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Featured researches published by Ricardo Erdmann.


Journal of The European Academy of Dermatology and Venereology | 2009

European S3‐Guidelines on the systemic treatment of psoriasis vulgaris

Delano Pathirana; A.D. Ormerod; P Saiag; Catherine Smith; Phyllis I. Spuls; Alexander Nast; Jonathan Barker; Jd Bos; Gr Burmester; Sergio Chimenti; Louis Dubertret; Bernadette Eberlein; Ricardo Erdmann; J Ferguson; Giampiero Girolomoni; Paolo Gisondi; A Giunta; C.E.M. Griffiths; H. Hönigsmann; Munther Hussain; R Jobling; Sl Karvonen; Lajos Kemény; Ina Kopp; Craig L. Leonardi; Mara Maccarone; Alan Menter; Ulrich Mrowietz; Luigi Naldi; Tamar Nijsten

Of the 131 studies on monotherapy or combination therapy assessed, 56 studies on the different forms of phototherapy fulfilled the criteria for inclusion in the guidelines. Approximately three-quarters of all patients treated with phototherapy attained at least a PASI 75 response after 4 to 6 weeks, and clearance was frequently achieved (levels of evidence 2 and 3). Phototherapy represents a safe and very effective treatment option for moderate to severe forms of psoriasis vulgaris. The onset of clinical effects occurs within 2 weeks. Of the unwanted side effects, UV erythema from overexposure is by far the most common and is observed frequently. With repeated or long-term use, the consequences of high, cumulative UV doses (such as premature aging of the skin) must be taken into consideration. In addition, carcinogenic risk is associated with oral PUVA and is probable for local PUVA and UVB. The practicability of the therapy is limited by spatial, financial, human, and time constraints on the part of the physician, as well as by the amount of time required by the patient. From the perspective of the cost-bearing institution, phototherapy has a good cost-benefit ratio. However, the potentially significant costs for, and time required of, the patient must be considered.


Journal of The European Academy of Dermatology and Venereology | 2012

European Evidence‐based (S3) Guidelines for the Treatment of Acne

Alexander Nast; B. Dréno; Vincenzo Bettoli; Klaus Degitz; Ricardo Erdmann; Andrew Yule Finlay; Ruta Ganceviciene; Merete Haedersdal; Alison Layton; J.L. López-Estebaranz; Falk Ochsendorf; C. Oprica; S. Rosumeck; Berthold Rzany; Adel Sammain; T. Simonart; N.K. Veien; M.V. Živković; Christos C. Zouboulis; Harald Gollnick

Subcommittee Members: Dr. Alexander Nast, Berlin (Germany) Dr. Cristina Oprica, Stockholm (Sweden) Prof. Dr. Brigitte Dreno, Nantes (France) Mrs. Stefanie Rosumeck, Berlin (Germany) Dr. Vincenzo Bettoli, Ferrara (Italy) Prof. Dr. Berthold Rzany, Berlin (Germany) Prof. Dr. Klaus Degitz, Munich (Germany) Dr. Adel Sammain, Berlin (Germany) Mr. Ricardo Erdmann, Berlin (Germany) Dr. Thierry Simonart, Brussels (Belgium) Prof. Dr. Andrew Finlay, Cardiff (United Kingdom) Dr. Niels Kren Veien, Aalborg (Denmark) Prof. Dr. Ruta Ganceviciene, Vilnius (Lithuania) Dr. Maja Vurnek fivkovi , Zagreb (Croatia) Dr. Alison Layton, Harrogate (United Kingdom) Prof. Dr. Christos Zouboulis, Dessau (Germany) Dr. Jose Luis Lopez Estebaranz, Madrid (Spain) Prof. Dr. Falk Ochsendorf, Frankfurt (Germany) Prof. Dr. med. Harald Gollnick, Magdeburg (Germany)


Journal Der Deutschen Dermatologischen Gesellschaft | 2012

S3 – Guidelines on the treatment of psoriasis vulgaris (English version). Update

Alexander Nast; Wolf-Henning Boehncke; Ulrich Mrowietz; Hans-Michael Ockenfels; Sandra Philipp; Kristian Reich; Thomas Rosenbach; Adel Sammain; Martin Schlaeger; Michael Sebastian; Wolfram Sterry; Volker Streit; Matthias Augustin; Ricardo Erdmann; Joachim Klaus; Joachim Koza; Siegrid Muller; Hans-Dieter Orzechowski; Stefanie Rosumeck; Gerhard Schmid-Ott; Tobias Weberschock; Berthold Rzany

Psoriasis vulgaris is a common and often chronic inflammatory skin disease. The incidence of psoriasis in Western industrialized countries ranges from 1.5% to 2%. Patients afflicted with severe psoriasis vulgaris may experience a significant reduction in quality of life. Despite the large variety of treatment options available, surveys have shown that patients still do not received optimal treatments. To optimize the treatment of psoriasis in Germany, the Deutsche Dermatologi sche Gesellschaft (DDG) and the Berufsverband Deutscher Dermatologen (BVDD) have initiated a project to develop evidence‐based guidelines for the management of psoriasis. They were first published in 2006 and updated in 2011. The Guidelines focus on induction therapy in cases of mild, moderate and severe plaque‐type psoriasis in adults including systemic therapy, UV therapy and topical therapies.


