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Aortic Valve Repair
Aortic valve repair or aortic valve reconstruction is the reconstruction of both form and function of a dysfunctional aortic valve. Most frequently it is used for the treatment of aortic regurgitation. It can also become necessary for the treatment of aortic aneurysm, less frequently for congenital aortic stenosis. Background An aortic valve repair will realistically be possible in the absence of calcification or shrinking (retraction) of the aortic valve. Thus, congenital aortic stenosis may be treated by aortic valve repair.Schäfers HJ, et al. Bicuspidization of the unicuspid aortic valve: a new reconstructive approach. Ann Thorac Surg. 2008 Jun;85(6):2012-8. In acquired aortic stenosis valve replacement will be the only realistic option. In most instances, aortic valve repair will be performed for aortic regurgitation (insufficiency). Aortic valve repair may also be performed in the treatment of aortic aneurysm or aortic dissection if either aneurysm or dissection involves ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cardiology
Cardiology () is a branch of medicine that deals with disorders of the heart and the cardiovascular system. The field includes medical diagnosis and treatment of congenital heart defects, coronary artery disease, heart failure, valvular heart disease and electrophysiology. Physicians who specialize in this field of medicine are called cardiologists, a specialty of internal medicine. Pediatric cardiologists are pediatricians who specialize in cardiology. Physicians who specialize in cardiac surgery are called cardiothoracic surgeons or cardiac surgeons, a specialty of general surgery. Specializations All cardiologists study the disorders of the heart, but the study of adult and child heart disorders each require different training pathways. Therefore, an adult cardiologist (often simply called "cardiologist") is inadequately trained to take care of children, and pediatric cardiologists are not trained to treat adult heart disease. Surgical aspects are not included in cardiology ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hans-Joachim Schäfers
Hans-Joachim Schäfers (born 1957) is a German surgeon, as well as cardiac, thoracic, and vascular surgeon and university professor. He is director of the department of Thoracic and Cardiovascular Surgery at the Saarland University Medical Center in Homburg/Saar, Germany. He is known for his activities in aortic valve repair, aortic surgery, and pulmonary endarterectomy. Biography Hans-Joachim Schäfers went to medical school from 1976 to 1982 at the University of Essen. He received his doctoral title in 1982 magna cum laude. After his military service he started his surgical training at the Hannover Medical School (Medizinische Hochschule Hannover). He added a 1-year clinical fellowship at the Toronto General Hospital, Department of Thoracic Surgery of the University of Toronto to study lung transplantation. In 1991 he was appointed staff surgeon in the Department of Thoracic and Cardiovascular Surgery at the Hannover Medical School. He achieved his habilitation in 1992. In 1 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mitral Valve
The mitral valve (), also known as the bicuspid valve or left atrioventricular valve, is one of the four heart valves. It has two cusps or flaps and lies between the left atrium and the left ventricle of the heart. The heart valves are all one-way valves allowing blood flow in just one direction. The mitral valve and the tricuspid valve are known as the atrioventricular valves because they lie between the atria and the ventricles. In normal conditions, blood flows through an open mitral valve during diastole with contraction of the left atrium, and the mitral valve closes during systole with contraction of the left ventricle. The valve opens and closes because of pressure differences, opening when there is greater pressure in the left atrium than ventricle and closing when there is greater pressure in the left ventricle than atrium. In abnormal conditions, blood may flow backward through the valve ( mitral regurgitation) or the mitral valve may be narrowed (mitral stenosis). Rh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Prostheses
In medicine, a prosthesis (plural: prostheses; from grc, πρόσθεσις, prósthesis, addition, application, attachment), or a prosthetic implant, is an artificial device that replaces a missing body part, which may be lost through trauma, disease, or a condition present at birth (congenital disorder). Prostheses are intended to restore the normal functions of the missing body part. Amputee rehabilitation is primarily coordinated by a physiatrist as part of an inter-disciplinary team consisting of physiatrists, prosthetists, nurses, physical therapists, and occupational therapists. Prostheses can be created by hand or with computer-aided design (CAD), a software interface that helps creators design and analyze the creation with computer-generated 2-D and 3-D graphics as well as analysis and optimization tools. Types A person's prosthesis should be designed and assembled according to the person's appearance and functional needs. For instance, a person may need a transra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lowell Edwards
Lowell may refer to: Places United States * Lowell, Arkansas * Lowell, California * Lowell, Florida * Lowell, Idaho * Lowell, Indiana * Lowell, Bartholomew County, Indiana * Lowell, Maine * Lowell, Massachusetts ** Lowell National Historical Park ** Lowell (MBTA station) ** Lowell Ordnance Plant * Lowell, Michigan * Lowell, North Carolina * Lowell, Washington County, Ohio * Lowell, Seneca County, Ohio * Lowell, Oregon * Lowell, Vermont, a New England town ** Lowell (CDP), Vermont, the main village in the town * Lowell, West Virginia * Lowell (town), Wisconsin ** Lowell, Wisconsin, a village within the town of Lowell * Lowell Hill, California * Lowell Point, Alaska *Lowell Township (other) Other countries * Lowell glacier, near the Alsek River, Canada Elsewhere * Lowell (lunar crater) * Lowell (Martian crater) Institutions in the United States Arizona * Lowell Observatory, astronomical non-profit research institute, Flagstaff California * Lowell High Scho ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Albert Starr
