Vascular ProceduresBakersfield Heart Hospitals vascular surgery program uses the most advanced technology, including minimally invasive procedures whenever possible. Medical advancements in catheter-guided technology and imaging means that interventional radiologists, cardiologists and vascular surgeons can treat and diagnose a variety of vascular conditions without surgery. These minimally invasive procedures require only a small incision and are often less risky, produce less pain and result in a faster, easier recovery than surgical procedures.
Minimally invasive treatment options include;Atherectomy
Atherectomy is a minimally invasive surgical method of removing, mainly, atherosclerosis from a large blood vessel within the body. Today, it is generally used to effectively treat peripheral arterial disease of the lower extremities. Unlike angioplasty and stents, which push plaque into the vessel wall, atherectomy involves removing the plaque burden within the vessel. Increasing the vessel lumen by removing the plaque burden improves downstream wound healing, reduces claudication and pushes amputation levels more distal. While atherectomy is usually employed to treat arteries it can be used in veins and vein grafts as well.
Directional Coronary Atherectomy (DCA) is a minimally invasive procedure to remove the blockage from the coronary arteries and allow more blood to flow to the heart muscle and ease the pain caused by blockages. The procedure begins with the doctor injecting some local anesthesia into the groin area and putting a needle into the femoral artery, the blood vessel that runs down the leg. A guide wire is placed through the needle and the needle is removed. An introducer is then placed over the guide wire, after which the wire is removed. A different sized guide wire is put in its place. Next, a long narrow tube called a diagnostic catheter is advanced through the introducer over the guide wire, into the blood vessel. This catheter is then guided to the aorta and the guide wire is removed. Once the catheter is placed in the opening or ostium of one of the coronary arteries, the doctor injects dye and takes an x-ray. If a treatable blockage is noted, the first catheter is exchanged for a guiding catheter. Once the guiding catheter is in place, a guide wire is advanced across the blockage, then a catheter designed for lesion cutting is advanced across the blockage site. A low-pressure balloon, which is attached to the catheter adjacent to the cutter, is inflated such that the lesion material is exposed to the cutter. The cutter spins, cutting away pieces of the blockage. These lesion pieces are stored in a section of the catheter called a nosecone, and removed after the intervention is complete. Together with rotation of the catheter, the balloon can be deflated and re-inflated to cut the blockage in any direction, allowing for uniform debulking. A device called a stent may be placed within the coronary artery to keep the vessel open. After the intervention is completed the doctor injects contrast media and takes an x-ray to check for any change in the arteries. Following this, the catheter is removed and the procedure is completed.
A rotational atherectomy is a type of interventional coronary procedure to help open coronary arteries blocked with more calcified material and restore blood flow to the heart. This procedure utilizes a high speed rotational "burr" that is coated with microscopic diamond particles. It rotates at high speed (approximately 200,000 rpm), breaking up blockages into very small fragments (smaller than red blood cells) which can pass, harmlessly, into the circulation. Often angioplasty/stent is performed after rotational atherectomy to improve the results.
Carotid Artery Stenting
(CAS) is an endovascular, catheter-based procedure which unblocks narrowings of the carotid artery to prevent a stroke. Carotid artery stenosis (blockage) can present with no symptoms (diagnosed incidentally) or with symptoms such as transient ischemic attacks (TIAs) or cerebrovascular accidents (CVAs, strokes). Hardening of the arteries, also known as atherosclerosis, can cause a build-up of plaque. In hardening of the arteries, plaque builds up in the walls of your arteries as you age. Cholesterol, calcium, and fibrous tissue make up the plaque. As more plaque accumulates, your arteries can narrow and stiffen. Eventually, enough plaque may build up to reduce blood flow through your arteries, or cause blood clots or pieces of plaque to break free and to block the arteries in the brain beyond the plaque. Your carotid arteries are located on each side of your neck and extend from your aorta in your chest to the base of your skull. These arteries supply blood to your brain. You have one main carotid artery on each side, and each of these divides into two major branches, the external and the internal carotid arteries. The external carotid supplies blood to your face and scalp. Your internal carotid artery is more important because it supplies blood to the brain.
