Managing mitral annular calcification—high-end robotic mitral valve repair for experienced surgeons

Q: What is the clinical evidence from this study?

Study design: Editorial. Population: Mitral annular calcification. Intervention: Robotic mitral valve repair with MAC decalcification.

Johannes O. Bonatti; Kei Kobayashi

doi:10.21037/jtd-2026-1326

August 1, 2026Journal of Thoracic DiseaseOpen Access

Managing mitral annular calcification—high-end robotic mitral valve repair for experienced surgeons

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Key result

Robotic mitral valve repair in the setting of mitral annular calcification is a feasible option for carefully selected patients when performed by highly experienced surgical teams.

Key Points

To review the surgical complexity, technical approaches, and clinical outcomes associated with performing robotically assisted mitral valve repair in patients with mitral annular calcification.
Synthesized surgical evidence and published center experiences evaluating robotic mitral valve reconstruction, decalcification techniques, and automated performance metrics.
Analyzed published clinical series ranging from 64 to 217 patients undergoing robotic repair with or without atrioventricular patch reconstruction.
In a benchmark series of 64 patients with mitral annular calcification, 84% had Barlow disease, median cross-clamp time was 122 minutes, conversion to replacement occurred in 2 patients (3.1%), and 30-day mortality was 3.1% with no strokes or pacemaker implantations.
Annular decalcification was identified as the strongest independent predictor of prolonged console time, which correlated with higher transfusion rates, reoperation for bleeding, and longer hospital stays.
Catastrophic complications remain a hazard, with historical series reporting atrioventricular disruption in 5 patients (0.3%), all of whom died during index hospitalization.

Structured PICO

I

Intervention

Robotic mitral valve repair with mitral annular calcification decalcification

Limitations

Outcomes may not be reproducible in lower-volume robotic programs.
The learning curve for robotic MAC surgery is likely substantially steeper than that for standard robotic mitral repair.

Implication

Robotic mitral valve repair with concurrent decalcification of mitral annular calcification is highly complex but feasible in carefully selected patients when performed by extensively experienced surgical teams.

Abstract

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Cite This Study

Bonatti et al. (2026) conducted an editorial in Mitral annular calcification. Robotic mitral valve repair with MAC decalcification was evaluated. Robotic mitral valve repair in the setting of mitral annular calcification is a feasible option for carefully selected patients when performed by highly experienced surgical teams.

synapsesocial.com/papers/6ad115c100741cc3fba7d925 https://doi.org/10.21037/jtd-2026-1326

View Full Paper

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Managing mitral annular calcification—high-end robotic mitral valve repair for experienced surgeons

Key Points

Structured PICO

Limitations

Implication

Abstract

Discussion

Cite This Study

Managing mitral annular calcification—high-end robotic mitral valve repair for experienced surgeons

Key Points

Structured PICO

Limitations

Implication

Abstract

Discussion

Cite This Study

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