+91 9019383552
lmca-lesions

Left Main Coronary Artery Lesions

Left main coronary artery (LMCA), despite its short length, is one of the most challenging areas for both cardiovascular surgeons and interventional cardiologists.

Significant LMCA disease is defined as greater than 50% angiographic narrowing of the vessel.

The LMCA is responsible for supplying approximately 75% of the left ventricular (LV) cardiac mass in patients with right dominant circulation and nearly 100% in patients with left dominant circulation.

Severe LMCA disease can significantly reduce blood flow to a large portion of the myocardium, placing patients at high risk for left ventricular dysfunction and arrhythmias.

Diagnosis of LMCA Disease

  • Most patients with LMCA disease are symptomatic.
  • Diagnosis is usually made by coronary angiography.

There are three options for treating LMCA disease:

  • Medical therapy
  • PCI
  • CABG

LMCA patients should receive preventive therapies to reduce the risk of subsequent cardiovascular events.

  • Smoking cessation
  • Exercise
  • Lower lipid levels
  • Management of diabetes mellitus
  • Achieve target blood pressure goals

  • Surgical treatment of LMCA disease traditionally involved CABG as the standard of care.
  • PCI has emerged as a possible alternative treatment method.
  • Patient characteristics and lesion location are important factors in determining the most suitable treatment option.
  • Operator experience and technical considerations also play a major role in treatment selection.
LMCA Treatments