Computed tomography coronary angiography as an alternative to invasive coronary angiography in preoperative evaluation for mitral surgery.

Objective: To assess the effectiveness of noninvasive coronary computed tomography angiography (CTA) as an alternative to traditional invasive coronary angiography (ICA) for preoperative evaluation of low-risk patients with an indication for nonemergent mitral surgery and to assess any difference in adverse outcomes from this strategy.

Methods: This was a retrospective cohort study from a single center with data collected from July 2014 to June 2020 for 1576 patients undergoing mitral valve surgery of all etiologies, excluding patients requiring coronary artery bypass surgery. We performed a 1:2 propensity score matching for patients evaluated with CTA (n = 345) to those evaluated with ICA (n = 602).