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Doctor insights on: Are Artificial Valves Better Than Animal Valves For Replacement Operations

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Are artificial valves better than animal valves for replacement operations?

Are artificial valves better than animal valves for replacement operations?

Depends: Not a straightforward answer since it would depend on the valve needing replacement, the degree of injury, and type of valve to be used. Often mechanical valves need longer and more intense anti-coagulation to keep them going. Best to discuss options with the cardiac surgery team contemplating the procedure. ...Read more

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Dr. Sandra Eleczko
1 doctor shared a insight

Valve (Definition)

A valve is a structure that regulates the direction of flow. The heart is a special kind of pump. It moves blood by squeezing and relaxing. There are 4 chambers and each chamber has a valve. This keeps blood from moving backwards when the heart squeezes. When a chamber squeezes it lets the blood move forward but when the chamber is relaxed it prevents the blood from ...Read more


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Are titanium valves better than pig valves for replacement therapy?

Depends: The decision to use a mechanical or biologic valve depends on many factors, such as age, medical conditions, childbearing expectations and preference. Mechanical valve last longer but require anticoagulation with its associated problems. Biological valves do not cause blood clotting on their surface but do not last as long and in young patients may require another valve replacement over time. ...Read more

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Why are pig heart valves suitable as replacements for damaged heart valves in humans?

Why are pig heart valves suitable as replacements for damaged heart valves in humans?

Tissue valves: The size of pig and cow valves approximates the size of human valves. They are chemically treated to decrease the likelihood of tissue rejection. The porcine valves are more commonly used than the bovine. ...Read more

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Home come pig hearts valves are used as replacements for damaged heart valves in humans?

Home come pig hearts valves are used as replacements for damaged heart valves in humans?

Tissue valves: We use beef, pig and human aortic valves as replacements in humans. Those three most closely simulate the size of the human valves. ...Read more

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Are there aortic valve repair surgeries that don't replace the valve with an artificial one?

Are there aortic valve repair surgeries that don't replace the valve with an artificial one?

Yes: There are several operations that in fact repair the aortic valve or preserve the native valve tissue while replacing the diseased aorta where the valve attaches. ...Read more

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Mitral valve repair surgery (prosthetic material ring with native valve) 6 months postop are antibiotics required for life for dental work in us & uk?

Mitral valve repair surgery (prosthetic material ring with native valve) 6 months postop are antibiotics required for life for dental work in us & uk?

Yes for replacements: If you have your mitral valve replaced it is necessary to pre medicate with antibiotics prior to any dental procedure that may involve bleeding. That would include cleanings, extractions , root canals and any invasive procedures. Your dentist will tell you when to pre medicate. ...Read more

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What are possible non-invasive treatments for mitral stenosis with mitral valve area less than 0.85?

What are possible non-invasive treatments for mitral stenosis with mitral valve area less than 0.85?

Mitral stenosis: Severe mitral stenosis is a mechanical obstructive lesion. It needs to be corrected by surgery or occassionally a catheter based dilation of the abnormal valve. Surgery is generally preferred. Non invasive treatment can not increase the valve area and is limited to slowing the heart rate to allow more time for ventricular filling. This is of limited benefit. ...Read more

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Are there any treatments for aortic stenosis other than surgery or percutaneous aortic valve replacement?

Long term, no: For "critical aortic stenosis" (valve area less than .7cm2) surgery, and occasionally valvuloplasty is the only curative treatment. Prior to the critical phase of aortic stenosis, the condition is temporized with medications that support overall heart function. ...Read more

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Have scientists found total knee replacement options, other than traditional artificial joint replacement surgery?

Have scientists found total knee replacement options, other than traditional artificial joint replacement surgery?

Yes: Depending on the nature of the condition, there are several options. Cartilage repair surgery continues to develop for early knee damage. For more significant involvement of 1 side or compartment of the knee, a partial knee replacement may relieve pain and restore function. If the knee has severe damage, a total knee replacement is indicated. ...Read more

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Mitral valve repair surgery with prosthetic material annuloplasty ring 6 months postop are antibiotics required for life for dental work in us & uk?

Mitral valve repair surgery with prosthetic material annuloplasty ring  6 months postop are antibiotics required for life for dental work in  us & uk?

