|
| |
| | Aortic valve stenosis - Wikipedia, the free encyclopedia |
 | | Aortic valve stenosis (AS) is a heart condition caused by the incomplete opening of the aortic valve. | | | The Gorlin equation states that the aortic valve area is equal to the flow through the aortic valve during ventricular systole divided by the systolic pressure gradient across the valve times a constant. | | | The Gorlin equation is related to flow across the valve. |
|
http://en.wikipedia.org/wiki/Aortic_valve_stenosis
(1665 words)
|
|
| |
| | Aortic valve - Wikipedia, the free encyclopedia |
| | A pulmonary homograft (a pulmonary valve taken from a cadaver) is then used to replace the patients own pulmonary valve. | | | This condition is often undiagnosed until later in life when the person develops symptomatic aortic stenosis. | | | The Ross procedure involves going to surgery to have the aortic valve removed and replacing it with the patient's own pulmonary valve. |
|
http://en.wikipedia.org/wiki/Aortic_valve
(370 words)
|
|
| |
| | AORTIC VALVE REPLACEMENT |
| | Aortic valve replacement is an "open heart" procedure performed by cardithoracic surgeons for treatment of narrowing (stenosis) or leakage (regurgitation) of the aortic valve. | | | The options in this category include "xenograft" valves made from animal tissues (most often pig aortic valves), "homograft" or "allograft" valves retrieved from human cadavers, and "pulmonary autograft" valves moved from the patient's pulmonary artery on the right side of the heart to the aortic position on the left. | | | After successful aortic valve replacement, patients can expect to return to their preoperative condition or better. |
|
http://www.sts.org/doc/3620
(1497 words)
|
|
| |
| | Aortic Valve Disease |
| | Aortic stenosis, for the purposes of this chapter, refers to obstruction of flow at the level of the aortic valve, and will not include the sub- and supravalvular forms of this disease. | | | The etiology of the regurgitation as with aortic stenosis, can be further defined based on the anatomy of the valve and aortic root, and the disease process affecting the valve. | | | A prosthetic heart valve commits a patient to continued infective endocarditis prophylaxis, regular cardiac follow-up, and often to continued medical therapy, including anticoagulation with warfarin for those with mechanical prostheses. |
|
http://www.clevelandclinicmeded.com/diseasemanagement/cardiology/aortic_valve/aortic_valve.htm
(3488 words)
|
|
| |
| | Aortic Valve Surgery: Ross Procedure |
| | The Ross Procedure is a type of specialized aortic valve surgery where the patient's diseased aortic valve is replaced with his or her own pulmonary valve. | | | This is especially important for women of child bearing age needing aortic valve replacement, as anticoagulation is contraindicated in pregnancy. | | | This pulmonary segment will later be placed in the aortic position replacing the diseased aortic valve. |
|
http://www.cts.usc.edu/rossprocedure.html
(248 words)
|
|
| |
| | eMedicine - Aortic Valve, Bicuspid : Article by Edward J Bayne, MD |
| | Inheritance: Although bicuspid aortic valve is generally sporadic, familial clusters have been identified, with incidence as high as 10-17% in first-degree relatives of probands. | | | A variety of maneuvers may be helpful in auscultation, including having the patient perform an isometric handgrip, having patients lean forward in a seated position (to bring the aortic area closer to the chest wall), and having patients hold their breath in expiration (also decreases the distance between the stethoscope and the left ventricle). | | | Because the bicuspid valve may be entirely silent during infancy, childhood, and adolescence, these incidence figures are not generally included in the overall incidence of congenital heart disease. |
|
http://www.emedicine.com/ped/topic2486.htm
(4684 words)
|
|
| |
| | Aortic valve stenosis AHealthyMe.com |
| | The valve can be opened without surgery by using a balloon catheter, but this is often a temporary solution. | | | When the valve narrows, as it does with stenosis, blood flow is impeded. | | | Because it is more difficult for blood to flow through the valve, there is increased strain on the heart. |
|
http://www.ahealthyme.com/article/gale/100084247
(733 words)
|
|
| |
| | Brigham and Women's Hospital |
| | Minimally invasive aortic valve replacement is not as widely performed as the more traditional form of surgery, which requires the patient to undergo a complete sternotomy in order to access the heart. | | | The webcast, which is the third in a series, is intended to educate medical students, cardiac surgeons, and the general public about the latest minimally invasive techniques now available for such a procedure. | | | However, the less-invasive form of the surgery is gaining popularity among cardiothoracic surgeons as technology improves and the benefits to the patients increase. |
