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Modified Octopus Technique for Thoracoabdominal Aortic Aneurysm

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Abdominal aortic aneurysms.

Jes Sanddal Lindholt¹

¹Department of Vascular Surgery, Viborg Hospital, Denmark. jes.s.lindholt@viborg.rm.dk

Danish Medical Bulletin

|December 3, 2010

Summary

Screening for abdominal aortic aneurysms (AAA) in men aged 65-73 significantly reduces mortality. This cost-effective method is acceptable and beneficial for early detection and cardiovascular prevention.

Area of Science:

Vascular Surgery
Public Health
Preventive Medicine

Background:

Abdominal aortic aneurysm (AAA) mortality is rising, particularly in older men.
Ruptured AAA has a high fatality rate (80-95%) compared to elective surgery (5-7%).
Screening criteria necessitate trials for early detection and intervention.

Purpose of the Study:

To evaluate the effectiveness and acceptability of AAA screening in men aged 65-73.
To assess the impact of screening on AAA-related mortality and cost-effectiveness.
To identify risk factors and predictive models for AAA progression and repair.

Main Methods:

A randomized hospital-based screening trial involving 12,639 men aged 65-73.
Ultrasound screening with a 77% acceptance rate and 95% acceptance of control scans.

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Long-term follow-up to assess mortality, quality of life, and cost-effectiveness.

Main Results:

Screening reduced AAA-specific mortality by 67% within five years (NNT=352) and 66% after 14 years (NNT=135).
Screening is cost-effective, with a cost per life year gained of 157 euro.
High-risk individuals attended screening more frequently, and 97% of interval cases developed from smaller aneurysms.

Conclusions:

Offering AAA screening to men aged 65-73 is acceptable and aligns with international health criteria.
Screening significantly reduces AAA-related mortality and is cost-effective.
Further research is needed for predictive models of AAA repair and understanding autoimmune reactions.