AHA recommendations: As of now, in the us, according to the aha, yes. I cannot say what the protocol would be in the uk but would assume it was the same. Your own cardiologist is the one to address all your questions and concerns to, both now and in the future. See the following site for more information as to basic recommendations: http://www.Heart.Org/heartorg/conditions/congenitalheartdefects/theimpactofcongenitalheartdefects/infective-endocarditis_ucm_307108_article.Jsp. ...Read more

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Tof corrected 20 years back, now pulmonary valve to be replaced with bovine valve. Is there any other option. Which is the best valve option.

Talk to your doctor: This is the role your doctor should be taking- talk to you about the pros and cons on different options. If you don't trust his judgment, then you need to get a second opinion. For example, if you were a muslim, then a pork valve would not be an option for you regardless how good it may be. ...Read more

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Are there advantages to a heart valve replacement over a heart transplant?

Are there advantages to a heart valve replacement over a heart transplant?

Yes: A heart valve replacement does not require a new heart from a deceased individual, and does not create the need for lifelong immunosuppressive drugs to prevent rejection of the heart. ...Read more

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Are there any other total knee replacement options, other than traditional artificial joint replacement surgery?

Are there any other total knee replacement options, other than traditional artificial joint replacement surgery?

Several choices: Depending on the wear status of the knee, unicompartmental replacement may be an option. Osteotomy (realignment) of the leg may also be an option. As for total knee replacements, there are custom cutting guides, custom implants, and computer navigation options, but none have been shown to be superior to traditional tka performed by an experienced surgeon. ...Read more

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Are acellular dermal matrixes more successful in hernia repair than artificial mesh?

Are acellular dermal matrixes more successful in hernia repair than artificial mesh?

Typically not. : While acellular dermal matrixes are used in hernia repair, they tend to stretch over time, leaving the patient with unsatisfactory results. They are useful in infected fields and in places where it can be dangerous to use artificial mesh. ...Read more

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Is tvar aorta valve replacement as effective as open heart surgery?

Is tvar aorta valve replacement as effective as open heart surgery?

Depends: This is a relatively new way of repairing an aortic valve. While more and more data is coming out in regards to less invasive techniques this is still mostly reserved for those who aren't candidates for open heart surgery and have symptomatic aortic valve stenosis. It does help people but it doesn't replace open heart techniques for those who can undergo surgery. ...Read more

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How safe are artificial heart valves?

How safe are artificial heart valves?

Analyse risk/benefit: Artificial heart valves came on the medical scene in 1961. Prior to these life savers, open heart surgeons could repair damaged heart valves. A valve repair might last 1 to 6 years. The question you need answered is... Without a heart valve how will my health be? From that point you can get the risk of implanting and maintaining your new valve. Take a friend/family with you to help decide. ...Read more

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Few yrs After Mitral Valve repair will now have B12 injections Would injections be less of a risk for Endocarditis in other areas eg leg than arm?

Few yrs After Mitral Valve repair 
will now have B12 injections
Would injections be less of a risk
for Endocarditis in other areas
eg leg than arm?

Skin cleansing: As long as the skin is properly cleansed, it should be okay to take the injection at a site convenient for you. Arm is usually easier and you may wish to use the arm as the volume of injection is not much. ...Read more

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What is done for elimination of prosthetic valve mismatch in patients receiving an aortic valve replacement who have smaller sized ao size.19mm valve?

What is done for elimination of prosthetic valve mismatch in patients receiving an aortic valve replacement who have smaller sized ao size.19mm valve?

Aortic root expansio: While it adds some complexity, the aortic root can be expanded, or even replaced in special circumstances. ...Read more

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Artificial Tears and Autologous serum (AS) tears are different right? How are they different? Is one newer? Is one better? Advantages/disadvantages?

Artificial Tears and Autologous serum (AS) tears are different right? How are they different? Is one newer? Is one better? Advantages/disadvantages?

Quite different: Artificial tears are commercial products that substitute for tears. Autologous tears are a mixture of an artificial tear and the serum from your own bloodstream. They usually are superior but are reserved for more severe cases poorly responsive to regular tear drops. They have to be made in compounding pharmacies and are quite expensive. But can be of great help for those who need them. ...Read more

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Aortic valve replacement done with pig or fake one?

Aortic valve replacement done with pig or fake one?

AVR: Aortic valves can be replaced with either mechanical valves or bio prosthetic, taken from animals and treated to prevent rejection. There are different reasons for choosing either valve such as age and treatment with anticoagulants. Individuals who do not wish to be on meds such as Coumadin (warfarin) may have a bioprosthetic valve, however, younger individuals usually have mechanical valves. ...Read more