title: [Thrombosis of mechanical heart valve prosthesis. Value of transesophageal echocardiography in the study of mitral valve prosthesis].
abstract: Forty-three consecutive patients with mechanical valve prostheses underwent transthoracic and transoesophageal echocardiography for suspected thrombolic prosthetic valve dysfunction. The results of these investigations were compared with those of cineradiography and the clinical outcome. The diagnosis of thrombosis was retained in 11 of the 43 patients (10 mitral and 1 aortic valve prostheses). The transthoracic Doppler echo was clearly abnormal in 6 of the 11 cases. Transoesophageal echo was of essential value in all cases but one, showing abnormal movement of the mobile element and/or a paraprosthetic thrombus. The cineradiography gave false negative results in 6 cases. In conclusion, these cases underline the undeniable value of transoesophageal echocardiography in occlusive or non-occlusive thrombosis of a mitral valve prosthesis. This investigation should be undertaken whenever there is the least suspicion of thrombosis of the prosthesis.
authors.affiliation: Hôpital Cardiologique, CHU de Bordeaux, Pessac.
authors.forename: R
authors.initials: R
authors.lastname: Roudaut
authors.forename: T
authors.initials: T
authors.lastname: Labbe
authors.forename: X
authors.initials: X
authors.lastname: Marcaggi
authors.forename: P
authors.initials: P
authors.lastname: Gosse
authors.forename: M
authors.initials: M
authors.lastname: Koch
authors.forename: B
authors.initials: B
authors.lastname: Pouget
authors.forename: M
authors.initials: M
authors.lastname: Dallocchio
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D002933:Cineradiography; D015150:Echocardiography, Doppler / Q000379:methods; D004947:Esophagus; D005260:Female; D005500:Follow-Up Studies; D006350:Heart Valve Prosthesis / Q000009:adverse effects*; D006801:Humans; D008297:Male; D008875:Middle Aged; D008943:Mitral Valve; D011475:Prosthesis Failure; D012086:Reoperation; D015912:Thrombolytic Therapy; D013927:Thrombosis / Q000000981:diagnostic imaging* / Q000628:therapy
vernacular_title: Thrombose de prothèse valvulaire mécanique. Intérêt de l'échocardiographie transoesophagienne dans l'étude des prothèses mitrales.