Table 3.
Potential risk factors for TA-TMA.
| Inherent/non-modifiable | Transplant-associated | Post-transplant events |
|---|---|---|
| Female sex | HLA-mismatched donor | CNI ± Sirolimus |
| Gene variants | Minor ABO mismatch | Infection (Bacteremia or IFI) |
| African-American race | Use of PBSC | Infection (DS-DNA Virus, e.g., CMV, HHV-6, BK) |
| Severe aplastic anemia | Lack of ATG in conditioning regimen | Acute GVHD |
| CMV seropositive recipient | Myeloablative conditioning | Autoantibody formation (Factor H, others) |
| Prior HCT | Slow metabolism of conditioning agents? |
HLA, human leukocyte antigen; CNI, calcineurin inhibitor; ABO, blood type antigens; IFI, invasive fungal infection; PBSC, peripheral blood stem cells; GVHD, graft-vs. -host disease; CMV, cytomegalovirus; HHV-6, human herpes virus-6; ATG, anti-thymocyte globulin; HCT, hematopoietic cell transplant.