RESUMO
Hematopoietic stem cell transplantation (HSCT) is now widely practiced worldwide. It has the potential to cure many hematological diseases, such as acute leukemia and thalassemia. As an emerging country, Malaysia has made advancements despite many challenges. HSCT has evolved rapidly since the first pediatric allogeneic HSCT case in 1987. The first adult HSCT was performed 5 years later in 1993. Currently, a total of 13 hospitals offer HSCT services throughout Malaysia. These include private healthcare services, substantially funded government hospitals governed by the Ministry of Health, and partially funded teaching hospitals governed by the Ministry of Education. Until 2015, 1,987 allogeneic and 1,648 autologous HSCT procedures were performed. This article narrates the history and development of HSCT in Malaysia and briefly discusses the challenging issues in this area.
RESUMO
In the last decade, chemotherapy in combination with focal therapy (chemoreduction) has been increasingly used in intraocular retinoblastoma to avoid enucleation and radiotherapy. The aim of this study was to assess the feasibility and outcome of chemoreduction in Malaysian children with retinoblastoma. This was a prospective study from August 2001 to January 2006. Twenty children (25 eyes) were given 4 cycles of chemoreduction, after which the response was assessed. Fourteen eyes showed a complete response, 10 eyes showed a partial response, and 1 eye had progressive disease. Twelve eyes developed progressive disease later, 9 after an initial complete response and 3 after a partial response. Overall, progressive disease occurred in 52%. There were 2 treatment failures, in Reese-Elsworth groups 3 and 4. Both eyes required enucleation. One eye in group 5 required second line chemotherapy to achieve a complete response. No eyes were irradiated. Five children (25%) defaulted follow-up, one of whom returned with disseminated disease. In conclusion, 4 cycles of chemoreduction achieved a durable complete response in only 12% of eyes. Chemoreduction is feasible in Malaysia but requires good patient compliance and close follow-up.