British Journal of Dermatology | 2013

The natural history of actinic keratosis: a systematic review

Ricardo Niklas Werner; A. Sammain; Ricardo Erdmann; V. Hartmann; Eggert Stockfleth; Alexander Nast

Knowledge about the development of untreated actinic keratosis (AK) and risk of progression into squamous cell carcinoma (SCC) is important. Therefore, we set out to synthesize primary data on the natural history of AK. We carried out a systematic literature search (Medline, Medline in Process, Embase, Cochrane) of studies on the natural course of AK, regarding (i) progression and regression rates per lesion‐year, (ii) changes in total lesion counts over time, and (iii) spontaneous field regression and recurrence rates, taking into account studies on participants without immunosuppression and history of skin cancer, immunosuppressed patients and participants with a history of skin cancer and sunscreen use. Twenty‐four eligible studies were identified providing data on at least one of the outcomes. Progression rates of AK to SCC ranged from 0% to 0·075% per lesion‐year, with a risk of up to 0·53% per lesion in patients with prior history of nonmelanoma skin cancer. Rates of regression of single lesions ranged between 15% and 63% after 1 year. The data available on recurrence rates of single lesions 1 year after regression indicate a recurrence rate of 15–53%. Data on the relative change of total AK count over time are heterogeneous, and range from −53% to +99·1%. Spontaneous complete field regression rates range from 0% to 21%, with recurrences in 57%. In general, the available data are limited. Important methodological limitations apply. Currently, no reliable estimates concerning the frequency of AK developing into invasive carcinoma can be given, and further studies are needed.


Journal of The European Academy of Dermatology and Venereology | 2015

Evidence- and consensus-based (S3) Guidelines for the Treatment of Actinic Keratosis - International League of Dermatological Societies in cooperation with the European Dermatology Forum - Short version

Ricardo Niklas Werner; Eggert Stockfleth; S.M. Connolly; Osvaldo Correia; Ricardo Erdmann; Peter Foley; Aditya K. Gupta; A. Jacobs; H. Kerl; H.W. Lim; G. Martin; M. Paquet; David M. Pariser; Stefanie Rosumeck; H.-J. Röwert-Huber; A. Sahota; O.P. Sangueza; Stephen Shumack; B. Sporbeck; N.A. Swanson; Luís Torezan; Alexander Nast

Actinic keratosis (AK) is a frequent health condition attributable to chronic exposure to ultraviolet radiation. Several treatment options are available and evidence based guidelines are missing.


Journal of Cosmetic Dermatology | 2009

Hyaluronidase in the correction of hyaluronic acid‐based fillers: a review and a recommendation for use

Berthold Rzany; Petra Becker-Wegerich; Frank Bachmann; Ricardo Erdmann; Uwe Wollina

Background  Hyaluronic acid (HA) preparations are the most commonly used injectable fillers in esthetic medicine. In contrast to other injectable fillers with hyaluronidase, there is a tool available to reduce unwanted depots of this filler.


Archives of Dermatological Research | 2012

German S3-guidelines on the treatment of psoriasis vulgaris (short version)

Alexander Nast; Wolf-Henning Boehncke; Ulrich Mrowietz; Hans-Michael Ockenfels; Sandra Philipp; Kristian Reich; Thomas Rosenbach; Adel Sammain; Martin Schlaeger; Michael Sebastian; Wolfram Sterry; Volker Streit; Matthias Augustin; Ricardo Erdmann; Joachim Klaus; Joachim Koza; S. Müller; Hans-Dieter Orzechowski; Stefanie Rosumeck; Gerhard Schmid-Ott; Tobias Weberschock; Berthold Rzany

