title: Invasive adenoviral infections in T-cell-depleted allogeneic hematopoietic stem cell transplantation: high mortality in the era of cidofovir.
abstract: BACKGROUND
  Adenovirus (ADV) infection occurs in 5-21% of allogeneic hematopoietic stem cell transplants (HSCT). Symptomatic enteritis and hemorrhagic cystitis may be encountered but are seldom fatal. In contrast, mortality rates of up to 75% are reported for adenoviral pneumonia or hepatitis. Cidofovir is currently being increasingly used for treatment of adenoviral infections after HSCT. The efficacy of cidofovir in patients with invasive adenoviral infection is not established.
  
  
  RESULTS
  We reviewed 687 adult and pediatric patients who received allogeneic HSCT at our institution from 1998 through June 2005. ADV was isolated from 64 (9.3%) patients. Eleven patients received cidofovir for invasive disease occurring at median 39 days (range 3-145) post HSCT. The median age was 40 (range 6-61) years. Seventy-three percent received a T-cell-depleted graft and 18% had grade 3-4 graft-versus-host disease (GVHD) of the gut. Three out of 3 (100%) patients with adenoviral pneumonia died. One patient with hepatitis, cholecysitis, and viremia cleared the infection after 3 months. Two out of 7 (28.6%) patients with hemorrhagic colitis or cystitis died of ADV (1 with extensive GVHD).
  
  
  CONCLUSIONS
  Mortality rates of ADV pneumonitis after allogeneic HSCT remain high in the era of cidofovir. Clinical trials are needed to evaluate management strategies for this life-threatening infection.
authors.affiliation: Department of Medicine, Memorial Sloan-Ketterring Cancer Center, New York, New York 10021, USA.
authors.forename: N
authors.initials: N
authors.lastname: Symeonidis
authors.forename: A
authors.initials: A
authors.lastname: Jakubowski
authors.forename: S
authors.initials: S
authors.lastname: Pierre-Louis
authors.forename: D
authors.initials: D
authors.lastname: Jaffe
authors.forename: E
authors.initials: E
authors.lastname: Pamer
authors.forename: K
authors.initials: K
authors.lastname: Sepkowitz
authors.forename: R J
authors.initials: RJ
authors.lastname: O'Reilly
authors.forename: G A
authors.initials: GA
authors.lastname: Papanicolaou
mesh_terms: D000258:Adenovirus Infections, Human / Q000175:diagnosis / Q000188:drug therapy* / Q000401:mortality; D000328:Adult; D000998:Antiviral Agents / Q000627:therapeutic use*; D002648:Child; D002675:Child, Preschool; D000077404:Cidofovir; D003596:Cytosine / Q000031:analogs & derivatives* / Q000627:therapeutic use; D005260:Female; D018380:Hematopoietic Stem Cell Transplantation / Q000009:adverse effects*; D006801:Humans; D008212:Lymphocyte Depletion; D008297:Male; D008875:Middle Aged; D063065:Organophosphonates / Q000627:therapeutic use*; D016133:Polymerase Chain Reaction; D012189:Retrospective Studies; D013601:T-Lymphocytes / Q000276:immunology*
chemical_list: D000998:Antiviral Agents; D063065:Organophosphonates; D003596:Cytosine; D000077404:Cidofovir