Dear Professor Radenković,

Sincere congratulations on a top‑level, very high‑quality, professionally executed Congress. I truly enjoyed listening to the lecturers.

Prof. Dr. Robert Ekart, invited lecturer, Faculty of Medicine, University of Maribor

Many congratulations on the outstanding KARNEF, and all compliments for your energy and creativity, which are exemplary.

It has always been an honor for me to be part of KARNEF.

Prof. Dr. Rafael Ponikvar, invited lecturer, Faculty of Medicine, University of Ljubljana

Dear Prof. Sonja,

I would like to congratulate you on the excellently organized KARNEF this year, considering the less favorable circumstances in our country compared to previous years, but everything was more than perfect.

I hope that through my participation I made a modest contribution and met your expectations.

For me, this KARNEF 2025 was very inspiring because of the topics you assigned to me, but I also heard and saw many things myself, starting from the exclusive lectures, and I met numerous colleagues from abroad who are truly at the top of European and world cardionephrology. Participating in all activities was both enjoyable and a great honor.

Even the conversation with the citizens was inspiring in its own way, considering that as a pulmonologist I was also able to “offer” them some information in response to their questions from my field.

Prof. Dr. Milan Radović, Faculty of Medicine, University of Niš, Serbia

From May 29 to 31 this year, the 7th International Congress of Cardionephrology and the 2nd International Symposium on Arterial Hypertension were held in Pirot.

The first impression is the very high academic level of the lecturers, who are leading experts and references in their fields of scientific and educational work.

It was a pleasure to listen to, watch, and follow lecturers from many foreign countries, Serbia, and the ex‑Yugoslav region.

The organization of the event, technical support, and the venue were fully aligned with the scientific level of the gathering, which positions Pirot—a small town of about 40,000 inhabitants, situated “in the middle of the road” between two major university centers (Sofia and Niš)—as a serious center for hosting such events.

For me and my fellow retired colleagues, attending such a gathering was immeasurable pleasure, and for young colleagues—a challenge and encouragement for the level they should strive for.

And finally, the spiritus movens of this, as well as previous gatherings, was Prof. Sonja Radenković, whose persistence, will, energy, academic impact, and communication skills captivate and impress.

Dr. Ivanov Dimitar, retired radiologist, currently engaged as an ultrasonographer at the “Devamed” Polyclinic in Pirot – participant

Dear colleague,

First, I would like to thank you for the kind invitation to participate in your congress. It was truly wonderful—excellent organization and a warm welcome that is rarely seen anymore, thank you very much!

Prof. Dr. Ružica Maksimović, invited lecturer, Clinical Center of Serbia, Faculty of Medicine, University of Belgrade

Dear Sonja,

The congress was very successful and quite inspiring for me. I feel deeply grateful for your gracious hospitality.

Prof. Dr. Davide Viggiano, Italy – invited lecturer, Faculty of Medicine, University of Naples

Dear Prof Radenkovic, dear Sonja,

Congratulations on an exceptionally professionally organized KARNEF. Like all the previous ones I have attended, this one was also exceptionally high professional level. I would also like to thank you for the exceptional hospitality.

Prof Dr. Radovan Hojs, Slovenian Society of Internal Medicine 

✅ 7th International Congress of Cardionephrology – KARNEF 2025
29th–30th May 2025
Location: Pirot, Serbia 🇷🇸

🎤 Role:
• Speaker - Moderator

🧠 Presentation Topic:
• "Assessment of the state of perfusion of the heart
and kidneys - importance in early diagnosis and prevention"

Honored to co-moderate this very interesting EDUCATIONAL SEMINAR entitled "The role of modern “imaging” techniques in the diagnosis and treatment of heart and kidney diseases" together with Prof. Ruzica Maksimovic

🌍 Event Highlights:
• Brought together leading professionals in cardiology, clinical pharmacology endocrinology, hematology, histology, internal medicine, nephrology, pulmonology and radiology
• Featured cutting-edge research and clinical practices
• Promoted interdisciplinary dialogue and collaboration
• Included participants from various countries and institutions

🤝 My Experience:
• Honored to contribute to a high-level scientific exchange
• Engaged with colleagues and experts in productive discussions
• Gained new insights and built valuable professional connections

🙏 Acknowledgment:
• Grateful to the organizers, especially to Prof. Sonja Radenković for the invitation and exceptional event coordination
• Looking forward to future collaborations in the field of cardionephrology

Dr. Alexandros Kalifatidis, invited lecturer, Clinic “Sveti Luka”, Solun, Grčka

All praise for KARNEF 2019. The Congress was held in a pleasant atmosphere in Ribarska Banja. The congress hall was equally comfortable for both vendors and listeners. The timetable was respected as much as possible, and most importantly, there were many high-quality and interesting lectures. 

