Cardiothoracic & vascular anesthesia
Poor Agreement Between Intraoperative Transesophageal Echocardiography and Postoperative Transthoracic Echocardiography for Transmitral Mean Pressure Gradient After Mitral Valve Repair
Authors' conclusion
This study demonstrates that intraoperative post-repair TMPG has poor agreement with immediate postoperative TMPG while showing moderate agreement between preoperative and post-repair gradients.
Study context
- Population
- Adults undergoing mitral valve repair206 in final analysis
- Participants
- 395 adults
- Exposure
- Intraoperative post-repair transesophageal echocardiography (TEE) transmitral mean pressure gradient (TMPG) vs postoperative TMPG on transthoracic echocardiography (TTE) TMPG; preoperative TTE TMPG vs intraoperative TEE TMPG
- Outcome
- Agreement of post-repair intraoperative TEE vs postoperative TTE TMPG
Methodological detailssingle-centre, tertiary academic medical center
- Single-centre
- Tertiary academic medical center
Main finding
As reported in the abstract
- Intraclass correlation coefficient (ICC)
- 0.25 (p = 0.02)
- Spearman correlation
- 0.15 (95% CI, 0.02 to 0.28; p = 0.03)
- Bland-Altman mean difference
- −0.19 (95% CI, −0.38 to 0.00)
- Upper limit of agreement
- 2.5 (95% CI, 2.2 to 2.9)
- Lower limit of agreement
- −2.9 (95% CI, −3.2 to −2.6)
Observational data: associations, not effects.
Further findings
Agreement of preoperative vs post-repair TMPG
- ICC
- 0.79 (p < 0.001)
Agreement of preoperative vs intraoperative pre-repair TMPG
- Spearman correlation
- 0.62 (95% CI, 0.43 to 0.75; p < 0.001)
- Bland-Altman mean difference
- 0.46 (95% CI, 0.23 to 0.68)
- Limits of agreement (as printed, upper and lower)
- −1.32 (95% CI, −1.7 to −0.9) and 2.24 (95% CI, 1.8 to 2.6)
Parts of this Brief are withheld: the automatic checks could not confirm them against the abstract.
Original publication
Poor Agreement Between Intraoperative Transesophageal Echocardiography and Postoperative Transthoracic Echocardiography for Transmitral Mean Pressure Gradient After Mitral Valve Repair. J Cardiothorac Vasc Anesth. Published 29 January 2026. doi:10.
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