Wada-Cutter Mitral Heart Valve

Description
The Wada-Cutter cardiac valve prosthesis is a hingeless, tilting disc valve. There are two struts which project into the valve orifice, acting as hinges. The titanium inner ring and radiolucent solid Teflon (polyethylene) disc opens to an angle of 75 degrees. It is considered a low profile valve. Problems encountered included early disc wear, massive thrombosis, thromboembolism, paraprosthetic leaks, and poppet embolization. These complications led to valve the being discontinued.
In clinical trials the Wada-Cutter valve was implanted in 106 patients in whom 42 aortic valve replacements, 48 mitral valve replacements, 5 tricuspid valve replacements, and 11 multiple valve replacements were done. It was the first attempt at a tilting disc. A continuous knotless suture technique was invariably employed for fixation of the prosthesis regardless of the type of operation. Postoperatively there were eleven early and seventeen late deaths, a cumulative mortality of 26.4%. Thromboembolic complications occurred in nine patients following valve replacement. These consisted of thrombosed valve in six patients and embolization other than in the heart in three patients. In another study of 150 patients, there was an early mortality rate of 12% (1969). The Wada-Cutter valve was available between 1967 and 1972
The Wada-Cutter valve was developed by Dr. Juro Wada of Sapporo Medical College and Hospital of Sapporo, Japan in conjunction with Cutter Biomedical Corporation.
Location
Currently not on view
Object Name
cardiology
artificial heart valve
date made
after 1967
Physical Description
teflon (valve material)
glass (jar material)
titanium (valve material)
cloth (valve material)
Measurements
valve: .6 cm x 3.4 cm x 3.4 cm; 1/4 in x 1 11/32 in x 1 11/32 in
jar: 4.7 cm x 5.2 cm x 5.2 cm; 1 27/32 in x 2 1/16 in x 2 1/16 in
place made
United States: Texas
ID Number
2015.0031.50
catalog number
2015.0031.50
accession number
2015.0031
serial number
M30-798CO
subject
Cardiology
Prosthesis
Health & Medicine
Artificial Heart Valves
Artificial Organs
See more items in
Medicine and Science: Medicine
Artificial Heart Valves
Data Source
National Museum of American History, Kenneth E. Behring Center
Credit Line
Gift of Manuel Villafaña
Additional Media

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