Key result
Transthoracic echocardiography revealed a discrete subaortic membrane causing subvalvular aortic stenosis in an asymptomatic man in his 60s with an ejection systolic murmur.
Case Report (n=1)
Transthoracic echocardiography is effective in identifying structural causes of asymptomatic murmurs, such as a subaortic membrane.
Supports echo to detect treatable fixed obstruction when this murmur lessens with Valsalva; leaves open management of asymptomatic adult subaortic membrane.
A man in his 60s was referred to our clinic as a part of preoperative evaluation for non-cardiac surgery. The patient did not have any cardiovascular symptoms and had never been evaluated previously. Examination revealed a low volume pulse and an ejection systolic murmur best heard in the left parasternal region. An early diastolic murmur was also heard. The ejection systolic murmur decreased in intensity with Valsalva manoeuvre. ### Question The transthoracic echocardiogram is shown in figure 1 (online supplemental video). What is the diagnosis? ### Supplementary video [heartjnl-2021-319841supp001.mp4] Figure 1 Transthoracic echocardiography (A) Apical five-chamber view. (B) Colour Doppler imaging. 1. Hypertrophic cardiomyopathy (HCM) 2. Valvular aortic stenosis 3. Supravalvular aortic stenosis 4. Subaortic membrane The echocardiogram shows a discrete subaortic membrane causing subvalvular aortic stenosis. The colour Doppler across aortic …
No takes yet. Share an insight, caveat, or question.
Bhasin et al. (2021) conducted a case report in Subvalvular aortic stenosis (n=1). Transthoracic echocardiography was evaluated on Diagnosis of the murmur. Transthoracic echocardiography revealed a discrete subaortic membrane causing subvalvular aortic stenosis in an asymptomatic man in his 60s with an ejection systolic murmur.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: