Final answer:
Surgical interventions for coronary heart disease include angioplasty, often with the placement of a coronary stent, and coronary artery bypass grafting (CABG) to improve blood flow to the heart muscle.
Step-by-step explanation:
The question relates to surgical interventions for Huntington's Disease (HD), but the information provided pertains to treatment options for coronary heart disease (CHD), such as lifestyle changes, medical treatment, and specific coronary interventions. For HD, a neurodegenerative genetic disorder, there are no known surgical interventions that can cure the disease, and treatment primarily focuses on managing symptoms. However, for CHD, surgical interventions may include procedures such as angioplasty and coronary artery bypass grafting (CABG). Angioplasty involves using a balloon to widen blocked or narrowed coronary arteries, often with the placement of a coronary stent to keep the artery open. CABG is a major surgery where arteries or veins from elsewhere in the body are grafted to the coronary arteries to bypass narrowed or blocked areas and improve blood flow to the heart muscle.