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Left main PCI: An observational analysis from large single-centre experience.

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Unprotected left main percutaneous coronary intervention (uLMPCI) is a safe and effective treatment for left main disease, especially with a low Syntax score. High Syntax scores predict adverse outcomes, highlighting the need for careful patient selection in uLMPCI procedures.

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Area of Science:

  • Cardiology
  • Interventional Cardiology
  • Vascular Medicine

Background:

  • Efficacy of unprotected left main percutaneous coronary intervention (uLMPCI) is established, but data from the Indian subcontinent is limited.
  • This study addresses the lack of regional data by analyzing single-center uLMPCI outcomes.

Purpose of the Study:

  • To evaluate the long-term outcomes following unprotected left main percutaneous coronary intervention (uLMPCI).
  • To identify predictors of adverse cardiovascular and cerebrovascular events after uLMPCI.

Main Methods:

  • A retrospective analysis of 62 consecutive patients undergoing uLMPCI between 2006 and 2013.
  • Detailed case data was collected from a maintained computerized database.
  • Follow-up duration averaged 669.8 days, assessing major adverse cardiovascular and cerebrovascular events (MACCE) at three years.

Main Results:

  • Procedural success rate for uLMPCI was high at 98.4%.
  • Three-year MACCE-free survival was 76.7%, with cardiac death, repeat intervention, and cerebrovascular accident occurring in 9.7%, 8%, and 3.2% of patients, respectively.
  • Syntax score >32 was identified as the sole independent predictor of adverse outcomes, with significantly lower event-free survival (33.3%) compared to Syntax score ≤32 (87.1%).

Conclusions:

  • Unprotected left main percutaneous coronary intervention (uLMPCI) demonstrates safety and efficacy as an alternative to coronary artery bypass grafting (CABG).
  • uLMPCI is particularly effective for left main disease alone or with single-vessel disease when the Syntax score is ≤32.
  • Patients with a Syntax score >32 have a higher risk of adverse outcomes, necessitating careful consideration in treatment planning.