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Pumphead Syndrome
Postperfusion syndrome, also known as "pumphead", is a constellation of neurocognitive impairments attributed to cardiopulmonary bypass (CPB) during cardiac surgery. Symptoms of postperfusion syndrome are subtle and include defects associated with attention, concentration, short-term memory, fine motor function, and speed of mental and motor responses. Studies have shown a high incidence of neurocognitive deficit soon after surgery, but the deficits are often transient with no permanent neurological impairment. Evidence A study by Newman et al. at Duke University Medical Center showed an increased incidence of cognitive decline after coronary artery bypass surgery (CABG), both immediately (53 percent at discharge from hospital) and over time (36 percent six weeks, 24 percent at six months, and 42 percent at five years). This study shows an association of neurocognitive decline with CABG, but does not show causation; the study lacks a control group and is considered level II ...
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Neurocognitive
Neurocognitive functions are cognitive functions closely linked to the function of particular areas, neural pathways, or cortical networks in the brain, ultimately served by the substrate of the brain's neurological matrix (i.e. at the cellular and molecular level). Therefore, their understanding is closely linked to the practice of neuropsychology and cognitive neuroscience, two disciplines that broadly seek to understand how the structure and function of the brain relate to cognition and behaviour. A neurocognitive deficit is a reduction or impairment of cognitive function in one of these areas, but particularly when physical changes can be seen to have occurred in the brain, such as aging related physiological changes or after neurological illness, mental illness, drug use, or brain injury. A clinical neuropsychologist may specialise in using neuropsychological tests to detect and understand such deficits, and may be involved in the rehabilitation of an affected person. The ...
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Coronary Artery Disease
Coronary artery disease (CAD), also called coronary heart disease (CHD), ischemic heart disease (IHD), myocardial ischemia, or simply heart disease, involves the reduction of blood flow to the heart muscle due to build-up of atherosclerotic plaque An atheroma, or atheromatous plaque, is an abnormal and reversible accumulation of material in the inner layer of an arterial wall. The material consists of mostly macrophage cells, or debris, containing lipids, calcium and a variable amount ... in the arteries of the heart. It is the most common of the cardiovascular diseases. Types include stable angina, unstable angina, myocardial infarction, and sudden cardiac death. A common symptom is chest pain or discomfort which may travel into the shoulder, arm, back, neck, or jaw. Occasionally it may feel like heartburn. Usually symptoms occur with exercise or emotional Stress (psychological), stress, last less than a few minutes, and improve with rest. Shortness of breath may also o ...
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Neurological Disorders
A neurological disorder is any disorder of the nervous system. Structural, biochemical or electrical abnormalities in the brain, spinal cord or other nerves can result in a range of symptoms. Examples of symptoms include paralysis, muscle weakness, poor coordination, loss of sensation, seizures, confusion, pain and altered levels of consciousness. There are many recognized neurological disorders, some relatively common, but many rare. They may be assessed by neurological examination, and studied and treated within the specialities of neurology and clinical neuropsychology. Interventions foneurological disordersinclude preventive measures, lifestyle changes, physiotherapy or other therapy, neurorehabilitation, pain management, medication, operations performed by neurosurgeons or a specific diet. The World Health Organization estimated in 2006 that neurological disorders and their sequelae (direct consequences) affect as many as one billion people worldwide, and identified heal ...
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Vasoplegic Syndrome
Vasoplegic syndrome (VPS) is a postperfusion syndrome characterized by low systemic vascular resistance and a high cardiac output. Causes VPS occurs more frequently after on pump CABG surgery versus off pump CABG surgery. Hypothermia during surgery may also increase ones risk of developing VPS post operatively. Diagnosis Definition Vasoplegic syndrome is defined as low systemic vascular resistance Vascular resistance is the resistance that must be overcome to push blood through the circulatory system and create flow. The resistance offered by the systemic circulation is known as the systemic vascular resistance (SVR) or may sometimes be cal ... (SVR index 2.5 L/min/m2) within the first 4 postoperative hours. Treatment There is some evidence to support the use of methylene blue in the treatment of this condition. Epidemiology One case series reports a rate of 1 in 120 cases. References {{Medicine, state=collapsed Cardiac surgery Syndromes ...
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Post-chemotherapy Cognitive Impairment
Post-chemotherapy cognitive impairment (PCCI) (also known in the scientific community as "CRCIs or Chemotherapy-Related Cognitive Impairments" and in lay terms as chemotherapy-induced cognitive dysfunction or impairment, chemo brain, or chemo fog) describes the cognitive impairment that can result from chemotherapy treatment. Approximately 20 to 30% of people who undergo chemotherapy experience some level of post-chemotherapy cognitive impairment. The phenomenon first came to light because of the large number of breast cancer survivors who complained of changes in memory, fluency, and other cognitive abilities that impeded their ability to function as they had pre-chemotherapy. Although the causes and existence of post-chemotherapy cognitive impairment have been a subject of debate, recent studies have confirmed that post-chemotherapy cognitive impairment is a real, measurable side effect of chemotherapy that appears in some patients. While any cancer patient may experience tempor ...