Psoriasis vulgaris is a common and often chronic inflammatory skin disease. The incidence of psoriasis in Western industrialized countries ranges from 1.5 to 2%. Patients afflicted with severe psoriasis vulgaris may experience a significant reduction in quality of life. Despite the large variety of treatment options available, patient surveys have revealed insufficient satisfaction with the efficacy of available treatments and a high rate of medication non-compliance (Richards et al. in J Am Acad Dermatol 41(4):581–583, 1999). To optimize the treatment of psoriasis in Germany, the Deutsche Dermatologische Gesellschaft (DDG) and the Berufsverband Deutscher Dermatologen (BVDD) have initiated a project to develop evidence-based guidelines for the management of psoriasis first published in 2006 and now updated in 2011. The Guidelines focus on induction therapy in cases of mild, moderate, and severe plaque-type psoriasis in adults. This short version of the guidelines presents the resulting series of therapeutic recommendations, which were based on a systematic literature search and discussed and approved by a team of dermatology experts. In addition to the therapeutic recommendations provided in this short version, the full version of the guidelines includes information on contraindications, adverse events, drug interactions, practicality, and costs, as well as detailed information on how best to apply the treatments described (for full version please see Nast et al. in JDDG Suppl 2:S1–S104, 2011 or http://www.psoriasis-leitlinie.de).


Journal of The European Academy of Dermatology and Venereology | 2012

Efficacy of systemic therapies for moderate‐to‐severe psoriasis: a systematic review and meta‐analysis of long‐term treatment

T.C. Lucka; Delano Pathirana; Adel Sammain; F. Bachmann; Stefanie Rosumeck; Ricardo Erdmann; Jochen Schmitt; H. Orawa; Berthold Rzany; Alexander Nast

Background  Despite the chronicity of psoriasis, most systematic reviews focus on short‐term treatment.


Dermatologic Surgery | 2009

The Spectrum of Adverse Reactions After Treatment with Injectable Fillers in the Glabellar Region: Results from the Injectable Filler Safety Study

Frank Bachmann; Ricardo Erdmann; Vanessa Hartmann; Luitgard Wiest; Berthold Rzany

BACKGROUND For the glabellar region, severe partly vascular adverse events have been reported after treatment with injectable fillers. METHODS AND MATERIALS For this study, data from the Injectable Filler Safety Study, a German‐based registry for those reactions, was analyzed to characterize adverse events seen in the glabellar region. Patients were analyzed descriptively. RESULTS Forty of 139 registered patients reported adverse events in the glabellar region. All patients were female, with an average age of 52.3. Nineteen patients with adverse reactions to hydroxyethylmethacrylate (HEMA) and ethylmethacrylate (EMA) in a fixed combination with hyaluronic acid (HA) and 10 patients with adverse reactions to different hyaluronic acid products were reported; five patients reacted to poly‐l‐lactic acid (PLA). The most common adverse reactions to HEMA/EMA in HA and PLA were nodules and hardening. In HA‐treated patients, erythema and inflammation, swelling, and pain were most frequent. The adverse reactions to HEMA/EMA in HA were severe in 50% of the patients. Severe adverse reactions were found to a lesser extent in patients treated with HA and PLA. Potential vascular complications were documented in only two patients. CONCLUSION Adverse reactions seen in the glabella are overwhelmingly product associated and to a lesser extent location associated. Vascular complications with necrosis and ulceration were rare. Dr. Rzany is an advisor for Johnson & Johnson, Merz, Pharmaceuticals GmbH, Q‐Med, and Teoxane Laboratoires.


Journal of The European Academy of Dermatology and Venereology | 2015

Evidence-based (S3) Guideline on (anogenital) Lichen sclerosus

G. Kirtschig; K. Becker; A. Günthert; D. Jasaitiene; S. Cooper; Ching-Chi Chi; A. Kreuter; K.K. Rall; Werner Aberer; S. Riechardt; F. Casabona; J. Powell; F.A. Brackenbury; Ricardo Erdmann; M. Lazzeri; G. Barbagli; F. Wojnarowska

Lichen sclerosus (LS) is an inflammatory skin disease that usually involves the anogenital area. All patients with symptoms or signs suspicious of lichen sclerosus should be seen at least once initially by a physician with a special interest in the disease in order to avoid delay in diagnosis, as early treatment may cure the disease in some and reduce or prevent scarring. The diagnosis is made clinically in most cases. Biopsies should only be performed under certain circumstances. The gold standard for treatment remains potent to very potent topical steroids; however, mild and moderate disease in boys and men may be cured by circumcision. Certain triggers should be avoided. http://www.euroderm.org/images/stories/guidelines/2014/S3-Guideline-on-Lichen-sclerosus.pdf http://www.awmf.org/fachgesellschaften/mitgliedsgesellschaften/visitenkarte/fg/deutsche-gesellschaft-fuer-gynaekologie-und-geburtshilfe-dggg.html.

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