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GLP-1 Receptor Agonists Reduce Aortic Dissection and Hypertensive Crisis in Diabetic Patients with Aortic Aneurysm: A
Yung-Fong Tsai1,2, Huan-Tang Lin1,2,3, Yu-Fang Liu4
1Department of Anesthesiology, Chang Gung Memorial Hospital at Linkou, Taoyuan, Taiwan.
Insights
Glucagon-like peptide-1 receptor agonists (GLP-1RAs) may reduce aortic events and mortality in diabetic patients with aortic aneurysms. This study found GLP-1RA therapy linked to lower risks of rupture, dissection, and death compared to other diabetes drugs.
Area of Science:
- Cardiovascular Medicine
- Endocrinology
- Pharmacology
Background:
- Aortic aneurysm rupture and dissection are highly fatal, with limited evidence-based therapies.
- Glucagon-like peptide-1 receptor agonists (GLP-1RAs) show potential for stabilizing vascular inflammation.
- No large-scale studies have assessed GLP-1RAs' impact on acute aortic events in diabetic patients with aortic aneurysms.
Purpose of the Study:
- To evaluate the impact of GLP-1RA therapy on acute aortic events in patients with type 2 diabetes and pre-existing aortic aneurysms.
- To compare the incidence of aortic rupture/dissection, hypertensive crisis, and all-cause mortality between GLP-1RA users and dipeptidyl peptidase-4 inhibitor (DPP-4i) users.
Main Methods:
- Retrospective active-comparator new-user cohort study using TriNetX data (2016-2023) from 152 US healthcare organizations.
- Identified 11,581 adults with type 2 diabetes and non-ruptured aortic aneurysm initiating GLP-1RA (n=5676) or DPP-4i (n=5905).
- Propensity-score matched 3857 patients per group for analysis using Cox proportional hazards models.
Main Results:
- GLP-1RA therapy was associated with a significantly lower risk of aortic rupture/dissection requiring surgical repair (HR 0.75, P=0.013).
- GLP-1RA use was linked to reduced risks of hypertensive crisis (HR 0.77, P=0.022) and all-cause mortality (HR 0.64, P<0.001).
- Numbers needed to treat over 5 years were 60 for aortic events, 81 for hypertensive crisis, and 14 for all-cause mortality.
Conclusions:
- GLP-1RA therapy is associated with a lower incidence of aortic rupture/dissection, hypertensive crisis, and mortality in diabetic patients with aortic aneurysms.
- These findings support the preferential consideration of GLP-1RAs for managing type 2 diabetes in this high-risk population.
- GLP-1RAs may offer a protective effect against severe aortic complications and mortality.
Purpose:
Aortic aneurysm rupture and dissection carry mortality exceeding 50%, yet evidence-based medical therapies for this high-risk population remain limited. Despite mechanistic evidence suggesting glucagon-like peptide-1 receptor agonists (GLP-1RAs) stabilize vascular inflammation, no large-scale study has evaluated their impact on acute aortic events in diabetic patients with pre-existing aortic aneurysm.
Methods:
This retrospective active-comparator new-user cohort study utilized TriNetX data from 152 US healthcare organizations (2016-2023). A total of 11,581 adults with type 2 diabetes and documented non-ruptured aortic aneurysm initiating GLP-1RA (n=5676) or dipeptidyl peptidase-4 inhibitors (DPP-4i; n=5905) were identified. DPP-4i was selected as the active comparator given its documented cardiovascular neutrality, whereas sodium-glucose cotransporter-2 inhibitors were not used as a comparator due to their established cardiovascular benefits. After 1:1 propensity-score matching, 3857 patients per group were analyzed using Cox proportional hazards models.
Results:
GLP-1RA therapy was associated with lower risks of aortic rupture/dissection requiring surgical repair (hazard ratio [HR] 0.75, 95% CI 0.60-0.94; P=0.013), hypertensive crisis (HR 0.77, 95% CI 0.61-0.96; P=0.022), and all-cause mortality (HR 0.64, 95% CI 0.57-0.72; P<0.001). Numbers needed to treat were 60, 81, and 14 over 5 years, respectively.
Conclusion:
In diabetic patients with pre-existing aortic aneurysm, GLP-1RA therapy was associated with lower incidence of aortic rupture/dissection, hypertensive crisis, and mortality compared with DPP-4i, supporting preferential consideration of GLP-1RA in this high-risk population.
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