Factors Affecting Long-Term Survival in Leukemia Patients Undergoing Transplant
Author Information
Author(s): Koh Hideo, Nakamae Hirohisa, Hagihara Kiyoyuki, Nakane Takahiko, Manabe Masahiro, Hayashi Yoshiki, Nishimoto Mitsutaka, Umemoto Yukari, Nakamae Mika, Hirose Asao, Inoue Eri, Inoue Atsushi, Yoshida Masahiro, Bingo Masato, Okamura Hiroshi, Aimoto Ran, Aimoto Mizuki, Terada Yoshiki, Koh Ki-Ryang, Yamane Takahisa, Ohsawa Masahiko, Hino Masayuki
Primary Institution: Osaka City University, Osaka, Japan
Hypothesis
What factors contribute to long-term survival in leukemia patients not in remission at transplantation?
Conclusion
Graft-versus-leukemia effects possibly mediated by chronic GVHD may have played a crucial role in long-term survival in patients with active leukemia.
Supporting Evidence
- Engraftment was achieved in 79% of patients.
- The five-year leukemia-free survival rate was 17%.
- The five-year overall survival rate was 19%.
- Poor-risk cytogenetics and high blast counts were linked to worse outcomes.
- Patients with chronic GVHD had significantly better survival rates.
Takeaway
This study looked at leukemia patients who didn't get better before a transplant and found that some factors can help them live longer after the procedure.
Methodology
The study analyzed 42 patients who underwent allogeneic hematopoietic cell transplantation between January 1999 and July 2009, focusing on pre- and post-transplant factors affecting survival.
Potential Biases
Selection bias due to the retrospective design may affect the results.
Limitations
The study is limited by its retrospective nature, small sample size, and heterogeneity of the disease and transplant procedures.
Participant Demographics
The participants included 24 males and 18 females, aged 15 to 67 years, with a median age of 39 years.
Statistical Information
P-Value
p = .03, p = .01, p = .02, p < .001, p = .022
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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