Myocardial Infarction and Coronary Angioplasty Treatment, Animation.

Aug 18, 2023

Myocardial Infarction and Coronary Angioplasty Treatment, Animation.

Anatomy of Heart Attacks. This video is available for instant download licensing here: https://www.alilamedicalmedia.com/-/g…
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Myocardial infarction, commonly referred to as heart attack, is the sudden death of part of the heart muscle due to loss of blood flow. This occurs when one of the coronary arteries — the arteries that supply blood to the heart — is blocked. The blockage is commonly due to atherosclerosis - cholesterol plaques/fat deposits on the wall of blood vessels. As the plaque builds up, the vessel becomes narrow restricting blood flow. Under stress, the plaque may rupture. This triggers formation of blood clot on top of the plaque leading to complete blockage of blood flow. When this happens in a coronary artery, the downstream patch of the myocardium dies from lack of oxygen. Weaken heart muscle may disrupt electrical activity of the heart and subsequently cause cardiac arrest.
Coronary angioplasty is a non-surgical procedure used to open narrowed or blocked coronary arteries. It can also be performed as an emergency treatment for myocardial infarction. The first part of the procedure is to localize the site of blockage. This part is called cardiac catheterization. A guiding catheter is inserted through the femoral artery at the groin and threaded all the way to the aorta. The tip of the catheter is placed at the beginning of the coronary artery to be investigated. A radio-opaque dye is injected through the catheter into the coronary artery. This enables real-time visualization of the artery using X-ray imaging. A narrowed part of an artery would appear as a bottle neck on an x-ray image. After the location of narrowed artery is identified, angioplasty can begin. A guidewire with a deflated balloon is inserted and pushed to the location of blockage. The balloon is inflated to crush the plaque. At the end of procedure, the balloon is again deflated and removed together with all catheters and guidewire. In some cases, a stent is inserted together with the balloon, inflated and left on place of the plaque to keep the artery open permanently.

Content

2.54 -> Myocardial infarction, commonly referred to as heart attack, is the sudden death of

9.47 -> part of the heart muscle due to loss of blood flow. This occurs when one of the

15.26 -> coronary arteries – the arteries that supply blood to the heart – is blocked. The blockage

21.95 -> is commonly due to atherosclerosis - cholesterol plaques/fat deposits on the wall of blood vessels.

28.97 -> As the plaque builds up, the vessel becomes narrow restricting blood flow. Under stress,

37.01 -> the plaque may rupture. This triggers formation of blood clot on top of the

42.59 -> plaque leading to complete blockage of blood flow. When this happens in a coronary artery,

48.26 -> the downstream patch of the myocardium dies from lack of oxygen. Weaken heart

54.53 -> muscle may disrupt electrical activity of the heart and subsequently cause cardiac arrest.

60.17 -> Coronary angioplasty is a non-surgical procedure used to open narrowed or blocked

69.35 -> coronary arteries. It can also be performed as an emergency treatment for myocardial

75.26 -> infarction. The first part of the procedure is to localize the site of blockage. This part is

82.94 -> called cardiac catheterization. A guiding catheter is inserted through the femoral

88.85 -> artery at the groin and threaded all the way to the aorta. The tip of the catheter is placed at

96.86 -> the beginning of the coronary artery to be investigated. A radio-opaque dye is injected

103.1 -> through the catheter into the coronary artery. This enables real-time visualization of the

109.85 -> artery using X-ray imaging. A narrowed part of an artery would appear as a bottle neck on an x-ray

116.78 -> image. After the location of narrowed artery is identified, angioplasty can begin. A guidewire

126.62 -> with a deflated balloon is inserted and pushed to the location of blockage. The balloon is inflated

135.5 -> to crush the plaque. At the end of procedure, the balloon is again deflated and removed together

143.63 -> with all catheters and guidewire. In some cases, a stent is inserted together with the balloon,

151.73 -> inflated and left on place of the plaque to keep the artery open permanently.

Source: https://www.youtube.com/watch?v=mLmKq5bQOg0