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Value of different CTO scoring systems in predicting procedural success in coronary chronic total occlusion

Ahmed Mohammed Ali AlAshry1, Muhammed Nagy Nagiub2, Magdy Farouk Ahmed Ismael3

  • 1Cardiology Department, Faculty of Medicine, Cairo University, Cairo, Egypt.

The Egyptian Heart Journal : (EHJ) : Official Bulletin of the Egyptian Society of Cardiology
|March 5, 2024
PubMed

Insights

The CASTLE score best predicts success for percutaneous coronary intervention (PCI) in chronic total occlusion (CTO) cases among Egyptian patients. Choosing the right scoring system aids planning for better PCI outcomes.

Area of Science:

  • Cardiology
  • Interventional Cardiology

Background:

  • Chronic total occlusion (CTO) lesions present a significant challenge in coronary interventions, often necessitating coronary artery bypass graft surgery (CABG).
  • Accurate assessment of procedural potential is crucial for successful percutaneous coronary intervention (PCI) of CTOs.
  • This study evaluated various CTO scoring systems for predicting PCI success in Egyptian patients.

Purpose of the Study:

  • To compare the predictive efficacy of different CTO scoring systems in determining the success of PCI.
  • To identify the most effective scoring system for planning CTO PCI procedures in the Egyptian population.

Main Methods:

  • A study involving 100 Egyptian patients (aged 37-81) with CTO lesions planned for elective PCI.
  • Experienced operators performed PCI, meticulously recording procedural variables and complications.
  • Logistic regression analysis was employed to assess the relationship between scoring systems and PCI success rates.

Main Results:

  • All evaluated CTO scoring systems showed an inverse linear relationship between score values and success rates.
  • The Euro CTO (CASTLE) score demonstrated superior predictive efficacy for PCI success.
  • Other scores, including CL, ORA CTO, PROGRESS, and J-CTO, showed varying degrees of predictive ability, with PROGRESS having the least.

Conclusions:

  • The CASTLE score is the most effective tool for predicting PCI success in Egyptian patients with CTO.
  • Operators should select scoring systems considering their experience and specific case characteristics.
  • Thorough pre-procedural planning is paramount for optimizing success rates in CTO PCI, regardless of the scoring system used.
Abstract

Keywords:
CTO scoring systemsChronic total occlusion (CTO)Egyptian patientsPercutaneous coronary intervention (PCI)

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