scholarly journals 468. Delayed Mortality Among Solid Organ Transplant Recipients Hospitalized for Covid-19: An International Multicenter Study

2021 ◽  
Vol 8 (Supplement_1) ◽  
pp. S336-S337
Author(s):  
Madeleine R Heldman ◽  
Olivia S Kates ◽  
Robert M Rakita ◽  
Erika D Lease ◽  
Ajit P Limaye ◽  
...  
Keyword(s):  
Risk Factors ◽  
Research Study ◽  
Organ Transplant ◽  
Scientific Research ◽  
Solid Organ Transplant ◽  
Solid Organ ◽  
Transplant Recipients ◽  
Material Support ◽  
Study Investigator ◽  
Solid Organ Transplant Recipients

Abstract Background Studies of solid organ transplant recipients (SOTr) hospitalized for Covid-19 have focused on short-term outcomes with approximately 30 days of follow-up time. Intermediate-term mortality and associated risk factors for intermediate-term death have not previously been reported. Methods Using data from a multi-center registry, we assessed mortality by 90 days among SOTr hospitalized for Covid-19 between 3/1/2020 and 12/31/2020. Multivariable Cox-proportional hazard models were used to compare risk factors for mortality by 28 and 90 days. Covariates were selected a priori based on known predictors of death in SOTr hospitalized for Covid-19. All patients were followed for 90 days or were censored at the time of death or last clinical contact, if this occurred prior to day 90 after diagnosis. Results Among SOTr hospitalized for Covid-19, 198/979 (20%) died within 90 days of diagnosis and 37/198 (19%) of deaths occurred between days 29 and 90. Risk factors for mortality by day 90 days included age >65 years (1.8, 95% CI 1.3-2.4, P< 0.001), lung transplant (compared to non-lung) (1.6, 95% CI 1.1-2.4, P=0.02), chronic lung disease (2.2, 95% CI 1.5-3.4, P=0.002) and heart failure (1.9, 95% CI 1.2-2.9), which were similar to risk factors reported for 28-day mortality (Table 1). Diagnosis during the second half of 2020 (6/20-12/31/20) was associated with lower mortality by 28 days (aHR 0.7, 95% CI 0.5-1.0, P=0.03) compared to diagnosis during the early half of 2020 (3/1-6/19/20); however, mortality by 90 days was similar in the late and early time periods (aHR 0.9, 95% CI 0.7-1.2, P=0.54). Obesity and mTOR inhibitor use were also associated with death by 28 but not 90 days. Kaplan-Meier survival curves by time period of diagnosis are shown in Figure 1. Table 1. Multivariable Cox-Proportional Hazard Model for Mortality at 28 and 90-days Among Solid Organ Transplant Recipients Hospitalized for Covid-19 (N=979) Figure 1. Survival among SOT recipients hospitalized for Covid-19 by diagnosis time period Vertical tick marks represent censored cases. Early 2020 refers to cases diagnosed between March 1 and June 19, 2020 and late 2020 refers to cases diagnosed between June 20 and December 31, 2020. Conclusion Approximately 20% of deaths among SOTr hospitalized for Covid-19 occurred between days 29 and 90. Future investigations are required to discern the mechanism(s) for the improvement in early, but not late, mortality among SOTr with Covid-19 during the course of the pandemic. Disclosures Madeleine R. Heldman, MD, Cigna Lifesource (Other Financial or Material Support, Speaking honoraria)Thermo Fisher Scientific (Other Financial or Material Support, Speaking honoraria) Olivia S. Kates, MD, Merk (Scientific Research Study Investigator) Ajit P. Limaye, MD, astellas (Scientific Research Study Investigator)CTI (Scientific Research Study Investigator)GSK (Consultant)Johnson&Johnson (Other Financial or Material Support, Adjudication Committee)merck (Consultant, Grant/Research Support, Scientific Research Study Investigator)moderna (Scientific Research Study Investigator)Novartis (Other Financial or Material Support, DMC member)Novo Nordisk (Consultant)

scholarly journals 276. SARS-CoV-2 Infection in Solid Organ Transplant Candidates and Recipients at Texas Children’s Hospital: A Retrospective Review

2021 ◽  
Vol 8 (Supplement_1) ◽  
pp. S243-S244
Author(s):  
Leanne Petters ◽  
Flor M Munoz ◽  
Claire Bocchini ◽  
Elizabeth A Moulton ◽  
Daniel Ruderfer
Keyword(s):  
Research Study ◽  
Organ Transplant ◽  
Scientific Research ◽  
Solid Organ Transplant ◽  
Solid Organ ◽  
Material Support ◽  
Children's Hospital ◽  
Study Investigator ◽  
Children’S Hospital ◽  
Transplant Candidates

