scholarly journals Outcome of patients activating an unrelated donor search: the impact of transplant with reduced intensity conditioning in a large cohort of consecutive high-risk patients

Leukemia ◽  
2012 ◽  
Vol 26 (8) ◽  
pp. 1779-1785 ◽  
Author(s):  
A Rambaldi ◽  
◽  
A Bacigalupo ◽  
R Fanin ◽  
F Ciceri ◽  
...  
PLoS ONE ◽  
2021 ◽  
Vol 16 (11) ◽  
pp. e0257941
Author(s):  
Claudia de Souza Gutierrez ◽  
Katia Bottega ◽  
Stela Maris de Jezus Castro ◽  
Gabriela Leal Gravina ◽  
Eduardo Kohls Toralles ◽  
...  

Background Practical use of risk predictive tools and the assessment of their impact on outcome reduction is still a challenge. This pragmatic study of quality improvement (QI) describes the preoperative adoption of a customised postoperative death probability model (SAMPE model) and the evaluation of the impact of a Postoperative Anaesthetic Care Unit (PACU) pathway on the clinical deterioration of high-risk surgical patients. Methods A prospective cohort of 2,533 surgical patients compared with 2,820 historical controls after the adoption of a quality improvement (QI) intervention. We carried out quick postoperative high-risk pathways at PACU when the probability of postoperative death exceeded 5%. As outcome measures, we used the number of rapid response team (RRT) calls within 7 and 30 postoperative days, in-hospital mortality, and non-planned Intensive Care Unit (ICU) admission. Results Not only did the QI succeed in the implementation of a customised risk stratification model, but it also diminished the postoperative deterioration evaluated by RRT calls on very high-risk patients within 30 postoperative days (from 23% before to 14% after the intervention, p = 0.05). We achieved no survival benefits or reduction of non-planned ICU. The small group of high-risk patients (13% of the total) accounted for the highest proportion of RRT calls and postoperative death. Conclusion Employing a risk predictive tool to guide immediate postoperative care may influence postoperative deterioration. It encouraged the design of pragmatic trials focused on feasible, low-technology, and long-term interventions that can be adapted to diverse health systems, especially those that demand more accurate decision making and ask for full engagement in the control of postoperative morbi-mortality.


2019 ◽  
Vol 19 (5) ◽  
pp. 363-369
Author(s):  
Ashley Albert ◽  
Sophy Mangana ◽  
Mary R. Nittala ◽  
Toms Vengaloor Thomas ◽  
Lacey Weatherall ◽  
...  

2020 ◽  
Vol 58 (6) ◽  
Author(s):  
Antonios Kritikos ◽  
Julien Poissy ◽  
Antony Croxatto ◽  
Pierre-Yves Bochud ◽  
Jean-Luc Pagani ◽  
...  

ABSTRACT The 1,3-beta-d-glucan (BDG) test is used for the diagnosis of invasive candidiasis (IC) in intensive care units (ICUs). However, its utility for patient management is unclear. This study assessed the impact of BDG test results on therapeutic decisions. This was a single-center observational study conducted in an ICU over two 6-month periods. All BDG test requests for the diagnosis of IC were analyzed. Before the second period, the ICU physicians received a pocket card instruction (algorithm) for targeted BDG testing in high-risk patients. The performance of the BDG test for IC diagnosis was assessed, as well as its impact on antifungal (AF) prescription. Overall, 72 patients had ≥1 BDG test, and 14 (19%) patients had an IC diagnosis. The BDG test results influenced therapeutic decisions in 41 (57%) cases. The impact of the BDG test was positive in 30 (73%) of them, as follows: AF abstention/interruption following a negative BDG result (n = 27), and AF initiation/continuation triggered by a positive BDG test result and subsequently confirmed IC (n = 3). In 10 (24%) cases, a positive BDG test result resulted in AF initiation/continuation with no further evidence of IC. A negative BDG result and AF abstention with subsequent IC diagnosis were observed in one case. The positive predictive value (PPV) of BDG was improved if testing was restricted to the algorithm’s indications (80% versus 36%, respectively). However, adherence to the algorithm was low (26%), and no benefit of the intervention was observed. The BDG result had an impact on therapeutic decisions in more than half of the cases, which consisted mainly of safe AF interruption/abstention. Targeted BDG testing in high-risk patients improves PPV but is difficult to achieve in ICU.


2020 ◽  
Vol 4 (4) ◽  
pp. 740-754 ◽  
Author(s):  
Daniel Weisdorf ◽  
Sarah Cooley ◽  
Tao Wang ◽  
Elizabeth Trachtenberg ◽  
Cynthia Vierra-Green ◽  
...  

