Arrhythmias & electrophysiology
Left Atrial Strain to Predict Postoperative Atrial Fibrillation in Patients Undergoing Coronary Artery Bypass Grafting
Main finding · POAFResult — go to the resultHazard ratio 3.6 95% CI 2.2–5.9Authors' conclusion
A presurgery global PALS <28% is a specific parameter to stratify patients at increased risk of POAF after coronary artery bypass graft.
Study context
- Population
- Consecutive patients undergoing isolated CABG
- Participants
- 310 patients
- Exposure
- Global peak atrial longitudinal strain (PALS) <28% vs PALS ≥28%
- Outcome
- POAF
- Follow-up
- Up to discharge
Methodological detailsmulticentre, 3 Italian centres, consecutive patients
- Multicentre
- 3 Italian centres
- Consecutive patients
Main finding
As reported in the abstract
Hazard ratio
3.6
95% CI 2.2–5.9
P < 0.001
By group
PALS <28%vs PALS ≥28%
HR 3.6 (95% CI 2.2–5.9); P < 0.001
- Overall postoperative atrial fibrillation (POAF) incidence: 103 patients
- 33%
- Lower global PALS predicted POAF (AUC)
- 0.74
- POAF incidence PALS <28% vs ≥28%
- P < 0.001
- POAF-free survival PALS <28% vs ≥28%
- P < 0.001
Observational data: associations, not effects.
Further findings
POAF with PALS <28% and age ≥70 years
| Adjusted HR (CI) | P value | ||
|---|---|---|---|
| PALS <28% and age ≥70 years | 11.2 (4.7–26.6) | P < 0.001 | |
| 0.050.21520Adjusted hazard ratio (log scale) |
Original publication
Left Atrial Strain to Predict Postoperative Atrial Fibrillation in Patients Undergoing Coronary Artery Bypass Grafting. Circ Cardiovasc Imaging. Published 16 January 2024. doi:10.
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