|
http://www.or-live.com/BrighamandWomens/1127
(631 words)
|
|
| |
| | Aortic Valve Replacement with a Homograft Valve -- Experts' Techniques -- CTSNet |
| | This monofilament suture is chosen because of needle strength and because the suture loops slide easily without tendency to cut through the allograft tissue especially in the region of the septal myocardium. | | | "Aortic valve replacement with cryopreserved aortic allograft: ten-year experience." J Thorac Cardiovasc Surg, 1998;115:371-80. | | | This suture is placed through the graft septal muscle below the appropriate commissure and then through the host aortic outflow tract below the medial commissure between the right and left coronary sinuses. |
|
http://www.ctsnet.org/doc/2383
(2021 words)
|
|
| |
| | MedlinePlus Medical Encyclopedia: Aortic insufficiency |
| | Aortic insufficiency can result from any condition that weakens the aortic valve. | | | Notify your health care provider or dentist about any history of heart valve disease before treatment for any condition. | | | An ECG test or chest X-ray may show left ventriclar enlargement. |
|
http://www.nlm.nih.gov/medlineplus/ency/article/000179.htm
(683 words)
|
|
| |
| | aortic valve replacment |
| | The Ross procedure transplants the patients own pulmonic valve to the aortic position and places a tissue valve in the pulmonic position. | | | I will be having surgery in about a month to replace my bicuspid arotic valve. | | | I have come to terms with the fact I need surgery, and am leaning toward a mechanical valve so I don't need surgery again. |
|
http://www.medhelp.org/forums/cardio/messages/30251.html
(631 words)
|
|
| |
| | Aortic Valve. |
| | Minimally invasive surgical replacement of the aortic valve is safe, assuming that you have a surgeon experienced with this technique. | | | Homograft placement would be very tricky with a minimally invasive approach, as it involves aortic root surgery as well as valve surgery. | | | How can one weigh the risk of lifetime anti-coagulation therapy with the mechanical valve against the risk of reoperation with the homograft. |
|
http://www.medhelp.org/forums/cardio/messages/31557.html
(731 words)
|
|
| |
| | Aortic Valve Stenosis |
| | Rarely, these valve problems may occur in infancy, such as poor blood flow, anemia, and heart failure. | | | Severe blockage may cause chest pain or feeling a loss of consciousness with activity. | | | If the defect causes life-threatening heart failure in infancy, immediate surgery to repair the valve will be necessary. |
|
http://www.csmc.edu/5801.html
(419 words)
|
|
| |
| | Aortic Valve Replacement |
| | Gaudiani and Castro have performed about 500 aortic valve replacements and another 300 mitral valve replacements through limited incisions in the chest. | | | This continuing medical education activity has been planned and implemented in accordance with the Essential Areas and Policies of the Accreditation Council for Continuing Medical Education through the joint sponsorship of Physicians Practice and slp3D. | | | This includes such a procedure as will be shown today. |
|
http://www.or-live.com/medtronic/1200
(505 words)
|
|
| |
| | U-M CVC - Bicuspid Aortic Valve |
| | This can result in obstruction of blood flow across the valve, a condition called aortic stenosis and/or valve leakage, a condition called aortic valve regurgitation. | | | The natural course of bicuspid aortic valve varies widely. | | | Rapidity of progression of aortic stenosis in patients with congenital bicuspid aortic valves. |
|
http://www.med.umich.edu/cvc/mchc/parbi.htm
(538 words)
|
|
| |
| | Aortic Valve Replacement, Endoscopic Procedure |
| | The aortic valve functions as a one-way valve between the heart and the rest of the body. | | | Although some patients are not candidates for Endoscopic Vein Harvesting, MASA Surgeons strive to provide this state-of-the-art technique for all bypass patients. | | | The disadvantage of mechanical valves is that they require anticoagulation with blood thinners for the remainder of a patient's life. |
|
http://www.heartsurgeons.com/pr4.html
(851 words)
|
|
| |
| | High cholesterol and calcification are to blame for aortic valve disease |
