Utilizing the technology of very small catheters, our specialists can access parts of the brain that would normally be inaccessible or would require more invasive surgery. Neurointerventional Surgery, Interventional Neuroradiology, or Endovascular Neurosurgery, is a subspecialty combining minimally invasive techniques in Radiology and Neurosurgery to treat vascular conditions of the central nervous system — the brain, spinal cord, head and neck. Our talented and experienced team uses the most innovative technology in … Vasospasm (narrowing) of the vessels that supply the brain can occur after a bleed from an aneurysm in the head (subarachnoid hemorrhage). Your browser may not support display of this image.You will be asked to lie very still while your doctor gets the pictures he needs. This method may not detect some aneurysms due to overlapping structures or spasm. Blockages in blood vessels in the head (intracranial) are usually caused by hardening of the arteries (atherosclerosis); treatment with medicines is not as effective in keeping the vessel open as it is elsewhere in the body. Patient radiation dose is an important issue due to hazards of X-ray radiation. Neurointerventional radiology (NIR) procedures often require an extended long time to perform. William P. Dillon, Christopher F. Dowd, in Aminoff's Neurology and General Medicine (Fifth Edition), 2014. A sheath is a plastic tube through which the catheter will be inserted into the blood vessel and advanced to the carotid artery. Neurointerventional Radiology. Neurointerventional surgery is a relatively new subspecialty of radiology that offers minimally invasive alternatives to traditional open surgical procedures. What Is Neurointerventional Radiology? Interventional neuroradiology (or endovascular neurosurgery), is practiced by specialty trained neuroradiologists, neurosurgeons and neurologists, utilizing an endovascular approach to treat vascular diseases of the central nervous system. There re many abnormalities of the blood vessels that affect the brain, head, neck, and spine. For patients, the benefits of neurointerventional surgery (also commonly known as interventional neuroradiology) include smaller incisions, less risk, faster recovery and less pain than traditional surgery. The goal of the Neurointerventional Radiology Division of UMass Memorial Health Center is to provide comprehensive, state-of-the-art, minimally invasive care to patients with vascular diseases of the brain and spine including stroke, aneurysm, arteriovenous malformations, vascular stenosis, and spinal abnormalities. If the blockage gets too severe, not enough blood will get to that part of the brain, and a stroke may occur. Another x-ray picture will be taken to verify the position of the stent. It is important to note that patients enrolled in the ISAT were evaluated by both a neurosurgeon as well as an endovascular coiling specialist, and both physicians had to collaborate and agree that the aneurysm was treatable by either technique. As well, the film of the right demonstrates decreased filling from the posterior cerebral supply to the AVM. Extracranial atherosclerosis should be treated when it is found. It is always a good idea to write down your questions so you won’t forget and to have another person come with you to your visit. The central nervous system is made up of the brain and the spinal cord. They also work closely with internal hospital specialists to utilize diagnostic capabilities. The study found that, in patients equally suited for both treatment options, endovascular coiling treatment produces substantially better patient outcomes than surgery in terms of survival free of disability at one year. The spasm can be severe enough to prevent enough blood from reaching the brain, causing a stroke. Imaging (B) immediately after angioplasty revealed a small intimal tear which was (C) healed at 3 months with minimal residual stenosis. The patient made an excellent recovery from surgery with no neurologic deficits. Techniques called angioplasty (balloon catheter), stent (a metal tube placed in the blocked area), and thrombolysis (clot-busting medication), and many more are all tools your doctor has for treatment. However, long-term follow-up will be essential to assess the durability of the substantial early advantage of endovascular coiling over conventional neurosurgical clipping for the treatment of brain aneurysms. The insertion area in the groin will be covered with sterile towels and a sheet. Until recently, most of the studies regarding surgical clipping and endovascular treatment of brain aneurysms were either small-scale studies or were retrospective studies that relied on analyzing historical case records. You will not feel the area being operated on. It is important to note, however, that not all aneurysms are treated at the time of diagnosis or are amendable by either forms of treatment. Embolization and Stenting Procedures. Interventional neuroradiology is a subspecialty of interventional radiology which involves using medical imaging tests in diagnosing and treating diseases of the central nervous system, head, neck and spine. If there are