Archive for year: 2024
Interview with Croatian AMR expert Arjana Tambic Andrasevic
Interview with Croatian AMR expert Arjana Tambic Andrasevic
In this insightful interview, we engage with Dr. Arjana Tambic, a leading expert in antimicrobial resistance from Zagreb, Croatia. Dr. Tambic brings extensive experience from her roles in national and international AMR surveillance and education as she shares her perspectives on the critical challenges posed by AMR, the importance of robust surveillance systems, and the essential role of rapid diagnostics in improving antibiotic prescribing practices.
Can you introduce yourself and describe your role in the AMR field?
I am a medical doctor, professor in clinical microbiology, and head of the Department of Clinical Microbiology at the University Hospital for Infectious Diseases in Zagreb, Croatia. I chair the National AMR Reference Center and have been involved in developing and managing the national AMR surveillance network since the 90s, the network known as the Croatian Committee for Antibiotic Resistance Surveillance. I also chair the Interdisciplinary Section for Antibiotic Resistance Control that coordinates intersectoral efforts at the Ministry of Health, the Ministry of Agriculture, and the Ministry of Science and Education. Internationally, I’m active in ESCMID, particularly in its subcommittee for education. I am also involved in coordinating groups of EARS-Net and CAESAR, two complementary surveillance networks for antimicrobial resistance, using the same surveillance methodology. The former is part of the ECDC and covers EU countries, the latter is organized by ESCMID, WHO Europe and RIVM and covers non-EU European countries. And lastly, I contribute to education initiatives through ESCMID and CAESAR, focusing on antimicrobial resistance and diagnostic stewardship.
Why should people be concerned about AMR?
An important reason for concern is the fact that bacteria adapt quickly, exchanging generations in just 20 minutes. The widespread use of antibiotics has led to resistant mutants prevailing. People should be aware that without effective antibiotics our life expectancy would decrease significantly. Not only have antibiotics allowed us to treat severe community acquired infections like meningitis and sepsis, but also to perform invasive medical procedures safely. If we lose this ability, many medical advancements, including transplant programs and various invasive diagnostics, will be jeopardized.
What is the expected impact of the work you’re doing?
I am heavily involved in surveillance and teaching as I firmly believe surveillance is the first step in understanding and controlling AMR. It provides measurable data to guide interventions effectively. That said, poor quality data can be misleading, so ensuring the reliability of surveillance data is essential and a point of permanent attention. This involves external quality control and proper sample collection. Accurate surveillance data helps in assessing the impact of interventions and guiding future national and international investments.
What is the situation in Croatia at the moment in regards to AMR?
In Croatia, our antibiotic consumption is around the European average. However, infection control and prevention are equally important. We are working towards improving hospital infrastructure, like increasing the percentage of single rooms, which helps healthcare workers to comply with hygiene protocols. Staff shortages and overcrowding in acute care hospitals pose serious challenges in our country. At the level of the intersectional ministerial committee, we are also advocating for mandatory antimicrobial stewardship teams in hospitals to ensure better management and compliance.
How did the COVID-19 pandemic impact the research on AMR?
During the second wave of COVID-19 in 2020, our real-time feedback on alert organisms was briefly interrupted due to overwhelming workloads. However, our overall surveillance activities continued. The pandemic caused an increase in nosocomial infections (healthcare-associated), especially due to carbapenem-resistant Acinetobacter baumannii. In addition to the overwhelming number of critically ill COVID-19 patients leading to overcrowding and staff shortage, overuse of personal protective equipment led to lapses in standard precautions. Despite these challenges, we maintained our surveillance efforts and adapted our practices to ensure ongoing AMR monitoring.
One of the aims of VALUE-Dx is to demonstrate the value of diagnostics to change the antibiotics prescribing behaviour. Can you comment on this?
Rapid diagnostics are essential for improving antibiotic prescribing behaviour, offering numerous opportunities for timely and accurate testing. However, there must be a balance, as over-reliance on multiplex platforms can be costly and requires careful interpretation. Crucially, the organization of laboratory services is vital: acute care hospitals dealing with life-threatening infections need 24/7 access to microbiology labs to maximize the benefits of rapid diagnostics. Effective lab services can significantly reduce turnaround times, which is critical in urgent cases. Furthermore, rapid test results should also guide de-escalation of therapy, ensuring the use of the narrowest yet effective antibiotics, and help in determining when antibiotics are unnecessary. Excluding the need for antibiotics through rapid testing is indeed important, but clinical judgment should always precede test results to ensure optimal patient care.
- About Arjana Tambic Andrasevic
Dr Arjana Tambic Andrasevic is a consultant microbiologist since 1993, and is currently the head of the Department of Clinical Microbiology at the University Hospital for Infectious Diseases in Zagreb. She gained part of her training working as an honorary registrar and lecturer at Guy’s and St. Thomas’s Hospitals, London. Dr Tambic Andrasevic has been involved in a number of national and international committees. Her field of interest is antibiotic resistance surveillance and infection prevention and control. She is currently a member of the ESCMID Education Subcommittee, a member of the EARS-Net Coordination Group, a WHO consultant for antibiotic resistance surveillance and a member of the Central Asian and Eastern European Surveillance of Antimicrobial Resistance (CAESAR) Coordination Group.
