Cardiothoracic & vascular anaesthesia
Prognostic Value of Preoperative 2-Dimensional Left Ventricular, Right Ventricular, and Left Atrial Strain in Patients Undergoing Off-Pump Coronary Artery Bypass Grafting: A Prospective Observational Study
Authors' conclusion
Preoperative strain of the left ventricle, right ventricle, and left atrium carries prognostic information for POAF after OPCAB, but only RVFWLS and LA reservoir strain were independent strain predictors after adjustment
Study context
- Population
- Consecutive adults undergoing elective isolated off-pump CABG (OPCAB), tertiary-care university cardiac surgical centre in western India, January 2024-March 2025
- Participants
- 150 consecutive adults
- Exposure
- Postoperative atrial fibrillation (POAF) vs no POAF
- POAFn = 62
- Outcome
- New-onset POAF predicted by preoperative speckle-tracking LV GLS, RVFWLS and left atrial (LA) reservoir strain (PALS)
Methodological detailssingle-centre, prognostic
- Single-centre
- Prognostic
Main finding
As reported in the abstract
New-onset POAF and preoperative strain parameters
- POAF incidence
- 62 of 150 (41.3%)
- Left ventricular (LV) global longitudinal strain (GLS), POAF v non-POAF (less negative with POAF)
- −16.07% v −17.85%
- Right ventricular free-wall longitudinal strain (RVFWLS), POAF v non-POAF (less negative with POAF)
- −21.85% v −24.47%
- PALS, POAF v non-POAF (lower with POAF)
- 32.45% v 38.31%
- LA volume index (LAVI), POAF v non-POAF (larger with POAF)
- 43.71 mL/m² v 33.01 mL/m²
- All between-group differences above
- p < 0.001
- AUC for POAF, LAVI
- 0.867
- AUC for POAF, RVFWLS
- 0.771
- AUC for POAF, LV GLS
- 0.766
- AUC for POAF, PALS
- 0.765
- AUC for POAF, LV ejection fraction (did not discriminate)
- 0.541
- RVFWLS, aOR for POAF (independent predictor)
- 1.436; p = 0.008
- PALS, aOR for POAF per 1% decrement (independent predictor)
- 1.118; p = 0.039
Observational data: associations, not effects.
Further findings
- RVFWLS independently associated with prolonged inotropic support beyond 48 hours
Original publication
Prognostic Value of Preoperative 2-Dimensional Left Ventricular, Right Ventricular, and Left Atrial Strain in Patients Undergoing Off-Pump Coronary Artery Bypass Grafting: A Prospective Observational Study. J Cardiothorac Vasc Anesth. Published 10 September 2026. doi:10.
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