Coronaries are the arteries that feed the heart.
Right Coronary
Aorta artery
Left Coronary
Treatment of coronary artery obstructions by catheter
Obstruction
Healthy Coronary
Obstructed Coronary
Affected Region
They can suffer from obstructions that impede blood flow and can cause fatigue, pain and even a heart attack.
Two thirds of patients with coronary obstruction can be treated by angioplasty with stent implants.
Femoral Artery
The radial approach allows the patient to walk immediately after the procedure, increasing the feeling of comfort.After the groin examination (femoral technique), the patient must remain lying with the leg immobile for at least four hours.
In addition, the radial approach reduces the incidence of bleeding and bruising at the puncture site, as well as the risk of serious vascular complications (arteriovenous fistula, pseudoaneurysm).
Angioplasty lasts from 30 minutes to 3 hours and is done using a catheter inserted through the wrist into the radial artery and guided to the heart.
Radial Artery
Click here to learn about the advantages of wrist angioplasty
Radial access
Diagnosis is made by injecting contrast media in the coronary arteries, which highlights the obstructed points.The procedure is monitored using an
x-ray device called
an angiograph.
A balloon along a metal mesh, the stent, is placed at the site of the narrowing.
The balloon is inflated, expanding the stent and clearing the coronary.
The balloon and catheter are removed.
The stent remains, keeping the coronary open and restoring blood flow.
In addition to conventional stents (without drugs), there are pharmacological stents (with drugs) and absorbable stents.
Click here to learn about other types of stents
Pharmacological stents are soaked with medications (drugs) that block excessive scarring that can cause, in up to 30-40% of cases treated with conventional (non-medicated) stents, the return of coronary obstruction (narrowing) due to excessive healing process (restenosis). For this reason, pharmacological stents are currently used in most patients.
Recently, absorbable stents
(or bioabsorbable vascular supports) have been developed. They are similar to metallic stents, but unlike these, they are not permanent.
Absorbable stents are made of polymers, which are fully absorbed by the artery at the end of the healing process. These temporary devices allow the coronary artery to regain its usual characteristics after a few months.
The radial approach allows the patient to walk immediately after the procedure, increasing the feeling of comfort. After the groin examination (femoral technique), the patient must remain lying with the leg immobile for at least four hours. In addition, the radial approach reduces the incidence of bleeding and bruising at the puncture site, as well as the risk of serious vascular complications (arteriovenous fistula, pseudoaneurysm).
Radial access
The procedure is monitored using an x-ray device called an angiograph.
Diagnosis is made by injecting contrast media
in the coronary arteries, which highlights the obstructed
points.
The balloon is inflated, expanding the stent and clearing the coronary.
Tratamento das obstruções das artérias coronárias por cateter
The balloon and catheter are removed. The stent remains, keeping the coronary open and restoring blood flow.
Pharmacological stents
Absorbable stents