A 30-year-old male presented to our emergency department with recurrent episodes of syncope for one day. Pulse was feeble with a rate of 200 per minute and systolic blood pressure was 80 mm Hg. Electrocardiogram (Fig. 1) showed a monomor-phic ventricular tachycardia originating from the left ventricu-lar outflow tract (LVOT) region (Fig. 1A). Emergency 200 J synchronized defibrillator shock was...

BACKGROUND Left ventricular outflow tract (LVOT) obstruction and paravalvular leak (PVL) are relatively uncommon, but are serious complications of prosthetic valve replacement. CASE PRESENTATION We present a case that displays the unique therapeutic challenges of treating a patient who developed both LVOT obstruction and mitral PVL after undergoing surgical aortic and mitral valve replacement...

compared with inotropic agents, to prevent the development of significant intraventricular gradients and subsequent hemodynamic deterioration. A word of caution should be added—in patients with cardiogenic shock associated with LVOTO, inotropic agents, vasodilators, and diuretic agents, as well as intraaortic balloon counterpulsation may lead to worsening of shock and worse outcomes (4–6). Ball...

Left ventricular outflow tract tachycardia (LVOT-VT) is an uncommon type of idiopathic left ventricular tachycardia (ILVT) thought to be due to cyclic adenosine mono phosphate (cAMP) mediated triggered activity. The arrhythmia can be terminated pharmacologically with calcium channel blockers or beta-blockers [1]. LVOT-VT can arise above or below the coronary cusps and the former variety can als...

Hypertrophic cardiomyopathy (HCM) has evoked both fascination and controversy since its first modern description 50 years ago.1 Originally described as “functional aortic subvalvar stenosis” by Brock, the majority of articles about HCM in the ensuing first decade emanated from observations made in the operating room or in the cardiac catheterization laboratory.1 The actual cause of left ventric...

Abstract Background Regurgitation following TAVR impacts all-cause mortality. So far, no quantitative comparison of regurgitation by the same core lab has been performed among various commercially available transcatheter heart valves (THV) We aimed to compare angiographic aortic (AR) 11 different types THVs. Method This is a multicentre retrospective corelab pooled analysis aortograms from 2704...

APPEARANCE Appearance: Systolic anterior motion of the mitral valve (SAM) is a paradoxical motion of the anterior, and occasionally posterior, mitral valve leaflet towards the left ventricular outflow tract (LVOT) during systole (Fig. 1 and see Videos, Supplemental Digital Content 1 and 2, which demonstrate characteristic SAM with subaortic stenosis and mitral regurgitation on cine steady state...

BACKGROUND Aortoventriculoplasty is an established method of reconstruction of complex left ventricular outflow tract (LVOT) obstruction by insertion of a mechanical valve prosthesis after patch enlargement of the LVOT. Little data exist with respect to long-term outcome. METHODS Between March 1991 and June 2001, 24 patients with a median age of 10.7 (range, 2.1 to 66) years underwent aortove...