Chronic heart failure in heart transplant recipients: Presenting features and outcome

Area of Science:

• Cardiology
• Transplantation Medicine
• Heart Failure Research

Background:

• Ageing heart grafts often develop coronary lesions and restrictive physiology.
• Chronic heart failure (CHF) is a significant concern in long-term heart transplant recipients.
• Understanding CHF in this population is crucial for improving patient outcomes.

Purpose of the Study:

• To identify the presenting characteristics of chronic heart failure in heart transplant recipients.
• To determine the long-term outcomes for heart transplant recipients who develop chronic heart failure.
• To compare patients with and without heart failure post-transplantation.

Main Methods:

• A cohort study comparing 44 heart transplant recipients with CHF (onset >1 year post-transplant) to 44 controls without CHF.
• Analysis of pre-transplant medical history, including hypertension and diabetes.
• Assessment of acute rejection episodes (grade ≥2R) within 12 months post-transplantation.

Main Results:

• Patients developing CHF had higher rates of pre-transplant hypertension/diabetes and moderate-to-severe acute rejection.
• At diagnosis, 50% had preserved systolic function and 36% had normal/near-normal coronary angiography.
• CHF patients experienced significantly higher rates of ascites (10/44) and end-stage renal failure requiring dialysis (18/44), with 50% mortality within 2 years.

Conclusions:

• Heart failure in heart transplant recipients often presents with preserved systolic function and variable coronary findings.
• Key outcomes include high mortality post-diagnosis, frequent need for renal dialysis, and ascites.
• Early identification and management strategies are vital for this high-risk group.