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Postoperative Cognitive Dysfunction
Postoperative cognitive dysfunction (POCD) is a decline in cognition, cognitive function (especially in memory and executive functions) that may last from 1–12 months after surgery, or longer. In some cases, this disorder may persist for several years after major surgery. POCD is distinct from emergence delirium. Its causes are under investigation and occurs commonly in older patients and those with pre-existing cognitive impairment. The causes of POCD are not understood. It does not appear to be caused by lack of oxygen or impaired blood flow to the brain and is equally likely under regional and general anesthesia. It may be mediated by the body's inflammation, inflammatory response to surgery. Causes The body's inflammation, inflammatory response to surgery likely plays an important role, at least in elderly patients. Various research initiatives during recent years have evaluated whether actions taken before, during and after surgery can lessen the possible deleterious effects ...
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Heparin-coated Blood Oxygenator
An oxygenator is a medical device that is capable of exchanging oxygen and carbon dioxide in the blood of human patient during surgical procedures that may necessitate the interruption or cessation of blood flow in the body, a critical organ or great blood vessel. These organs can be the heart, lungs or liver, while the great vessels can be the aorta, pulmonary artery, pulmonary veins or vena cava. Usage An oxygenator is typically utilized by a perfusionist in cardiac surgery in conjunction with the heart-lung machine. However, oxygenators can also be utilized in extracorporeal membrane oxygenation in neonatal intensive care units by nurses. For most cardiac operations such as coronary artery bypass grafting, the cardiopulmonary bypass is performed using a heart-lung machine (or cardiopulmonary bypass machine). The heart-lung machine serves to replace the work of the heart during the open bypass surgery. The machine replaces both the heart's pumping action and the lungs' gas ...
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Post-traumatic Growth
Post-traumatic refers to conditions following a physical trauma, i.e. an injury or damage caused by physical harm, or a psychological trauma: * ''Post Traumatic'' (EP), album by American musician Mike Shinoda * ''Post Traumatic'', album by American musician Mike Shinoda * Post-concussion syndrome * Post-traumatic abortion syndrome * Post-traumatic amnesia * Post-traumatic embitterment syndrome * Post-traumatic epilepsy * Post-traumatic growth * Post-traumatic punctate intraepidermal hemorrhage * Post-traumatic seizure * Post-traumatic stress disorder ** Complex post-traumatic stress disorder Complex post-traumatic stress disorder (C-PTSD; also known as complex trauma disorder) is a psychological disorder that is theorized to develop in response to exposure to a series of traumatic events in a context in which the individual perceive ... See also * Post Traumatic Slave Syndrome {{dab ...
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Andrew Pike
Dr. Andrew Pike, OAM (born 1 January 1946) is an Australian film historian, film distributor and exhibitor, and documentary producer and director. Pike formed Ronin Films, an Australian film distribution company, with his first wife, Dr Merrilyn Fitzpatrick, in 1974. With Ross Cooper, he co-authored the book, ''Reference Guide to Australian Films 1906–1969'' and has produced and directed many documentaries since 1982. Pike has been honoured with numerous awards including a plaque on the ACT Honour Walk in Canberra City, appointed of the Order of Australia (OAM) and an Honorary Doctorate from the University of Canberra. Personal life Pike was born in Adelaide, South Australia. He moved to Canberra in 1963 to obtain a B.A. (Hons) and M.A. in Australian history at the Australian National University. Career After completing an M.A. on the history of Australian cinema at the Australian National University in Canberra, Pike worked as a cinema manager. During this time, he wr ...
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Cerebrovascular
Cerebrovascular disease includes a variety of medical Medicine is the science and practice of caring for a patient, managing the diagnosis, prognosis, prevention, treatment, palliation of their injury or disease, and promoting their health. Medicine encompasses a variety of health care practic ... conditions that affect the blood vessels of the brain and the cerebral circulation. Arteries supplying oxygen and nutrients to the brain are often Angiopathy, damaged or deformed in these disorders. The most common presentation of cerebrovascular disease is an ischemic stroke or Transient ischemic attack, mini-stroke and sometimes a hemorrhagic stroke. Hypertension (high blood pressure) is the most important contributing risk factor for stroke and cerebrovascular diseases as it can change the structure of blood vessels and result in atherosclerosis. Atherosclerosis narrows blood vessels in the brain, resulting in decreased cerebral perfusion. Other risk factors that contribute to ...
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Percutaneous Aortic Valve Replacement
Percutaneous aortic valve replacement (PAVR), also known as percutaneous aortic valve implantation (PAVI), transcatheter aortic valve implantation (TAVI) or transcatheter aortic valve replacement (TAVR), is the replacement of the aortic valve of the heart through the blood vessels (as opposed to valve replacement by open heart surgery, surgical aortic valve replacement, SAVR). The replacement valve is delivered via one of several access methods: transfemoral (in the upper leg), transapical (through the wall of the heart), subclavian (beneath the collar bone), direct aortic (through a minimally invasive surgical incision into the aorta), and transcaval (from a temporary hole in the aorta near the navel through a vein in the upper leg), among others. Severe symptomatic aortic stenosis carries a poor prognosis. At present there is no treatment via medication, making the timing of aortic valve replacement the most important decision to make for these patients. Until recently, surgi ...
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