Volume 166, Issue 5 pp. 758-766
Research Paper

Clinical characteristics and treatment outcome in 65 cases with refractory cytopenia of childhood defined according to the WHO 2008 classification

Daisuke Hasegawa

Corresponding Author

Daisuke Hasegawa

Department of Paediatrics, St. Luke's International Hospital, Tokyo, Japan

Correspondence: Daisuke Hasegawa, Department of Paediatrics, St. Luke's International Hospital, 9-1, Akashi-cho, Chuo-ku, Tokyo 104-8560, Japan.

E-mail: [email protected]

Search for more papers by this author
Xiaojuan Chen

Xiaojuan Chen

Department of Paediatrics, St. Luke's International Hospital, Tokyo, Japan

Department of Paediatrics, Institute of Haematology and Blood Disease Hospital, Chinese Academy of Medical Sciences, Tianjin, China

Search for more papers by this author
Shinsuke Hirabayashi

Shinsuke Hirabayashi

Department of Paediatrics, St. Luke's International Hospital, Tokyo, Japan

Division of Paediatric Haematology and Oncology, Department of Paediatrics and Adolescent Medicine, University of Freiburg, Freiburg, Germany

Search for more papers by this author
Yasushi Ishida

Yasushi Ishida

Department of Paediatrics, St. Luke's International Hospital, Tokyo, Japan

Search for more papers by this author
Shizuka Watanabe

Shizuka Watanabe

Department of Paediatrics, St. Luke's International Hospital, Tokyo, Japan

Search for more papers by this author
Yuji Zaike

Yuji Zaike

Clinical Laboratory, Research Hospital, The Institution of Medical Science, The University of Tokyo, Tokyo, Japan

Search for more papers by this author
Masahiro Tsuchida

Masahiro Tsuchida

Paediatric Haematology/Oncology, Ibaraki Children's Hospital, Mito, Japan

Search for more papers by this author
Atsuko Masunaga

Atsuko Masunaga

Department of Surgical Pathology, Showa University Fujigaoka Hospital, Yokohama, Japan

Search for more papers by this author
Ayami Yoshimi

Ayami Yoshimi

Division of Paediatric Haematology and Oncology, Department of Paediatrics and Adolescent Medicine, University of Freiburg, Freiburg, Germany

Search for more papers by this author
Asahito Hama

Asahito Hama

Department of Paediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan

Search for more papers by this author
Seiji Kojima

Seiji Kojima

Department of Paediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan

Search for more papers by this author
Masafumi Ito

Masafumi Ito

Department of Pathology, Japanese Red Cross Nagoya First Hospital, Nagoya, Japan

Search for more papers by this author
Tatsutoshi Nakahata

Tatsutoshi Nakahata

Centre for iPS Cell Research and Application, Kyoto University, Kyoto, Japan

Search for more papers by this author
Atsushi Manabe

Atsushi Manabe

Department of Paediatrics, St. Luke's International Hospital, Tokyo, Japan

Search for more papers by this author
First published: 04 June 2014
Citations: 27

Summary

This study analysed 65 children who were prospectively registered between 1999 and 2008 and fulfilled the World Health Organization 2008 criteria of refractory cytopenia of childhood (RCC). First-line therapy was determined by the treating physicians: 25 patients received immunosuppressive therapy (IST), 12 patients received haematopoietic stem cell transplantation (HSCT) and one patient received intensive chemotherapy. The remaining 27 patients were followed without treatment for more than 2 years (watch and wait; WW). In the WW group, 18 patients had stable disease without further intervention. Thirteen of 29 patients (45%) who ended up receiving IST showed response. The combination of ciclosporin and antithymocyte globulin was not shown to be superior to ciclosporin alone with regard to response rate or survival. Of 28 patients who ended up undergoing HSCT, 17 patients are alive in complete remission, whereas nine patients died mostly due to transplantation-related mortality. The 5-year overall survival for all patients was 82 ± 5%. Eight patients suffered from disease progression. Patients with monosomy 7 or multilineage-dysplasia had a significantly higher incidence of disease progression. This analysis revealed heterogeneity in the clinical course of RCC, varying from those who remained stable for long periods to those who progressed to advanced disease.

The full text of this article hosted at iucr.org is unavailable due to technical difficulties.