Infectious complications in children and adults with hematological malignancies

2019 ◽  
Vol 50 (3) ◽  
pp. 167-173 ◽  
Author(s):  
Jan Styczyński

AbstractInfections are the main cause of morbidity and mortality in pediatric hematology and oncology (PHO) and hematopoietic cell transplantation (HCT) settings in children and adults. The analysis of incidence and outcome of bacterial, fungal, and viral infections in Polish PHO/ HCT centers was performed over a period of 72 months (2012–2017). The summary of infections in 5628 patients with newly diagnosed malignancy and 971 HCTs is presented in this paper. Additionally, data of 650 pediatric HCTs from 2012 to 2015 were compared with the data of 3200 HCTs in adults. The risk of any infection per patient was higher in HCT vs PHO patients (2062/971 vs 7115/5628; 2.1 vs 1.3; HR=1.7, p<0.0001). The incidence of bacterial infections was 34,2±0,6% in PHO vs 41,5±1,6% in HCT patients, and the outcome was better in PHO patients: 97,9±0,2% vs 91,8±1,0%. The incidence of patients with fungal infection was 8,8±0,4% vs 21,2±1,3%, and the outcome was better in PHO patients: 95,9±0,7% vs 85,8±2,3%. Incidence of viral infections was 5,0±1,0% in PHO setting, including part of previously transplanted patients, and 47,8±2,2% in HCT setting (60,9±2,3% allo-HCT; 5,6±1,3% auto-HCT). In children, the incidence was higher for bacterial (36.0% vs 27.6%), fungal (25.3% vs 6.3%), and viral (56.3% vs 29.3% allo-HCT; 6.6% vs 0.8% auto-HCT) infections than in adults (p<0.0001), and the outcome was better for bacterial (95.5% vs 91.4%), fungal (88.0% vs 74.9%), and viral (98.6% vs 92.3%) infections. In conclusion, the presented large studies have determined the incidence of infectious complications and their outcomes in HCT and PHO centers in Poland.

2020 ◽  
Vol 13 (2) ◽  
pp. 1053-1058
Author(s):  
Madoka Kanda-Kato ◽  
Satoshi Yoshioka ◽  
Takayuki Ishikawa

Patients with advanced-stage mycosis fungoides (MF) and Sézary syndrome (SS) have a poor prognosis. Allogeneic hematopoietic cell transplantation (HCT) is a potentially curative treatment option; however, since most patients with MF/SS are elderly, they often have difficulty in finding HLA-matched donors. In recent years, HCT from HLA-haploidentical donors (haplo-HCT) using posttransplant cyclophosphamide (PTCy) as graft-versus-host disease prophylaxis has been conducted for patients without HLA-matched donors. Infectious complications, particularly cutaneous bacterial infections, are common among patients with MF/SS. The lower incidence of severe infectious complications after haplo-HCT than after an unrelated cord blood transplantation could lead to lower transplant-related mortality. Here, we report on a patient with SS who was treated successfully with haplo-HCT with PTCy. The patient has remained in complete remission for more than 24 months.


Blood ◽  
2019 ◽  
Vol 134 (6) ◽  
pp. 503-514 ◽  
Author(s):  
Rachel A. Bender Ignacio ◽  
Sayan Dasgupta ◽  
Terry Stevens-Ayers ◽  
Tomasz Kula ◽  
Joshua A. Hill ◽  
...  

Abstract Further insight into humoral viral immunity after hematopoietic cell transplantation (HCT) could have potential impact on donor selection or monitoring of patients. Currently, estimation of humoral immune recovery is inferred from lymphocyte counts or immunoglobulin levels and does not address vulnerability to specific viral infections. We interrogated the viral antibody repertoire before and after HCT using a novel serosurvey (VirScan) that detects immunoglobulin G responses to 206 viruses. We performed VirScan on cryopreserved serum from pre-HCT and 30, 100, and 365 days after myeloablative HCT from 37 donor-recipient pairs. We applied ecologic metrics (α- and β-diversity) and evaluated predictors of metrics and changes over time. Donor age and donor/recipient cytomegalovirus (CMV) serostatus and receipt systemic glucocorticoids were most strongly associated with VirScan metrics at day 100. Other clinical characteristics, including pre-HCT treatment and conditioning, did not affect antiviral repertoire metrics. The recipient repertoire was most similar (pairwise β-diversity) to that of donor at day 100, but more similar to pre-HCT self by day 365. Gain or loss of epitopes to common viruses over the year post-HCT differed by donor and recipient pre-HCT serostatus, with highest gains in naive donors to seropositive recipients for several human herpesviruses and adenoviruses. We used VirScan to highlight contributions of donor and recipient to antiviral humoral immunity and evaluate longitudinal changes. This work builds a foundation to test whether such systematic profiling could serve as a biomarker of immune reconstitution, predict clinical events after HCT, or help refine selection of optimal donors.


