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Statin therapy associated with a reduced risk of chronic renal failure after cardiac transplantation
Steven A Lubitz1, Sean Pinney, Juan P Wisnivesky
1Zena and Michael Wiener Cardiovascular Institute, Mount Sinai Medical Center, New York, New York, USA.
Insights
Chronic renal failure (CRF) is common after heart transplants. Pre-existing diabetes increases CRF risk, while good kidney function and statin use reduce it, lowering mortality risk.
Area of Science:
- Nephrology
- Cardiology
- Transplantation Medicine
Background:
- Chronic renal failure (CRF) is a frequent complication post-heart transplantation.
- Risk factors and preventive strategies for CRF in this population require further elucidation.
Purpose of the Study:
- To determine the cumulative incidence of CRF after heart transplantation.
- To identify independent predictors of CRF in heart transplant recipients.
Main Methods:
- Retrospective analysis of 218 heart transplant recipients from August 1986 to January 2003.
- Multivariate Cox modeling was employed to identify significant predictors.
Main Results:
- Cumulative incidence of CRF was 4.5% at 5 years and 19.6% at 10 years.
- Pre-transplant diabetes mellitus significantly increased CRF risk (HR 7.11).
- Pre-transplant creatinine clearance ≥ 60 ml/min/1.73 m² (HR 0.30) and post-transplant statin use (HR 0.25) reduced CRF risk.
- CRF post-transplant was associated with a higher risk of mortality (HR 8.5).
Conclusions:
- CRF is a common and serious complication following cardiac transplantation, linked to increased mortality.
- Statin therapy shows promise in reducing CRF risk, meriting further investigation into its mechanisms.
Background:
Chronic renal failure (CRF) after heart transplantation is common, although risk factors for its development and potential preventive interventions are not well established.
Methods:
In this study we retrospectively assessed the cumulative incidence of CRF and identified independent predictors of CRF in heart transplant recipients between August 1986 and January 2003.
Results:
Among the 218 patients included in the analysis, the cumulative incidence of CRF was 4.5% at 5 years, and 19.6% at 10 years after transplant. Multivariate Cox modeling revealed that diabetes mellitus prior to transplant was associated with an increased risk of CRF (hazards ratio [HR] 7.11, p < 0.01), whereas factors associated with a reduced risk of CRF included a pre-transplant creatinine clearance > or = 60 ml/min/1.73 m2 (HR 0.30, p = 0.01) and treatment with a statin after transplant (HR 0.25, p < 0.01). Patients who developed CRF after transplant were at higher risk of death (HR 8.5, p < 0.01).
Conclusions:
CRF is common after cardiac transplantation and is associated with substantial mortality. The reduced risk of CRF observed with statin therapy warrants prospective study, with particular emphasis on the mechanisms of progression to CRF in this population.
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