Prediction of all-cause mortality after liver transplantation using left ventricular systolic and diastolic function...

Area of Science:

• Cardiology
• Hepatology
• Transplantation Medicine

Background:

• Pre-existing cardiac dysfunction is a known risk factor for adverse outcomes following liver transplantation (LT).
• The predictive value of specific left ventricular systolic function (LVSF) and diastolic function (LVDF) parameters for mortality post-LT requires further clarification.

Purpose of the Study:

• To investigate the individual and combined ability of pre-transplant LVSF and LVDF to predict long-term all-cause mortality in liver transplant recipients.

Main Methods:

• Retrospective analysis of clinical and Doppler echocardiographic data from 839 adult liver transplant recipients (2009-2012).
• Evaluation of left ventricular ejection fraction (LVEF) for LVSF and transmitral E/A ratio for LVDF.
• Multivariate Cox analysis was used to identify significant prognosticators of 4-year mortality.

Main Results:

• Reduced LVEF (≤60%) and decreased E/A ratio (<0.9) were independently associated with higher mortality.
• Patients with both reduced LVEF and E/A ratio exhibited significantly poorer survival (79.5%) compared to those with normal function (93.3%).
• Combined assessment of LVSF and LVDF provided a stronger prediction of survival than either parameter alone.

Conclusions:

• Pre-transplant left ventricular systolic and diastolic function are crucial independent predictors of long-term survival after liver transplantation.
• Combining LVSF and LVDF assessments offers superior prognostic accuracy for mortality risk stratification in LT candidates.
• Echocardiographic evaluation of cardiac function should be integral to the pre-transplant assessment for liver transplant recipients.