title: Cytomegalovirus infection and disease after reduced intensity conditioning allogeneic stem cell transplantation: single-centre experience.
abstract: The aim of this study was to analyse the incidence and risk factors for cytomegalovirus infection (CMV-I) and disease (CMV-D) after a reduced intensity conditioning allogeneic hematopoietic stem cell transplantation (alloHSCT-RIC). We included 186 consecutive alloHSCT-RIC adult patients at risk for CMV reactivation (patient and/or donor CMV seropositivity). Conditioning regimen was based on fludarabine plus an alkylating agent. For guiding pre-emptive anti-CMV therapy, Pp65 Antigenemia (pp65Ag) (n=116) or quantitative polymerase chain reaction (quantPCR) (n=70) were used. The 2-year incidence of CMV-I and/or CMV-D was 36% (11% for CMV-D). Of note, 12/14 (86%) episodes of CMV-D in the pp65Ag group had lung involvement compared with only 3/15 (20%) in the quantPCR group (P=0.01). Importantly, the number of patients who developed CMV pneumonia with prior negative screening tests was unusually high (67% overall). Multivariate analysis of risk factors for CMV-D identified two risk factors: (i) steroid therapy for moderate-to-severe graft-vs-host disease (GVHD) (hazard ratio 4.7, P=0.02); and (ii) alternative donors (non-HLA-identical siblings) [hazard ratio 2.7, P=0.002]. Our findings suggest that CMV is still a major concern in alloHSCT-RIC. Variables associated with poor anti-CMV T-cell recovery (that is, GVHD and donor type) are helpful in identifying patients at higher risk for CMV-D in the alloHSCT-RIC setting.
authors: Division of Clinical Hematology, Hospital de la Santa Creu i Sant Pau, Universitat Autónoma de, Barcelona, Barcelona, Spain. jpinana@santpau.cat
authors: J L
authors: JL
authors: Piñana
authors: R
authors: R
authors: Martino
authors: P
authors: P
authors: Barba
authors: N
authors: N
authors: Margall
authors: M C
authors: MC
authors: Roig
authors: D
authors: D
authors: Valcárcel
authors: J
authors: J
authors: Sierra
authors: N
authors: N
authors: Rabella
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000956:Antigens, Viral / Q000097:blood; D000998:Antiviral Agents / Q000627:therapeutic use; D003587:Cytomegalovirus / Q000235:genetics / Q000276:immunology / Q000302:isolation & purification; D003586:Cytomegalovirus Infections / Q000209:etiology / Q000517:prevention & control*; D005260:Female; D018380:Hematopoietic Stem Cell Transplantation / Q000009:adverse effects; D006801:Humans; D008297:Male; D008875:Middle Aged; D009894:Opportunistic Infections / Q000209:etiology / Q000517:prevention & control; D010750:Phosphoproteins / Q000097:blood; D011024:Pneumonia, Viral / Q000209:etiology / Q000517:prevention & control; D012189:Retrospective Studies; D012307:Risk Factors; D019172:Transplantation Conditioning / Q000379:methods*; D014184:Transplantation, Homologous; D014763:Viral Matrix Proteins / Q000097:blood; D055815:Young Adult
chemical_list: D000956:Antigens, Viral; D000998:Antiviral Agents; D010750:Phosphoproteins; D014763:Viral Matrix Proteins; C065418:cytomegalovirus matrix protein 65kDa