What does "Left dominant" mean in a report or doctor's letter? In our medical dictionary, you will find a patient-friendly explanation of the meaning of this medical term.
"Left dominant" in medicine typically refers to the heart's blood supply system. In most people, the right coronary artery supplies the majority of the blood to the heart. However, in a "left dominant" system, the left coronary artery plays this major role. This is a natural variation and does not necessarily indicate a health problem.
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