This was a great opportunity to exchange professional experience with colleagues from our country and abroad. Once again, all praise for the organization of such a large gathering and I hope for continued cooperation next year.

Prof. Jelena Nešović Ostojić, Institute of Pathological Physiology, Faculty of Medicine, Belgrade  

I think that this year, as well as many previous ones, the Cardionephrology and Hypertension Congress deserves a high scientific rating and praise, first of all, for the carefully selected current topics in this field. We have witnessed that many of the latest basic and experimental tests in cardionephrology are not far from being applied in clinical practice today, which is very important in the diagnosis and treatment of patients with chronic kidney disease, as well as primary heart failure complicated by kidney failure. The latest genetic research in this area, as well as pathophysiological mechanisms, have provided new knowledge that provides the opportunity for better treatment and timely diagnosis of patients with cardiorenal or renocardial syndrome. This year too, we had the opportunity to hear lectures by colleagues and eminent experts from abroad, which is especially important and educational for young doctors, clinicians, but also young scientists dealing with basic science. 

From the very beginning of its existence, this Congress has fostered a multidisciplinary approach, the cooperation of experts of various profiles, both in basic science, on the one hand, and with clinicians, nephrologists, cardiologists, endocrinologists, on the other hand, Educational seminars that dealt with current topics in cardionephrology gave a special stamp to this year's meeting and confirmed, once again, its quality and the need to continue to foster continuity in the monitoring of scientific knowledge in the field of cardionephrology. 

Ribarska Banja is a beautifully chosen setting for this event. Thank you once again prof. Sonja Radenković for the great energy and effort she invests every time to organize this meeting, and above all for the carefully selected current topics.

Prof. Dr. Gordana Perunićić-Peković MD PhD

KARNEF 2019 was a very well organized congress with a large number of exceptional lecturers and interesting lectures perfectly combined with social events and an attractive place such as Ribarska Banja.

Dr. Radmila Novakovic, Research Associate  

Institute of Pharmacology, Clinical Pharmacology and Toxicology, Faculty of Medicine, University of Belgrade 

"Save the date" it gains importance when KARNEF is mentioned. An exceptional scientific meeting worthy of the attention of every nephrologist, cardiologist, physiologist, biologist... On behalf of myself and our colleagues, we can't wait for the next meeting. 

Dr. Milan Ivanov

An exceptional meeting of top professionals from whom one could hear and learn a lot. There is a noticeable increase in the reputation and importance of the group with each subsequent event. Professor Radenković's enthusiasm and energy regarding the organization and implementation of the entire event are truly admirable .

Dr. Zoran Miloradović, scientific councillor , University of Belgrade, Institute for Medical Research  

The meeting was good, lectures at a high level, maybe there should be a little more listeners (which is easy to say, but the reality...) Ribarska Banja is one of the most beautiful places I have seen in Serbia.

Prof. Dr. Radovan Hojs, University of Maribor

Thank you for the wine, for the wonderful conference, for all the good people I met  (I am setting up a research project on the effects of iv iron on the heart with 2 of the Italians). 

For the beautiful place we stayed in the heart of nature with its springs forests and beautiful buildings - a perfect spot. And all this is because of you!!! Bless you and your tireless work.

Don Silverberg, Medical Faculty of University Tel Aviv

Dear prof. Radenkovic,

I thank you once again for your hospitality in the wonderful Ribarska Banja. Congratulations for the excellent program of the KARNEF congress and top lecturers. I hope that with my participation I also contributed to the quality of Karnef. The only pity is that there were so few people at the lectures. 

Many thanks again for everything!! 

