Results 261 to 270 of about 13,196 (308)
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[Hemodynamics of various heart valve prostheses].
Schweizerische medizinische Wochenschrift, 1992Modern tilting disc and bileaflet prostheses, and bio-prostheses, perform similarly regarding pressure gradients, discharge coefficient and performance index; however, only bio-prostheses increase their opening area with increasing flow. Ball valve prostheses of the Starr-Edwards type perform less satisfactorily with higher pressure gradients and lower
D, Burckhardt +3 more
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A key to identify heart valve prostheses.
Archives of pathology, 1975A system for the identification of heart valve prostheses has been developed. A series of observations is made on the structure of a prosthesis. Following each the most appropriate choice of two or three alternative findings is made. One is then directed to the next observation until a genus of prostheses is found with structural characteristics ...
M D, Silver, B N, Datta, V F, Bowes
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[Heart failure in patients with valve prostheses].
Cardiologia (Rome, Italy), 1992Congestive heart failure in patients with prosthetic valves is a complex syndrome which poses difficult clinical and therapeutical problems. In order to identify etiologic factors, pathophysiologic substrates, clinical pictures and natural history we retrospectively evaluated 124 consecutive patients (mean age 61 +/- 11 years) with prosthetic valves ...
C, Rapezzi +9 more
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Dynamics of mechanical heart valve prostheses
1995A numerical code for analyzing the dynamic behaviour of heart valve prostheses is presented. The study is conducted with the valve in a simplified cardiovascular system, represented schematically by a circuit with a pump, the valve under test, a rugged elastic tube and a capacity.
BELFORTE, GUIDO +2 more
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[Thrombosed mechanical heart valve prostheses].
Kyobu geka. The Japanese journal of thoracic surgery, 2004Our clinical experiences of treatment for definite or probable thrombosed mechanical valve prostheses was presented and discussed concerning with surgical indication, several operative approaches to a target valve and detail surgical techniques.
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[Pregnancy in users of heart valve prostheses].
Recenti progressi in medicina, 1991The observation of pregnancy in women with a mitral and aortic valvular prosthesis, allows the authors to point out the high maternal and fetal risk and to show the therapeutical treatment chosen. The obtained results, confirm the effectiveness of the anticoagulant treatment by heparin and of delivery by cesarean section.
G, Plotti +3 more
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A framework for developing sex-specific engineered heart models
Nature Reviews Materials, 2021Sharon Fleischer +2 more
exaly
Long-term performance of heart valve prostheses
Current Problems in Cardiology, 2000G L, Grunkemeier +4 more
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