epidemiology of IC in hospitalized patients has been widely investigated in many metropolitan cities; however, little information from medium and small cities is known. METHODS A 5-year retrospective study was carried out to analyze the prevalence, species distribution, antifungal susceptibility, risk factors and mortality of inpatients with invasive Candida infection in a regional tertiary teaching hospital in Southwest China. RESULTS A total of 243 inpatients with invasive Candida infection during the five-year study period were identified, with a mean annual incidence of 0.41 cases per 1000 admissions and a 30-day mortality rate of 12.3%. The species distributions of Candida albicans, Candida glabrata, Candida tropicalis, Candida krusei, Candida parapsilosis and other Candida species was 45.3, 30.0, 15.2, 4.9, 2.1 and 2.5%, respectively. The total resistance rates of fluconazole (FCA), itraconazole (ITR) and voriconazole (VRC) were 18.6, 23.1 and 18.5%, respectively. Respiratory dysfunction, pulmonary infection, cardiovascular disease, chronic/acute renal failure, mechanical ventilation, abdominal surgery, intensive care in adults, septic shock and IC due to C. albicans were associated with 30-day mortality (P < 0.05) according to the univariate analyses. Respiratory dysfunction [odds ratio (OR), 9.80; 95% confidence interval (CI), 3.24-29.63; P < 0.001] and IC due to C. albicans (OR, 3.35; 95% CI, 1.13-9.92; P = 0.029) were the independent predictors of 30-day mortality. CONCLUSIONS This report shows that the incidence and mortality rates are lower and that the resistance rates to azoles are higher in medium and small cities than in large cities and that the species distributions and risk factors in medium and small cities are different from those in large cities in China. It is necessary to conduct epidemiological surveillance in medium and small cities to provide reference data for the surveillance of inpatients with IC infections.
Collapse
Affiliation(s)
- Zhang-rui Zeng
- Department of Laboratory Medical, Affiliated Hospital of Southwest Medical University, 25 Taiping street, Luzhou, 646000 People’s Republic of China
| | - Gang Tian
- Department of Laboratory Medical, Affiliated Hospital of Southwest Medical University, 25 Taiping street, Luzhou, 646000 People’s Republic of China
| | - Yin-huan Ding
- Department of Laboratory Medical, Affiliated Hospital of Southwest Medical University, 25 Taiping street, Luzhou, 646000 People’s Republic of China
| | - Kui Yang
- Department of Laboratory Medical, Affiliated Hospital of Southwest Medical University, 25 Taiping street, Luzhou, 646000 People’s Republic of China
| | - Jin-bo Liu
- Department of Laboratory Medical, Affiliated Hospital of Southwest Medical University, 25 Taiping street, Luzhou, 646000 People’s Republic of China
| | - Jian Deng
- Department of Laboratory Medical, Affiliated Hospital of Southwest Medical University, 25 Taiping street, Luzhou, 646000 People’s Republic of China
| |
Collapse
|
13
|
Morbidity and mortality of candidaemia in Europe: an epidemiologic meta-analysis. Clin Microbiol Infect 2019; 25:1200-1212. [DOI: 10.1016/j.cmi.2019.04.024] [Citation(s) in RCA: 101] [Impact Index Per Article: 20.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2019] [Revised: 04/15/2019] [Accepted: 04/18/2019] [Indexed: 01/30/2023]
|
14
|
Önal U, Metin DY, Karaca C, Hilmioğlu Polat S, Ersin S, Işıkgöz Taşbakan M. Retrospective evaluation of candidemic patients among general surgery department in a tertiary care university hospital. Turk J Surg 2019; 35:210-213. [PMID: 32550330 DOI: 10.5578/turkjsurg.4252] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2018] [Accepted: 10/10/2018] [Indexed: 12/16/2022]
Abstract
Objectives Candida species are among the most important causes of hospital acquired blood borne infections, and with high rates of mortality and morbidity, these infections are still a major problem today. History of gastrointestinal surgery, administration of total parenteral nutrition and/or wide spectrum antibiotics and immune suppression following organ transplantations are considered serious risk factors for these infections. This study aimed to evaluate the patients from our general surgery department with diagnosed candidemia; by means of strain, treatment and prognosis. Material and Methods Patients with positive blood cultures for Candida species who were treated in the wards and Ege University Faculty of Medicine general surgery department of surgical intensive care units of our between 2012 and 2017 were retrospectively analyzed by means of strain, treatment and prognosis. Results A total of 50 patients were enrolled in the study. Mean age was 58.96 years and 54% of the patients were female. There were nine patients with organ transplantation (four liver and five kidney transplantations), six with intestinal perforation and three with anastomotic leakage. Isolated strains were Candida albicans (36%; 18/50), Candida tropicalis (14%; 7/50), Candida glabrata (12%; 6/50), Candida parapsilosis (8%; 4/50), Candida kefyr (6%; 3/50), Candida krusei (4%; 2/50), Candida pulcherrima (2%; 1/50), Cryptococcus neoformans (2%, 1/50), Geotrichum capitatum (2%, 1/50), Candida spp. (unidentified, 14%; 7/50) with decreasing frequency. The highest antifungal sensitivity rates (> 90%) were measured for amphotericin B, voriconazole and echinocandins among all isolates. One-month mortality rate was 43.4% (20/46). Documented eradication was achieved among 24 of the 33 patients who had control blood culture samples (72.7%), and mean eradication time was 7.6 days. Echocardiography was performed in 14% (7/50) and ophthalmic examination in 8% (4/50). Conclusion Although C. albicans appears to be the dominant strain in patients with candidemia, frequencies of other strains are increasing. Early diagnosis and treatment of patients with candidemia is of vital importance due to high mortality and morbidity rates.