Kind regards,

Robert Ekart

Dear  Sonja,

Once again I want to thank you for the invitation to the KARNEF meeting. It was a pleasure to participate and meet collegues. All the organization was superb and great. 

Many many thanks!

Grazia Tamma, PhD, Department of Biosciences Biotechnologies Biopharmaceutics, Associate Professor of Physiology, University of Bari Aldo Moro

This year's Cardionephrology Congress repeated its success from previous years, both in terms of carefully selected topics, and in terms of the topicality of the data presented by the participants, basic scientists, molecular biologists, geneticists, as well as clinicians, eminent teachers from the country and abroad. The multidisciplinarity is an invaluable benefit of such a meeting, hence the interest of the meeting participants to come again in the following years. 

I am of the opinion that the tradition of this Congress should not be interrupted, despite the various difficulties with which Prof. Radenkovic is dealing during the preparations for holding it. Once again, sincere congratulations to Prof. Radenkovic for the exceptionally good organization and management of the Congress and the selection of lecturers, as well as an appeal to the authorities to show empathy and understanding for the necessity of holding this Congress in the future as well.

Kind regards,

Prof. Dr. sc. med. Zorica Rašić-Milutinović, Internist practice Rašić  

Thank you for your kind invitation to the KARNEF meeting and your hospitality and very warm welcome on this occasion. I really enjoyed meeting you and attending part of the scientific meeting in a so nice and beautiful place. Unfortunately my time schedule was too short to stay longer and not really enjoying more of Ribarska Banja, Next time I will try to stay longer.

Prof. Dr. Bernard Canaud, Canada

Dear Sonja,

Once again, I have to emphasize the extraordinary success and level of the Congress, which took place and continues for so long, thanks above all to you. I won't repeat myself any more, but I really congratulate you and I want you to continue with the same strength and to continue gathering a quality team in a nice environment. Perhaps it is interesting precisely with the change of location, in order to get to know more areas of our beautiful country.

Cordially,

Zorica Rašić, invited lecturer

Dear professor,

Thank you for the international congress that you organized for us. I am really delighted with the seriousness of the congress and the choice of topics. I am also delighted by the attendance of lecturers from all over the world, as well as the dedication of fellow listeners. I would like to thank you for the perfect and beautiful organization of the congress and for everything you have done for us - the participants of the congress .

Kind regards,

Vanja Ničković

Thank you for the pictures, for your efforts in creating an interesting program and for your sweet nature which made us all feel so welcome. I enjoyed the meeting and the other affairs very much as well as the many excellent speakers.

Don Silverbeerg, University of Tel Aviv 

Dear Prof. Radenkovic,

I thank you for the kind invitation. The meeting organization was excellent and the information conveyed by the speakers were very fruitful.

With all my best regards,

Yours sincerely,

Davide Viggiano, University of Napoli

Thank you Sonja. It was very nice to see you in Pirot.  I hope to see you and all my serbian friends soon. Best regards and thank you again. 

Isidre Vilacosta, Spain

Dear Sonja,

Many thanks for the photos! I really enjoyed talking at the conference. All travel arrangements work out very well.

Best wishes

Peter Kotanko, MD, FASN

Research Director | Renal Research Institute, New York

Adjunct Professor of Medicine, Nephrology | Icahn School of Medicine at Mount Sinai

Thank you VERY much Sonja. It was a beautiful experience, I was very happy to visit your country.

Paolo Raggi, MD, FACC, FAHA, FACP, FASNC, FSCCT

Director, Mazankowski Alberta Heart Institute, Professor of Medicine, University of Alberta

Co-Editor in Chief-Atherosclerosis, Capital Health Chair in Cardiac Research

Dear prof. Radenković,

I would like to take this opportunity to thank you for the extraordinary organization, the fantastic excursion and all the attention!

Participating in the congress you organized gave me great pleasure. Thank you very much!

Kind regards,

Doc. Dr. Jelena Lazarević, Medical Faculty of Nis  

Once again, I congratulate you on the extraordinary organization of the Congress! I am very honored to be part of this wonderful story called CARDIONEPHROLOGY. Thanks for everything.

Slobodan Antic 

The Congress met expectations and contributed to practice with new applicable knowledge. All praise for the selection of lecture topics, the lecturers and the organization of the Congress.

Smelcerovic Andrija