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Aneurysm management involves either conservative medical therapy or surgical intervention, depending on the size and symptoms of the aneurysm. Conservative management is generally reserved for smaller, asymptomatic aneurysms, while larger or symptomatic aneurysms often necessitate surgical repair.Conservative Medical TherapyFor small, asymptomatic aneurysms, particularly abdominal aortic aneurysms (AAA) less than 5.5 centimeters in diameter, conservative medical therapy is recommended. This...

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Updated: May 9, 2026

Augmenting Large Language Models via Vector Embeddings to Improve Domain-Specific Responsiveness

Augmenting Large Language Models via Vector Embeddings to Improve Domain-Specific Responsiveness

Published on: December 6, 2024

Leveraging natural language processing software to implement and execute abdominal aortic aneurysm surveillance.

Laura T Boitano¹, Stacy Brown¹, Lisa O'Neil¹

¹UMass Chan Medical School, Worcester, MA.

Journal of Vascular Surgery

|May 7, 2026

Summary

This summary is machine-generated.

This abdominal aortic aneurysm (AAA) surveillance program identified and managed over 500 patients, improving care and generating significant revenue. The program

Keywords:

Abdominal aortic aneurysm Diagnostic screening programs Natural language processing Process assessment (health care)

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Measurement of Pulse Propagation Velocity, Distensibility and Strain in an Abdominal Aortic Aneurysm Mouse Model

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Published on: February 23, 2020

Area of Science:

Vascular Surgery
Health Informatics
Health Services Research

Background:

Long-term follow-up is crucial for patients diagnosed with abdominal aortic aneurysms (AAA).
A health system implemented a dedicated AAA surveillance program in 2021 to enhance patient management.
Evaluating the program's outcomes over nearly five years is essential for understanding its benefits and challenges.

Purpose of the Study:

To assess the nearly five-year outcomes of a health system's abdominal aortic aneurysm (AAA) surveillance program.
To identify the benefits and challenges associated with maintaining a large-scale AAA surveillance initiative.
To evaluate the program's yield in terms of imaging, clinic visits, AAA repairs, and financial contribution.

Main Methods:

Applied a natural language processing (NLP) algorithm to electronic medical record imaging reports to identify patients with AAA.
Implemented prospective review of imaging reports and utilized a nurse-navigator team to ensure adherence to Society for Vascular Surgery surveillance guidelines.
Tracked outcomes including new imaging studies, clinic visits, AAA repairs, and direct contribution margin.

Main Results:

Processed over 7.5 million imaging reports, identifying 16,923 patients with AAA.
Successfully established care for over 500 patients (2.9% newly identified, 16.9% appropriately followed), yielding 1,008 new imaging studies, 1,080 clinic visits, and 47 AAA repairs.
Generated a direct contribution margin of over $3.3 million, with successful expansion to a new hospital yielding additional revenue.

Conclusions:

The AAA surveillance program effectively established care for over 500 patients and improved system-wide monitoring.
The program demonstrated significant clinical activity and financial contribution, validating its value to patients and the health system.
Program adjustments ensured sustainability and scalability, evidenced by successful expansion and leveraging technology for improved long-term patient care.