Annen, Kyle

ABSTRACT Collection of hematopoietic progenitor cells and mononuclear cells by leukocytapheresis is a critical step of procuring cellular starting materials for future therapeutic use. Leukocytapheresis requires use of anticoagulant to prevent blood clotting in the extracorporeal circuit during collection. A commonly used anticoagulant is Acid Citrate Dextrose Solution A (ACD‐A). ACD‐A primarily prevents blood clotting by reversibly chelating free ionized calcium, which is essential for the clotting cascade. Electrolytes frequently affected by ACD‐A include calcium, magnesium, potassium, phosphate, and bicarbonate. Risks for development of electrolyte derangements include procedure‐related parameters as well as patient comorbidities. Symptoms range from mild paresthesias to life‐threatening cardiac arrhythmias. Recognition of related signs and symptoms is important for prompt intervention with procedure modification and electrolyte replacement to optimize patient safety. This paper will provide an enhanced understanding of the underlying pathophysiology and assist in timely identification and management of electrolyte abnormalities associated with cellular therapy collections.

Context.— Complexity of ordering and transfusing blood is particularly evident in the pediatric population. Simplification, clarification, and standardization of blood orders can decrease complexity and improve patient safety. Objective.— To improve patient safety by optimizing electronic ordering of blood components in pediatrics through a collaborative process improvement initiative. Design.— A multidisciplinary working group, formed as part of a value stream analysis to improve transfusion safety at Children’s Healthcare of Atlanta (Atlanta, Georgia), focused on decreasing variability and providing clarity when ordering, preparing, and transfusing blood using the electronic health record. Through benchmarking with other pediatric institutions and a collaborative design process with multiple local stakeholders, an extensive redesign in the existing orders and order sets occurred. Metrics were collected to determine if a change was an improvement. Results.— Nurse and laboratory informaticists, a pathology informaticist, and a transfusion medicine specialist built the new orders based on the design. The new orders focused on the following changes: standardization, introduction of logic, naming conventions, clarifying definitions, adding calculations, improving transparency of history and laboratory data, removing aliquots, clarifying communication, and implementing additional modules to inform the provider of necessary information about the patient. Metrics included a decrease in the number of orders changed within an hour, decreased calls from the blood bank to the provider to clarify the order, and an absence of overtransfusions and transfusion-related serious safety events for a year following implementation. Conclusions.— This collaborative initiative, using standard process improvement tools, resulted in standardized blood orders improving transfusion safety.

AbstractBackground and ObjectivesConvalescent COVID‐19 plasma (CCP) was developed and used worldwide as a treatment option by supplying passive immunity. Adult studies suggest administering high‐titer CCP early in the disease course of patients who are expected to be antibody‐negative; however, pediatric experience is limited. We created a multi‐institutional registry to characterize pediatric patients (<18 years) who received CCP and to assess the safety of this intervention.MethodsA REDCap survey was distributed. The registry collected de‐identified data including demographic information (age, gender, and underlying conditions), COVID‐19 disease features and concurrent treatments, CCP transfusion and safety events, and therapy response.ResultsNinety‐five children received CCP: 90 inpatients and 5 outpatients, with a median age of 10.2 years (range 0–17.9). They were predominantly Latino/Hispanic and White. The most frequent underlying medical conditions were chronic respiratory disease, immunosuppression, obesity, and genetic syndromes. CCP was primarily given as a treatment (95%) rather than prophylaxis (5%). Median total plasma dose administered and transfusion rates were 5.0 ml/kg and 2.6 ml/kg/h, respectively. The transfusions were well‐tolerated, with 3 in 115 transfusions reporting mild reactions. No serious adverse events were reported. Severity scores decreased significantly 7 days after CCP transfusion or at discharge. Eighty‐five patients (94.4%) survived to hospital discharge. All five outpatients survived to 60 days.ConclusionsCCP was found to be safe and well‐tolerated in children. CCP was frequently given concurrently with other COVID‐19‐directed treatments with improvement in clinical severity scores ≥7 days after CCP, but efficacy could not be evaluated in this study.