Cardiothoracic & vascular anesthesia
Left Atrial Strain as a Predictor of Postoperative Atrial Fibrillation After Mitral Valve Replacement for Mitral Stenosis: A Prospective Observational Study
Authors' conclusion
LA strain is the most reliable parameter for predicting new-onset POAF in patients with sinus rhythm.
Study context
- Population
- Patients aged 18 to 50 years undergoing elective mitral valve replacement (MVR) for severe mitral stenosis (MS); measurements by intraoperative TEE after sternotomy, before heparinization for CPB38 analyzed
- Participants
- 40 patients
- Exposure
- Intraoperative left atrial (LA) strain vs conventional echocardiographic predictors
- Normal sinus rhythm (NSR)n = 20
- Atrial fibrillation (AF)n = 18
- Outcome
- New-onset POAF in NSR patients
Methodological detailssingle tertiary care center
- Single tertiary care center
Main finding
As reported in the abstract
- New-onset postoperative atrial fibrillation (POAF) incidence in NSR patients
- 45%
- LA reservoir strain the only significant predictor of POAF (14.8% v 20.7%)
- p < 0.001
- AUC of strain value <16.5% for new-onset POAF
- 0.828
Observational data: associations, not effects.
Secondary outcomes
Preexisting AF
- AUC of LA dimensional parameters, the best indicators of preexisting AF
- ∼0.71
LA/LA/left atrial appendage (LAA) clots
- AUC of left atrial appendage peak flow (LAAPF) velocity, the superior predictor of LA/LAA clots
- 0.953
Parts of this Brief are withheld: the automatic checks could not confirm them against the abstract.
Original publication
Left Atrial Strain as a Predictor of Postoperative Atrial Fibrillation After Mitral Valve Replacement for Mitral Stenosis: A Prospective Observational Study. J Cardiothorac Vasc Anesth. Published 21 January 2026. doi:10.
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