Albert Starr (born June 1, 1926, in New York, New York) is an American cardiovascular surgeon, inventor of the Starr heart valve. Starr resides and practices in the Portland, Oregon area and is special adviser to OHSU Dean of Medicine Mark Richardson and OHSU President Joseph Robertson (OHSU) at Oregon Health and Science University. He received his B.A. degree from Columbia College (now Columbia University) in 1946 and his M.D. degree from Columbia College of Physicians and Surgeons in 1949. He then went on to do his internship at Johns Hopkins Hospital and his residency in general and thoracic surgery at the Bellevue and Presbyterian Hospitals of Columbia University. He was an assistant in surgeon at Columbia University until 1957, when he moved to Oregon—having been enticed, in part, by the Oregon Heart Association's promises to help fund his research and to take him salmon fishing. There he worked for the Crippled Children's Division at the University of Oregon Medical Sch ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carl Hellmuth Hertz
Carl Hellmuth Hertz (also written Carl Helmut Hertz, October 15, 1920 – April 29, 1990) was a German physicist known primarily for being involved in the development of inkjet technology and ultrasound technology. He was the son of Gustav Ludwig Hertz and great nephew of Heinrich Hertz. Biography Hellmuth Hertz was born October 15, 1920 in Berlin, Germany. His father was Gustav Hertz who, along with James Franck, was awarded the Nobel Prize in Physics 1925 for their experiments on inelastic electron collisions in gases. Gustav Hertz's uncle was in turn Heinrich Hertz, who first conclusively proved the existence of the electromagnetic waves. Hellmuth graduated from the elite Schule Schloss Salem boarding school in 1939 at the age of 19 years with the highest grade in mathematics and physics. The same year, he was conscripted into the German Army (Wehrmacht) and served as a soldier for Nazi Germany in World War II. In 1943 he was captured in the North African theatre by US ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Inge Edler
Inge Gudmar Edler (17 March 1911 – 6 March 2001) was a Swedish cardiologist, who in collaboration with Carl Hellmuth Hertz developed medical ultrasonography and echocardiography. Edler and Hertz shared the 1977 Lasker-DeBakey Clinical Medical Research Award Lasker-DeBakey Clinical Medical Research Award is one of four annual awards presented by the Lasker Foundation. The Lasker-DeBakey award is given to honor outstanding work for the understanding, diagnosis, prevention, treatment, and cure of diseas ... for this achievement. Early life and education Edler was born on 17 March 1911 in Burlöv, Malmöhus County, Sweden. His parents were Carl and Sophia Edler and primary school teachers. In childhood, he was interested in technology, nature, and geography. Edler graduated from high school, Hegre Allmanna Laroverket, in 1930. Edler's older sister was a dentist and he initially intended to pursue a career in this field. As it was too late in the year to enroll in dental school, in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Echocardiography
An echocardiography, echocardiogram, cardiac echo or simply an echo, is an ultrasound of the heart. It is a type of medical imaging of the heart, using standard ultrasound or Doppler ultrasound. Echocardiography has become routinely used in the diagnosis, management, and follow-up of patients with any suspected or known heart diseases. It is one of the most widely used diagnostic imaging modalities in cardiology. It can provide a wealth of helpful information, including the size and shape of the heart (internal chamber size quantification), pumping capacity, location and extent of any tissue damage, and assessment of valves. An echocardiogram can also give physicians other estimates of heart function, such as a calculation of the cardiac output, ejection fraction, and diastolic function (how well the heart relaxes). Echocardiography is an important tool in assessing wall motion abnormality in patients with suspected cardiac disease. It is a tool which helps in reaching an ear ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fibrous Rings Of Heart
In cardiology, the cardiac skeleton, also known as the fibrous skeleton of the heart, is a high-density homogeneous structure of connective tissue that forms and anchors the valves of the heart, and influences the forces exerted by and through them. The cardiac skeleton separates and partitions the atria (the smaller, upper two chambers) from the ventricles (the larger, lower two chambers). The unique matrix of connective tissue within the cardiac skeleton isolates electrical influence within these defined chambers. In normal anatomy, there is only one conduit for electrical conduction from the upper chambers to the lower chambers, known as the atrioventricular node. The physiologic cardiac skeleton forms a firewall governing autonomic/electrical influence until bordering the bundle of His which further governs autonomic flow to the bundle branches of the ventricles. Understood as such, the cardiac skeleton efficiently centers and robustly funnels electrical energy from the a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dwight Harken
Dwight Emary Harken (1910–1993) was an American surgeon. He was an innovator in heart surgery and introduced the concept of the intensive care unit. Life Dwight Harken was born in Osceola, Iowa. He received his Bachelor's and Medical degrees from Harvard. While working at the Bellevue hospital in New York, he was awarded a fellowship to London to continue his studies in medicine. During the Second World War, Harken served in the U.S. Army Medical Corps in London as a surgeon and had previously operated alongside Tudor Edwards. To treat his patients, he found a way to take out shrapnel safely from the heart by cutting into the wall of a beating heart, then inserting a finger to locate and remove the shrapnel. With this method, he became the first person to have repeated success in heart operation after removing shrapnel from the hearts of 134 soldiers during World War II without a single fatality. McRae, D. (2007-08-07). Every Second Counts: The Race to Transplant the First Huma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
