What is Lvoto?
Left ventricular outflow tract obstruction (LVOTO) can occur at the valvular, subvalvular, or supravalvular level. In general, there is an obstruction to forward flow which increases afterload, and if untreated, can result in hypertrophy, dilatation, and eventual failure of the left ventricle.
What causes Lvoto?
Left ventricular outflow tract obstruction (LVOTO) is a recognised feature of hypertrophic cardiomyopathy. It is caused by the thickened heart muscle and the abnormal movement of the mitral valve. This is the main mechanism of debilitating symptoms in hypertrophic cardiomyopathy patients.
Is Lvot heart failure?
A left ventricular outflow tract pressure gradient (LVOT PG) ≥50 mmHg at rest in hypertrophic cardiomyopathy (HCM) is a predictor of heart failure and cardiovascular death [1, 2].
What is the most common cause of obstruction to left ventricular inflow?
Hypertrophic Cardiomyopathy Left ventricular outflow tract (LVOT) obstruction in HCM is caused by contact between the anterior leaflet of the mitral valve and the interventricular septum during systole.
What is a significant gradient?
A significant gradient is generally considered to be an LVOT gradient >50 mmHg (1).
How is Lvot obstruction treated?
The pharmacological treatment of LVOT obstruction and related symptoms in HCM patients is based on a time-honoured combination of negative inotropic agents, including β-blockers, calcium antagonists, and disopyramide.
What is Lvot in echocardiogram?
Left ventricular outflow tract velocity time integral (LVOT VTI) is a measure of cardiac systolic function and cardiac output. Heart failure patients with low cardiac output are known to have poor cardiovascular outcomes. Thus, extremely low LVOT VTI may predict heart failure patients at highest risk for mortality.
What does Lvot mean on an echo?
Left ventricular outflow tract (LVOT) obstruction describes a state in which the egress of blood from the left ventricle to the systemic circulation is impeded as it traverses the anatomic LVOT to the aortic arch.
What does gradient mean in aortic stenosis?
According Cardiovascular Physiology, stenosis of the aortic valve leads to a pressure gradient across the valve during the time in which blood flows through the valve opening. This aortic valve gradient is expressed as an increase and decrease on each side of the defective valve.
What is a mild cardiomyopathy?
Cardiomyopathy (kahr-dee-o-my-OP-uh-thee) is a disease of the heart muscle that makes it harder for the heart to pump blood to the rest of the body. Cardiomyopathy can lead to heart failure. The main types of cardiomyopathy include dilated, hypertrophic and restrictive cardiomyopathy.
What is left ventricular outflow tract obstruction LVOTO?
Left ventricular outflow tract obstruction (LVOTO) can occur at the valvular, subvalvular, or supravalvular level. In general, there is an obstruction to forward flow which increases afterload, and if untreated, can result in hypertrophy, dilatation, and eventual failure of the left ventricle.
What does LVOTO stand for?
Explain the treatment considerations in patients with left ventricular outflow tract obstruction (LVOTO). Review the importance of improving care coordination among interprofessional team members to improve outcomes for patients affected with left ventricular outflow tract obstruction (LVOTO). Access free multiple choice questions on this topic.
What are the possible side effects of LVOT?
All LVOTO can be associated with other defects. LVH due to increase in afterload, subendocardial ischemia leading to coronary ischemia with cardiomyopathy; reduced blood fow through LVOT leading to hypoplasia of mitral valve, LV and aortic arch. ECG (left axis, LVH), ECHO.
What kind of Doctor treats left ventricular outflow tract obstruction (LVOTO)?
There are many causes of left ventricular outflow tract obstruction (LVOTO) and thus the condition is best managed by an interprofessional team that includes a pediatrician, cardiologist, cardiac surgeon, internist, and cardiac nurses.