Coronary disease & ACSCohort study
Coronary artery bypass grafting with or without preoperative physiological stenosis assessment: a SWEDEHEART study
- Registry-based cohort study
- nationwide
- SWEDEHEART registry
- adjusted Cox regression
Authors' conclusion
Preoperative flow assessment was not associated with improved clinical outcomes but with a higher risk for new angiography and new revascularization >2 years after CABG.
Study context
- Population
- Patients with first-time isolated coronary artery bypass grafting (CABG) in Sweden 2013–2020
- Participants
- 18,211 patients
- Exposure
- Preoperative flow assessment vs no flow assessment before CABG
- Flow assessmentn = 2,869
- Outcome
- All-cause mortality, stroke, new MI, new coronary angiography and new revascularization
- Follow-up
- Median 3.6 years (range 0-7.5)
Main finding
As reported in the abstract
Flow assessment vs No flow assessmentAdjusted hazard ratio (95% CI)P value
new angiography >2 years after CABG
1.32(1.08–1.62)
P = 0.008new revascularization >2 years after CABG
1.55(1.18–2.04)
P = 0.002Observational data: associations, not effects.
Further findings
| Outcome | Flow assessment | No flow assessment | P value |
|---|---|---|---|
| Distal anastomoses | 3.0 ± 0.9 | 3.2 ± 1 | P < 0.001 |
Use of flow assessment over time
- Overall with flow assessment
- 15.8%
- 2013
- 7.1%
- 2020
- 21.5%
Original publication
Coronary artery bypass grafting with or without preoperative physiological stenosis assessment: a SWEDEHEART study. Eur Heart J. Published 16 May 2025. doi:10.1093/eurheartj/ehaf327
Summarised from the published abstract; every number is checked against it