Aortic & peripheral vascular disease
Utilization and Outcomes Associated With Intravascular Ultrasound During Abdominal and Thoracic Endovascular Aortic Interventions in the United States in the Contemporary Era (2016–2023)
Main finding · Repeat aortic intervention or deathResult — go to the resultHazard ratio 0.80 95% CI 0.73–0.89Authors' conclusion
IVUS implementation during TEVAR and EVAR was associated with improved early and mid-term outcomes, particularly in certain subsets.
Study context
- Population
- US Medicare patients undergoing thoracic endovascular aneurysm repair (TEVAR) and endovascular aneurysm repair (EVAR), 2016–20239.8% with intravascular ultrasound (IVUS)
- Participants
- 136,540 patients
- Exposure
- IVUS vs no IVUS during TEVAR and EVAR
- IVUSn = 13,364
Methodological detailsinverse probability weighting, Medicare claims data
- Inverse probability weighting
- Medicare claims data
Main finding
Repeat aortic intervention or death · 30 days
Hazard ratio
0.80
95% CI 0.73–0.89
P < 0.001
IVUS vs No IVUS
HR 0.80 (95% CI 0.73–0.89); P < 0.001
As reported in the abstract
Observational data: associations, not effects.
Further findings
| Outcome | HR (95% CI) | P value | |
|---|---|---|---|
| Repeat aortic intervention or death · 6 months · weighted HR, all-comers | 0.93 (0.87–0.99) | P = 0.022 | |
| 0.512Hazard ratio (log scale) |
Primary outcome by subgroup
- Lower risk with IVUS suggested for aneurysm (driven by abdominal segment), malperfusion, thoracoabdominal dissection with malperfusion, thoracoabdominal repair and CKD
IVUS utilization · 2016–2023
- IVUS use increased slightly, driven more by TEVAR than EVAR; higher in academic settings, Medicare–Medicaid dual enrollment, the West, dissections, malperfusion and elective procedures
Parts of this Brief are withheld: the automatic checks could not confirm them against the abstract.
Original publication
Utilization and Outcomes Associated With Intravascular Ultrasound During Abdominal and Thoracic Endovascular Aortic Interventions in the United States in the Contemporary Era (2016–2023). Circ Cardiovasc Interv. Published 27 December 2024. doi:10.
Summarised from the published abstract; every number is checked against it