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Abstract

17-months old infant with Wiskott-Aldrich syndrome was transplanted with genetically two-locus mismatched unrelated cord blood cells under the conditioning regimen of busulfan, cyclophosphamide and anti-thymocyte globulin. GVHD prophylaxis was cyclosporine (CSP) plus short-term methotrexate with prednisolone (1 mg/kg). Acute and chronic GVHD were not observed during the course. About six years later, he suffered from severe cough and dyspnea with no fever, and diagnosed as late onset non-infectious pulmonary complications (LONIPC). We have to be careful for LONIPC after SCT even in the absence of chronic GVHD for younger children because the sign of insidious obstructive pulmonary symptoms is difficult to monitor. To avoid the unexpected LONIPC, introduction of RIC regimen should be considered for younger children, although it has been reported that RIC regimen may increase the risk for GVHD and graft rejection.

Keywords: Non-infectious pulmonary complication; Chronic GVHD; Allogeneic hematopoietic stem cell transplantation