Coronary computer tomographic angiography for preoperative risk stratification in patients undergoing liver...

Area of Science:

• Cardiology
• Hepatology
• Radiology

Background:

• Cardiovascular diseases (CVD) are leading causes of mortality post-liver transplantation (LT).
• Accurate pre-transplant cardiovascular risk assessment is crucial for end-stage liver disease (ESLD) patients.
• Non-invasive imaging modalities are needed to evaluate coronary artery disease (CAD) in LT candidates.

Purpose of the Study:

• To evaluate the accuracy of 64-slice coronary computed tomographic angiography (CTA) and coronary calcium scoring (CCS).
• To predict postoperative cardiovascular risk in patients assessed for LT.
• To determine the utility of CTA and CCS in managing pre-LT cardiovascular risk.

Main Methods:

• Single-center observational study including 54 consecutive patients assessed for LT.
• Utilized 64-slice coronary computed tomographic angiography (CTA) and coronary calcium scoring (CCS).
• Patients with high CCS (>300) or significant stenosis (>50%) underwent coronary angiography.

Main Results:

• 24 patients (44%) had high CCS or significant stenosis, with 3 requiring intervention or conservative management for severe LAD stenosis.
• 30 patients with normal CTA findings were listed for LT without further cardiac evaluation.
• No cardiovascular events occurred peri- or postoperatively in the 54 studied patients.

Conclusions:

• CTA combined with CCS is a valuable non-invasive tool for pre-LT assessment of CAD.
• This imaging combination aids in the risk stratification of peri- and postoperative cardiovascular events in LT candidates.
• Non-invasive CTA and CCS can safely guide management decisions for LT recipients.