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Topic: Aortic valve replacement


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In the News (Fri 1 Jan 10)

  
  AORTIC VALVE REPLACEMENT   (Site not responding. Last check: 2007-11-07)
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 aortic valve opens to allow blood to leave the left ventricle (the main pumping chamber of the heart) and closes to prevent blood from leaking backwards into the ventricle from the rest of the body.
The aortic valve is the outflow valve of the left side of the heart, meaning that it opens during systole (when the ventricle contracts or squeezes blood out into the aorta and the rest of the body).
www.sts.org /doc/3620   (1453 words)

  
 Aortic Stenosis
Aortic stenosis becomes hemodynamically significant when the area is about 1cm2 to 0.8cm2 (as noted above in the above discussion of the area of the valve orifice which can be classified as to severity of stenosis), as the systolic flow is impeded across the valve.
In the aortic position, a bioprosthetic valve is the valve of choice in most elderly patients because the rate of valve tissue degeneration is considerably lower than in younger age groups and the probability of valve tissue failure in patients over 70 is 20% at 10 years.
In the younger age group, mechanical prosthetic valves tend to be used because most patients wish to minimize the probability of reoperation due to valve dysfunction and because of the accelerated fibrosis-calcification in biologic prosthetic valves in children and young adults.
www.rjmatthewsmd.com /Definitions/aortic_stenosis.htm   (2208 words)

  
 Homografts in Adult Practice -- CTSNet FAQs
Patients requiring replacement of their ascending aorta and aortic valve associated ascending aortic aneurysm and aortic valve disease are candidates for homograft aortic valve replacement.
Replacement of the aortic valve with a pulmonary homograft valve has been performed by a number of surgeons with good short-term results.
When an aortic homograft root replacement is used, the aortic homograft should be the same size as the measured annulus or within 1 or 2 mm of the size of the aortic annulus (i.e., a 22 to 26 mm aortic homograft can be used to replace the aortic root with a 24 mm aortic annulus).
www.ctsnet.org /doc/101   (928 words)

  
 Aortic Valve Replacement   (Site not responding. Last check: 2007-11-07)
The aim of valve replacement in patients with aortic valve disease is to treat symptoms and...
underwent mitral valve replacement, 211 underwent aortic valve replacement, and 61...
Table of Contents: Aortic valve replacement is an "open heart" procedure performed by cardithoracic surgeons for treatment of narrowing (stenosis) or leakage (regurgitation) of the aortic valve.
www.cardiac-bcpa.co.uk /health/aortic_valve_replacement.html   (609 words)

  
 Heart Valve Replacement, Aortic Valve Replacement, Mitral Valve Repair - BWH   (Site not responding. Last check: 2007-11-07)
Heart valve disease initially may be treated medically but, in most cases, surgery is necessary to repair or replace the damaged valve or valves.
Aortic valve replacement incisions are performed through an upper mini-sternotomy, in which an incision is made from the sternal notch to the third intercostal space.
Mitral valve replacement/repair incisions are performed through a lower mini-sternotomy, in which a 6-8 cm incision is made at the lower end of the sternum upward to the second intercostal space and extending into the interspace on the right.
www.brighamandwomens.org /patient/cardiac_valve.asp   (3122 words)

  
 Aortic Valve Stenosis -- Surgery
In rare cases, the aortic valve may be replaced with another heart valve (usually the pulmonic valve between the lower right heart chamber and the opening to the artery that goes to the lungs).
This type of valve surgery may be used in people younger than 25 who stand to benefit the most from this difficult surgery; the pulmonic valve is more durable, grows with the person, and has a lower risk of infection.
Valve replacement surgery is high-risk for people who have a failing left ventricle and who have had a heart attack.
my.webmd.com /hw/heart_disease/uf4518.asp   (504 words)

  
 Raney Zusman Medical Group   (Site not responding. Last check: 2007-11-07)
The aortic valve is located between the powerful left ventricle and the aorta, which connects the blood pumped from the heart to the rest of the body.
The aortic valve is crucial in maintaining flow of blood from the heart to the rest of the body.
In aortic valve relpacement surgery, the patient is put to sleep with general anesthesia and an anesthesiologist monitors consciousness throughout the operation.
www.raneyzusman.com /procedures/homograft.html   (498 words)

  
 Aortic Valve Replacement, Endoscopic Procedure
The aortic valve functions as a one-way valve between the heart and the rest of the body.
Blood is pumped from the left ventricle of the heart, through the valve, and down the aorta, which in turn supplies blood to all of the organs in the body (see Figure 17).
The function of the aortic valve is then twofold: (1) It provides a route for which blood can leave the heart, and (2) It prevents blood that has already left the heart from leaking backwards into the heart.
www.heartsurgeons.com /pr4.html   (851 words)

