Coronary Artery Bypass Grafting (Bypass) Using Arterial Grafts
Coronary artery bypass grafting, also known as coronary bypass or heart bypass surgery, is one of the most effective cardiac surgical procedures for the treatment of coronary artery disease. In modern cardiac surgery, the use of arterial grafts has been shown to provide significantly better long-term outcomes compared to other techniques.
Bypass surgery aims to restore the normal blood flow to the heart muscle when the coronary arteries are narrowed or blocked due to atherosclerotic disease.
What is Coronary Artery Disease
Coronary artery disease is a condition in which the coronary arteries that supply blood to the heart become narrowed or blocked due to the buildup of lipids and atherosclerotic plaques.
Reduced blood flow to the heart muscle may cause:
- angina (chest pain)
- shortness of breath
- fatigue
- arrhythmias
- myocardial infarction (heart attack)
When the blockages are extensive or multiple, bypass surgery is the most effective treatment option.
What are Arterial Grafts
What are Arterial Grafts
In modern cardiac surgery, the use of arterial grafts is preferred, as they offer greater durability and better long-term performance.
The most common arterial grafts are:
the internal mammary artery
the radial artery
other arteries of the chest wall
Arterial grafts have significant advantages compared to venous grafts, as they remain functional for a longer period of time.
Πλεονεκτήματα αρτηριακών μοσχευμάτων
Η χρήση αρτηριακών μοσχευμάτων προσφέρει:
- μεγαλύτερη διάρκεια ζωής του μοσχεύματος
- καλύτερη αιμάτωση του καρδιακού μυός
- μικρότερο κίνδυνο επαναστένωσης
- καλύτερα μακροχρόνια αποτελέσματα
- μικρότερη πιθανότητα νέων καρδιακών επεισοδίων
Για τον λόγο αυτό, η τεχνική αυτή εφαρμόζεται όλο και περισσότερο στη σύγχρονη καρδιοχειρουργική.
When is bypass surgery needed
Coronary artery bypass surgery is recommended when:
- there are multiple blockages in the coronary arteries
- the narrowing affects the main coronary artery (left main)
- medication alone is not sufficient
- angioplasty is not feasible or does not provide a permanent solution
- there is a high risk of heart attack
The decision is made after a thorough cardiological evaluation.
How the procedure is performed
Coronary artery bypass surgery is performed in a specialized cardiac surgery center.
The main stages of the procedure include:
- Patient preparation and anesthesia
- Access to the heart through the chest
- Harvesting of arterial grafts
- Grafting the vessels onto the coronary arteries
- Restoration of normal blood circulation
The duration of the procedure usually ranges from 3 to 5 hours.
Modern cardiac surgery techniques
Advances in medical technology have enabled the development of less invasive techniques.
One of the most important is endoscopic cardiac surgery, which is performed through smaller incisions.
The advantages of this approach include:
- less surgical trauma
- reduced postoperative pain
- faster recovery
- shorter hospital stay
- better aesthetic result
The choice of the appropriate technique depends on the patient’s condition and the severity of coronary artery disease.
Postoperative Course
After the surgery, the patient is monitored in the intensive care unit for a short period of time.
They are then transferred to a cardiac surgery ward until their condition is fully stabilized.
Most patients can gradually return to their daily activities within a few weeks.
Proper follow-up and the adoption of a healthy lifestyle contribute to the long-term success of the procedure.
(FAQ)
It is a surgical procedure that creates a new pathway for blood flow to the heart muscle by bypassing blocked arteries.
Arterial grafts have greater durability and provide better long-term function.
The procedure usually lasts from 3 to 5 hours.
Full recovery may take from 6 to 12 weeks.
Coronary artery bypass surgery is a well-established and safe procedure when performed by a specialized cardiac surgery team.
Yes. After recovery, most patients return to normal activities and experience a significant improvement in their quality of life.
Dr. E. Andreas Agathos is an internationally recognized cardiothoracic surgeon with extensive experience in the treatment of complex cardiac surgical conditions.
He has trained in cardiothoracic surgery at the University of London and at Harvard Medical School, and has served as a Visiting Professor at St. Vincent Hospital in Portland, Oregon, as well as a Clinical Associate in Springfield, Massachusetts, USA.
He holds a PhD from the University of Athens and possesses significant international qualifications:
- FRCS – Royal College of Surgeons of Edinburgh
- FACS – American College of Surgeons
- FETCS – European College of Surgeons
- FICS – International College of Surgeons
Dr. Agathos also holds multiple international patents (World patent, USA patent, European patent) for the development of new biological materials, innovative heart valve designs, and anti-calcification treatment methods.
He has served as Director of Cardiac Surgery at hospitals such as Hygeia, Athens Medical Center, and Euroclinic Athens, and collaborates with leading international hospitals including Massachusetts General Hospital in Boston and Triemli Hospital in Zurich.
With more than 5,000 procedures performed in Greece and abroad, he has particular expertise in endoscopic cardiac surgery, offering modern and less invasive solutions to patients.
His international experience, scientific innovation, and global patents in the field of cardiac valves place Dr. Agathos among the most specialized cardiac surgeons in modern cardiac surgery.
