Why the study?
Preoperative planning for degenerative mitral regurgitation repair typically relies on multiple imaging studies, including echocardiography and invasive angiography, prompting interest in multiphase cardiac CT as a comprehensive single-modality alternative.
A standardized electrocardiographically gated, multiphase cardiac CT protocol can consolidate preoperative planning and directly guide repair feasibility, cannulation site, and operative approach in patients undergoing mitral valve repair.
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May support consolidated CT planning in degenerative MR repair; leaves open prospective validation before broader adoption.
BACKGROUND: Degenerative mitral regurgitation (DMR) is the leading cause of primary mitral regurgitation (MR) and is increasingly managed with minimally invasive and robotic-assisted repair. Preoperative planning increasingly relies on computed tomography (CT). CASE SUMMARIES: Here, we describe a case series of 3 patients with severe degenerative mitral regurgitation who underwent mitral valve repair (2 robotic-assisted, 1 conventional) after CT evaluation. CT findings directly influenced repair feasibility, cannulation site, and operative approach. DISCUSSION: Preoperative imaging is essential, but current planning relies on multiple studies, including echocardiography and invasive angiography. Electrocardiographically gated, multiphase cardiac CT offers a comprehensive alternative by simultaneously assessing leaflet morphology, annular calcification, coronary artery course, vascular access, and left atrial appendage thrombus. TAKE-HOME MESSAGE: We show that a standardized CT protocol can consolidate preoperative planning and optimize patient-specific surgical strategies in mitral valve repair.
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Mohama et al. (2026) studied this question.
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