Abstract
Purpose of Review
In this review, we aim to outline the criteria regarding the evaluation of patients with chronic renal disease (CKD) awaiting heart transplantation and discuss the outcomes of combined heart/kidney transplantation. Herein, we also review pathophysiology and risk factors that predispose to chronic kidney disease (CKD) and acute kidney injury (AKI) in patients with HF and after OHT.
Recent Findings
In patients with end-stage systolic heart failure (HF) and an estimated glomerular filtration rate (eGFR) < 30 mL/min/1.73 m2, orthotopic heart transplantation (OHT) alone is a relative contraindication, with a consensus that these patients are better served with heart-kidney transplant (HKT). However, there is significant variation between institutions regarding timing and indication for heart/kidney transplantation, with little data available to predict post-transplant outcomes. A Scientific Statement from American Heart Association was published detailing the indications, evaluation, and outcomes for Heart-Kidney Transplantation, and noted a steady rise in the incidence of heart/kidney dual organ transplants. Recently, the Organ Procurement and Transplantation Network (OPTN) Multi-Organ Transplantation Committee implemented a safety net policy for heart transplant recipients who do need meet criteria for simultaneous heart-kidney transplant in 2023 but with a likely need for sequential kidney transplantation.
Summary
Optimization of organ distribution and patient outcomes after cardiac transplantation requires appropriate recipient selection. This review also outlines the criteria regarding the evaluation of patients with CKD awaiting heart transplantation and outcomes of combined HKT.
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Abbreviations
- HF:
-
Heart failure
- OHT:
-
Orthotopic heart transplant
- HKT:
-
Heart kidney transplant
- CKD:
-
Chronic kidney disease
- eGFR:
-
Estimated glomerular filtration rate
- mGFR:
-
Measured glomerular filtration rate
- AKI:
-
Acute kidney injury
- SRTR:
-
Scientific Registry of Transplant Recipients
- HTN:
-
Hypertension
- DM:
-
Diabetes mellitus
- VA-ECMO:
-
Veno-arterial extracorporeal membrane oxygenation
- CNI:
-
Calcineurin inhibitor
- MDRD:
-
Modification of Diet in Renal Disease Study Equation
- CKD-EPI:
-
Chronic Kidney Disease Epidemiology Collaboration
- UPCR:
-
Urine protein to creatinine ratio
- TA:
-
Tubular atrophy
- IF:
-
Interstitial fibrosis
- ESRD:
-
End-stage renal disease
- LV:
-
Left ventricle
- LKT:
-
Liver kidney transplant
- VAD:
-
Ventricular assist device
- RRT:
-
Renal replacement therapy
- CS:
-
Cardiogenic shock
- MCA:
-
Mechanical circulatory support
- OPTN:
-
Organ Procurement and Transplant Network
- UNOS:
-
United Network for Organ Sharing
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AB, IR, and PP wrote the manuscript text and YB prepared all figures. All authors reviewed the manuscript with editing and additions to the manuscript as needed.
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Anju Bhardwaj reports Impulse Dynamics—Subject Eligibility Committee for AIMHIGHER trial. Ajith Nair reports speaker honoraria from Janssen Pharmaceutical and Impulse Dynamics. The other authors declare that they have no conflict of interest.
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Bhardwaj, A., Pirlamarla, P., Brailovsky, Y. et al. Combined Heart Kidney Transplantation Versus Heart Transplant in Patients with Renal Failure: Contemporary Insights and Future Perspectives. Curr Cardiol Rep 26, 83–90 (2024). https://doi.org/10.1007/s11886-023-02017-y
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DOI: https://doi.org/10.1007/s11886-023-02017-y