臨牀透析 Vol.30 No.9(6)


特集名 原疾患と合併症に合わせた透析導入と透析維持
題名 血管炎・抗GBM抗体陽性
発刊年月 2014年 08月
著者 要 伸也 杏林大学医学部第一内科
【 要旨 】 透析に至った抗好中球細胞質抗体(ANCA)関連腎炎の患者でも,導入期は腎機能が回復する可能性がある.しかし,3カ月以後は回復の可能性は低くなるため,全身症状がないかぎり,免疫抑制療法は中止する.その後の維持療法は,ANCA陽性であっても感染のリスクを考慮して通常は行われない.透析導入後にも再発はみられる.ANCA上昇または持続陽性の場合が多いため,ANCA値をフォローし,症状発現に十分注意しつつ,早期発見・早期治療に努める.免疫抑制療法による感染のリスクが高く,治療に際しては感染対策を十分行う.一方,抗GBM抗体型RPGNで透析に至った症例では再発はまれであり,数カ月以後の維持療法は通常行われない.
Theme The initiation and maintenance of dialysis in terms of original kidney diseases and complications
Title Vasculitis and anti-GBM disease
Author Shinya Kaname First Department of Internal Medicine (Nephrology and Rheumatology), Kyorin University School of Medicine
[ Summary ] In patients with ANCA-associated vasculitis (AAV) resulting in incident dialysis, renal function may improve through continued immunosuppressive therapy before the initiation of dialysis. However, after 3 months on dialysis, immunosuppressive therapy should be stopped in consideration of the risk of infection unless there are complications due to systemic symptoms such as pulmonary bleeding. Thus, maintenance therapy is not recommended for dialysis patients with AAV even if ANCA titers are positive. However, the possibility of relapse increases in ANCA-positive patients. Thus early diagnosis and treatment are desired. Strict management of infection is necessary in dialysis patients having had relapses and receiving immunosuppressive therapy.
In patients with anti-GBM disease resulting in initiation of dialysis, relapses are rare once anti-GBM antibodies become negative after initial treatment. Thus, after several months of initial therapy, no maintenance therapy is required.
戻る