Wada-Cutter Mitral Heart Valve
date: label: date made
content: after 1967
notes: label: Description
content: 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.
label: Description
content: 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
label: Description
content: 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.
label: Location
content: Currently not on view
place: label: place made
content: United States: Texas
topic: label: Subject
content: Cardiology
label: Subject
content: Prosthesis
label: Subject
content: Artificial Organs
setName: label: See more items in
content: Medicine and Science: Medicine
label: See more items in
content: Health & Medicine
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content: Artificial Heart Valves
creditLine: label: Credit Line
content: Gift of Manuel Villafaña
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: 2015.0031.50
label: catalog number
content: 2015.0031.50
label: accession number
content: 2015.0031
label: serial number
content: M30-798CO
objectType: label: Object Name
content: cardiology
label: Object Name
content: artificial heart valve
physicalDescription: label: Physical Description
content: teflon (valve material)
label: Physical Description
content: glass (jar material)
label: Physical Description
content: titanium (valve material)
label: Physical Description
content: cloth (valve material)
label: Measurements
content: valve: .6 cm x 3.4 cm x 3.4 cm; 1/4 in x 1 11/32 in x 1 11/32 in
label: Measurements
content: 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