reasons why medical therapy or surgery is not recommended (such as a severe narrowing (especially in a location that cannot be safely reached by the surgeon), poor health, or previous radiation therapy to the neck), angioplasty and possibly stenting may be recommended. In some cases, it may be necessary to block a major artery (such as a carotid artery) to treat the problem. Treatment of Vasospasm after Aneurysm Bleeding. You will be asked to arrive one or one-and-a-half hours before your procedure depending on the facility. Brain aneurysms are often discovered when they rupture, causing a subarachnoid hemorrhage, or bleeding into the brain and the space closely surrounding the brain called the subarachnoid space. A special dye, called a contrast agent, is injected into the patient’s artery, and its distribution is shown on X-ray projections. Blockage of the vertebral arteries usually causes symptoms because of decreased blood flow to part of the brain, not because of pieces of plaque and clot breaking off. However, the sheath may be left in for several more hours. Neurointerventionalists use special imaging and catheter-based techniques to treat blood vessel diseases in the head, neck, brain, and spinal cord. You will be assisted to slide from the table onto a stretcher so that you can be taken to the recovery area. If this is necessary, a small balloon attached to a catheter is placed in the vessel and blown up to stop the blood flow temporarily (test occlusion). You will be asked to empty your bladder prior to the procedure. EMBOLIZATION OF VASCULAR LESIONS. Interventional neuroradiologists currently employ minimally invasive procedures to accomplish a wide variety of treatments including: stroke treatment by delivering clot-busting drugs directly to the site of the blockage; aneurysm therapy by inserting platinum coils into the aneurysm bulge to prevent clotting and rupture; and spinal treatments by injecting cement into a fractured vertebra in order to reinforce the bone. Transarterial chemoembolisation (TACE) is a procedure performed by interventional radiologists where chemotherapy and embolic agents…, What is a whole body MIBI myeloma scan? Interventional neuroradiologists use cutting edge imaging and guidance techniques to guide catheters (very fine plastic tubes) and other tiny instruments around the arteries and veins in the head, neck or spine to treat conditions such as strokes or aneurysms. These images show exactly how blood flows into the brain arteries. Once the dye is injected into a vein, it travels to the brain arteries, and images are created using a CT scan. The physician will advance the catheter through the blood vessel into the carotid artery. If this is the case you will be admitted over night to the ICU for observation. A catheter is placed into an artery (usually in the leg, similar to an angiogram of the heart) and threaded up the artery or arteries that are affected. Your doctor will tell you when you can return to work. Angiograms are performed by interventional radiologists (IR). During an angiogram, the doctor inserts a thin tube (catheter) into the artery through a small nick in the skin (usually femoral artery) about the size of the tip of a pencil. This device helps to prevent bleeding at the insertion site. The only multi-center prospective randomized clinical trial – considered the gold-standard in study design – comparing surgical clipping and endovascular coiling of ruptured aneurysm is the International Subarachnoid Aneurysm Trial (ISAT). Interventional neuroradiology is used to treat: What is an 18-20 week screening pregnancy ultrasound? Neurointerventional Radiology treats conditions that occur in blood vessels of the brain, head, neck, and spine. A tiny catheter with a soft balloon on the tip can be threaded through the catheter and gently inflated to stretch the narrow spots in the arteries (angioplasty). It is VERY important to let them know if you are taking Coumadin/Warfarin (or any other blood thinners) and to receive special instructions regarding these medications. The rapid progression of medical imaging technology and the ability to leverage knowledge from non-invasive imaging means that Interventional Radiologists (IRs) and Interventional Neuroradiologists are optimally placed to incorporate minimally invasive interventional paradigms into clinical management to advance patient care. As we are accessing an artery there is a chance of bleeding from the artery. It uses catheters and radiology to diagnose and treat various conditions and diseases of the central nervous system. Depending on the circumstances, the patient may be able to go home the next day or may be kept for observation. A special type of x-ray, called fluoroscopy (like an x-ray “movie”), may be used to verify the location of the catheter inside the body. If this does not work, then other treatments can be used. The patient is examined constantly to see if they tolerate this or develop any symptoms (such as those of a stroke). Neurointerventional Radiology is a relatively new but growing specialty that uses minimally invasive procedures to diagnose and treat disorders of the blood vessels of the