Methods
All patients aged below 18 years of age who underwent HSCT in HKCH and
diagnosed to have TA-TMA during the 2-year study period from 1 April
2019 to 31 March 2021 were included. Data on basic demographics,
transplant details, potential risk factors for pathogenesis of TA-TMA,
clinical and laboratory presentations of TA-TMA, subsequent treatment
and outcomes were collected.