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Objectives: This study aimed to evaluate the impact of electronic communication of medication discontinuation from prescribers to pharmacies (CancelRx) on medication safety., Methods: We used electronic health record (EHR) data to identify medications that were e-prescribed from a pilot practice to a health system pharmacy and subsequently discontinued before or after CancelRx implementation (January 16-April 15, 2018 versus 2019). We matched these EHR data to pharmacy management software data to identify medications that were sold to patients in the 6 months after discontinuation. As a surrogate for unintended cancellation, we also identified medications refilled within 120 days of discontinuation. We conducted a medical record review to identify documentation of prescriber intent to discontinue these medications., Results: CancelRx implementation prevented prescriptions from being sold after discontinuation in the EHR (42 of 392 [10.7%] versus 0 of 387 [0.0%], P < 0.0001), but only 15 of 42 (35.7%) had documented intent to discontinue the medication (15 of 392, or 3.8% overall). There was a nonsignificant increase in the proportion of discontinued medications reordered within 120 days (10.0% versus 12.7%, P = 0.23). Medical record review of reordered prescriptions after CancelRx implementation found that 10 of 49 (10 of 387, or 2.6% overall) might have been unintentionally canceled., Conclusions: Implementation of CancelRx eliminated the sale of e-prescribed medications after discontinuation in the EHR but might result in the unintentional cancellation of some prescriptions. Strategies to increase situational awareness of providers and pharmacy staff, including increased visibility of CancelRx, clear distinctions between active and expired prescriptions, and transmission of the reason for discontinuation, might reduce the risk of unintentional cancellations., Competing Interests: The authors disclose no conflict of interest., (Copyright © 2022 Wolters Kluwer Health, Inc. All rights reserved.)

Objectives: Wrong-patient errors are common and have the potential to cause serious harm. The Office of the National Coordinator for Health Information Technology Patient Identification SAFER Guide recommends displaying patient photographs in electronic health record (EHR) systems to facilitate patient identification and reduce wrong-patient errors. A potential barrier to implementation is patient refusal; however, patients' perceptions about having their photograph captured during registration and integrated into the EHR are unknown., Methods: The study was conducted in an emergency department (ED) and primary care outpatient clinic within a large integrated health system in New York City. The study consisted of 2 components: (1) direct observation of the registration process to quantify the frequency of patient refusals and (2) semistructured interviews to elicit patients' feedback on perceived benefits and barriers to integrating their photograph into the EHR., Results: Of 172 registrations where patients were asked to take a photograph for patient identification, 0 refusals were observed (ED, 0 of 87; primary care outpatient clinic, 0 of 85). A convenience sample of 30 patients were interviewed (female, 70%; age ≥55 years, 43%; Hispanic/Latino, 67%; Black, 23%). Perceived benefits of integrating patient photographs into the EHR included improved security (40%), improved patient identification (23%), and ease of registration (17%). A small proportion of patients raised privacy concerns., Conclusions: Patient refusal was not found to be a barrier to implementation of patient photographs in the EHR. Efforts to identify and address other potential barriers would help ensure that the highest proportion of patients has photographs in their medical record., Competing Interests: The authors disclose no conflict of interest., (Copyright © 2022 Wolters Kluwer Health, Inc. All rights reserved.)

Objective: Use of high-dose cyclophosphamide without hematopoietic stem cell transplant to treat severe aplastic anemia (SAA) has been controversial due to concern for increased infectious toxicity as compared with antithymocyte globulin and cyclosporine A. As children often tolerate dose-intensive therapy better than adults, we sought to perform a detailed retrospective analysis of both treatment response and toxicity in 28 patients younger than 22 years of age treated with 29 courses of high-dose cyclophosphamide as the sole form of immunosuppression., Study Design: Children and adolescents with SAA who lacked an human leukocyte antigen-matched sibling donor were treated with cyclophosphamide 50 mg/kg/d for 4 consecutive days then received daily granulocyte colony stimulating factor until neutrophil recovery, transfusion support, and antimicrobial prophylaxis., Results: Overall survival was 85%, with hematologic response of 79% and complete response of 66%. Cumulative incidences of bacterial infection (86%) and fungal infection (62%) were high but deaths due to infection were rare, as were clonal evolution (1/28), clinically relevant paroxysmal nocturnal (1/28), and relapse (2/28)., Conclusions: Response rates and survival following high-dose cyclophosphamide in pediatric patients with SAA exceed those seen in adults and compare favorably to antithymocyte globulin/cyclosporine A with manageable infectious toxicity., Competing Interests: The authors have no conflicts of interest to disclose.