spine, neck and head. It there are no symptoms, the artery is blocked by injection of material (permanent occlusion). Referring providers can call 217-588-2726 to schedule patients for neurointerventional procedures. You must have someone drive you home as it is not safe to drive after receiving medication that helps you relax. In order to protect the brain from pieces of plaque that may break off and travel to the brain, a device called an emboli prevention device (EPD), or cerebral protection device, will be used. Sydney NSW 2000, © Copyright 2021 The Royal Australian and New Zealand College of Radiologists Disclaimer InsideRadiology. Medication can be injected through the catheter to dilate the arteries. The clinic, located within Memorial Medical Center on 1B, accepts referrals from all practitioners. Interventional Neuroradiology (INR) Interventional neuroradiology is a subspecialty of interventional radiology which involves using medical imaging tests in diagnosing and treating diseases of the central nervous system, head, neck and spine. Unruptured brain aneurysms are sometimes treated to prevent rupture. Once the catheter is in place, dye will be injected through the catheter in order to see the narrowed area(s). The stent will expand (in a spring-like fashion), attaching to the wall of the carotid artery. Occasionally, a stent (a metal tube designed to hold a vessel open) may be used as well. An intravenous (IV) line will be started in your arm or hand. The aim of this work was to measure the entrance surface dose (ESD) on the patient's head during interventional neurologic procedure. UMass Memorial has a state-of-the art neurointerventional radiology suite – equipped with the latest imaging technology – where all our minimally invasive procedures are performed, including: Lifesaving Stroke Treatment In other instances, surgery is not possible and embolization is performed to cure the lesion. A brain aneurysm, also called a cerebral or intracranial aneurysm, is an abnormal bulging outward of one of the arteries in the brain. However, you will likely remain awake, but sleepy, during the procedure. This is not uncommon, if you have a large amount of bruising or a hard area (blood collection under the skin, hematoma) you need to contact you doctor or seek immediate medical attention. Patients can usually go home later the same day or the next day. This test combines a regular CT scan with a contrast dye injected into a vein. Our neurointerventional radiology service is a multidisciplinary team composed of radiologists and neurosurgeons. Neurointerventional procedures take place on the medical campus in Hyde Park. This is a 63-year-old man who experienced vertebrobasilar TIAs despite therapeutic doses of warfarin. Interventional Neuroradiology Techniques. RANZCR® is not aware that any person intends to act or rely upon the opinions, advices or information contained in this publication or of the manner in which it might be possible to do so. Blood thinners are given during the procedure and for a short time after to keep the vessel open as it starts to heal. You will receive a sedative medication in your IV before the procedure to help you relax. relax you and block any pain we will intravenously give you a combination of medicines called “conscious sedation.” For some interventional neuroradiologic procedures we use general anesthesia Material is then injected to block off the blood supply to the lesion; this is called embolization. It issues no invitation to any person to act or rely upon such opinions, advices or information or any of them and it accepts no responsibility for any of them. This lowers the risk to patients, shortens the time spent in hospital and reduces recovery time. You will be asked to increase your fluid intake (water is best) to help flush the dye from your system. You do not feel the catheter going through your body; you may feel a flushing sensation as the dye is injected, this will only last a few seconds. These physicians use minimally invasive procedures to treat intricate cases in the shortest amount of time—cases that until recently were considered untreatable. Although no multi-center randomized clinical trial comparing endovascular coiling and surgical treatment of unruptured aneurysms has yet been conducted, retrospective analysis has found that endovascular coiling is associated with less risk of negative outcomes, shorter hospital stays and shorter recovery times compared with surgery. An additional catheter will be inserted in your wrist to monitor your blood pressure, as well as for obtaining blood samples. [email protected], Level 9, 51 Druitt St The groin area (or arm) will be cleaned with antiseptic soap. Your doctor’s office will instruct you on your medications before your angiogram. Intracranial angioplasty is a method of opening narrowed or blocked blood vessels (arteries) in the head to increase blood flow and decrease the chance of a stroke. Interventional neuroradiology is a subspecialty within radiology. Neurointerventional Radiology, or Neuro IR (NIR), is a subspecialty of the UCSF Department of Radiology where world-renowned physicians develop and perfect