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Related Experiment Videos

Selection for screening for familial aortic aneurysms.

J Adamson1, J T Powell, R M Greenhalgh

  • 1Department of Surgery, Charing Cross and Westminster Medical School, London, UK.

The British Journal of Surgery
|September 1, 1992
PubMed
Summary
This summary is machine-generated.

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Family screening for abdominal aortic aneurysm (AAA) can detect asymptomatic cases. Focusing screening on male siblings with a smoking history or those related to younger patients may improve efficiency.

Area of Science:

  • Vascular Surgery
  • Genetics
  • Preventive Medicine

Background:

  • Familial clustering of abdominal aortic aneurysm (AAA) suggests genetic factors and potential benefits of family-based screening.
  • Identifying asymptomatic AAA cases and associated genes can improve patient outcomes.

Purpose of the Study:

  • To evaluate the effectiveness of family-based ultrasonographic screening for abdominal aortic aneurysms (AAA).
  • To identify risk factors and genetic markers associated with AAA in siblings of affected individuals.

Main Methods:

  • Ultrasonographic screening of 28 families, including 25 brothers and 28 sisters.
  • Collection of family history, cholesterol levels, and genetic markers (type III collagen, haptoglobin).
  • Statistical analysis to identify associations between AAA/wide aorta and risk factors like smoking, sex, and proband age.

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Main Results:

  • Six siblings (11%) had AAA (≥3.0 cm), all over 60 years old.
  • Eleven siblings (21%) had a wide aorta (2.5-2.9 cm), six of whom were under 60.
  • AAA or wide aorta was significantly associated with smoking, male sex, and younger proband age (<60 years).
  • Genetic markers for type III collagen and haptoglobin were not informative.

Conclusions:

  • Screening siblings of AAA patients can detect asymptomatic aneurysms.
  • Screening efficiency can be improved by targeting brothers with a smoking history and/or siblings of younger patients.
  • The familial component of AAA appears stronger in younger patients.