Vladimir Marquez

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Graft-versus-host disease (GVHD) is a complication of hematopoietic stem cell transplantation that frequently affects the gastrointestinal (GI) tract. The best biopsy sites to establish the diagnosis have not been clearly established. To determine the best sites for obtaining biopsies in evaluating GI GVHD. All cases of biopsy-proven GI GVHD (GVHD+) were(More)
BACKGROUND The seroprevalences of hepatitis B virus (HBV) and hepatitis C virus (HCV) are 0.4% and 0.8%, respectively, in Canada, but varying rates have been reported in different populations. OBJECTIVES To determine the seroprevalences of HBV and HCV among attendees of an Asian health fair in the Lower Mainland, British Columbia, as well as to correlate(More)
BACKGROUND Chronic renal failure (CRF) is a significant cause of morbidity and mortality in post-liver transplantation (LT) recipients. The risk factors associated with the development of renal dysfunction are not clearly elucidated. OBJECTIVES To examine the risk factors in the development of CRF in these patients. MATERIAL AND METHODS Retrospective(More)
OBJECTIVE To compare the clinical and laboratory features of IgG4-related disease (IgG4-RD) and lymphocyte-variant hypereosinophilic syndrome (L-HES), two rare diseases that often present with lymphadenopathy, gastrointestinal symptoms, eosinophilia, and elevated immunoglobulins/IgE. METHOD Comparative case series of 31 patients with IgG4-RD and 13(More)
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