Collapse
Affiliation(s)
- Uğur Önal
- Department of Infectious Diseases and Clinical Microbiology, Ege University School of Medicine, İzmir, Turkey
| | - Dilek Yeşim Metin
- Department of Medical Microbiology, Ege University School of Medicine, İzmir, Turkey
| | - Can Karaca
- Department of General Surgery, İzmir Economics University School of Medicine, İzmir, Turkey
| | | | - Sinan Ersin
- Department of General Surgery, Ege University School of Medicine, İzmir, Turkey
| | - Meltem Işıkgöz Taşbakan
- Department of Infectious Diseases and Clinical Microbiology, Ege University School of Medicine, İzmir, Turkey
| |
Collapse
|
15
|
Kaplan E, Aktaş D, Önder Ş, Metin B, Döğen A, Oz Y, Ilkit M. Mating genotypes and susceptibility profiles of clinical isolates of Candida glabrata from Turkey. Mycoses 2019; 62:796-802. [PMID: 31134666 DOI: 10.1111/myc.12945] [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: 04/19/2019] [Revised: 05/20/2019] [Accepted: 05/21/2019] [Indexed: 12/01/2022]
Abstract
The sexual cycle of Candida glabrata is not known; however, genomic evidence is indicative of recombination among subpopulations and the genome harbours genes necessary for undergoing mating and meiosis, which may increase fitness. The relationship between specific mating type-like (MTL) loci and antifungal susceptibility is not well understood in C. glabrata. We investigated different combinations of clinical C. glabrata isolate mating types and their antifungal susceptibility profiles. Allele profiles of the mating genes of 103 clinical C. glabrata isolates were identified, and their antifungal susceptibility to azoles, echinocandins and amphotericin B were compared. The majority (88.3%) of screened isolates harboured the a allele in the locus. The MTL1, MTL2 and MTL3 loci harboured a (88.3%), a (95.1%), and α (71.8%) alleles, respectively. The C. glabrata isolates were susceptible to echinocandins but displayed high minimal inhibitory concentrations (MICs) for azoles. The MIC ranges and MIC90 values of all isolates were 1.0 to ≥64 and 8.0 μg mL-1 for fluconazole, 0.06 to ≥16.0 and 0.5 μg mL-1 for voriconazole, 0.06 to ≥16.0 and 1.0 μg mL-1 for posaconazole, ≤0.015 to 0.06, and 0.03 μg mL-1 for caspofungin, ≤0.015 to 0.06 and 0.015 μg mL-1 for anidulafungin and 0.5-2 and 2.0 μg mL-1 for amphotericin B, respectively. The mating gene alleles of the clinical C. glabrata isolates were not associated with differences in the MICs of the tested antifungals, except for the MTL3 α-allele and echinocandins. The mating genotypes of the clinical C. glabrata isolates had no recognisable common effect on antifungal susceptibility.
Collapse
Affiliation(s)
- Engin Kaplan
- Advanced Technology Education, Research, and Application Center, Mersin University, Mersin, Turkey.,Department of Pharmaceutical Microbiology, Faculty of Pharmacy, University of Zonguldak Bülent Ecevit, Zonguldak, Turkey
| | - Deniz Aktaş
- Department of Pharmaceutical Microbiology, Faculty of Pharmacy, University of Mersin, Mersin, Turkey
| | - Şükran Önder
- Department of Microbiology, Division of Mycology, Faculty of Medicine, University of Eskisehir Osmangazi, Eskisehir, Turkey
| | - Banu Metin
- Department of Food Engineering, Faculty of Engineering and Natural Sciences, Istanbul Sabahattin Zaim University, Istanbul, Turkey
| | - Aylin Döğen
- Department of Pharmaceutical Microbiology, Faculty of Pharmacy, University of Mersin, Mersin, Turkey
| | - Yasemin Oz
- Department of Microbiology, Division of Mycology, Faculty of Medicine, University of Eskisehir Osmangazi, Eskisehir, Turkey
| | - Macit Ilkit
- Department of Microbiology, Division of Mycology, Faculty of Medicine, University of Çukurova, Adana, Turkey
| |
Collapse
|
16
|
Nemer S, Imtiaz T, Varikkara M, Collier A, Bal AM. Management of candidaemia with reference to the European confederation of medical mycology quality indicators. Infect Dis (Lond) 2019; 51:527-533. [DOI: 10.1080/23744235.2019.1606436] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Affiliation(s)
- Sophia Nemer
- Department of Renal Medicine, University Hospital Crosshouse, Kilmarnock, UK
| | - Toufeeq Imtiaz
- Department of Renal Medicine, University Hospital Crosshouse, Kilmarnock, UK
| | - Mohan Varikkara
- Department of Ophthalmology, University Hospital Ayr, Kilmarnock, UK
| | - Andrew Collier
- Department of Medicine, University Hospital Ayr, Kilmarnock, UK
| | - Abhijit M. Bal
- Department of Microbiology, University Hospital Crosshouse, Kilmarnock, UK
| |
Collapse
|
17
|
|
18
|
Papadimitriou-Olivgeris M, Spiliopoulou A, Kolonitsiou F, Bartzavali C, Lambropoulou A, Xaplanteri P, Anastassiou ED, Marangos M, Spiliopoulou I, Christofidou M. Increasing incidence of candidaemia and shifting epidemiology in favor of Candida non-albicans in a 9-year period (2009–2017) in a university Greek hospital. Infection 2018; 47:209-216. [DOI: 10.1007/s15010-018-1217-2] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2018] [Accepted: 09/05/2018] [Indexed: 11/28/2022]
|