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Pattern of vascular remodeling of distal reference segment after recanalization of chronic total occlusion, long-term

Wassam El Din Hadad El Shafey1

  • 1Cardiology Department, Faculty of Medicine, Menoufiya University, Shebin El Koom, Egypt.

The Egyptian Heart Journal : (EHJ) : Official Bulletin of the Egyptian Society of Cardiology
|April 7, 2018
PubMed

Insights

Chronic total occlusion (CTO) involves vessel hardening due to thrombus and cholesterol. Research suggests viable endothelial cells may guide CTO development and neo-vascularization, but their role post-recanalization remains unclear.

Area of Science:

  • Cardiovascular Research
  • Vascular Biology
  • Pathophysiology

Background:

  • Chronic total occlusion (CTO) is a complex vascular condition.
  • CTO pathogenesis involves thrombus, cholesterol, collagen, and calcium deposition.
  • Endothelial cell role in CTO development is under investigation.

Observation:

  • Experimental models initially suggested endothelial cell necrosis in CTO.
  • Recent findings indicate potential endothelial cell viability in CTO.
  • Endothelial cells may guide CTO development and neo-vascularization via paracrine signaling.

Findings:

  • CTO neo-vascularization occurs within the vessel lumen and wall layers.
  • Paracrine substances released by endothelial cells may influence CTO progression.
  • The impact of recanalization on endothelial dysfunction post-CTO is uncertain.

Implications:

  • Understanding endothelial cell viability is crucial for CTO pathogenesis.
  • Further research is needed to clarify the role of endothelial cells in CTO.
  • Investigating endothelial recovery post-recanalization may reveal therapeutic targets for vasodilation and positive remodeling.

Keywords:
CTODistal reference segmentRecanalizationVascular remodeling

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