Abstract Background Texas Children’s Hospital (TCH) is the largest pediatric solid organ transplant (SOT) program in the US, performing heart, kidney, liver, and lung transplants. Limited data exists about SARS-CoV-2 infection (COVID-19) in the pediatric SOT populations. We evaluated the impact of COVID-19 in a cohort of PCR positive SOT candidates and recipients. We hypothesized that COVID-19 would more severely impact SOT recipients compared to transplant candidates. Methods Patients with SOT or transplant candidates at TCH with a positive SARS-CoV-2 RT-PCR test since March 1, 2020 to April 12, 2021 were included in the cohort. Retrospective medical record review was performed, and descriptive statistics were used. Results A total of 103 SOT patients were identified, 13 candidates and 90 recipients. Of the SOT candidates, there were 1 heart, 3 kidney, and 9 liver transplant candidates. The SOT recipient cohort included 33 heart, 6 lung, 20 kidney, 33 liver and 2 multi-visceral recipients. A significant difference in age was observed between candidates and recipients with candidates being younger with median age of 4.5 years as opposed to recipient’s median age of 12.8 years (p=0.0003). The majority of patients, 70 of 101 (69%), were symptomatic. Most common symptoms reported were fever in 34/70 (49%), cough in 31/70 (44%), and headache in 19/70 (27%). A higher percentage of candidates (31%, 4 of 13) were hospitalized for acute COVID-19 infection compared to (17%, 15 of 90) of recipients. A transplant candidate who ultimately died from underlying illness and COVID-19 was the only patient in the cohort who required mechanical ventilation. More deaths (2/13, 15%) occurred in transplant candidates with COVID-19 compared to transplant recipients with COVID-19 (1/90, 1%, p=0.04); however, 2 of the deaths occurred after recovery from acute COVID-19 illness. Conclusion Our study suggests that pediatric candidates who are actively listed for transplant with underlying conditions have more severe acute COVID-19 illness than pediatric SOT recipients despite their immunosuppression based on the higher mortality observed in the transplant candidates. Prospective studies are needed to better understand which specific patients are at increased risk for mortality from COVID-19. Disclosures Leanne Petters, MSN, APRN, CPNP-AC, Pfizer (Scientific Research Study Investigator) Flor M. Munoz, MD, Biocryst (Scientific Research Study Investigator)Gilead (Scientific Research Study Investigator)Meissa (Other Financial or Material Support, DSMB)Moderna (Scientific Research Study Investigator, Other Financial or Material Support, DSMB)Pfizer (Scientific Research Study Investigator, Other Financial or Material Support, DSMB)Virometix (Other Financial or Material Support, DSMB) Elizabeth A. Moulton, MD, PhD, Pfizer (Scientific Research Study Investigator)

scholarly journals Incidence and Risk Factors of Obesity in Childhood Solid-Organ Transplant Recipients

2019 ◽  
Vol Publish Ahead of Print ◽  
Author(s):  
Bianca C. Bondi ◽  
Tonny M. Banh ◽  
Jovanka Vasilevska-Ristovska ◽  
Aliya Szpindel ◽  
Rahul Chanchlani ◽  
...  
Keyword(s):  
Risk Factors ◽  
Organ Transplant ◽  
Solid Organ Transplant ◽  
Solid Organ ◽  
Transplant Recipients ◽  
Organ Transplant Recipients ◽  
Solid Organ Transplant Recipients

scholarly journals Hepatitis E Virus Infection Among Solid Organ Transplant Recipients at a North American Transplant Center

2016 ◽  
Vol 3 (1) ◽  
Author(s):  
Paul K. Sue ◽  
Nora Pisanic ◽  
Christopher D. Heaney ◽  
Michael Forman ◽  
Alexandra Valsamakis ◽  
...  
Keyword(s):  
Risk Factors ◽  
North America ◽  
Hepatitis E Virus ◽  
Organ Transplant ◽  
Hepatitis E ◽  
Solid Organ Transplant ◽  
Solid Organ ◽  
Transplant Recipients ◽  
Factors Associated ◽  
Solid Organ Transplant Recipients

