Key result
The Focused 3D Method accurately identified residual MR mechanisms in two robot-assisted mitral valve repair cases, prompting a second pump run for A1 prolapse in one and avoiding reintervention in the other.
Why the study?
Rapid and accurate intraoperative assessment of residual mitral regurgitation after robot-assisted mitral valve repair is essential, yet identifying its etiology using conventional 2D-TEE can be challenging.
Does the Focused 3D Method on intraoperative transesophageal echocardiography improve the identification of the etiology of residual mitral regurgitation and guide decision-making for a second pump run in patients undergoing robot-assisted mitral valve repair?
Case Report (n=2)
No
Does the Focused 3D Method on intraoperative transesophageal echocardiography improve the identification of the etiology of residual mitral regurgitation and guide decision-making for a second pump run in patients undergoing robot-assisted mitral valve repair?
The Focused 3D Method on intraoperative 3D-TEE enhances spatial and temporal resolution with color Doppler by minimizing the region of interest along the true commissural line, enabling precise identification of residual mitral regurgitation mechanisms to guide decisions regarding a second cardiopulmonary bypass run.
Answers are grounded in this paper and cite their sources.
May guide second pump run decisions in robot-assisted mitral repair; leaves open need for prospective validation beyond case reports.
Background Rapid and accurate intraoperative assessment of residual mitral regurgitation (MR) after robot-assisted mitral valve repair is essential, although identifying its etiology using conventional two-dimensional transesophageal echocardiography (2D-TEE) can be challenging. We report two cases in which the Focused 3D Method facilitated intraoperative assessment of residual MR. Case presentation Two male patients underwent robot-assisted mitral valve repair for severe MR. The Focused 3D Method enabled accurate identification of the location and mechanism of residual MR. In one patient, the findings prompted a second pump run to correct a previously unrecognized A1 prolapse. In the other, the technique demonstrated shallow leaflet coaptation, supporting the decision to avoid reintervention. Both patients had favorable postoperative outcomes. Discussion The Focused 3D Method may improve intraoperative assessment of residual MR and support decision-making regarding the need for a second pump run after mitral valve repair.
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Miyata et al. (2026) conducted a case report in Residual mitral regurgitation after robot-assisted mitral valve repair for severe mitral regurgitation (n=2). Focused 3D Method (targeted minimum-ROI 3D transesophageal echocardiography with color Doppler) vs. Conventional 2D transesophageal echocardiography (2D-TEE) was evaluated on Identification of the location and etiology of residual mitral regurgitation to guide second cardiopulmonary bypass run decision-making. The Focused 3D Method accurately identified residual MR mechanisms in two robot-assisted mitral valve repair cases, prompting a second pump run for A1 prolapse in one and avoiding reintervention in the other.
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