Volume 85, Issue 1 pp. 20-25

Frequency of congenital dyserythropoietic anemias in Europe

Hermann Heimpel

Hermann Heimpel

Department of Internal Medicine III, University Hospital of Ulm, Germany

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Andreas Matuschek

Andreas Matuschek

Department of Internal Medicine III, University Hospital of Ulm, Germany

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Momin Ahmed

Momin Ahmed

Department of Haematology, The Royal London Hospital, London, UK

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Brigitte Bader-Meunier

Brigitte Bader-Meunier

Pédiatrie Hématologie et Immunologie, Hôpital Necker, AP-HP, Paris, France

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Adriana Colita

Adriana Colita

Bone Marrow Transplantation Department, Fundeni Clinical Institute, Bucharest, Romania

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Jean Delaunay

Jean Delaunay

INSERM U 779, Faculté de Médecine Paris-Sud, Univ Paris-Sud, Le Kremlin-Bicêtre, France

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Loic Garcon

Loic Garcon

Service d’Hématologie Biologique, Hôtel-Dieu, Paris, France

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Florinda Gilsanz

Florinda Gilsanz

Hematologia, Hospital Universitario Doce de Octubre, Madrid, Spain

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Jeroen Goede

Jeroen Goede

Department of Haematology, University Hospital of Zurich, Switzerland

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Josef Högel

Josef Högel

Institute for Human Genetics, University Hospital of Ulm, Germany

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Elisabeth Kohne

Elisabeth Kohne

Department of Pediatrics, University Hospital of Ulm, Germany

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Rosi Leichtle

Rosi Leichtle

Department of Internal Medicine III, University Hospital of Ulm, Germany

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Juan Munoz

Juan Munoz

Servicio de Hematologia, Hospital Puerta del Mar, Cadiz, Spain

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Silverio Perrotta

Silverio Perrotta

Department of Pediatrics, Second University of Naples, Italy

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Carlo Piscopo

Carlo Piscopo

CEINGE, Medical Genetics, University Federico II of Naples, Italy

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Raffaele Renella

Raffaele Renella

MRC Molecular Haematology Unit, John Radcliffe Hospital, Oxford, UK

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Klaus Schwarz

Klaus Schwarz

Institute for Transfusion Medicine, University of Ulm and Institute for Clinical Transfusion Medicine and Immunogenetics Ulm, Germany

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Gabriela Smolenska-Sym

Gabriela Smolenska-Sym

Institute of Hematology and Transfusion Medicine, Warszawa, Poland

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Sunitha Wickramasinghe

Sunitha Wickramasinghe

Department of Haematology, St. Marys Hospital, London, UK

Deceased. This work is dedicated to our late friend, Professor Sunitha Wickramasinghe.

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Alberto Zanella

Alberto Zanella

Department of Haematology, IRCCS Ospedale Maggiore Policlinico, Milan, Italy

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Achille Iolascon

Achille Iolascon

CEINGE, Medical Genetics, University Federico II of Naples, Italy

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First published: 15 June 2010
Citations: 36
Hermann Heimpel, Department Internal Medicine III, University Hospital of Ulm, 89081 Ulm, Germany. Tel: +49(0)731 500 69413; Fax: +49(0)731 500 69412; e-mail: [email protected]

Supported by the University of Ulm, the Else Kröner-Fresenius Stiftung Bad Homburg, Germany and the European Network on Rare Congenital Anemias (ENERCA).

Abstract

Congenital dyserythropoietic anemias (CDAs) are rare hereditary disorders characterized by ineffective erythropoiesis and striking abnormalities of erythroblast morphology. The mutated genes are known for the most frequent types, CDA I and II, but data about their frequency do not exist. The objective of this retrospective study was to estimate the frequency of CDA I and II, based on all cases reported in the last 42 yr in publications and identified registries or surveys. Reports were collected of 124 and 377 confirmed cases of CDA I and CDA II cases, respectively. The cumulated incidence of both types combined varied widely between European regions, with minimal values of 0.08 cases/million in Scandinavia and 2.60 cases/million in Italy. CDA II is more frequent than CDA I, with an overall ratio of approximately 3.2, but the ratio also varied between different regions. The most likely explanations for the differences are both differences in the availability of advanced diagnostic procedures and different levels of the awareness for the diagnosis of the CDAs. The estimations reported here are most probably below the true incidence rates, because of failure to make the correct diagnosis and to underreporting. Limited data do not suggest differing levels of risk in identified ethnic groups.

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