  
 Abstracts
Use of the native aortic valve as the pulmonary valve in the Ross procedure
Replacement of the aortic root with a pulmonary autograft in children and young adults
Pulmonary autograft valve replacement in the dilated and asymmetric aortic root
members.cox.net /myrossprocedure/articles.html   (465 words)

  
 Heart valve replacement, forum heart replacement valve, aortic heart valve replacement   (Site not responding. Last check: 2007-11-07)
Aortic valve replacement is an "open heart" procedure performed by cardithoracic surgeons for treatment of narrowing (stenosis) or leakage (regurgitation)...
Heart valve replacement is a surgical procedure during which surgeons remove a damaged valve from the heart and substitute a healthy one.
Heart valve replacement or repair are procedures to mend or replace cardiac valves that are damaged as the result of valvular disease.
www.automotivelog.com /heart-valve-replacement.html   (1516 words)

  
 Heart Info - Aortic Valve Disease
Aortic Valve Disease entails damage to, and dysfunction of, the aortic valve, one of the four valves in the heart.
Aortic valve disease can be congenital, result from infection, occur as a result of rheumatic heart disease, result from the processes of aging, or be of unknown origin.
Most cases of aortic valve disease can be diagnosed by a physical examination, during which a characteristic heart murmur may be detected.
www.heartinfo.org /ms/ency/656/main.html   (763 words)

  
 aortic valve replacement   (Site not responding. Last check: 2007-11-07)
What are the indications for performing aortic valve replacement for aortic valve insufficiency?
You "exploded" the subject headings, and used subheadings appropriately.
You combined the two sets, and did the "limit" trick.
www.dartmouth.edu /~biomed/ondoc.htmld/wrapup_2/file_61.html   (32 words)

  
 Aortic Valve Replacement   (Site not responding. Last check: 2007-11-07)
This means that a successful aortic valve replacement not only sutures in a new prosthesis, but sutures in a prosthesis large enough to allow the left ventricle to return to normal thickness.
About 75% of the time this will be done easily because the site where the aortic valve prosthesis is implanted is big enough to accommodate a valve that will permit the left ventricle to return to normal.
Gaudiani and Castro perform this operation routinely and they have published a paper on this which demonstrates that the technique certainly allows a larger valve to be placed and that the risk is no higher than that found in aortic valve replacement by the usual means.
www.or-live.com /medtronic/1200   (505 words)

  
 eMedicine - Aortic Stenosis : Article by James V Talano, MD   (Site not responding. Last check: 2007-11-07)
, usually is diminished or absent because the AV is calcified and immobile and/or aortic ejection is prolonged or buried in the prolonged systolic ejection murmur.
Aortic root angiogram may show thickening and doming of the AV as well as a poststenotic dilatation of the aortic root.
The age of patients undergoing AVR is rising steadily because the incidence of calcific AS increases as the age of the population increases.
www.emedicine.com /MED/topic157.htm   (7382 words)

  
 Aortic valve stenosis
When aortic valve stenosis occurs, the aortic valve, located between the aorta and left ventricle of the heart, is narrower than normal size.
Aortic valve stenosis can occur because of a birth defect in the formation of the valve.
The valve can be replaced with a mechanical valve, a valve from a pig, or by moving the patient's other heart valve (pulmonary) into the position of the aortic valve and then replacing the pulmonary valve with an mechanical one.
www.healthatoz.com /healthatoz/Atoz/ency/aortic_valve_stenosis.jsp   (831 words)

  
 Geometry.Net - Health_Conditions: Aortic Valve Disease
Although the combination of mitral valve disease and senile calcific aortic stenosis is uncommon, senile aortic calcification is a frequent cause of aortic valve stenosis.
Therefore, although mitral valve disease associated with calcific aortic stenosis is rare, as the incidence of calcific aortic stenosis increases, so does the likelihood of encountering patients with disease of both valves.
Stenotic aortic valve disease is usually caused by one of three pathological processes: Rheumatic fever, which is another term for acute rheumatism.
www4.geometry.net /health_conditions/aortic_valve_disease.html   (2343 words)

  
 Heart Conditions and Surgery - Aortic Valve Replacement   (Site not responding. Last check: 2007-11-07)
Aortic valve replacement means that a patient's aortic valve is replaced by a different Aortic valve replacement currently requires open heart surgery.
Aortic valve replacement is a procedure in which surgery is used to repair or Aortic valve replacement is open-heart surgery that is done while the
Aortic valve replacement procedure topic of hospital’s third webcast Minimally invasive aortic valve replacement is not as widely performed as the
www.bartshearts.co.uk /aortic_valve_replacement.html   (276 words)

  
 aortic heart valve replacement   (Site not responding. Last check: 2007-11-07)
Causes of malfunction, warning signs for a failing valve, how to know if surgery is needed, options for replacement, what the difference is between...
Surgical repair or replacement of the valve is the preferred treatment for symptomatic aortic stenosis.
Aortic insufficiency is a heart valve disease in which the aortic valve weakens or balloons, preventing...
www.sawyer-engineering.co.uk /aortic-heart-valve-replacement.php   (216 words)

