RESUMO
【Objective】 To investigate the correlation between early immune reconstitution and clinical outcomes in patients with acute lymphoblastic leukemia (ALL) underwent allogeneic hematopoietic stem cell transplantation (allo-HSCT). 【Methods】 The basic information and treatment data of 99 patients with ALL undering allo-HSCT from December 2018 to February 2022 were collected. The proportions of CD3+ T, CD3+CD4+ T, CD3+CD8+ T and CD3-CD16+CD56+ NK cells were detected before and 30, 60 and 90 days after transplantation using flow cytometry. The correlation between early cellular immune reconstitution and neutrophil engraftment, platelet engraftment, infection, and acute and chronic graft-versus-host disease (GVHD) was analyzed. 【Results】 Among 99 ALL patients, the median time of neutrophil engraftment was day +11 (range, 8-28), and the median time of platelet engraftment was day +14 (range, 10-120). The cumulative incidence of blood stream infection (BSI) was 11.10% and the cumulative incidence of CMV within 100 days of transplantation was 40.40%. The cumulative incidence of EBV within 100 days was 7.10%. The cumulative incidence of acute graft-versus-host disease (aGVHD) was 22.30%. The cumulative incidence of chronic graft-versus-host disease (cGVHD) within 1 year of transplantation was 16.20%. 1 -year cumulative relapse rate was 13.84%. The 1 -year cumulative disease-free survival (DFS) for all patients was 80.60% and the 1-year overall survival (OS) was 90.30%. The CD4+/CD8+ ratio was positively associated with the development of aGVHD at 30 days post-transplant (OR 1.21, 95CI 1.01-1.45, P<0.05). The proportion of CD16+ CD56+ NK cell were higher in the group without BSI than that in the BSI group before and 30 days after transplantation (P < 0.05). The proportion of CD4+ T-cell were lower in the CMV infection group than that in the group without CMV infection at 60 and 90 days post-transplant(P<0.05). The higher level of CD4+ T-cells at 60 days post-transplant was a protective factor for CMV infection within 100 days (HR 0.91, 95CI 0.84-0.99, P<0.05). 【Conclusion】 Early immune reconstitution after allo-HSCT in patients with ALL is associated with aGVHD, CMV and BSI.
RESUMO
Objective: To investigate the nutritional status of children acute lymphoblastic leukemia (ALL) during induced remission stage. The effects of the disease itself, treatment, and complications of malnutrition were all analyzed. Methods: From the medical re-cords of children with ALL in the pediatric hematological department of the Affiliated Hospital of Guizhou Medical University, we col-lected basic information of the children; monitored the height and weight of the children on the first, 15th, and 33rd days of induced remission treatment; and calculated their body mass index (BMI), as well as results of laboratory tests such as serum albumin and se-rum prealbumin. SPSS 23.0 software was used for data analysis. Results: In 40 children with ALL, there were 16 cases of malnutrition on the first day of induced remission treatment accounting for 40%, 14 cases on both the 15th day and the 33rd day of treatment ac-counting for 35%. Among children with malnutrition, 4 cases of moderate to severe malnutrition occurred on the first day of treat-ment accounting for 25.0%, 9 cases on the 15th day accounting for 64.3%, and 12 cases on the 33rd day accounting for 85.7%. Com-pared with day 1 and day 33, the difference was statistically significant (P<0.017). In the induced remission period, the BMI on the first day was (15.98±2.17) kg/m2; on the 15th day, it was (15.65±2.20) kg/m2; and on the 33rd day, it was (15.66±1.92) kg/m2. The differ-ence between the three was not statistically significant (P=0.730). In the single-factor analysis of factors related to the nutritional sta-tus of children, infection, digestive system involvement, and serum albumin levels were related to the occurrence of malnutrition, and we performed multifactor analysis of these three factors. The difference between the level of infection and serum albumin and the oc-currence of malnutrition was statistically significant (P<0.05). Conclusions: During the induced remission, the malnutrition degree of some children with ALL was aggravated. Infection was a high-risk factor for malnutrition in children with ALL. The decrease in serum al-bumin level may indicate the occurrence of malnutrition. Dynamic monitoring of nutritional status in children with ALL is necessary.