Faculty Bibliography

The American Society for Apheresis (ASFA) Attending Physician Subcommittee of the Physicians' Committee performed an annual review of articles published in 2024 related to apheresis medicine. The 10 seminal apheresis articles selected by the subcommittee members are summarized in this review. PubMed was used to identify manuscripts published in 2024 in four areas of interest: donor apheresis, therapeutic apheresis, apheresis education, and apheresis for cellular therapy. Only full length, peer-reviewed manuscripts in English with data from human subjects were included. Case reports, review articles, and meta-analyses were excluded. Articles were considered seminal if they met at least one of the following previously established criteria: novel finding(s), practice-altering outcomes, international in scope, randomized-controlled trial, relevant to current clinical practice, and/or provide evidence for category III or IV indications based on the ASFA 9th special issue of the Guidelines on the Use of Therapeutic Apheresis in Clinical Practice-Evidence-Based Approach.

Platelet transfusions are a cornerstone of hemorrhage management in patients with thrombocytopenia or platelet dysfunction, yet their indications and dosing are largely based on expert opinion and low-quality evidence. This review offers a timely and comprehensive analysis of platelet transfusion practices in the United States (U.S.), uniquely integrating clinical evidence, such as the pivotal PLADO trial, with emerging technological advancements. Using a holistic approach, this manuscript addresses not only conventional practices (such as dosing standards and storage methods), but also cutting-edge alternatives like cold-stored and freeze-dried platelets, pathogen reduction technologies, and synthetic platelet substitutes. By juxtaposing U.S. practices with international standards, it highlights inefficiencies in dosing and supply management, proposing actionable solutions like lower-dose transfusions and diversified platelet inventories. Furthermore, the manuscript's exploration of whole blood-derived platelets and the ethical debate surrounding paid donors adds a forward-looking perspective. By examining these innovations alongside strategies to optimize supply, this work aims to provide a comprehensive overview of how transfusion medicine is adapting to meet clinical and logistical demands.

In this first annual review article, the American Society for Apheresis (ASFA) Attending Physician Subcommittee (APSc) of the Physicians' Committee (PC) curated key apheresis literature in 2023 and presented their choices for the 10 most seminal apheresis articles. PubMed and OVID search engines were used to identify manuscripts from four topic areas: donor apheresis, therapeutic apheresis, education, and cellular therapy. To further identify seminal criteria, they had to present at least one of the following: novel findings, practice-altering outcomes, international scope, randomized controlled trial, relevant to current clinical practice, and/or provide evidence for category III or IV indications based on the ASFA ninth special issue of the Guidelines on the Use of Therapeutic Apheresis in Clinical Practice-Evidence-Based Approach. Inclusion criteria included: full-length, peer-reviewed, English language, and human subjects. Case reports, review articles, and meta-analyses were excluded.

BACKGROUND:The COVID-19 pandemic affected healthcare delivery across all specialties including apheresis. To describe the changes in apheresis service practices that occurred during the pandemic, the American Society for Apheresis (ASFA) Apheresis Medicine Attending Physician Subcommittee conducted a survey study. STUDY DESIGN AND METHODS/METHODS:A 32-question survey was designed and distributed to 400 ASFA physician members on September 7, 2022. Attending physicians responded to questions about whether and how apheresis service practices changed during the COVID-19 pandemic compared with the time period prior to the pandemic in terms of: (1) procedure types and volumes, (2) patient consultation workflow, and (3) the use of telemedicine. Descriptive analyses were reported as number and frequency of responses. RESULTS:The survey response rate was 13.8% (55/400). Of these respondents, 96.4% (53/55) were attending physicians. The majority of respondents (42/53, 79.2%) indicated that the types of procedures performed during COVID-19 compared to pre-pandemic did not change. Most frequently for apheresis procedure volume, respondents reported: no change in their monthly inpatient volume (21/47, 44.7%) and a decrease in their monthly outpatient volume (28/46, 60.9%). Prior to COVID-19, 75.0% (30/40) of respondents performed consultations at bedside for inpatients and 67.4% (29/43) performed consultations at bedside for outpatients. Bedside consultations decreased in both settings during the pandemic but were still most frequently performed by attending physicians. At the same time, the use of telemedicine increased for 15.4% of survey respondents during COVID-19. CONCLUSION/CONCLUSIONS:Some, but not all, respondents observed or made changes to their apheresis service during the COVID-19 pandemic. A subset of changes, such as increased utilization of telemedicine, may persist.

OBJECTIVES/OBJECTIVE:This study aimed to showcase how implementing a patient blood management (PBM) program effectively cuts unnecessary red blood cell (RBC) transfusions in a New York City urban community teaching hospital. METHODS:Analyzing seven years from 2013 to 2019, a retrospective review of RBC transfusions was conducted. RESULTS:Following the introduction of PBM, considerable improvements were observed annually. These included a drop in mean pretransfusion hemoglobin levels from 7.26 g/dL (2013) to 6.58 g/dL (2019), a 34% reduction in yearly RBC unit transfusions, and fewer units given to patients with pre-Hgb levels ≥ 7 g/dL (from 1210 units in 2013 to 310 units in 2019). Furthermore, this study noted a decline in two-unit RBC orders when Hgb levels were ≥ 7 g/dL from 65 orders in 2013 to merely 3 in 2019. The estimated total cost savings attributed to the six-year PBM program duration after full implementation in 2014 amounted to USD 2.1 million. CONCLUSIONS:Overall, PBM implementation significantly decreased RBC transfusions and enhanced transfusion practices. The findings emphasize that successful PBM strategies do not always necessitate extensive resources or increased budgets but instead rely on the application of intuitive methods, as evidenced by this study.

BACKGROUND:Patients with sickle cell disease (SCD) frequently undergo prophylactic red blood cell (RBC) exchange transfusion and simple transfusion (RCE/T) to prevent complications of disease, such as stroke. These treatment procedures are performed with a target hemoglobin S (HbS) of ≤30%, or a goal of maintaining an HbS level of <30% immediately prior to the next transfusion. However, there is a lack of evidence-based instructions for how to perform RCE/T in a way that will result in an HbS value <30% between treatments. PRINCIPAL OBJECTIVE/UNASSIGNED:To determine whether targets for post-treatment HbS (post-HbS) or post-treatment HCT (post-HCT) can help to maintain an HbS <30% or <40% between treatments. MATERIALS AND METHODS/METHODS:We performed a retrospective study of patients with SCD treated with RCE/T at Montefiore Medical Center from June 2014 to June 2016. The analysis included patients of all ages, and data including 3 documented parameters for each RCE/T event: post-HbS, post-HCT, and follow-up HbS (F/u-HbS), which is the pre-treatment HbS prior to the next RCE/T. Generalized linear mixed model was used for estimating the association between post-HbS or post-HCT levels and F/u-HbS <30%. RESULTS:Based on our results, targeting post-HbS ≤10% was associated with higher odds of having events of F/u-HbS <30% between monthly treatments. Targeting post-HbS ≤15% was associated with higher odds of events of F/u-HbS < 40%. As compared to post-HCT ≤30%, a post-HCT >30%-36% did not contribute to more F/u-HbS <30% or HbS <40% events. CONCLUSIONS:For patients with SCD undergoing regular RCE/T for stroke prevention, a post-HbS ≤10% can be used as a goal to help maintain an HbS <30% for 1 month, and a post-HbS ≤15% allowed patients to maintain HbS <40%.