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Aneurysm III: Interprofessional Care01:26

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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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Aneurysm coil embolization using a 1.5-fr distal outer diameter microcatheter.

David A Stidd1, Demetrius K Lopes1, Michael Chen1

  • 1Department of Neurosurgery, Rush University Medical Center, Chicago, IL, USA.

Neurointervention
|March 20, 2014
PubMed
Summary

The Marathon microcatheter offers advantages for cerebral aneurysm coil embolization, particularly in complex anatomies. Its longer length and smaller distal outer diameter aid coil delivery, despite some limitations.

Keywords:
Cerebral aneurysmsCoil embolizationEndovascular proceduresMicrocatheter

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Area of Science:

  • Neurosurgery
  • Interventional Radiology
  • Medical Device Technology

Background:

  • Cerebral aneurysm coil embolization is a common endovascular procedure.
  • Existing microcatheters face challenges with tortuous vasculature and small aneurysms (<3 mm).
  • The Marathon microcatheter was evaluated for its utility in these challenging cases.

Purpose of the Study:

  • To illustrate the advantages and limitations of the Marathon microcatheter for cerebral aneurysm coil embolization.
  • To assess its suitability for complex vascular anatomies and small aneurysms.
  • To guide future microcatheter development.

Main Methods:

  • Case series and literature review.
  • Evaluation of the Marathon microcatheter (Covidien) in coil embolization procedures.
  • Analysis of technical performance, including coil delivery and aneurysm occlusion.

Main Results:

  • The Marathon microcatheter demonstrated effectiveness in delivering coils for satisfactory aneurysm occlusion.
  • Unique advantages include its extended length and smaller distal outer diameter (OD).
  • Technical compromises were noted, such as distal marker visibility, overall length, and risk of buckling.

Conclusions:

  • The Marathon microcatheter can be a valuable tool for coil embolization of cerebral aneurysms, especially in challenging anatomies.
  • Its smaller distal OD and longer length are beneficial for accessing difficult-to-reach lesions.
  • Further development should focus on optimizing these features for improved device performance.