Progress in transplantation (Aliso Viejo, Calif.) · 2019
Prior Amiodarone Exposure Reduces Tacrolimus Dosing Requirements in Heart Transplant Recipients.
СтатьяНазвание и аннотация: Перевод в очереди
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Breslin Nadine T, Salerno David M, Topkara Veli K, Latif Farhana, Restaino Susan, Takeda Koji, Takayama Hiroo, Farr Maryjane, Colombo Paolo C, Jennings Douglas L
Аннотация
INTRODUCTION: Amiodarone use prior to heart transplant is independently associated with a higher rate of severe primary graft dysfunction and in-hospital mortality. Amiodarone may also alter the pharmacokinetics of medications metabolized via cytochrome P450. No data exist regarding the interaction between pretransplant amiodarone and tacrolimus concentrations.
DESIGN: Single-center retrospective study of transplant patients between January 1, 2014, and June 30, 2016. A therapeutic tacrolimus concentration was defined as a trough level between 8 and 15 ng/mL for 2 consecutive days. The primary outcome was the tacrolimus therapeutic weight-based dosing requirements (mg/kg/day) for patients receiving amiodarone prior to transplant when compared to those without prior receipt of amiodarone. Secondary outcomes include the incidence of cellular rejection and mortality within 6 months posttransplant.
RESULTS: Multi-organ transplant recipients (n = 3), retransplants (n = 9), those who died prior to a therapeutic level (n = 1), and those receiving amiodarone posttransplant (n = 7) were excluded from the analysis. Of the 80 patients included, 34 (42%) received amiodarone prior to transplant. Patient characteristics were similar, with the exception of primary graft dysfunction incidence (38% in amiodarone vs 8.5% in control, P = .001). The median therapeutic dose was 0.1 (interquartile range [IQR]: 0.07-0.12) versus 0.13 (IQR: 0.09-0.17) in the amiodarone and control groups, respectively, ( P < .01). No significant difference in mortality or rejection was noted.
CONCLUSION: Patients receiving amiodarone prior to transplant require a lower weight-based dose of tacrolimus.
DESIGN: Single-center retrospective study of transplant patients between January 1, 2014, and June 30, 2016. A therapeutic tacrolimus concentration was defined as a trough level between 8 and 15 ng/mL for 2 consecutive days. The primary outcome was the tacrolimus therapeutic weight-based dosing requirements (mg/kg/day) for patients receiving amiodarone prior to transplant when compared to those without prior receipt of amiodarone. Secondary outcomes include the incidence of cellular rejection and mortality within 6 months posttransplant.
RESULTS: Multi-organ transplant recipients (n = 3), retransplants (n = 9), those who died prior to a therapeutic level (n = 1), and those receiving amiodarone posttransplant (n = 7) were excluded from the analysis. Of the 80 patients included, 34 (42%) received amiodarone prior to transplant. Patient characteristics were similar, with the exception of primary graft dysfunction incidence (38% in amiodarone vs 8.5% in control, P = .001). The median therapeutic dose was 0.1 (interquartile range [IQR]: 0.07-0.12) versus 0.13 (IQR: 0.09-0.17) in the amiodarone and control groups, respectively, ( P < .01). No significant difference in mortality or rejection was noted.
CONCLUSION: Patients receiving amiodarone prior to transplant require a lower weight-based dose of tacrolimus.