Stents In Coronary Arteries

Once a good position was confirmed, balloon angioplasty was carried out x 1. Conduit angiogram shows improved flow within the LPA stent. However, no significant improving was noticed in the narrowed conduit. Therefore, a Rosen guide wire was exchanged by a 0.35 Amplatz Super Stiff Wire to facilitate stenting of the RV-PA conduit. A pre-mounted 10 mm x 26 mm Valeo stent was tracked over a 0.35 Amplatz Supper Stiff Wire. Once the appropriate position was confirmed, the stent was deployed in the RV-PA conduit. Subsequent pressure measurement revealed improved in the RV pressure ( RV pressure ½ systemic from ¾ systemic). Conduit angiogram was carried out through the long sheath which shows satisfactory position of the stent with good flow in the conduit, RPA, and LPA and no extravasation or stent fracture was

Coronary angioplasty is a procedure that improves blood flow to the heart by using a special balloon to open a blocked coronary artery from the inside to restore effective circulation to the muscle. To prevent constant blockage, a small tube called a stent may be inserted in the vessel to keep it open. Coronary artery bypass graft surgery is often successful treatment. Is an operation in which blood flow is redirected around a narrowed area in one or more of individual coronary arteries. This lets blood flow more freely to individual heart muscle. After heart attack is develop or be at high risk of developing abnormal heart rhythms that could be life threatening. A small device can be put into the chest and connected to the heart to treat an

Stents that deliver anti-proliferative drugs from durable polymer, have reduced both clinical and angiographic restenosis compared with bare metal stents without increasing adverse events (AEs) including death or myocardial infarction (MI) (1-2). However, permanent polymers may be associated with hypersensitivity reactions, delayed and/or incomplete vascular healing which may contribute to an increased risk of both late (30 days to 1 year) and very late (beyond 1 year) stent thrombosis (ST) which was particularly evident following first generation DES (5,6). Even newer durable polymers with enhanced biocompatibility and improved clinical outcomes have still been incriminated in chronic inflammation, thrombosis and neoatherosclerosis (which occurs earlier and with increased prevalence following both 1st and 2nd generation DES (7,8,9).

The procedure involves attaching an unclogged blood vessel to a blocked coronary artery beyond the obstruction. One or both internal thoracic (also called internal mammary) arteries can be rerouted or a piece of the saphenous vein or the radial artery can be made into a conduit.

Firstly, the main function of the implanted stent is to prevent arteries from clogging back up and allowing blood to flow through. Secondly, we believe that our implant material should be fatigue resistant because it experience pulsatile flow due to the presence of a pulsatile blood pressure. The implant should be stronger in radial than shear because the implant will have to withstand significant amount of force from the fatty deposits of the vessels. Additionally, the implant should have minimum reactivity with blood constituents because we don’t want to induce unnecessary thrombosis or any sort of inflammation. Thirdly, we believe that class 1 biomaterial are ideal for our implant because our material requires failure loads of 10-50 times the body weights, meaning it has to be extremely strong. Furthermore, we believe that our material should have extremely high resistance to compressive deformation as well as little reactivity with the environment, in order to accomplish the necessary

The stent will be placed where it can be expanded to hold the artery open. Some stents are designed to simply keep the artery held open. Other stents used are drug-eluting stents. These stents are coated with pharmacologic agents that work to prevent restenosis of the artery.

Airway stents are designed to restore airway patency and to mimic normal airway anatomy and physiology by their simple hollow tube design which comes in many different sizes and materials. They help improve the pulmonary functions of patients who suffer from central airway obstruction by maximizing ventilation and oxygenation in the narrowed airways. Airway stents can be either permanent or a temporary mechanism which can be removed once the underlying airway disease has been treated. They can be placed in either the trachea or the bronchi depending on where the narrowed portion of the airway is located. A computerized tomography scan (CT) is used to determine which type of airway stent is best suitable for each patient. Airway stents are

In our study, we could evaluate the patency of the stents of various patients by indirect signs of patency (opacification of the vessels distal to the stent).

• A catheter will be inserted into a blood vessel that carries blood away from the heart (arterial catheter). This catheter will be used to check blood pressure and get blood samples during the procedure.

Angioplasty – a technique used to widen the arteries by placing a deflated balloon onto catheter a inserting it into the artery. The balloon is then inflated to widen blood vessels, after the balloon is deflated and removed along with the catheter and a wire mesh is put in place to keep the arteries open.

The placement of a soft plastic tube (stent) into the blocked ureter. The stent will keep the ureter open and allow urine to flow more normally.

There are several ways to overcome aortic valve stenosis. The first method being a minimally invasive procedure, the insertion of a transcatheter aortic valve replacement where the new tissue valve is inflated over the calcified one. The second method is open heart surgery where the calcified valve is completely replaced with a tissue valve or with a metal mechanical valve. The mechanical valve, though very effective at restoring normal flow and withstanding the test of time, can still use improvement. The St. Jude Regent mechanical valve, despite advantages over other mechanical valves, still has its flaws. Simple improvements such as covering the valve with artificial tissue using nanospring biomaterial adhesive can remove problems

A healthy, normal heart has two strong pumps. One pump uses arteries to push blood with oxygen through the body and away from the heart. The other uses veins to bring blood back into the heart then the lungs to get more oxygen. The main blood supplier, the aorta, branches off into two of the main coronary arteries into smaller ones.

I thought that today would be slow and boring because both doctor’s were out of the office. Turns out that I was wrong! There were only three people in the office today and that was me, one nurse, and the receptionist. One patient in particular absolutely could not go another day with a stent in her due to the severe pain that she was experiencing. Therefore; the nurse had to communicate back and forth with the doctor over the phone for him to give the order to pull the stent out. Although she was given the go ahead to remove the stent, she could not go out of her scope of practice in order to do the procedure. If there is a string that is visible, which in this case it was, a nurse can pull the stent out. I assisted with the procedure, held

“Coronary angiograms are part of a general group of procedures known as heart (cardiac) catheterizations. Cardiac catheterization procedures can both diagnose and treat heart and blood vessel conditions. A coronary angiogram, which can help diagnose heart conditions, is the most common type of cardiac catheterization procedure.” (Mayo Clinic Staff, 2016). In a coronary angiogram, a dye that is detectable by X-ray is introduced into the blood vessels of the heart. The X-ray machine quickly takes a sequence of images showing the flow of the blood vessels.