IVC filter implantation and removal
In an inferior vena cava filter placement procedure, Interventional Radiologists or Cardiologist use image guidance to place a filter in the inferior vena cava (IVC), the large vein in the abdomen that returns blood from the lower body to the heart. Blood clots that develop in the veins of the leg or pelvis, a condition called deep vein thrombosis (DVT), occasionally break up and large pieces of the clot can travel to the lungs. An IVC filter traps large clot fragments and prevents them from traveling through the vena cava vein to the heart and lungs, where they could cause severe complications or even death. Until recently, IVC filters were available only as permanently implanted devices. Newer filters, called optionally retrievable filters, may be left in place permanently or have the option to potentially be removed from the blood vessel later. This removal may be performed when the risk of clot traveling to the lung has passed. Removal of an IVC filter eliminates any long term risks of having the filter in place. It does not address the cause of the deep vein thrombosis or coagulation. Your referring physician will determine if blood thinners are still necessary. However, not all retrievable IVC filters are able to be retrieved. These filters can be safely left in place as permanent filters.
Peripheral angioplasty refers to the use of a balloon to open a blood vessel outside the coronary arteries. It is commonly done to treat atherosclerotic narrowings of the abdomen, leg and renal(kidney) arteries. PA can also be done to treat narrowings in veins, etc. Often, peripheral angioplasty is used in conjunction with peripheral stenting and atherectomy. Technically, angioplasty can be used to describe any dimensional treatment of blood vessels, whether enlarging, or reducing diameter, depending on requirements to treat the disease.
Peripheral Stenting is one treatment option for addressing Peripheral Arterial Disease (PAD). PAD refers to the formation of atherosclerotic plaques, or lesions, on the inside of an artery. These plaques are composed of cholesterol, fatty deposits, and other substances. Over time, the plaques increase in size, progressively restricting the flow of blood through the artery. PAD in the arteries of the legs can lead to pain in the legs due to the reduced blood flow. Left untreated, PAD can progress to completely blocking blood vessels, which can lead to ulcers, tissue death, and gangrene.
Temporary Dialysis Catheter placement
If you have kidney disease that has progressed quickly, you may not have time to get a permanent vascular access before you start hemodialysis treatments. You may need to use a venous catheter as a temporary access. A catheter is a tube inserted into a vein in your neck, chest, or leg near the groin. It has two chambers to allow a two-way flow of blood. Once a catheter is placed, needle insertion is not necessary. Catheters are not ideal for permanent access. They can clog, become infected, and cause narrowing of the veins in which they are placed. But if you need to start hemodialysis immediately, a catheter will work for several weeks or months while your permanent access develops.
Thrombolytic therapy is a treatment used to break up dangerous clots inside your blood vessels. To perform this treatment, your physician injects clot-dissolving medications into a blood vessel. In some cases, the medications flow through your bloodstream to the clot. In other cases, your physician guides a long, thin tube, called a catheter, through your blood vessels to the area of the clot. Depending on the circumstances, the tip of the catheter may carry special attachments that break up clots. The catheter then delivers medications or mechanically breaks up the clot. Your blood is normally a liquid that travels smoothly through your arteries and veins. Sometimes, however, blood components, called platelets, can form clumps and, together with other blood components, can cause the blood to gel. This process is called clotting or, more technically, coagulation. This is a normal process that protects you from excessive bleeding from even a minor injury. However, in certain circumstances blood clots can build up inside a blood vessel and block blood flow. At other times, pieces of these clots can break off, travel through your bloodstream, lodge in a blood vessel somewhere else in your body and obstruct normal blood flow. Blood clots in your heart or lungs, for example, can starve the organ and be life threatening. Depending upon the situation, your physician may decide to provide thrombolytic therapy, also called thrombolysis, as an emergency treatment or as a scheduled procedure to dissolve the blood clots. For example, you may receive emergency thrombolysis if you are having a stroke. In some circumstances, if you have DVT or a blocked bypass graft, your physician may schedule thrombolytic therapy for you.