caa a22 4500 388115122 CHVBK 20180307125404.0 cr unu---uuuuu 161130e199909 xx s 000 0 eng 10.1017/S1047951100005400 doi S1047951100005400 pii (NATIONALLICENCE)cambridge-10.1017/S1047951100005400 The aortic valve with two leaflets — a study in 2,000 autopsies [Elektronische Daten] Our study is based on the examination of 2,000 aortic valves obtained from fresh cadavers (1,499 males, 501 females) at the Institute of Forensic Medicine in Rio de Janeiro. We discovered 13 valves having two leaflets, giving a prevalence of 0.65%, much lower than generally reported in the literature. All 13 valves were from males, 10 from whites, three from mulattos, and none from blacks. Special attention was given to the raphe and the leaflets, the calcification of which can lead to stenosis. The only valves with normal texture and flexibility were two obtained from children less than one year old. All the other valves were thickened, and five of them had some degree of calcification. Six valves were judged to be functioning normally, while 7 valves were abnormal, 5 being stenotic and two showing evidence of insufficiency. The insufficiency in one was due to endocarditis, but in the other was due to redundancy of the leaflets. The only other cardiac anomaly discovered in these 13 cases was one patient with aortic coarctation. Bifoliate aortic valve, therefore, is probably the most common cardiac anomaly, although its prevalence as discovered in Brazil is lower than that reported in the literature. It affects mainly white males. After the fourth decade of life, most valves present some thickening, with stenosis being the most common complication. As is well recognised, infective endocarditis and aortic insufficiency are the other frequent complications. It is in general, nonetheless, an isolated anomaly. Copyright © Cambridge University Press 1999 Bifoliate aortic valve nationallicence bicuspid aortic valve nationallicence aortic valvar stenosis nationallicence aortic insufficiency nationallicence aortic valvar disease nationallicence Pauperio Helder M. Division of Paediatric Cardiology, Socor and Felicio Rocho Hospital, Belo Horizonte MG, Brazil. Azevedo Arthur C. Division of Paediatric Cardiology, Socor and Felicio Rocho Hospital, Belo Horizonte MG, Brazil. Ferreira Claudia S. Division of Paediatric Cardiology, Socor and Felicio Rocho Hospital, Belo Horizonte MG, Brazil. Cardiology in the Young Cambridge University Press 9/5(1999-09), 488-498 1047-9511 9:5<488 1999 9 CTY https://doi.org/10.1017/S1047951100005400 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1017/S1047951100005400 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Pauperio Helder M. Division of Paediatric Cardiology, Socor and Felicio Rocho Hospital, Belo Horizonte MG, Brazil NATIONALLICENCE 700 1- Azevedo Arthur C. Division of Paediatric Cardiology, Socor and Felicio Rocho Hospital, Belo Horizonte MG, Brazil NATIONALLICENCE 700 1- Ferreira Claudia S. Division of Paediatric Cardiology, Socor and Felicio Rocho Hospital, Belo Horizonte MG, Brazil NATIONALLICENCE 773 0- Cardiology in the Young Cambridge University Press 9/5(1999-09), 488-498 1047-9511 9:5<488 1999 9 CTY CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-cambridge