Journal of Cancer Research and Clinical Oncology

, Volume 140, Issue 3, pp 471–476

Sirolimus, a promising treatment for refractory Kaposiform hemangioendothelioma

  • Li Kai
  • Zuopeng Wang
  • Wei Yao
  • Kuiran Dong
  • Xianmin Xiao
Original Paper

Abstract

Background

Kaposiform hemangioendothelioma (KHE) is a locally aggressive vascular tumor that usually occurs in infants. It is commonly associated with Kasabach–Merritt phenomenon which is directly responsible for the significant morbidity and mortality, including hemodynamic instability, local invasion, and compression of vital structures. Treatment is particularly difficult for those who had no response to conventional therapies. This paper wants to share experience of mTOR inhibitors sirolimus in the treatment of refractory KHE.

Materials and methods

Six cases of refractory KHE were diagnosed and treated in Children’s Hospital of Fudan University from Jan 2010–June 2013; all of them were treated with sirolimus in June 2012 after failing multiple other therapies.

Results

In six patients, gender was equally distributed between male and female patients. The mean age at the time of initial diagnosed as KHE was 3.1 ± 1.8 months. All of them had been pretreated with at least 2 medical therapies. All of them showed significant improvement in clinical status with tolerable side effects. The average time to response was 5.3 ± 1.0 days; the average stabilization time of platelet was 15.1 ± 8.0 days; and the average time for sirolimus treated as single agent was 1.7 ± 0.4 months. No recurrence of their symptoms happened.

Conclusions

Sirolimus appears to be effective and safe in patients with life-threatening KHE and represents a promising tool in treating refractory KHE.

Keywords

Kaposiform hemangioendothelioma Sirolimus Treatment 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2014

Authors and Affiliations

  • Li Kai
    • 1
  • Zuopeng Wang
    • 1
  • Wei Yao
    • 1
  • Kuiran Dong
    • 1
  • Xianmin Xiao
    • 1
  1. 1.Children’s Hospital of Fudan UniversityShanghaiPeople‘s Republic of China

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