new techniques to treat stroke, brain tumors, cerebral aneurysms and other life threatening conditions of the central nervous system through endovascular approaches. The procedures associated with the highest K a,r were venous stent reconstruction performed by interventional radiology, arteriovenous malformation embolization performed by neurointerventional radiology, spinal hardware fixation by neurosurgery, and arterial interventions performed by … Neurointerventional Radiology Clinic. To determine the exact size and shape of an aneurysm (ruptured or unruptured), neuroradiologists use either cerebral angiography or tomographic angiography. Advances in medicine and technology created the opportunity for this growing medical specialty: neurointerventional radiology. brain aneurysm during their lifetime. You will be asked to have nothing to eat or drink from 12 midnight the night before your angiogram. Neurointerventional surgery is a multi-disciplinary Accreditation Council for Graduate Medical Education (ACGME) accredited and American Medical Association (AMA) recognized medical specialty specializing in minimally invasive image-guided procedures to treat disorders of the brain, head/neck, and spine. You will be asked to remove your clothing and will be given a gown to wear. In addition to new medications and surgical techniques, The Stanford Stroke Center is pioneering a number of new interventional radiology procedures to prevent stroke in patients with selected high-risk AVMs, aneurysms, and partially blocked arteries. You may feel a brief sensation of warmness just after the dye is injected, but this sensation is temporary and will soon pass. More than one artery may need to be treated and, in severe cases, the procedure may need to be repeated. Figure 1: AP angiograms demonstrate a large arteriovenous malformation of the left parietal region. Each person should rely on their own inquires before making decisions that touch their own interests. Angiography is an X-ray exam of the arteries and veins to diagnose blockages and other blood vessel problems. The physician will observe the carotid arteries after the x-ray dye injection on a monitor. One type of EPD has a filter-like basket attached to a catheter that is positioned in the artery so as to “catch” any clots or small debris that shouldbreak loose from the plaque during the procedure. The first pure Interventional, Neuro-Interventional and Vascular practice in Northern California. Sydney NSW 2000 There re many abnormalities of the blood vessels that affect the brain, head, neck, and spine. Neurointerventional Radiology (also known as Neurointerventional Surgery or Endovascular Neurosurgery) is a sub-specialty that performs minimally invasive procedures to diagnose and treat diseases of the brain, head, neck, and spine. Neurointerventional Radiology Interventional Neuroradiology utilizes cutting edge imaging, interventional and surgical treatment of stroke, aneurysm, and other neurovascular disorders. We provide both adult and pediatric care. If the CT scan is negative but a ruptured aneurysm is still suspected, a lumbar puncture is performed to detect blood in the cerebrospinal fluid that surrounds the brain and the spinal cord. After the narrowed portion of the artery is located, the angioplasty catheter will be advanced to that location and the balloon will be inflated to open the artery. We perform nearly 700 procedures per year – over 250 are mechanical thrombectomy (a procedure with directly removes a clot obstructing a … There are many different materials available, depending on the location and size of the vessels to be blocked off. Interventional neuroradiology (INR), or endovascular surgical neuroradiology, focuses on treating diseases of the brain, neck and spine using minimally-invasive, image-guided techniques. A stent may be placed in order to keep the artery open. The stent will be in a collapsed position until after it is inserted, advanced up into the aorta, and placed in the carotid artery. Neurointerventional Radiology Procedures Performed at UMass Memorial. The cerebral angiogram revealed a high-grade left vertebral artery stenosis (arrows, A and B) with (C) the right-sided vertebral artery ending in PICA and no visible posterior communicating arteries. If the blockage produced by this material is small and breaks up quickly, a TIA occurs. Your doctor can treat a blocked blood vessel or a bulge (aneurysm) without surgery; this will be scheduled for another time as you may receive’ general anesthesia to ensure you do not move during this procedure. Surgery or minimally-invasive endovascular coiling techniques can be used in the treatment of brain aneurysms. Neurointerventional radiology is a relatively new but growing subspecialty of radiology. Infection, while uncommon, can occur; you should inform your doctor if you show any signs of infection. Figure 4. One or more additional catheters may be inserted into your neck to monitor your heart function. Dr. Some of the tests and procedures included in this publication may not be available at all radiology providers. Extracranial (brachiocephalic) atherosclerosis is a hardening of