title: Calcineurin-inhibitor-induced pain syndrome after a second allogeneic bone marrow transplantation for a child with aplastic anemia.
abstract: We report a 10-yr-old boy who developed CIPS after a second allogeneic BMT for severe aplastic anemia. He received the second BMT from the same HLA-matched sibling donor 16 months after the first BMT due to secondary graft failure. The preparative regimen for the second BMT consisted of fludarabine, cyclophosphamide, and anti-thymocyte globulin. Prophylaxis for acute GVHD was tacrolimus and oral PSL. Engraftment was achieved on day 15. On day 19, he suddenly complained of intermittent pain in the bilateral lower limbs. Electric shock-like pain continued for a few minutes in succession. This intractable pain was not ameliorated by various analgesic drugs including pentazocine. MRI demonstrated bone marrow edema with high T2 signal intensity in the femur. He was diagnosed as CIPS based on his symptoms and MRI findings. The trough concentration of tacrolimus (10.1 ng/mL) at the onset of CIPS was within the therapeutic range. Bouts of severe pain naturally resolved after day 43 without the discontinuation of tacrolimus. CIPS is a rare complication in HSCT. This is the first non-malignant, and the first pediatric, case who developed CIPS after HSCT.
authors.affiliation: Department of Pediatrics, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan. adu44150@ams.odn.ne.jp
authors.forename: Takuro
authors.initials: T
authors.lastname: Nishikawa
authors.forename: Yasuhiro
authors.initials: Y
authors.lastname: Okamoto
authors.forename: Takayuki
authors.initials: T
authors.lastname: Tanabe
authors.forename: Yuichi
authors.initials: Y
authors.lastname: Shinkoda
authors.forename: Yuichi
authors.initials: Y
authors.lastname: Kodama
authors.forename: Yumiko
authors.initials: Y
authors.lastname: Tsuru
authors.forename: Yoshifumi
authors.initials: Y
authors.lastname: Kawano
mesh_terms: D000328:Adult; D000741:Anemia, Aplastic / Q000628:therapy*; D000961:Antilymphocyte Serum / Q000378:metabolism; D016026:Bone Marrow Transplantation / Q000379:methods*; D065095:Calcineurin Inhibitors; D002648:Child; D003520:Cyclophosphamide / Q000378:metabolism; D004487:Edema; D005260:Female; D006086:Graft vs Host Disease / Q000209:etiology / Q000628:therapy; D006801:Humans; D007166:Immunosuppressive Agents / Q000627:therapeutic use*; D008279:Magnetic Resonance Imaging / Q000379:methods; D008297:Male; D008875:Middle Aged; D010146:Pain / Q000188:drug therapy* / Q000209:etiology*; D016559:Tacrolimus / Q000627:therapeutic use*
chemical_list: D000961:Antilymphocyte Serum; D065095:Calcineurin Inhibitors; D007166:Immunosuppressive Agents; D003520:Cyclophosphamide; D016559:Tacrolimus