Membranöse subvalvuläre Aortenstenose: Nachweis mittels transthorakaler und transösophagealer 2-D-Dopplerechokardiographie

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Abstract
Five patients (four males and one female, aged 29 to 75 years) with subaortic stenoses were examined by transthoracal and transoesophageal echocardiography, including two-dimensional Doppler echocardiography. In only one patient could be obstruction of the left ventricular outflow tract be definitively evaluated by transthoracal echocardiography, whereas by transoesophogeal echocardiography the presence of a subaortic membrane could be demonstrated in all patients. The latter method thus proved to be reliable in evaluating the extent of obstruction.