| | A study published today in Circulation authored by researchers at Northwestern and the Mayo Clinic is the first to explain the mechanism responsible for this process. | | | “Our lab studies showed that statins greatly reduced the prevalence of the bone-forming cells and reduced the extent of changes in the aortic valve,” said Dr. Rajamannan. | | | Aortic valvular disease is the most common reason for surgical valve replacement. |
|
http://www.eurekalert.org/pub_releases/2002-06/nmh-hca052402.php
(415 words)
|
|
| |
| | New Bioprostheses for Aortic Valve Replacement |
| | The AOA treatment process will eventually be used in both stented and stentless valves in the future. | | | (12) The 10-year freedom from valve degeneration was 93% and from thromboembolism, 92%. | | | These valves utilize a low-pressure tissue fixation process. |
|
http://www.med.nyu.edu/cvsurgery/en/info/prof/valvular3.html
(310 words)
|
|
| |
| | Aortic-valve.com Aortic Valve Network |
| | Theodore Cole offers natural holistic therapies for the treatment of cancer, heart disease, stroke, autism, aging, natural hormone replacement, and chronic fatigue. | | | It is written for patients so they can make informed choices regarding treatment options.. | | | A look at the types of disease of the aortic valve, incompetence, symptoms, diagnosis, natural history of stenosis and regurgitation. |
|
http://www.aortic-valve.com
(312 words)
|
|
| |
| | Aortic Valve Regurgitation -- Overview |
| | When the heart rests between beats, the aortic valve closes to keep blood from flowing backward into the heart. | | | Aortic valve regurgitation develops when the aortic valve does not function correctly. | | | At this point, an aortic valve replacement is typically needed to prevent abnormal heartbeats (arrhythmias), heart failure, and irreversible damage to the heart muscle. |
|
http://my.webmd.com/hw/heart_disease/hw179694.asp
(264 words)
|
|
| |
| | PS4ROSS: Aortic valve disease |
| | Stenosis describes the condition when a valve does not open completely or the opening is too small, resulting in restricted blood flow; or | | | Some valves have both problems to varying degrees. | | | Because the Ross procedure is primarily an aortic valve operation, this text focuses on problems pertaining to the aortic valve. |
|
http://www.ps4ross.com/ross/back/avd.html
(107 words)
|
|
| |
| | Aortic Regurgitation |
| | These drugs can help regulate the heart rhythm, rid the body of fluids to control edema, and/or help the left ventricle pump better. | | | Patients with mild aortic regurgitation who have few or no symptoms need to see their physician regularly. | | | People with aortic valve disease are at higher risk for developing an infection of the valve (endocarditis). |
|
http://www.americanheart.org/presenter.jhtml?identifier=4448
(323 words)
|
|
| |
| | bicuspid aortic valve - General Practice Notebook |
| | The information provided herein should not be used for diagnosis or treatment of any medical condition. | | | Bicuspid aortic valves are prone to various pathological processes: | | | the valve is more likely to calcify, resulting in aortic stenosis |
|
http://www.gpnotebook.co.uk/cache/1261764628.htm
(140 words)
|
|
| |
| | Bicuspid aortic valve |
| | However, especially in later life, a bicuspid aortic valve may become calcified, which may lead to varying degrees of severity of aortic stenosis and aortic regurgitation, which will manifest as murmurs. | | | A bicuspid aortic valve has only two cusps, and this is mostly due to congenital malformation. | | | About 1-2% of the population have bicuspid aortic valves, and the majority will cause no problems. |
|
http://www.omniknow.com/common/wiki.php?in=en&term=Bicuspid_aortic_valve
(265 words)
|
|
| |
| | ,heart matters,Aortic valve surgery.html" |
| | DO NOT REQUIRE ANTICOAGULATION AND MR ROSS POINTS TO this procedure as A "PERMANANT AORTIC VALVE. | | | THE AORTIC VALVE DISEASE WILL CAUSE AORTIC STENOSIS (A.S) OR AORTIC INSUFICIENY (A.I) homograft,and autograft (ROSS PROCEDURE) |
|
http://www.enter.net/~fsadr/aorvalve.htm
(33 words)
|
|
| |
| | Cardiovascular Pathology |
| | An aortic valve need not be bicuspid to calcify. | | | Sometimes in older adults, a normal tricuspid aortic valve will undergo calcification, a so-called "senile calcific aortic stenosis." Nodules of calcification are seen on the cusps here. |
|
http://www-medlib.med.utah.edu/WebPath/CVHTML/CV091.html
(36 words)
|
|
| |
| | Cardiovascular Pathology |
| | The aorta above the valve displays a smooth intima with no atherosclerosis. | | | The aortic valve shows three thin and delicate cusps. | | | The coronary artery orifices can be seen just above.The endocardium is smooth, beneath which can be seen a red-brown myocardium. |
|
http://www-medlib.med.utah.edu/WebPath/CVHTML/CV002.html
(41 words)
|
|
|
