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Aneurysm I: Introduction01:30

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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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Hepatic impairment, characterized by decreased liver function, does not uniformly mandate adjustments in drug dosage. Whether dosage modifications are necessary depends on various factors related to the drug's metabolism and elimination pathways. If a drug is primarily excreted via the kidneys and bypasses significant hepatic processing, if it undergoes minimal metabolic transformation in the liver, or if it is volatile and primarily expelled through the lungs, dose adjustments may not be...
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Chronic liver disease significantly impacts drug metabolism due to alterations in hepatic blood flow and enzyme accessibility. This disruption affects the body's pharmacokinetics—the movement and processing of drugs within the system. Key enzymes crucial for metabolizing medications become less accessible, changing how drugs are processed and utilized. Furthermore, liver disease influences the synthesis of plasma proteins, such as albumin and globulins, which play critical roles in drug...
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Vigilant monitoring for aneurysm rupture is essential for patients undergoing aortic surgery.Preoperative Nursing ManagementContinuously monitor the patient for manifestations of aneurysm rupture, such as pallor, weakness, tachycardia, hypotension, abdominal, back, groin, or periumbilical pain, changes in consciousness, and a pulsating abdominal mass. Regularly assess the patient's peripheral pulses.Instruct the patient to consume a clear liquid diet the day before surgery and administer...
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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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Related Experiment Video

Updated: Jan 25, 2026

Microsurgical Creation of Giant Bifurcation Aneurysms in Rabbits for the Evaluation of Endovascular Devices
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Giant Hepatic Artery Aneurysm.

Farid Gossili1, Helle D Zacho2,3

  • 1Department of Nuclear Medicine, Aalborg University Hospital, Hobrovej 18-22, DK-9000 Aalborg, Denmark. f.gossili@rn.dk.

Diagnostics (Basel, Switzerland)
|May 16, 2019
PubMed
Summary

A rare, giant hepatic artery aneurysm (HAA) measuring 10.7 cm was incidentally found in a patient undergoing staging for urothelial carcinoma. This asymptomatic finding highlights the utility of advanced imaging in detecting unexpected vascular conditions.

Keywords:
18F-Fludeoxyglucose positron emission tomography/computed tomography (18F-FDG PET/CT)giant hepatic artery aneurysm (HAA)

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Area of Science:

  • Vascular Surgery
  • Radiology
  • Oncology

Background:

  • Hepatic artery aneurysms (HAAs) are uncommon visceral artery aneurysms.
  • Giant HAAs, defined as >5 cm, are exceptionally rare.
  • Visceral artery aneurysms pose risks including rupture and hemorrhage.

Observation:

  • A case report details an asymptomatic giant HAA (10.7 cm diameter).
  • The aneurysm was an incidental finding during 18F-FDG PET/CT imaging.
  • The patient was undergoing pretreatment staging for urothelial carcinoma.

Findings:

  • The 10.7 cm giant hepatic artery aneurysm was detected incidentally.
  • 18F-FDG PET/CT imaging identified the large vascular anomaly.
  • The patient presented with urothelial carcinoma, unrelated to the aneurysm.

Implications:

  • This case underscores the importance of recognizing incidental findings on advanced imaging.
  • Advanced imaging modalities like PET/CT can reveal unexpected pathologies.
  • Early detection of giant HAAs, even when asymptomatic, is crucial for management planning.