Review of variations in origin of left circumflex coronary artery

Area of Science:

• Cardiovascular Medicine
• Anatomical Studies
• Interventional Cardiology

Background:

• Coronary artery anatomy can exhibit significant variations.
• The left circumflex coronary artery (LCx) is a major coronary vessel.
• Anatomical variations may impact surgical planning and outcomes.

Purpose of the Study:

• To report on anatomical variants in the origin of the left circumflex coronary artery.
• To describe the specific origin and course of these variant vessels.
• To highlight the clinical significance of LCx variations in coronary artery surgery.

Main Methods:

• Review of 200 routine coronary angiograms.
• Identification and documentation of patients with anomalous LCx origins.
• Detailed description of the anatomical course of variant LCx arteries.

Main Results:

• Five patients (2.5%) presented with anatomical variants of the LCx origin.
• Specific origins and courses of the variant LCx arteries were detailed.
• These variants were observed during routine diagnostic procedures.

Conclusions:

• Anatomical variants of the left circumflex coronary artery origin are not uncommon.
• Accurate identification of these variants is essential for successful coronary artery bypass grafting.
• Preoperative recognition of LCx variations can prevent intraoperative complications.