Abstract Natural killer (NK) cell recognition and killing of target cells are enhanced when inhibitory killer immunoglobulin-like receptors (KIR) are unable to engage their cognate HLA class I ligands. The genes of the KIR locus are organized into either KIR B haplotypes, containing 1 or more activating KIR genes or KIR A haplotypes, which lack those genes. Analysis of unrelated donor (URD) hematopoietic cell transplants (HCT), given to acute myeloid leukemia (AML) patients between 1988 and 2009, showed that KIR B haplotype donors were associated with better outcomes, primarily from relapse protection. Most of these transplants involved marrow grafts, fully myeloablative (MAC) preparative regimens, and significant HLA mismatch. Because the practice of HCT continues to evolve, with increasing use of reduced intensity conditioning (RIC), peripheral blood stem cell grafts, and better HLA match, we evaluated the impact of URD KIR genotype on HCT outcome for AML in the modern era (2010-2016). This analysis combined data from a prospective trial testing URD selection based on KIR genotypes (n = 243) with that from a larger contemporaneous cohort of transplants (n = 2419). We found that KIR B haplotype donors conferred a significantly reduced risk of leukemia relapse and improved disease-free survival after RIC, but not MAC HCT. All genes defining KIR B haplotypes were associated with relapse protection, which was significant only in transplant recipients expressing the C1 epitope of HLA-C. In the context of current HCT practice using RIC, selection of KIR B donors could reduce relapse and improve overall outcome for AML patients receiving an allogeneic HCT.


Blood ◽  
2004 ◽  
Vol 104 (11) ◽  
pp. 1825-1825
Author(s):  
M. Markova ◽  
Juliet N. Barker ◽  
John E. Wagner ◽  
Jeffrey S. Miller ◽  
Mukta Arora ◽  
...  

Abstract Purine analogues have been combined with alkylator/irradiation as immunosuppressive and anti-tumor conditioning prior to allogeneic hematopoietic stem cell transplantation (HCT) though differing purine analogues have not been compared. We prospectively tested Fludarabine (F) 40 mg/m2/d x 5d vs. Cladribine (C) 10 mg/m2/d x 5d plus Busulfan (Bu) (2mg/kg q12h x 2d) and total body irradiation (T) 200cGy followed by cyclosporine and mycophenylate mofetil in 19 recipients of matched sibling peripheral blood stem cell and 13 unrelated donor (URD) marrow HCT. Patients in each randomly assigned cohort [FBuT vs. CbuT] were similar in age (median 52 years in both groups), diagnosis (leukemia/MDS 38 vs. 31%; lymphoid malignancy 57 vs 69%), extensive pre-HCT therapy (56 vs. 63%), high risk disease status (81 vs. 93%) and Karnofsky (median 90 in each)[all p= NS] though fewer FBuT were URD recipients 25% vs. CBuT 56%, p=0.07. Engraftment was prompt in both groups (median 11 vs. 12 days), but the cumulative incidence of neutrophil engraftment was 75% (95% C.I. 54–96%) using CBuT vs. 100% with FBuT (p<0.01) and randomization was halted. Platelet recovery was prompt (median FBuT 18 vs CBuT 24 days) and after FBuT 75% (95% C.I. 49–100) vs. CBuT 69% (43–95) recovered platelets > 50,000/μL by day +180, p=0.19. The cumulative incidence of GVHD after FBuT vs. CbuT was similar (acute grade II/IV 56 vs. 69%, p=0.26) and (chronic 50 vs. 31%, p=0.27). Transplant related mortality at day +180 was also similar [FBuT 25% (4–46) vs. CbuT 38% (14–61), p=0.47]. Survival was equivalent: at 1 year 50% in each group; at 3 years FBuT 25% vs. CBuT 38%, p=0.55. Multivariate analyses adjusted for age, donor type, diagnosis and stage as well as conditioning regimen showed lower relative risk (RR) of engraftment with CBuT (RR 0.6 (95% C.I. 0.2–1.3) p=0.16) and with URD RR 0.4 (0.2–1.0) p=0.04). RR of Platelet recovery was equivalent with FBuT (RR 0.7 (0.3–1.7) p=0.45) but inferior with URD (RR .16 (.05–.5) p<0.01). RR of GHVD II/IV similar with FBuT RR 1.1, p=0.95, but more frequent with URD RR 2.0, p=.2 and high risk status patients (RR 4.5, 1.5–13.5, =<0.01). Prevalence of remission (CR or PR) at 18 months was high and was similar in both groups (FBuT 100% vs CBuT 86%, p=NS). These data suggest that older patients with advanced hematologic malignancies can achieve satisfactory post-transplant outcomes using either of these combination/reduced intensity conditioning regimens. Fludarabine may be superior to cladribine as a component of pre-HCT conditioning with Bu/TBI due to reduced risks of graft failure. Further modifications of the regimen may confirm universal engraftment with even lower peri-transplant morbidity.


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