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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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Related Experiment Video

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A Murine Model of Stent Implantation in the Carotid Artery for the Study of Restenosis
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[Subintimal recanalization. Indications, technique and results].

B Radeleff1, M Sumkauskaite2, N Kortes2

  • 1Sektion für Interventionelle Radiologie, Diagnostische und Interventionelle Radiologie, Universitätsklinikum Heidelberg, Im Neuenheimer Feld 110, 69120, Heidelberg, Deutschland. Boris.Radeleff@med.uni-heidelberg.de.

Der Radiologe
|February 18, 2016
PubMed
Summary

Subintimal recanalization is a key minimally invasive option for lower extremity arterial blockages when endoluminal methods fail. While effective, it requires skilled physicians to manage complex techniques and potential complications.

Keywords:
Chronic total occlusion (CTO)Critical limb ischemia (CLI)Intravascular ultrasound (IVUS)Percutaneous intentional extraluminal recanalization (PIER)Percutaneous transluminal angioplasty (PTA)

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Area of Science:

  • Vascular Surgery
  • Interventional Radiology
  • Endovascular Interventions

Background:

  • Endovascular interventions aim to restore blood flow in lower extremities.
  • Subintimal recanalization is a crucial alternative for chronic total occlusions (CTOs) when endoluminal recanalization is not feasible.
  • This technique intentionally creates a channel in the vessel wall to bypass occlusions.

Purpose of the Study:

  • To provide an overview of the significance of subintimal recanalization in the lower extremities.
  • To discuss the evolution and effectiveness of subintimal recanalization techniques.

Main Methods:

  • Review of subintimal recanalization techniques for lower extremity arterial disease.
  • Comparison of conventional catheter and wire methods with newer re-entry devices.
  • Analysis of technical success rates and failure modes, particularly re-entry challenges.

Main Results:

  • Technical success rates for subintimal recanalization of CTOs range from 65-100%.
  • Technical failure, often due to re-entry difficulties, occurs in about 25% of cases with conventional methods.
  • Re-entry devices have improved technical success, reduced complications and procedure time, but increase costs.

Conclusions:

  • Subintimal recanalization offers a high technical success rate for treating high-grade stenoses and CTOs in the lower extremities.
  • Both conventional and device-assisted techniques require experienced physicians skilled in managing complex materials and complications.
  • The choice of technique depends on physician expertise, available resources, and patient-specific factors.