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2. Supravital staining - Wikipedia

   en.wikipedia.org/wiki/Supravital_staining

   Supravital stain of a smear of human blood from a patient with hemolytic anemia. The reticulocytes are the cells with the dark blue dots and curved linear structures (reticulum) in the cytoplasm. Supravital staining is a method of staining used in microscopy to examine living cells that

3. Vital stain - Wikipedia

   en.wikipedia.org/wiki/Vital_stain

   While in supravital staining the living cells take up the stain, in "vital staining" – the most accepted but apparently paradoxical meaning of this term, the living cells exclude the stain i.e. stain negatively and only the dead cells stain positively and thus viability can be assessed by counting the percentage of total cells that stain ...

4. Valve replacement - Wikipedia

   en.wikipedia.org/wiki/Valve_replacement

   Valve replacement surgery is the replacement of one or more of the heart valves with either an artificial heart valve or a bioprosthesis (homograft from human tissue or xenograft e.g. from pig). It is an alternative to valve repair .

5. Heart valve repair - Wikipedia

   en.wikipedia.org/wiki/Heart_valve_repair

   Heart valve repair is a cardiac surgery procedure, carried out to repair one or more faulty heart valves. In some valvular heart diseases repair where possible is preferable to valve replacement . A mechanical heart valve is a replacement valve that is not itself subject to repair.

6. Aortic valve replacement - Wikipedia

   en.wikipedia.org/wiki/Aortic_valve_replacement

   An aortic homograft is an aortic valve from a human donor, retrieved either after their death or from their heart if they are undergoing a heart transplant. [17] A pulmonary autograft, also known as the Ross procedure is where the aortic valve is removed and replaced with the patient's own pulmonary valve (the valve between the right ventricle ...

7. Ross procedure - Wikipedia

   en.wikipedia.org/wiki/Ross_procedure

   Diagram of the human heart. Several adaptations of the Ross procedure have evolved, but the principle is essentially the same; to replace a diseased aortic valve with the person's own pulmonary valve (autograft), and replace the person's own pulmonary valve with a pulmonary valve from a cadaver (homograft) or a stentless xenograft.

8. Transcatheter aortic valve replacement - Wikipedia

   en.wikipedia.org/wiki/Transcatheter_aortic_valve...

   In patients who are deemed too high risk for open heart surgery, TAVI significantly reduces the rates of death and cardiac symptoms. [6] Until about 2017 TAVI was not routinely recommended for low-risk patients in favor of aortic valve replacement, however it is increasingly being offered to intermediate risk patients, based on studies finding ...

9. Tissue engineering of heart valves - Wikipedia

   en.wikipedia.org/wiki/Tissue_engineering_of...

   Tissue engineered heart valves (TEHV) offer a new and advancing proposed treatment of creating a living heart valve for people who are in need of either a full or partial heart valve replacement. Currently, there are over a quarter of a million prosthetic heart valves implanted annually, [ 1 ] and the number of patients requiring replacement ...