65. Jahrestagung der deutschen Gesellschaft für Phlebologie
Duisburg (Germany), 6 - 9 September, 2023
Meet Dr Ragg and his team!
Phlebologische Prävention - von der Idee zur Methode
Sitzung der AG Prävention | Vorsitz: J. C. Ragg, Berlin
Tätigkeitsbericht der AG Prävention, Venartis Forschungspreis: J. C. Ragg, Berlin
Neue Studiendaten über Frühstadien der venösen Insuffizienz: N.N.
Optimierte Therapie der saphenofemoralen Crosse: T. Belyavskaya, Berlin
Ultraschallschnellkurs: Individuelle Ursachen der venösen Insuffizienz: S. Kreis, Zürich (CH)
KI-gestützte Studie: Progressionsmuster der venösen Insuffizienz: J. C. Ragg, Berlin
Für die Praxis: Richtige und falsche Ratschläge für Venenpatienten: O. R. Despa, Berlin
23. Annual Meeting of the European Venous Forum
Berlin, Germany, June 22-24, 2023
Poster: Eccentric venous ectasias of the intra- and epifascial system -- a primary correlate of insufficiency
Meet Dr Ragg and his team in Berlin!
23. Annual Scientific Meeting of the Australasian College of Phlebology (ACP)
Adelaide, Australia, May 6-9, 2023
4 Lectures "Venous insufficiency in children and adolescents: Progression over 4-6 years“, "Eccentric venous ectasias of the intra- and epifascial system: A primary correlate of insufficiency", "Intraindividual comparison of 1470 nm and 1940 nm endovenous laser systems and Biomatrix sclerosing foam“, "Hyaluronan gels in the treatment of valve lesions, vein dilatations and insufficiencies"
American Venous Forum 2023
San Antonio, Texas, February 22-25, 2023
Meet Dr. Ragg!
Presentation "Venous Insufficiency in Children and Adolescents: Progression Over 4 Years“ | February 23, 2023
The Berlin Workshop of Future Phlebology 2022
Berlin November 5 and 6, 2022
more information >>
22. Unionstagung der Schweizerischen Gesellschaften für Gefässkrankheiten
Zurich (Switzerland)
2. - 4. November 2022
Meet Dr Ragg and his team!
Flash Talks | 3 November 2022
64. Jahrestagung der deutschen Gesellschaft für Phlebologie
Hannover (Germany), 28 September - 1 October, 2022
Meet Dr Ragg and his team!
29 September
Lecture | Kompression postinterventionell
1 October
Lecture | Neue Studiendaten über Frühstadien der venösen Insuffizienz
Lecture | Kompressionsstrümpfen und Pharmazeutika in der Prävention
Lecture | Haben chirurgische und endovenöse Modalitäten einen präventiven Wert?
Lecture | Aktuelle Empfehlungen zur Etablierung präventiver Konzepte
Lecture | Prävention in der Phleobologie – Utopie und Realität
UIP World Congress of Phlebology 2022
Istanbul, 12-16 September, 2022
Lecture and Poster | Prevention in Phlebology – Late Results of PREVENT12
62. Jahrestagung der deutschen Gesellschaft für Phlebologie
Leipzig (Germany), 2-5 September, 2020
Dr Ragg belongs to the congress advisory board.
Meet Dr Ragg!
3 September
COVID-19 in der Phlebologie | chairman and speaker
Lecture | Falldiskussion: Femoropopliteale Venenthrombose bei einer Patientin mit Covid-19-Infektion und vorbekanntem Venenstatus
4 September
Kompressionstherapie | speaker
Lecture | Optionen der internen Kompression mit perivenösen Fillern
Prävention in der Phlebologie | chairman and speaker | Formelle Gründung der AG Prävention
Lecture | Prävention in der Phlebologie – Einführung
Lecture | Neuheiten in der Prävention der intra- und epifaszialen Insuffizienz
Complications of CVD | moderator and speaker
Lecture | Learning on the example of the waterfall – the importance of hemodynamic pressure for the progression of the CVD
5 September
Innovations in Phlebology and Lymphology | speaker and panel
Lecture | Scleroglue UV plus – ultraviolet light activated vein gluing
Specials in Phlebology | speaker
Lecture | Erste Versuche mit einem modularen Laser-, Schaum- und Klebesystem (ScleroGlue® plus)
33rd AVLS (ACP) Annual Congress 2019
Phoenix, 7-10 November, 2019
The Berlin Workshop of Future Phlebology 2019
Berlin, November 2-3, 2019
10th EVF HOW 2019
Riga,17-19 October, 2019
Another Phlebology | 3rd International Workshop
Budapest, October 4-5, 2019
61st Annual Meeting of the German Society of Phlebology (DGP)
Münster, September 25-27, 2019
20th Annual Scientific Meeting of the Australasian College of Phlebology
Cairns, May 5-7, 2019
Speaker: Dr Johann Christof Ragg Phlebologist, Germany
Dr Johann Christof Ragg is a vein specialist from Berlin, Germany. He was born in 1957 in Bad Wildungen in Hesse. He studied physics with a focus on laser physics, then medicine. In 2000 he founded his practice focusing on venous and arterial complications, and 2003 founded Angioclinic® in Berlin.For many years, Dr. Ragg has conducted research in the field of vascular medicine and holds many patents. He has published multiple articles on the use of hyaluronan in venous procedures and on film compression bandages. He has won multiple awards for research presentations from the American College of Phlebology, European Venous Forum, American Venous Forum, the German Society of Phlebology and the International Union of Phlebology. (see page 8 of Conference Handbook, PDF)
vWINter days meeting 2019
Meet Dr. Ragg at the vWINter days meeting
Dr. Ragg: "It´s the most international, most innovative and
therefore most important phlebology meeting in 2019“
Cortina d´Ampezzo (Italy), January 23 - 25, 2019
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vWINterdays meeting 2019 | Experts discussing on stage: Mark Whiteley (UK), Chris Ragg, Ravul Jindal (India) and Lowell Kabnick (USA) |
vWINterdays meeting 2019 | At the Venartis booth: Margaryta Zagdorodnyuk, Chris Ragg and Birgit Marquardt with Sergio Gianesini, host of the vWINterdays meeting |
11. Saint Petersburg Venous Forum (SPVF)
St. Petersburg, November 29 – December 1, 2018
The Berlin Workshop of Future Phlebology 2018
Berlin, October 6-7, 2018
60th Annual Meeting of the German Society of Phlebology
Bielefeld, September 26-29, 2018
19th Meeting of the European Venous Forum (EVF)
Athens, June 28-30, 2018
38th Annual Meeting for Japanese Society of Phlebology
Yokosuka, June 14-15, 2018
18th International Congress on Phlebology and Lymphology
Buenos Aires, June 6-8, 2018
COP International Veins Meeting 2018
London, March 14-16, 2018
IMAP São Paulo

São Paulo, March 2-4, 2018
American Venous Forum
Tucson, AZ, February 20-23, 2018
World Congress of Phlebology
Melbourne, February 4-8, 2018
Master Course in Phlebology
Riga, November 24-25, 2017
ACP Annual Congress
Austin, Texas, November 2-5, 2017
18. Unionstagung der Schweizerischen Gesellschaften für Gefässkrankheiten

Montreux, November 1-3, 2017
59. Jahrestagung der Deutschen Gesellschaft für Phlebologie
Stuttgart, September 20-23, 2017