Background: Adenoviral infections cause morbidity and mortality in blood and marrow transplantation and pediatric oncology patients. Cidofovir is active against adenovirus, but must be used judiciously because of its nephrotoxicity and unclear indications. Therefore, before introducing cidofovir use during an adenoviral outbreak, we developed a clinical algorithm to distinguish low risk patients from those who merited cidofovir therapy because of significant adenoviral disease and high risk for death., Objective: This study was conducted to determine whether the algorithm accurately predicted severe adenovirus disease and whether selective cidofovir treatment was beneficial., Study Design: A retrospective analysis of a pediatric oncology/blood and marrow transplantation cohort prealgorithm and postalgorithm implementation was performed., Results: Twenty patients with adenovirus infection were identified (14 high risk and 6 low risk). All low-risk patients cleared their infections without treatment. Before algorithm implementation, all untreated high-risk patients died, 4 out of 5 (80%), from adenoviral infection. In contrast, cidofovir reduced adenovirus-related mortality in the high-risk group postalgorithm implementation (9 patients treated, 1 patient died; RR 0.14, P<0.05) and all treated high-risk patients cleared their virus., Conclusions: The clinical algorithm accurately identified patients at high risk for severe fatal adenoviral disease who would benefit from selective use of cidofovir.

Our goal was to improve the efficiency of chemotherapy administration for pediatric oncology patients. We identified prechemotherapy hydration as the process that most often delayed chemotherapy administration. An aggressive hydration protocol, supported by fluid order sets, was developed for patients receiving planned chemotherapy. The mean interval from admission to achieving adequate hydration status was reduced significantly from 4.9 to 1.4 hours with a minor reduction in the time to initiate chemotherapy from 9.6 to 8.6 hours. Chemotherapy availability became the new rate-limiting process.

Carboplatin is currently recommended to be dosed according to renal function. In adults, dosing by the Calvert formula is based on evidence that carboplatin clearance closely parallels glomerular filtration rate. Several studies have attempted to validate the Calvert formula and its derivations in pediatrics, but no final consensus has been achieved. As a result, different versions of the original formula exist in the pediatric literature. Other factors may also contribute to confusion when applying the formula to young patients, including the manner in which renal function is measured and reported. We describe how misinterpretation of the Calvert formula resulted in carboplatin overdosing in 2 pediatric patients with high-risk neuroblastoma undergoing peripheral blood stem cell transplantation. Measures to avoid such errors have been instituted.

Chronic graft-versus-host disease (cGVHD) is a major barrier to successful allogeneic stem cell transplantation. Pentostatin has been used to treat cGVHD in a small series of pediatric patients. The authors report the results of the first five pediatric patients receiving pentostatin for refractory cGVHD at Johns Hopkins Hospital. In this early experience, the authors saw considerable symptom response in their patients. Every patient in this series demonstrated a significant improvement in skin and oral symptoms. An increased incidence of infection secondary to pentostatin was not observed. No patient was permanently discontinued from pentostatin subsequent to side effects. If these promising results continue, a trial of pentostatin as a first-line therapy for cGVHD should be considered to potentially reduce our dependence on high-dose steroids for its treatment.

Autoimmune diseases are rare in patients with severe combined immunodeficiency (SCID). The authors describe an 11-month-old infant girl with SCID with fatal warm autoimmune hemolytic anemia (AIHA) resulting from IgM autoagglutinins. Serologic evaluation revealed IgM autoantibodies that caused in vitro hemagglutination at 37 degrees C. The patient had clinical evidence of ongoing hemolysis and agglutination despite aggressive treatment. She had three strokes and died 6 weeks after unsuccessful bone marrow transplantation. Autoimmune disease is an unexpected complication of SCID. The presence of warm reactive IgM autoagglutinins in AIHA confers a dismal prognosis.