Abstract Background.  Autochthonous hepatitis E virus (HEV) infection has been reported in over 200 solid organ transplant (SOT) recipients since 2006, yet little is known about the burden of HEV among SOT recipients in North America. We performed a retrospective, cross-sectional study to investigate the prevalence and risk factors associated with HEV infection among SOT recipients at our institution. Methods.  Children and adults (n = 311) who received allografts between 1988 and 2012 at the Johns Hopkins Hospital were assessed for evidence of HEV infection by testing posttransplantation serum samples for HEV antibody by enzyme immunoassay and HEV RNA by reverse transcription quantitative polymerase chain reaction. Individuals with evidence of posttransplant HEV infection (presence of anti-HEV immunoglobulin [Ig]M antibody, anti-HEV IgG seroconversion, or HEV RNA) were compared with individuals without evidence of infection and assessed for risk factors associated with infection. Results.  Twelve individuals (4%) developed posttransplant HEV infection. Posttransplant HEV infection was associated with an increased risk for graft rejection (odds ratio, 14.2; P = .03). No individuals developed chronic infection. Conclusions.  Solid organ transplant recipients in the United States are at risk for posttransplant HEV infection. Further studies are needed to characterize environmental risk factors and the risk of HEV infection after SOT in North America.

scholarly journals 568. Comparison of Humoral Immune Response to the SARS-CoV-2 BNT162b2 Vaccine Between Solid Organ Transplant Recipients and Healthy Controls

2021 ◽  
Vol 8 (Supplement_1) ◽  
pp. S386-S386
Author(s):  
Ahmad Yanis ◽  
Zaid Haddadin ◽  
Andrew Speaker ◽  
Danya Waqfi ◽  
Rana Talj ◽  
...  
Keyword(s):  
Organ Transplant ◽  
Vaccine Dose ◽  
Solid Organ Transplant ◽  
Solid Organ ◽  
Healthy Controls ◽  
Transplant Recipients ◽  
Research Support ◽  
Material Support ◽  
Organ Transplant Recipients ◽  
Solid Organ Transplant Recipients

Abstract Background Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is associated with increased morbidity and mortality in immunocompromised individuals, including solid organ transplant recipients (SOTR). Despite being excluded from phase 1-3 SARS-CoV-2 vaccine clinical trials, SOTR were identified as high-risk populations and prioritized for vaccination in public health guidelines. We aimed to evaluate the antibody response to two doses of the BNT162b2 (Pfizer-BioNTech) vaccine in SOTR as compared to healthy controls (HC). Methods SOTR and HC scheduled to receive two doses of BNT162b2 vaccine and able to complete required follow-up visits were enrolled. Blood specimens were collected from participants before receiving the first and second doses and 21-42 days after the second dose. Enzyme-linked immunosorbent assay (ELISA) was used to detect immunoglobulin G (IgG) to the SARS-CoV-2 spike receptor-binding domain (RBD). Generalized estimating equations with a working independence correlation structure were used to compare anti-RBD IgG levels between SOTR and HC at each study visit and within each group over time. All models were adjusted for age, sex, and pre-vaccination seroreactivity in the ELISA. Results A total of 54 SOTR and 26 HC were enrolled, with mean (SD) ages of 72 (3.6) and 62 (6.7) years, 61% and 35% were male, and 91% and 88% were white, respectively. The most common organ transplant types were kidney (41%) and liver (37%). All SOTR were receiving calcineurin inhibitors. The median time post-transplantation was 7 years. SOTR had markedly lower mean anti-RBD IgG levels when compared to HC with adjusted mean differences of -0.76 (95%CI: [-1.04, -0.47]; p < 0.001) ELISA units (EU) and -1.35 (95%CI [-1.68, -1.01]; p < 0.001) EU after the first and second doses, respectively (Figure 1). Both groups had a significant increase in anti-SARS-CoV-2 IgG levels after the second dose. However, the magnitude was lower in SOTR, 0.49 (95%CI [0.31, 0.69]; p < 0.001) EU than in HCs, 1.08 (95% CI [0.91, 1.24]; p < 0.001) EU. Figure 1. Anti-SARS-CoV-2 RBD IgG levels in solid organ transplant recipients and healthy controls before receiving the BNT162b2 vaccine (baseline), post-vaccine dose 1, and post-vaccine dose 2. Conclusion Our study showed SOTR mounted weaker humoral immune responses than HC to SARS-CoV-2 vaccines. Given a lower response, SOTR should continue to practice social distancing and masking until data on vaccine efficacy are available in this vulnerable population. Disclosures Natasha B. Halasa, MD, MPH, Genentech (Other Financial or Material Support, I receive an honorarium for lectures - it's a education grant, supported by genetech)Quidel (Grant/Research Support, Other Financial or Material Support, Donation of supplies/kits)Sanofi (Grant/Research Support, Other Financial or Material Support, HAI/NAI testing) Natasha B. Halasa, MD, MPH, Genentech (Individual(s) Involved: Self): I receive an honorarium for lectures - it's a education grant, supported by genetech, Other Financial or Material Support, Other Financial or Material Support; Sanofi (Individual(s) Involved: Self): Grant/Research Support, Research Grant or Support

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