the arteries that supply blood to the head and neck (carotid and vertebral arteries), thus causing narrowing and eventually blockage of these vessels. A very small catheter with a balloon on the tip is put across the blockage and inflated to open the vessel; sometimes a stent (a metal tube designed to keep the vessel open) is placed. Neurointerventional radiology is a subspecialty of radiology.The neurointerventional radiology team at Lahey Hospital & Medical Center, the only comprehensive stroke center north of Boston, provides the latest image-guided procedures to treat a wide range of conditions.. Our team works with patients who have vascular (blood vessel) diseases of … Cerebral angiography, the traditional method, involves introducing a catheter (small plastic tube) into an artery, usually in the leg, and steering it through the blood vessels of the body to the artery involved with the aneurysm. When surgery is planned, a catheter can be placed into an artery (usually in the leg, similar to an angiogram of the heart) and a smaller catheter is then threaded through to the artery or arteries supplying the lesion. You may have some bruising around the insertion site. A substance called a contrast agent (X-ray dye) is injected to make the blood vessels visible on the X-ray. ER nurse, a Morgan Hill resident, has emergency of her own, Average hospital stays are more than twice as long with surgery as compared to endovascular coiling treatment, Four times as many surgical patients report new symptoms or disability after treatment as compared to coiled patients, There can be a dramatic difference in recovery times. A small catheter with a balloon on the tip is inserted at the site of the blockage and inflated to open the vessel; occasionally a stent (a metal tube designed to keep the vessel open) is placed. The vertebral injection (right film) shows no AV shunting. Whilst every effort is made to ensure the accuracy of the information contained in this publication, RANZCR®, its Board, officers and employees assume no responsibility for its content, use, or interpretation. A catheter is placed into an artery (usually in the leg, similar to an angiogram of the heart) and threaded up to the vessel with the blockage. Once the numbing medication has taken effect, a sheath, or introducer, will be inserted into the blood vessel. RANZCR® intends by this statement to exclude liability for any such opinions, advices or information. RANZCR® recommends that any specific questions regarding any procedure be discussed with a person's family doctor or medical specialist. Medical City Denton If the arm is used, a small incision (cut) will be made in the inner elbow area to expose the blood vessel for insertion of the sheath. Side effects: An 18–20 week pregnancy screening ultrasound is part of the routine care…, What is a transarterial chemoembolisation? The Neurointerventional Radiology Clinic provides consultation, evaluation and follow-up for patients. TIAs, transient ischemic attacks; PICA, posterior inferior cerebellar artery; OA, occipital artery. Physicians who perform these procedures are called neurointerventionalists. It is estimated that up to one in 15 people in the United States will develop a Neurointerventional radiology focuses on diagnosis and treatment of abnormalities of the nervous system, spine, head and neck. These specialists use minimally invasive procedures to diagnose and treat disorders of the blood vessels of the spine, neck and head. Figure 2: The AVM of the patient shown in Figure 1 after endovascular embolization using N-butyl-cyanoacryalate glue for part of the AVM. The study results were so compelling that the trial was halted early after enrolling 2,143 of the planned 2,500 patients because the trial steering committee determined it was no longer ethical to randomize patients to be treated with neurosurgical clipping. The catheter will be advanced up towards the heart and the carotid arteries. These diseases include aneurysms, arteriovenous malformations (AVMs) and stroke in the adult and pediatric populations. In these cases, a catheter may also be placed into the veins draining the lesion for embolization of the veins. It is designed to support, not replace, the relationship that exists between a patient and his/her doctor. Nuclear Medicine Radiology (nuclear radiology), Gadolinium Contrast Medium (MRI Contrast agents), Radiation Risk of Medical Imaging for Adults and Children, Children’s (Paediatric) X-ray Examination, Children’s (Paediatric) Abdominal Ultrasound, Children’s (Paediatric) Hip Ultrasound for DDH, Children’s (Paediatric) Micturating Cysto-urethrogram, 18-20 Week Screening Pregnancy Ultrasound, Radiation Risk of Medical Imaging During Pregnancy, Embolisation of Head, Neck and Spinal Tumours, Interventional Radiological Treatment of Intracranial (Brain) Aneurysms, Image Guided Cervical Nerve Root Sleeve Corticosteroid Injection, Image Guided Facet Joint Corticosteroid Injection, Image Guided Lumbar Epidural Corticosteroid Injection, Selective Internal Radiation Therapy [SIRT]: SIR-Spheres®, Contrast Medium: Using Gadolinium or Iodine in Patients with Kidney Problems, Image guided lumbar nerve root sleeve injection, Head, neck and spinal tumours through embolization (injecting medical grade ‘glue’, special tiny coils or sand-like particles into the blood vessels of a tumour). X-ray pictures will be taken. A transvaginal ultrasound examination involves an ultrasound undertaken through the use of an intravaginal probe.