30-Second Takeaway
- Bypass after failed endovascular CLTI revascularization improves survival and limb outcomes versus repeat endovascular therapy.
- Medicare’s expanded carotid stenting coverage has not increased transfemoral stenting use, which carries higher long-term stroke risk than TCAR or CEA.
- Ascending aortic events are rare below 5.5 cm, supporting current surgical thresholds but highlighting rising mortality with increasing diameter.
- False lumen occluders and adjunctive embolization promote favorable remodeling in chronic type B dissection without added morbidity.
- Automated volumetric AAA analysis and emerging biological age–genetic risk tools may refine surveillance and rupture-risk assessment.
Week ending January 17, 2026
Revascularization choices, aortic thresholds, and evolving tools in vascular surgery
Bypass after failed endovascular CLTI revascularization improves one-year outcomes
This VQI study included 53,793 CLTI patients undergoing infrainguinal reintervention after prior bypass or endovascular therapy (ET). After prior bypass, propensity-matched outcomes at one year did not differ between repeat bypass and ET for mortality, major amputation, reintervention, or MALE. After prior ET, conversion to bypass reduced one-year mortality (HR 0.82, 95% CI 0.73-0.91) versus repeat ET. Bypass after prior ET also lowered reintervention (HR 0.73, 95% CI 0.63-0.83) and improved MALE/death-free survival (HR 0.91, 95% CI 0.84-0.98). These data support favoring open bypass over repeat ET in suitable CLTI patients after failed prior endovascular therapy.
Expanded Medicare carotid stenting coverage did not boost transfemoral use
Using Truveta EHR data, investigators examined TCAR, CEA, and TFCAS utilization from 2016–2024 around Medicare’s October 2023 policy change. From Q3 2023 to Q4 2024, procedure rates decreased by about 39% for TCAR and 38% for CEA, with minimal, nonsignificant change for TFCAS. Among asymptomatic patients, 8-year freedom from stroke was higher after TCAR or CEA than after TFCAS. Adjusted stroke hazard versus CEA was lower after TCAR (HR 0.83, 95% CI 0.72-0.97) and higher after TFCAS (HR 1.41, 95% CI 1.27-1.56). Despite expanded coverage, TFCAS utilization remained stable, while the procedures with better long-term stroke profiles declined.
VA cohort supports 5.5 cm threshold for ascending aortic aneurysm repair
This VA study followed 764 veterans with ascending thoracic aortic aneurysms ≥4.0 cm under surveillance from 1998–2024. Aortic dissection was rare, occurring in two patients, both with diameters 4.0–4.5 cm. All-cause mortality increased sharply with diameter, reaching 24.6 deaths per 100 person-years for aneurysms ≥5.5 cm. Each 0.5 cm diameter increase independently raised mortality risk (aSHR 1.36, 95% CI 1.14-1.63), even after adjusting for age and comorbidities. Findings support prophylactic repair at ≥5.5 cm while suggesting selective earlier intervention in high-risk patients with smaller aneurysms.
References
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Additional Reads
Optional additional studies from this edition.