Infarct Simptomele infarctului Medicul cardiolog explica pacientului care sunt arterele coronare Arterele inimii

A myocardial infarction (MI) or heart attack is permanent damage to the heart muscle. “Myo” means muscle, “cardial” refers to the heart, and “heart attack” means tissue death due to lack of blood supply.

Coronary arteries are the network of blood vessels that surround the heart muscle. To function normally, the heart muscle needs a continuous supply of oxygen and nutrients from the blood.

A heart attack occurs when one of the arteries of the heart suddenly becomes blocked, stopping the flow of blood to the heart muscle.
When fat builds up inside the arteries over time, it causes minor injuries to the walls of the blood vessels. To provide protection, the cells release chemicals that make the walls of the blood vessels stick together.

Substances that travel through the bloodstream, such as inflammatory cells, cellular waste, protein, and calcium, thus begin to stick to the walls of the vessel. Fat and other substances combine to form a material called atheroma plaque.

As we age, without proper diagnosis and treatment, these atheroma plaques block blood vessels and cause heart attacks.

Simptome infarct

The symptoms of a heart attack are:

Angina pectoris: Chest pain or discomfort in the center of the chest described as a heaviness, tightness, pressure, pain, burning, numbness that lasts more than a few minutes or disappears and returns. It is sometimes mistaken for indigestion or confusion with heartburn.
Pain or discomfort in other areas of the upper body, including the upper limbs, left shoulder, neck, jaw, or stomach.

  • Difficulty breathing or jerky breathing
  • Sweating or “cold sweating”
  • Satiety, indigestion, or suffocation (may appear as “heartburn”)
  • Nausea or vomiting
  • Extreme confusion, dizziness, weakness, or anxiety
  • Fast or irregular heartbeat

Coronary angioplasty is a treatment that uses stents to restore normal blood circulation to the arteries of the heart. This procedure improves blood flow to the heart by opening the narrowed or blocked coronary artery.
A stent is a small tube made of a wire mesh that holds open blood vessels in the body, such as stenotic or narrowed arteries.

The stent is a flexible cylinder-shaped device that is inserted into an artery whose blood flow is reduced. The role of the stent is to keep the artery permeable and therefore to allow the blood to circulate without any obstacles. Most commonly, stents are used to restore blood flow through the coronary arteries, blood vessels that play an essential role in the normal functioning of the heart.

Pharmacologically active stents subsequently proved to be very effective in reducing the rate of intrastent restenosis in thousands of patients, followed in dozens of trials.

Terumo is a world leader in the segment with more than 30% global market share.

Terumo introduced the first guidewire on the market in 1985 (Guidewire M Standard) and since then has continued to develop new types of guidewires with different characteristics, such as shape retention, support, tip flexibility, anti-bending, tip durability, etc.

Terumo’s portfolio offers a wide variety of introductory sheaths, expansion balloons, guidewires, and stents.

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