Midventricular obstruction--a form of XXXX --and systolic anterior motion of the mitral valve.

@entity1 @entity662 @entity1353 @entity1184 @entity3885 @entity1163 @entity4346 @entity955 @entity67 @entity1121
@entity1121 ( @entity1121 ) has various manifestations with respect to the localization of the @entity1184 . In this study we report clinical, electrocardiographic (ECG), echocardiographic (echo), and hemodynamic findings in @entity3885 ( @entity3885 ), an uncommon form of @entity1121 ( @entity1121 ) in 9 @entity1 . The prevalence of systolic anterior motion of anterior mitral leaflet (SAM) in @entity3885 , an echocardiographic diagnostic hallmark in @entity1121 , was another purpose of this study. All @entity1 had complete clinical, ECG, echo, and hemodynamic workup, including left ventricular (in 4 @entity1 simultaneous biventricular, SBVA) and coronary angiograms. All @entity1 had @entity1353 and palpitations, @entity662 , 2 had @entity1163 . In the ECG, @entity955 was present in 2, and @entity4346 in 9 @entity1 . Septal and left ventricular free wall thickening was significantly present in all @entity1 in echo, and SAM in 1 @entity1 . The intraventricular gradient (IVG) was 40-176 mmHg, in 1 case 40 mmHg by provocation, Brockenbrough was positive in all @entity1 . Two @entity1 had right ventricular IVG. A positive beta-blocking agent effect was present in 6 cases. The best localization of the obstruction was possible with SBVA and 2D-echo. We conclude that @entity3885 has all the signs of @entity1121 , but SAM in echocardiography is uncommon. SAM is occasionally present and is not a necessary factor to produce an intraventricular pressure gradient in @entity1121 , especially in @entity3885 . It seems that @entity1184 right @entity67 is relatively common in @entity3885 (2 of 9 cases), and may have the same obstructive mechanism.