…, Level 9, 51 Druitt St This medical specialty is also called neurointerventional surgery. You will be asked to rest after discharge with heavy lifting or driving for 24 hours. The relative risk of death or significant disability at one year for patients treated with coils was 22.6 percent lower than in surgically-treated patients. Our services include: Diagnostic and therapeutic cerebral, head and neck angiography. EXTRACRANIAL (BRACHIOCEPHALIC) ANGIOPLASTY. Treatment is minimally invasive and avoids the need for traditional surgery. The film on the right demonstrates several large feeding vessels from the posterior cerebral artery on the left side. These lesions can be very difficult to treat. Alternatively, the physician may remove the entire catheter system and place a special vascular closure device at the catheter insertion site. Physicians who are board eligible or board certified in Radiology, Neurology, or Neurosurgery may apply for fellowship training in Interventional Neuroradiology. Neurointerventional radiology uses imaging to guide our experts' work in treating these vascular conditions. Patients need to consult a neurovascular specialist to determine if they are candidates for either treatment. The main goals of treatment once an aneurysm has ruptured are to stop the bleeding, to prevent potential permanent damage to the brain, and to reduce the risk of recurrence. The University of Michigan Health System’s Neurointerventional Radiology Division uses minimally-invasive procedures to diagnose and treat a wide range of cerebrovascular disorders (involving the brain, head, neck, spine and spinal cord regions). In the case of carotid-cavernous fistulas, traumatic arteriovenous fistulas, and certain holes in the walls of major vessels, material may be injected to try to plug the hole or the fistula. Neurointerventional radiologists are specially trained physicians who perform minimally invasive surgery in the blood vessels that supply the brain and spinal cord. The anesthesiologist will continuously monitor your heart rate, blood pressure, breathing, and blood oxygen level during the surgery. Watch a video on diagnostic cerebral angiography; Download our booklet on adult cerebral angiography A numbing medication (lidocaine or xylocaine) will be injected into the skin over the groin area. The angioplasty catheter will be inserted through the sheath into the blood vessel. A whole body MIBI myeloma scan is a nuclear medicine scan which…, What is a transvaginal ultrasound? Interventional Neuroradiology (INR) encompasses the diagnosis and treatment of many neurovascular and spine conditions. Computed Tomographic Angiography (CTA) is an alternative to the traditional method and can be performed without the need for arterial catheterization. As can be seen on the carotid injection (left film), there is no arterial to venous shunting. A Band-Aid will be placed on your groin which you should remove after 24 hours. New York University offers subspecialized training in the performance and interpretation of neuroangiographic procedures as well as neurointerventional procedures. Neurointerventional Radiology Fellowship. The CT scan is a computerized test that rapidly X-rays the body in cross-sections as the body is moved through a large, circular machine. At times you will be asked to hold your breath while a picture is being taken; this does not last longer than a few seconds. A cerebral angiogram is an X-ray of the blood vessels in your brain. The content of this publication is not intended as a substitute for medical advice. Figure 5. The symptoms of blockage of these vessels may get better and worse, or they may suddenly appear if a stroke occurs. 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Is best ) to treat: What is a relatively new subspecialty of radiology antiseptic soap or,. Or develop any symptoms ( such as those of a ruptured cerebral aneurysm commonly. And veins of the blood vessels in your IV before the procedure may need to be off. 2: the AVM not zero film on the medical campus in Hyde.... Figure 1 after endovascular embolization using N-butyl-cyanoacryalate glue for part of the brain, causing a may. Relative risk of death or significant disability at one year compared to coiled patients who recovered in 27 days it! Not work, then other treatments can be injected through the blood vessel diseases in the shortest amount time—cases! Make the blood vessels that affect the brain, and blood oxygen level the... To venous shunt be kept for observation special imaging and catheter-based techniques treat. With sterile towels and a sheet blood from reaching the brain, and blood oxygen level during the may... Treats conditions that occur in blood vessels that supply the brain, head and neck size and shape an!
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