Blood ◽  
2013 ◽  
Vol 122 (21) ◽  
pp. 2956-2956 ◽  
Author(s):  
Naoko Takaiwa ◽  
Masanori Seki ◽  
Naoki Kurita ◽  
Yasuhisa Yokoyama ◽  
Mamiko Sakata-Yanagimoto ◽  
...  

Abstract Background Central venous catheters are widely used for treatments of hematologic diseases. Conventional central venous catheters (CVC), however, often cause complications such as pneumothorax, hematoma, catheter-related blood stream infection (CR-BSI), and so on. Peripherally inserted central venous Catheters (PICC) are recently expected to reduce these complications. The aim of this study was to compare the frequencies of and risk factors for complications with PICC and CVC in patients with hematologic diseases. Patients and Methods We retrospectively reviewed all 363 patients who had inserted PICC or CVC for treatment of hematologic diseases in January 2011 through July 2013 at the University of Tsukuba Hospital. Overall and device-specific frequencies of infectious and non-infectious complications were evaluated and potential risk factors were captured. Results The PICC group (N = 215) and CVC group (N = 148) were similar in terms of clinical backgrounds, types of complications during catheter insertion, and total time of catheter-inserted periods. The CVC group had significantly higher proportions of patients who received hematopoietic cell transplantation (PICC 17.7% vs. CVC 49.3%, P<0.001). The significant intergroup differences were found in frequencies of CR-BSI (PICC, 1.4/1000 catheter days and CVC, 5.9/1000 catheter days; P<0.001) and local infection at the insertion site (PICC, 0.3/1000 catheter days and CVC, 2.3/1000 catheter days; P=0.002). The cumulative incidence of catheter removal for infective infectious complications was higher in the CVC group than the PICC group (PICC 8.7% vs. CVC 37.3%, P<0.001). Multivariate analysis showed that PICC significantly reduced the incidence of CR-BSI (odds ratio (OR), 0.15; 95% confidence interval (CI), 0.06-0.33; P<0.001). The incidence of CR-BSI was also significant higher in patients who received hematopoietic cell transplantation (OR, 2.4; 95%CI, 1.22-4.69; P=0.01). Phlebitis and deep vein thrombosis was noted in no patient in PICC group and 1 patient in CVC group. Conclusion Our date suggest that PICC is superior to CVC in terms of infectious complications. Low incidence of thrombophlebitis, observed in this study, is a key to a major change of practice from CVC to PICC. Disclosures: No relevant conflicts of interest to declare.


2019 ◽  
Vol 37 (15_suppl) ◽  
pp. 7046-7046
Author(s):  
Eric Jessen Chow ◽  
Kara Cushing-Haugen ◽  
Michael Boeckh ◽  
Paul Carpenter ◽  
Mary Flowers ◽  
...  

7046 Background: Infections are a major complication of hematopoietic cell transplantation (HCT). Few studies have compared the incidence of late infections occurring ≥2y post-HCT to other cancer patients and the general population. Methods: Single center records of ≥2y HCT survivors who were Washington residents treated from 1992-2009 (n = 1,792; median age 46y; 53% allogeneic; 90% hematologic malignancies) were linked to the state’s hospital discharge and death registries. Individuals randomly selected from the state cancer registry (n = 5,455, non-HCT) and driver’s license files (n = 16,340, DOL) who survived ≥2y formed two comparison groups, matched on sex, age, year, and cancer diagnosis (non-HCT group only). Based on hospital and death registry codes, incidence rate ratios (IRR) with confidence intervals (CI) of infections by organism type and organ system were estimated using Poisson regression. Results: With 6y (range 2-20) median follow up, the incidence rate (per 1000 person-y) of all infections was 65 in HCT survivors vs. 40 in the non-HCT group (IRR 1.6, 95% CI 1.3-1.9). In contrast, the DOL group’s infection rate was 7 (HCT vs. DOL IRR 10.0, 95% CI 8.3-12.1). Specifically, bacterial and fungal infections were each 70% more common in HCT vs non-HCT cancer survivors (IRRs 1.7; p < 0.01). Differences in viral infection rates were more modest (IRR 1.4, p = 0.07). Infections attributed to staphylococcus, streptococcus, and non-Candida fungi including Aspergillus were twice as common in the HCT vs. non-HCT cancer survivors (IRRs 2.1-2.3; p < 0.05). IRRs for nervous system, respiratory, and musculoskeletal infections between these 2 groups were 1.9-2.8 (p < 0.05). Among potentially vaccine-preventable organisms, the IRR was 3.2 (95% CI 2.2-4.6). While the absolute incidences decreased with time, the relative risks in almost all categories were even greater when restricted to ≥5y HCT vs. non-HCT cancer survivors. Conclusions: ≥2y HCT survivors had a significantly increased incidence of infections vs. matched non-HCT cancer survivors. Providers caring for long-term HCT survivors should maintain high vigilance for infections in this population and ensure adherence to HCT antimicrobial prophylaxis and vaccination guidelines.


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