  
 Heart Center - Heart Valve Repair and Replacement
While a mechanical valve has an unlimited life, its disadvantage is that patients must take blood thinning medicine (warfarin) for the rest of their lives and have a blood test done every four to six weeks.
These valves may result in less risk of infection, but the operation is more complex than standard valve replacement.
The pulmonic valve is in turn replaced by a homograft valve (a pulmonic valve donated by another person).
www.csmc.edu /2370.html   (600 words)

  
 Bob's Aortic Valve
Bob underwent open heart surgery on May 22, 2002, to replace a defective aortic valve with a mechanical valve, and is now at home recuperating.
Probably taken in the 1930's, long before cardiac surgery was possible, this photograph shows the narrowed and calcified aortic valve cut clean through (in the middle of the photograph).
This drawing of normal cardiac valves from above, with the upper chambers (atria) dissected away, shows the cusps of the aortic valve, which is surrounded with red, with the two coronary arteries, also in red, coming off it.
user.icx.net /~richmond/heart.html   (3111 words)

  
 Aortic Valve Replacement   (Site not responding. Last check: 2007-11-07)
This one is a pig valve, although it can be from a pig or a cow.
This is a mechanical valve made with steel and plastic.
The mechanical valve lasts forever, but blood clots can form on it so you have to take a medicine to thin out your blood, which makes it easier to bleed.
www.sfcardiacsurgery.com /Intro/intro1-13.htm   (183 words)

  
 Untitled document   (Site not responding. Last check: 2007-11-07)
Replacement of the Ascending Aorta with Composite Valve Grafts.
Aortic Valve Replacement for Aortic Stenosis in 200 Consecutive Octogenarians.
The Influence of Aortic Valve Prosthesis Diameter on the Reversibility of Pulmonary Hypertension in Isolated Aortic Stenosis.
www.icr-heart.com /journal/subjectindex/subject_a.htm   (9171 words)

  
 Aortic Valve Replacement at 26
A few years ago was the first time my cardiologist mentioned that I'd probably need to have my aortic valve replaced at some point.
Last January, harsh reality set in as I was told I should have my aortic valve replaced WITHIN A YEAR.
My left ventricle had already been enlarging to compensate for aortic insufficiency, and now the left atrium was starting to enlarge as well.
my.webmd.com /content/article/37/1711_50194   (2149 words)

  
 Aortic Valve Replacement Procedure - Medical Illustration
Accurately depicts the open-heart surgical procedure used to place a St. Jude or Porcine replacement valve in the heart.
Two additional intra-operative views illustrate the removal of the diseased aortic valve and placement of the prosthetic valve.
Aortic Valve Deformity and Surgical Replacement - exh48007
catalog.nucleusinc.com /generateexhibit.php?ID=1024   (178 words)

  
 Aortic Valve Replacement for Aortic Stenosis With Severe Left Ventricular Dysfunction: Prognostic Indicators -- ...   (Site not responding. Last check: 2007-11-07)
Hemodynamic determinants of prognosis of aortic valve replacement in critical aortic stenosis and advanced congestive heart failure.
Prediction of the severity of aortic stenosis by Doppler aortic valve area determination: prospective Doppler-catheterization correlation in 100 patients.
Aortic valve replacement and combined aortic valve replacement and coronary artery bypass grafting: predicting high risk groups.
circ.ahajournals.org /cgi/content/full/95/10/2395   (3930 words)

  
 MedlinePlus: Heart Valve Diseases
Aortic Valve Replacement with Third Generation Stented Bioprosthesis
Aortic Valve Calcification (Aortic Valve Sclerosis) (Mayo Foundation for Medical Education and Research)
Aortic Valve Stenosis (Mayo Foundation for Medical Education and Research)
www.nlm.nih.gov /medlineplus/heartvalvediseases.html   (392 words)

  
 CarboMedics -articles on heart valve and heart valve replacement products
Aortic Valve Replacement in the Elderly: Bioprosthesis or Mechanical Valve?
Replacement of the Proximal Aorta and Aortic Valve Using A Composite Bileaflet P
Valve Replacement with the CarboMedics Bileaflet Mechanical Prosthesis: Clinica
www.carbomedics.com /professional_articles.asp   (1194 words)

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