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Related Concept Videos

Aneurysm I: Introduction01:30

Aneurysm I: Introduction

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An aortic aneurysm is a localized outpouching or dilation at a weak point in the artery wall. It may involve different parts of the aorta, such as the abdominal aorta, aortic arch, or thoracic aorta.Etiological factorsSeveral disorders are associated with aortic aneurysms.Congenital causes, such as primary connective tissue disorders like Marfan syndrome, impact the integrity and strength of connective tissues, notably affecting the aorta. Marfan syndrome is a genetic disorder that specifically...
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Aneurysm II: Clinical Manifestations and Diagnostic Studies01:21

Aneurysm II: Clinical Manifestations and Diagnostic Studies

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Thoracic, aortic arch and abdominal aneurysms are significant vascular conditions that can present with various clinical manifestations and lead to serious complications. Understanding these manifestations and the appropriate diagnostic studies is essential for effective management and treatment.Thoracic Aortic AneurysmsThoracic aortic aneurysms often remain asymptomatic until they reach a size that impinges on adjacent structures. They typically cause deep, diffuse chest pain that radiates to...
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Aneurysm III: Interprofessional Care01:26

Aneurysm III: Interprofessional Care

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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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Abdominal Aorta01:25

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Once the aorta traverses the diaphragmatic plane at the aortic hiatus, it is known as the abdominal aorta. This anatomical structure is positioned leftward of the spinal column, encased within a cocoon of adipose tissue behind the peritoneal cavity. It terminates at the L4 vertebra, where it splits into the common iliac arteries. Prior to this bifurcation, the abdominal aorta gives rise to several vital branches.
The celiac trunk, a singular artery, divides into the left gastric artery, which...
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Peripheral Arterial Disease II: Clinical Manifestations and Diagnostic Evaluation01:21

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Clinical manifestationsPeripheral Arterial Disease (PAD) manifests through a range of symptoms, from the characteristic intermittent claudication to atypical presentations and severe complications in advanced stages. Intermittent claudication, a hallmark symptom of PAD, presents as exercise-induced muscle pain that typically resolves within minutes of rest. This pain is reproducible and stems from inadequate blood flow, leading to the accumulation of lactic acid produced during anaerobic...
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Related Experiment Video

Updated: Sep 23, 2025

Murine Model of Thoracic Aortic Dissection Induced by Oral β-Aminopropionitrile and Subcutaneous Angiotensin II Infusion
05:31

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Published on: May 16, 2025

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Arterial Aneurysm Localization Is Sex-Dependent.

Daniel Körfer1, Caspar Grond-Ginsbach1, Maani Hakimi2

  • 1Department of Vascular and Endovascular Surgery, Heidelberg University Hospital, 69120 Heidelberg, Germany.

Journal of Clinical Medicine
|May 14, 2022
PubMed
Summary

This study reveals significant sex differences in arterial aneurysm distribution. Men are more prone to abdominal and iliac artery aneurysms, while women show higher rates in the ascending aorta and renal arteries.

Keywords:
aneurysm distributionaortic aneurysmarterial aneurysmgenderscreening

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Area of Science:

  • Vascular Surgery
  • Medical Research
  • Public Health

Background:

  • Arterial aneurysms represent a significant health concern with varying prevalence and distribution patterns.
  • Understanding sex-specific differences in aneurysm development is crucial for targeted prevention and treatment strategies.

Purpose of the Study:

  • To investigate and delineate the sex-dependent distribution patterns of arterial aneurysms.
  • To identify specific arterial sites with differential aneurysm prevalence between men and women.

Main Methods:

  • Retrospective analysis of 2189 patients diagnosed with arterial aneurysms between 2006 and 2016.
  • Exclusion of patients with non-true aneurysms, connective tissue disorders, or vasculitides.
  • Comparison of aneurysm distribution and age at diagnosis between sexes using unpaired t-tests and Fisher’s exact test.

Main Results:

  • Men (85.6%) were more likely to have aneurysms in the abdominal aorta, common iliac, internal iliac, and popliteal arteries.
  • Women (14.4%) exhibited a higher proportion of aneurysms in the ascending aorta, descending aorta, splenic, and renal arteries.
  • No significant sex-based differences were observed in age at disease onset or overall aneurysm distribution.

Conclusions:

  • Distinct sex-specific patterns of arterial aneurysm distribution suggest underlying genetic, pathophysiologic, or ontogenetic factors.
  • The infrarenal segment may act as a natural boundary for aneurysm formation, differing between sexes.
  • Screening protocols for women at risk may require enhancement, potentially including thoracic imaging.