What is lmca full form in medical?

In medical terminology, **LMCA** stands for **Left Main Coronary Artery**. It is one of the most important arteries supplying blood to the heart. The LMCA originates from the aorta and quickly branches into two major arteries: the **Left Anterior Descending (LAD)** artery and the **Left Circumflex (LCx)** artery. These branches provide oxygen-rich blood to large portions of the heart muscle. Blockage or narrowing of the LMCA can be life-threatening, often referred to as "left main disease," and may require urgent interventions such as angioplasty, stenting, or coronary artery bypass surgery (CABG) to restore proper blood flow and prevent heart failure.