More interviews
AMR expert interview with Dr. Füsun Can
AMR expert interview with Dr. Füsun Can
Meet Dr. Füsun Can, a medical doctor and professor in Istanbul. She leads a multidisciplinary team focused on antibiotic resistance research. With expertise in virology and a commitment to collaborative efforts, Dr. Can’s work extends beyond the laboratory, aiming to address emerging infectious disease challenges across Turkey.
Can you introduce yourself and describe your role in the AMR field?
I’m a medical doctor and a professor in medical microbiology. Currently, I am the laboratory director of the Koc University Research Center for Infectious Diseases in Istanbul. One of our laboratory units is focused on research in antibiotic resistance and we collaborate with different centres throughout Turkey, conducting multicenter studies. One of our research topics, for example, is biofilm related infections and we work together with other scientists from our university such as engineers and chemists to find new strategies to combat these infections. We also explore the efficiency of diagnostic tests, especially molecular and multiplex PCR tests.
What are some challenges that you are currently facing?
Antibiotic resistance and the treatment of resistant infections is not an isolated problem. We should look into the virulence of bacteria and the immune response of bacterial virulence factors as well. By focusing on these aspects together, we can uncover new strategies to combat resistant bacterial infections. In my laboratory, we’re delving into studies on pathogenesis and virulence factors.
Why should people be concerned about AMR?
Antibiotic resistance is concerning because of several reasons. It poses a significant global health threat, leading to issues such as bacterial infections with increased severity and fatality rates. In Turkey, being a critical geographical bridge between Asia and Europe, there’s a unique challenge with the spread of resistance genes from both regions.
On top of that, inappropriate antibiotic use and limited access to rapid diagnostics contribute to the growing problem. Altogether, this causes higher fatality rates and puts economic strain on the public and the government. High carbapenem-resistant rates, for example, complicate possible treatments which in a lot of cases ends up in expensive combination therapies and delayed results. Another example is the resistance to common antibiotics like Ciprofloxacin for urinary tract infections, so there is a growing concern for treatment failure.
Do you believe the Turkish population is aware of these risks?
Among the educated population, there’s a growing awareness of the risks associated with antibiotic resistance and the inappropriate use of antibiotics. However, this awareness is lacking among the non-educated groups of Turkish society. In a lot of cases, we see a strong preference for injectable antibiotics over oral ones, even in minor infections. Especially the overuse of antibiotics for respiratory infections remains a problem. Part of the cause is the difficulty to diagnose those infections and the expensive diagnostic tests.
What is the expected impact of the work you’re doing?
In my laboratory, we collaborate closely with clinicians to address emerging infectious disease challenges in our country and region. Embracing a ‘One Health’ approach, we engage infectious disease specialists, veterinarians, and agricultural professionals to monitor antibiotic resistance across Turkey. This collaborative effort aims to contribute significantly to the prevention and control of AMR. Additionally, our team conducts clinical research focusing on antibiotic resistance and antimicrobial stewardship. Through initiatives such as AMS programs and evaluating the impact of rapid diagnostic systems on patient outcomes, we aim to improve clinicians’ ability to manage patients effectively.
One of the aims of VALUE-Dx is to demonstrate the value of diagnostics to change the antibiotics prescribing behaviour. Can you comment on this?
Rapid diagnostic systems are crucial yet their high cost remains a barrier, especially for countries like Turkey with limited economic resources. Cheaper diagnostic tools are essential, but ensuring their effectiveness across different regions, including those with specific resistance genes, is equally vital. It’s essential that diagnostic tools developed by companies in Europe or the United States address a broader range of resistance issues to have a meaningful impact globally.
How did the COVID-19 pandemic impact the research on AMR?
During the COVID-19 pandemic, our research laboratory faced significant shifts in focus and resources. The launch of our lab was originally delayed due to financial factors but because of the start of the pandemic, new funds became available. So, we were able to conduct vital COVID-19 studies. However, travel restrictions and lab closures delayed our AMR studies. Similarly, across Turkey, microbiologists redirected their efforts towards COVID-19 diagnostics, with routine laboratories repurposed for testing. Despite these challenges, we remain committed to resuming our AMR projects and anticipate catching up on our schedule within the coming months.
On the positive side, there has been a significant increase in awareness regarding the appropriate use of antibiotics for respiratory infections. Previously, all pneumonia cases were typically treated with antibiotics, but now there’s recognition that viral infections can also cause pneumonia. This shift has led to improved understanding among both the general population and the medical community, with people now aware of viral pneumonia and the importance of distinguishing between bacterial and viral infections. Additionally, the pandemic has contributed to greater public knowledge about PCR tests, thanks to educational programs and discussions on television.
- About Füsun Can
Prof. Füsun Can is a professor in the department of Medical Microbiology at the Koc University, School of Medicine. She is also the laboratory director of the Koc University Research Center for Infectious Diseases in in Koç University. Her research interests span antimicrobial resistance and emerging diseases. Much of her work on molecular epidemiology of antibiotic resistance and host-pathogen interactions. She is editor of books on Emerging Infectious Diseases: Clinical Case Studies (2014, Elsevier, awarded by British Medical Association as the book of the year), and Antimicrobial Stewardship (Elsevier, 2018). She is a member of ESCMID (European Society of Clinical Microbiology and Infectious Diseases) and American Society for Microbiology (ASM).
More interviews
