Cardiothoracic & vascular anesthesia
Intraoperative Augmented Rotation and Circumferential Strain Compensate for Reduction of Left Ventricular Longitudinal Function After On-Pump Coronary Artery Bypass Grafting (CABG) Surgery
Authors' conclusion
Reduction of longitudinal function after on-pump CABG was compensated intraoperatively by improvement of GCS and rotation in the authors' group of patients.
Study context
- Population
- Patients scheduled for isolated on-pump CABG with uneventful intraoperative course, preserved left ventricular (LV) and RV function, sinus rhythm
- Participants
- 30 patients
- Exposure
- LV strain and rotation before CPB vs after CPB vs after sternal closure
- Outcome
- Intraoperative changes of LV contractile pattern (TEE strain analysis)
Methodological detailssingle-centre
- Single-centre
Main finding
As reported in the abstract
- Global radial strain (GRS) remained unchanged (T1 v T2)
- No significant differences in conventional echocardiographic parameters
- Strain analysis feasible in all included patients at T2
- T2 vs T1: P = 0.007
- T2 vs T1: P < 0.001
- T2 vs T1: P < 0.001
- T2 vs T1: P = 0.02
- T2 vs T1: P < 0.001
Observational data: associations, not effects.
Further findings
Global longitudinal strain (GLS), global circumferential strain (GCS), GRS, apical rotation (aRot), basal rotation (bRot), twist, 2D and 3D LV ejection fraction (EF) (T2 v T3) · before and after sternal closure
- No significant changes
Original publication
Intraoperative Augmented Rotation and Circumferential Strain Compensate for Reduction of Left Ventricular Longitudinal Function After On-Pump CABG Surgery. J Cardiothorac Vasc Anesth. Published 11 June 2023. doi:10.
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