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Reduced Complications after Arterial Reconnection in a Rat Model of Orthotopic Liver Transplantation
Published on: November 7, 2020
Cardiovascular and metabolic disease in the liver transplant recipient
Nathan G Kim1, Avneesh Sharma2, Sammy Saab3
1Department of Medicine, University of California at Los Angeles, Los Angeles, CA, USA.
Insights
Liver transplant recipients face increased cardiovascular disease risk due to post-transplant metabolic syndrome, including obesity and diabetes. Managing these metabolic factors is crucial for long-term survival and preventing non-graft-related deaths.
Area of Science:
- Hepatology
- Cardiology
- Transplantation Medicine
Background:
- Liver transplantation significantly improves survival for decompensated liver disease and liver cancer.
- Cardiovascular disease is a primary cause of death in liver transplant recipients, linked to metabolic risk factors.
- Metabolic syndrome, characterized by obesity, hypertension, dyslipidemia, and diabetes, is increasingly prevalent post-transplant.
Purpose of the Study:
- To review the incidence and contributing factors of post-transplant metabolic disease.
- To examine the burden of cardiovascular disease in liver allograft recipients.
- To identify high-risk patient groups and management strategies.
Main Methods:
- Literature review of studies on liver transplantation outcomes.
- Analysis of post-transplant metabolic risk factors and cardiovascular disease prevalence.
- Discussion of patient demographics and disease indications for transplantation.
Main Results:
- Post-transplant metabolic syndrome is rising due to aging recipients, increased general population risk factors, non-alcoholic steatohepatitis, and longer survival.
- Patients with pre-transplant diabetes or obesity are at higher risk for post-transplant metabolic syndrome.
- Aggressive management of metabolic risk factors and potential immunosuppression adjustment are key.
Conclusions:
- Post-transplant metabolic syndrome poses a growing threat to liver allograft recipient morbidity and mortality.
- Close surveillance and proactive medical management of metabolic factors are essential, especially for high-risk patients.
- Immunosuppressive regimen adjustments may mitigate cardiovascular risk but require careful consideration to prevent graft failure.
Abstract:
Liver transplantation has led to great improvements in long-term survival in patients with decompensated liver disease and hepatocellular carcinoma. Cardiovascular disease is the leading cause of non-graft-related deaths and has increased prevalence in liver allograft recipients. This is partly secondary to higher post-transplant rates of metabolic risk factors-notably obesity, hypertension, dyslipidemia, and diabetes mellitus, which comprise metabolic syndrome. Post-transplantation metabolic syndrome is expected to be a growing factor in morbidity and mortality as transplant candidates trend older, the rates of metabolic risk factors in the general population increase, non-alcoholic steatohepatitis grows disproportionally as an indication for transplantation, and post-transplantation survival lengthens. This review discusses the incidence and contributory factors for post-transplant increases in metabolic disease, as well as the burden of cardiovascular disease in the liver allograft recipient. Patients with pre-transplant diabetes or obesity are at particularly high risk for post-transplant metabolic syndrome, and would likely benefit from closer surveillance and more aggressive medical management of risk factors. In metabolic disease resistant to initial medical therapies, tailoring of immunosuppressive regimens may further assist in minimizing long-term cardiovascular disease, although this must be done with caution to avoid worsening the risk of graft failure.
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