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Annals of Thoracic Surgery 2004-Dec

Recovery of chronic renal impairment with sirolimus after lung transplantation.

Vain rekisteröityneet käyttäjät voivat kääntää artikkeleita
Kirjaudu sisään Rekisteröidy
Linkki tallennetaan leikepöydälle
Federico Venuta
Tiziano De Giacomo
Erino A Rendina
Serena Quattrucci
Edoardo Mercadante
Giuseppe Cimino
Moshen Ibrahim
Daniele Diso
Alessandra Bachetoni
Giorgio F Coloni

Avainsanat

Abstrakti

BACKGROUND

Standard immunosuppression after lung transplantation includes calcineurin inhibitors, azathioprine, and steroids. Calcineurin inhibitor administration is associated with an increased renal impairment. Sirolimus shows no renal toxicity and could be used in selected patients.

METHODS

We have prospectively administered sirolimus as an alternative to calcineurin inhibitors in 15 lung transplantation recipients with persistent drug nephrotoxicity. Eight patients had also bronchiolitis obliterans syndrome. The mean serum creatinine and azotemia were 2.7 +/- 1.1 mg/dL and 111 +/- 39 mg/dL. After starting sirolimus, azathioprine was reduced to 50%-25% of baseline, calcineurin inhibitors were gradually reduced and eventually stopped, and steroids were maintained stable. Patients started sirolimus with 2 to 5 mg/d orally; adjustments were made according to trough levels (4 to 12 ng/mL for combined sirolimus + calcineurin inhibitors; 12 to 20 ng/mL as monotherapy), toxicity, and perceived efficacy. Patients were monitored for renal and graft function and clinical status.

RESULTS

A significant creatinine decrease was observed after 6 months of treatment (p < 0.02); azotemia decreased after 1 month and remained stable (p < 0.01). Pulmonary function tests did not show any significant modification from before sirolimus baseline in patients without bronchiolitis obliterans syndrome. There were eight infectious complications and 10 episodes of toxicity (4 dermatitis, 2 epistaxis, 1 headache, 1 diarrhea, 1 nausea, 1 laryngeal cancer). Moderate leukocytopenia (n = 3) and hypertriglyceridemia (n = 6) responded to dose reduction. One patient was lost to follow-up. Three patients died of complications related to bronchiolitis obliterans. One patient underwent transplantation again.

CONCLUSIONS

Sirolimus administration allows amelioration of renal function with a relatively low morbidity and is useful for chronic renal impairment rescue after lung transplantation.

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