by Allison Ramsey  , Christine Natori  , Kristen Cisneros  , David J. Ross  and Abbas Ardehali

Received: 27 March 2020;  Published: 06 May 2020;  doi: 10.21926/obm.transplant.2002107

Biomarker surveillance after solid organ transplant is an advancing field with promise for further elucidation through high-throughput analyses and “omics” technologies. To date, Gene Expression Profiling (GEP; AlloMapâ) is the only FDA-cleared genomic assay as surveillance for moderate-severe TCMR versus allograft quiescence after heart transplantation. Clinical validity and utility, however, have been recently established after kidney and heart transplantation, for analysis of donor-derived cell-free DNA in the a [...]

by David J. Ross

Received: 27 March 2020;  Published: 31 March 2020;  doi: 10.21926/obm.transplant.2001106

by Adam K. Morrison  , Robert J. Gajarski  , Ashley Hodge  , Sara Fitzgerald-Butt  , Peter Baker  , Patrick M. McConnell  and Deipanjan Nandi

Received: 21 May 2019;  Published: 26 March 2020;  doi: 10.21926/obm.transplant.2001105

Left ventricular noncompaction cardiomyopathy (LVNC) is a rare form of heritable cardiomyopathy with wide genotypic variability, numerous phenotypic variations, and a wide spectrum of clinical disease from asymptomatic to end stage heart failure. Here, we present a case of a 2-year-old boy who presented to their pediatrician with a cough as a first clinical sign of heart failure, rapidly progressing to severe heart failure. He was found to have mixed LVNC with a restrictive phenotype, a rare phenotype of this form [...]

by Victoria Rendell  , Natalie M. Bath  and Todd V. Brennan

Received: 09 May 2019;  Published: 10 March 2020;  doi: 10.21926/obm.transplant.2001104

Brazilian-born British biologist Dr. Peter Medawar played an integral role in developing the concepts of immunologic rejection and tolerance, which led to him receiving the Nobel Prize “for the discovery of acquired immunologic tolerance” and eventually made organ transplantation a reality. However, at the time of his early work in tolerance, a paradox to his theories was brought to his attention; how was pregnancy possible? Pregnancy resembles organ transplantation in that the fetus, possessing paterna [...]

by Amy Spallone  , Udit Dhal  , Laila Woc-Colburn  and Marion Hemmersbach-Miller

Received: 21 October 2019;  Published: 28 February 2020;  doi: 10.21926/obm.transplant.2001103

We report two cases of histoplasmosis in orthotopic liver transplant (OLT) recipients to illustrate the variable presentations, complications encountered during treatment, the spectrum of diagnostic modalities, and case outcomes. Case 1 describes the insidious presentation of presumed gastrointestinal histoplasmosis 12 years after OLT, which was defined by months of intermittent diarrhea and focal colonic disease on colonoscopy. A diagnosis of Histoplasma capsulatum was ultimately made by broad range PCR performed [...]

by Muayad Alali  , Michael Z. David  , Sandra A. Ham  , Danziger-Isakov LA  , Allison H. Bartlett  , Lindsay Petty  and Jennifer C. Pisano

Received: 27 November 2019;  Published: 21 February 2020;  doi: 10.21926/obm.transplant.2001102

Most studies of children with prolonged fever and neutropenia (PFN) have focused on invasive fungal disease (IFD) as the etiology of fever and not on other causes. Data are lacking regarding risk factors and adverse outcomes in pediatric cancer patients with PFN compared with those whose fevers resolve more rapidly. Retrospective medical record review was performed for all cancer patients with febrile neutropenia (FN) in the pediatric oncology unit at University of Chicago Medicine Comer Children’s Hospital f [...]

by Abdul Al-Toma  and Harry R. Koene

Received: 16 December 2019;  Published: 18 February 2020;  doi: 10.21926/obm.transplant.2001101

Refractory celiac disease (RCD) is a rare condition in which a known celiac patient, usually an adult, suffers from persistence or recurrence of gluten-related symptomatology, laboratory abnormalities, and inflammatory enteropathy despite following an optimal dietary therapy with gluten-free diet (GFD). Arbitrarily, a duration of at least 12 months of GFD has been recommended prior to establishing such a diagnosis. Furthermore, exclusion of the other possible causes of non-celiac villous atrophy, particularly enter [...]

by Steven R. Potter

Received: 10 February 2020;  Published: 13 February 2020;  doi: 10.21926/obm.transplant.2001100

by Rene J. Duquesnoy  and Marilyn Marrari

Received: 13 December 2019;  Published: 10 February 2020;  doi: 10.21926/obm.transplant.2001099

Many studies have demonstrated that HLA-DR, HLA-DQ and HLA-DP matching at the eplet level reduces allograft rejection and improves transplant outcome. Such studies have examined the eplet effect for the individual class II loci, but until now little attention has been given to so-called interlocus class II eplets shared between HLA-DR, HLA-DQ and/or HLA-DP alleles. This report summarizes current information about antibody-verified interlocus class II eplets. It describes a structural modeling method to determine po [...]

by Nour Hasan  , Ankita P. Desai  and Jignesh Dalal

Received: 12 November 2019;  Published: 04 February 2020;  doi: 10.21926/obm.transplant.2001098

Invasive fungal disease (IFD) is a significant contributor to morbidity and mortality in pediatric patients undergoing hematopoietic stem cell transplantation (HSCT). Early detection and timely initiation of antifungal therapy is important for improved outcome, but diagnosis remains difficult, especially when relying on conventional microbiology methods such as culture and microscopy. Data on the use of fungal biomarkers for screening and diagnosis of IFD in HSCT pediatric patients are limited, precluding the devel [...]