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Background Transplant infectious diseases (TID) is a growing area of expertise within infectious diseases (ID), but TID training is not standardized. Previous surveys of fellows identified opportunities to improve TID education resources but did not explore didactic, clinical, and nonclinical experiences comprehensively. Methods The American Society of Transplantation ID Community of Practice surveyed adult and pediatric fellows in US-based general ID or dedicated TID training programs to explore their didactic exposure, clinical experiences, and non–direct patient care activities in TID. Results A total of 234 fellows initiated the survey, and 195 (83%) (190 general ID and 19 TID fellows, including 125 adult, 76 pediatric, and 8 combined adult-pediatric fellows) completed the entire survey. More than half of the fellows described receiving no formal curricular content on most foundational topics in transplant medicine. Almost all respondents (>90%) had some inpatient TID experience, but for >60% of fellows this was <12 weeks annually. Clinical exposure varied by fellow and patient type—in an average month rotating on an inpatient TID service, more than half of adult fellows had evaluated ≥10 kidney, liver, or hematopoietic stem cell transplant recipients but <10 heart, lung, pancreas, or intestinal recipients; pediatric fellows saw <10 of all patient types. Nearly half (46%) of general ID fellows had not spent any time in the dedicated TID clinic at their program. Few fellows had participated in protocol development, organ selection meetings, or donor evaluations. Conclusions This survey highlights important gaps in TID training. Given the increasing need for TID specialists, updated curricula and educational resources are needed. [ABSTRACT FROM AUTHOR]

Background Invasive fungal infections (IFI) are life-threatening complications of prolonged neutropenia in hematologic cancer or after hematopoietic stem cell transplantation (HSCT). Guidelines recommend mold prophylaxis (ppx) for patients at high risk of IFI. Patients receiving ppx with new signs of infection are often escalated to Liposomal Amphotericin B (L-AmB) for concerns of breakthrough mold infections. We describe the impact of implementing voriconazole (VZL) ppx in cancer patients. Methods We performed a quasi-experimental study of all adult patients prescribed L-AmB for ≥1 dose in Cancer Center at the University of Maryland Medical Center. VZL ppx was implemented for patients with hematologic cancer with anticipated prolonged neutropenia (≥ 7 days) in 4/2017. HSCT patients routinely received posaconazole ppx for ≥ 1 year during study period. Comparisons were made pre (November 2015–June 2017) and post (July 2017–December 2018) implementation of VZL ppx allowing for 3-month wash-in period. Cancer center-specific L-AmB days of therapy (DOT) per 1,000 patient-days (PD) were compared using segmented regression and Student t -test. Comparison of patient characteristics, mortality, nephrotoxicity and hospital length of stay (LOS) among patients receiving L-AmB in pre vs. post periods was done using Χ 2 and Student t -test. Results There were 87 (24 pre, 63 post) unique patients included in the analysis, translating to a total of 17.6 L-AmB DOT per 1,000 PD for the study period. Mean L-AmB utilization in cancer center was 9.9 and 24.4 DOT per 1,000 PD (P = 0.0037) for pre and post-implementation, respectively. There was an average 16% increase of L-Amb quarterly (P = 0.93). Among patients receiving L-AmB, most had acute myelogenous leukemia (63% vs. 60%) with lung source (71% vs. 73%, P = 0.8). More patients had proven IFI pre-implementation (42% vs. 29%, P = 0.3). Nephrotoxicity (46% vs. 48%, P = 0.9), median LOS (17 vs. 28, P = 0.4) and inpatient mortality (30 % vs. 38%, p = 0.5) all increased without statistical significance. Conclusion After implementation of VZL ppx there was a significant increase in L-AmB use, and associated non-significant increases in LOS, mortality and nephrotoxicity for those receiving L-AmB. Larger, robust longitudinal studies are needed to better understand the implications of VZL ppx on this population. Disclosures All authors: No reported disclosures. [ABSTRACT FROM AUTHOR]