Fixed left ventricular outflow tract obstruction mimicking hypertrophic obstructive cardiomyopathy: pitfalls in diagnosis. Issue 11 (10th September 2016)

• Record Type: Journal Article
• Authors: Ayoub, Chadi; Brieger, David; Chard, Richard; Yiannikas, John
• Is Part Of: Echocardiography. Volume 33:Issue 11(2016)
• Page Start: 1753
• Page End: 1761
• Publication Date: 2016-09-10
• Subjects: aortic stenosis -- hypertrophic cardiomyopathy -- left ventricular outflow tract obstruction -- subvalvular -- supravalvular -- surgery; Echocardiography -- Periodicals; Echocardiography -- Periodicals; 616.1207543
• DOI: 10.1111/echo.13356
• Languages: English
• ISSNs: 0742-2822

Abstract

Abstract : We present a case series that highlights the diagnostic challenges with left ventricular hypertrophy (LVH) and left ventricular outflow tract obstruction (LVOTO). Fixed structural lesions causing LVOTO with secondary LVH may mimic hypertrophic obstructive cardiomyopathy (HOCM). Management of these two entities is critically different. Misdiagnosis and failure to recognize fixed left ventricular outflow tract (LVOT) lesions may result in morbidity as a result of inappropriate therapy and delay of definitive surgical treatment. It is thus necessary to identify the correct type and level of obstruction in the LVOT by careful correlation of clinical examination, Doppler evaluation, and advanced imaging findings.