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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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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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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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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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IntroductionAortic regurgitation is characterized by the backward flow of blood from the aorta into the left ventricle during diastole and arises from the improper closure of the aortic valve. This condition results in left ventricular volume overload and can stem from both acute and chronic etiologies, each contributing uniquely to the disease's progression and symptomatology.Acute and Chronic CausesAcute aortic regurgitation often results from events that suddenly impair the integrity of the...
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Risk of Rupture After Intracranial Aneurysm Growth.

Laura T van der Kamp1, Gabriel J E Rinkel1, Dagmar Verbaan2

  • 1Department of Neurology and Neurosurgery, University Medical Center Utrecht Brain Center, Utrecht University, University Medical Center Utrecht, Utrecht, the Netherlands.

JAMA Neurology
|August 30, 2021
PubMed
Summary
This summary is machine-generated.

The absolute risk of rupture for unruptured intracranial aneurysms after growth is approximately 4.3% at 1 year. A new triple-S (size, site, shape) model helps predict this rupture risk.

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Area of Science:

  • Neurosurgery
  • Radiology
  • Vascular Neurology

Background:

  • Unruptured intracranial aneurysms (UIAs) require monitoring for growth to assess rupture risk.
  • Growth detection in UIAs is linked to increased rupture risk, but absolute risk remains unclear.

Purpose of the Study:

  • Determine the absolute rupture risk of UIAs after growth detection.
  • Develop a predictive model for UIA rupture post-growth.

Main Methods:

  • Individual patient data from 15 international cohorts were analyzed.
  • Included patients had untreated UIAs with documented growth (≥1 mm increase).
  • Kaplan-Meier estimates and Cox regression identified rupture predictors and risks at 6 months, 1 year, and 2 years.

Main Results:

  • 312 patients with 329 growing aneurysms were included; 7.6% ruptured.
  • Absolute rupture risks were 2.9% (6 months), 4.3% (1 year), and 6.0% (2 years).
  • Predictors included aneurysm size (≥7 mm), irregular shape, and specific locations (MCA, ACA, PCoA, posterior circulation).

Conclusions:

  • Rupture risk within 1 year of growth detection is approximately 4.3% (1 in 25 aneurysms).
  • The developed triple-S (size, site, shape) model effectively estimates the absolute rupture risk.
  • This model aids in managing UIAs by providing quantitative risk assessment after growth detection.