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Articles by D Dragun
Total Records ( 2 ) for D Dragun
  M Duerr , P Glander , F Diekmann , D Dragun , H. H Neumayer and K. Budde

Background and objective: The clinical manifestation of angioedema ranges from minor facial edema up to life-threatening swelling of mouth and throat. Hereditary defects, drugs, and food allergies may play a role in the development of angioedema. We systematically investigated the incidence of angioedema in renal allograft recipients treated with mTOR inhibitors (mTORis).

Design, setting, participants, & measurements: All patients in the authors' electronic database who had received mTORis (n = 309) between 2000 and 2008 were identified. Of these, 137 were additionally treated with angiotensin-converting enzyme inhibitors (ACEis).

Results: Nine patients (6.6%, 3.8 per 100 treatment years) developed angioedema after a mean period of 123 days under combined therapy with mTORi and ACEi. Among the remaining 172 patients on mTORi, including 119 patients treated with angiotensin-receptor blockers, only two developed angioedema (1.2%, 0.5 per 100 treatment years, P = 0.01). In patients receiving mycophenolate and ACEi (n = 462), 10 instances of angioedema were found (2.1%, 0.8 per 100 treatment years, P = 0.004).

Conclusions: This systematic investigation demonstrated a noticeable incidence of 6.6% angioedema under combined therapy with mTORi and ACEi in kidney transplant recipients. Treatment with either ACEi or mTORi alone resulted in a significantly lower incidence of angioedema, suggesting that this combination should be avoided.

  L Schewior , D Dragun , B Rudolph and E. Schaeffner

Antineutrophil cytoplasmic antibodies-associated vasculitis (AAV) is a well-described cause of multiple organ involvement including rapidly progressive pauci-immune crescentic glomerulonephritis. Kidney transplantation (KTx) is considered the treatment of choice in patients with end-stage renal disease (ESRD) due to AAV. Patient and graft survival in AAV after KTx is favourable and comparable with other non-diabetic causes of ESRD. While relapse of AAV is high in dialysis patients (up to 50%), it decreases after KTx (8.6–22.2%). Yet, relapse may occur at any time after KTx and transplant involvement has been documented in at least 25 cases. Therapeutic guidelines for the management of AAV after KTx do not exist and clinical management is a controversial discussion. We present two unusual cases of young males with smouldering AAV who recently underwent KTx at our hospital. Case 1 experienced repeated relapses after KTx and was finally successfully treated with rituximab. Case 2 received rituximab pre-emptively before living kidney donation and remained free of flairs. Prompted by theses two cases, we reviewed the literature focusing on the right point of time for transplantation, risk assessment, role of antineutrophil cytoplasmic antibodies, clinical presentation of flairs and immunosuppression in smouldering Wegener's granulomatosis (WG) and in relapse, including individualized treatment with rituximab.

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