PTCA and / or stenting are methods used to treat narrowing or complete obstruction of heart-feeding vessels detected after coronary angiography.
The PTCA and / or stent is performed in the angio laboratory, such as coronary angiography, using local anesthesia instead of entry, before the patient is asleep. 
Procedure duration is variable. At the end of the procedure, the appropriate service is taken according to the recommendation of the patients doctor. 
Coronary balloon angioplasty is performed using specially designed materials. 
First, the catheter is inserted through the inserted sheath instead of the ventilator, and is passed through the vein narrowing region with a very thin guide wire guided 
through the catheter. The balloon is moved over the guide wire to reach the patient. 
Then, this balloon is inflated with liquid from the outside until the narrowness is opened. 
The process is terminated when it is determined that opening in the subsequent control is sufficient.  
It is rare to ensure proper opening. In addition, 95% of the stents are applied to the patient to reduce the risk of recurrence. 
In the beginning, only stents made of naked, special, stainless steel material have been used, but nowadays, new and different stents
are also used in terms of drug release depending on technological progress.