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Four-Dimensional Computed Tomography-Guided Valve Sizing for Transcatheter Pulmonary Valve Replacement

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Late tricuspid surgery: predicting outcome with computed tomography.

Daniel T L Chan¹, Wendy W M Lam, Flora H F Tsang

¹Division of Cardiothoracic Surgery, Department of Surgery, TheUniversity of Hong Kong, Queen Mary Hospital, Hong Kong, China. taileung@gmail.com

Asian Cardiovascular & Thoracic Annals

|April 8, 2011

Summary

Computed tomography assessment of right ventricular function can predict surgical outcomes for patients with tricuspid regurgitation after left-sided heart valve surgery. This imaging technique offers valuable prognostic information for guiding treatment decisions.

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Echocardiographic Evaluation of Atrial Communications before Transcatheter Closure

Echocardiographic Evaluation of Atrial Communications before Transcatheter Closure

Published on: February 8, 2022

Area of Science:

Cardiology
Cardiac Surgery
Medical Imaging

Background:

Late tricuspid regurgitation can develop after left-sided heart valve surgery.
Prognostic factors for surgical intervention in these cases are not well-defined.
Right ventricular (RV) function is crucial in tricuspid regurgitation pathophysiology.

Purpose of the Study:

To evaluate the predictive value of RV function, assessed via computed tomography (CT), for surgical outcomes in patients with isolated tricuspid regurgitation.
To identify imaging biomarkers for surgical success in this patient population.

Main Methods:

Prospective enrollment of 24 patients undergoing isolated tricuspid valve repair or replacement (2005-2008).
Preoperative RV assessment using computed tomography.
Primary endpoint: one-year survival with symptomatic improvement (e.g., New York Heart Association functional class).

Main Results:

Significant differences in RV CT parameters (end-systolic volume, indexed end-systolic volume, end-diastolic volume, indexed end-diastolic volume) between patients with and without favorable outcomes.
Twelve patients achieved survival with symptomatic improvement; 12 did not.
Baseline characteristics and surgical details were comparable between outcome groups.

Conclusions:

Right ventricular function, as measured by computed tomography, is a significant predictor of surgical outcomes in patients with isolated late tricuspid regurgitation.
CT-derived RV parameters can aid in risk stratification and surgical planning for tricuspid regurgitation.
This non-invasive imaging modality offers valuable prognostic insights.