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... enlargement of the left atrium and left ventricle to compensate for the regurgitant volume. LV dilatation occurs as a result of remodeling of the extracellular matrix with rearrangement of myocardial fibers, in association with the addition of new sarcomeres in series and the development of eccentri ...
Determination of pressure data from velocity data with a view
Determination of pressure data from velocity data with a view

... blood flow back into the left ventricular cavity. The left sinus of Valsalva is typically slightly smaller than the two other sinuses (not shown to scale), the right and noncoronary sinuses. The left main and right coronary arteries, which provide cardiac tissue/myocardial blood flow, each arise as ...
Conotruncal Cardiac Defect
Conotruncal Cardiac Defect

... 1. The first branch off the MPA courses directly to the right ( right pulmonary artery) 2. The first branch off the aorta courses superiorly (innominate artery) 3. The MPA is considerably shorter than the ascending aorta, ie. The distance from the pulmonary valve to the right pulmonary artery is con ...
AS TIMING AND INDICATIONS FOR SURGERY DR
AS TIMING AND INDICATIONS FOR SURGERY DR

... AS jet velocity is defined as the highest velocity signal obtained from any window after a careful examination A smooth velocity curve with a dense outer edge and clear maximum velocity should be recorded The shape of the CW Doppler velocity curve is helpful in distinguishing the level and severi ...
Cardiac
Cardiac

... Cardiac catheterization – balloon dilation of the narrowed valve. Surgical valvotomy if the closed procedure does not work – often done when patient is older when severe calcium deposits further obstruct the valve. Recurrent valve obstruction is a complication and if valve replacement is done too ea ...
Silent Rheumatic Valvular Heart Disease
Silent Rheumatic Valvular Heart Disease

... cause the closure of the rigid mitral leaflets is delayed ...
Intro to Cardiology
Intro to Cardiology

... arteries; occurs due to STEMI, NSTEMI or unstable angina Chest pain or discomfort that usually occurs with activity or stress Angina pectoris caused by disruption of an atherosclerotic plaque with partial thrombosis Non ST elevation MI/ACS ST elevation MI/ACS require more aggressive treatment Cessat ...
Anatomy
Anatomy

... – Completely repaired congenital heart defect with prosthetic material or device, whether placed by surgery or by catheter intervention, during the first 6 months after the procedure** – Repaired CHD with residual defects at the site or adjacent to the site of a prosthetic patch or prosthetic device ...
NPLEX Combination Review Cardiovascular Part 2
NPLEX Combination Review Cardiovascular Part 2

... Aortic Stenosis (AS) • Most frequent etiology for AS is senile calcific stenosis; second is calcification of a congenital (bicuspid) valve; third is rheumatic heart dis. • Sx include syncope, angina, SOB, CHF • Signs include ejection murmur at right 2nd ICS, weak and delayed peripheral pulses • Dia ...
md-broj 08.qxp - md
md-broj 08.qxp - md

... within the arrested left heart: inflow check valve (mitral valve), and outflow check valve (aortic valve). Application of aspiration pressure within the arrested left ventricle opens the inflow mitral valve and closes the outflow aortic valve allowing drainage of the whole left heart and even draina ...
CARDIAC MURMUR What does it mean?
CARDIAC MURMUR What does it mean?

... n  Stenosis or narrowing in the LVOT creating a partial obstruction to blood flow n  Ridge of fibrous tissue encircling the LVOT below the aortic valve n  ...
The Cardiac Exam Fall 2005
The Cardiac Exam Fall 2005

... o The timing (SYSTOLIC vs. DIASTOLIC) also tells us which valve is affected and what might the abnormality be (stenosis vs regurgitation)—See diagram above ...
G06: Heart (Weyrich)
G06: Heart (Weyrich)

... A patient is diagnosed with cardiac tamponade. Pericardiocentesis is needed to drain fluid from the pericardial cavity to relieve pressure on the heart. To remove fluid a wide bore needle is inserted through the ________ intercostal space near the ____________ and passed superoposteriorly. ...
Aortic Root Pseudoaneurysm Following Surgery for Aortic Valve
Aortic Root Pseudoaneurysm Following Surgery for Aortic Valve

... aortic valve endocarditis with a large periannular abscess cavity and who developed congestive heart failure 3 months later. Furthermore, he was diagnosed with a giant pseudoaneurysm around the aortic root without evidence of recurrent infection or aortic prosthetic incompetence. During his reoperat ...
The sinus of Valsalva relieves abnormal stress on aortic valve
The sinus of Valsalva relieves abnormal stress on aortic valve

... analysis program, which we have developed17 and applied to various problems such as pulsation of the heart.18-21 In this program, the Navier–Stokes equation is described in ALE coordinates, which artificially deform and move according to the instantaneous deformation of the fluid–structure interface ...
Sudden Death After Transcatheter Aortic Valve Implantation
Sudden Death After Transcatheter Aortic Valve Implantation

... of post TAVI-LBBB is not well known, and several cases of spontaneous resolution have been described.20-23 Recent reports correlate new LBBB with increased mortality24 mostly related to progression to high-degree atrioventicular conduction disorders, progression of heart failure due to left ventricu ...
Diseases of the Conduction System
Diseases of the Conduction System

... Diseases of the conduction system are numerous and varied. The authors have selected a few representative entities for this section: complete heart block as a consequence of primary tumor of the atrioventricular node [47], complete heart block associated with aortic stenosis and surgical replacement ...
CV III Cardiac cycle
CV III Cardiac cycle

... Permit blood flow in only one direction When right atrial pressure > right ventricle pressure, blood fills ventricle If right ventricle pressure>right atrial pressure, AV valve closes – no flow back into atria ...
No Slide Title
No Slide Title

... Diastolic Pressure, Tension, Force, or Length ...
Heart Valve - St. Jude Medical
Heart Valve - St. Jude Medical

... Incompetence: the valve doesn’t close tightly enough to keep blood from backing up into the chamber from which it flowed. ...
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211 Heart Failure notes

... o Same as right side CHF. o Arterial vasoconstriction, also known as increased afterload ...
File
File

... • Regurgitation is leakage of the valve. This means the valve doesn't close completely, causing the blood to flow backward through the valve. This results in leakage of blood back into the atria from the ventricles (in the case of the mitral and tricuspid valves) or leakage of blood back into the ve ...
Overview of Human Anatomy and Physiology: Cardiac Cycle
Overview of Human Anatomy and Physiology: Cardiac Cycle

... Two heart sounds are normally heard through a stethoscope placed on the chest wall. These sounds result from vibrations caused by the closure of the heart valves. The first sound is associated with the closure of the AV valves at the beginning of systole and is described as a soft, low-pitched “lub” ...
acute myocardial infarction in an elderly patient with severe aortic
acute myocardial infarction in an elderly patient with severe aortic

... This impairment could be secondary to perimyocytic fibrosis12 and reduced capillary ingrowth into the hypertrophied myocardium4. Additionally, the increased filling pressure needed to distend the thickened ventricular wall compresses the endocardium, further impairing blood flow to that layer of the ...
Understanding Heart Failure
Understanding Heart Failure

... Severity of valve dysfunction: for both stenotic and regurgitant valve problems, the valve is normally monitored until there is severe dysfunction or if there are symptoms due to the valve problem. This is because most valve problems due not cause problems until they are severe and develop slowly ov ...
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Aortic stenosis



Aortic stenosis (AS) is the narrowing of the exit of the left ventricle of the heart such that problems result. It may occur at the aortic valve as well as above and below this level. It typically gets worse over time. Symptoms often come on gradually with a decreased ability to exercise often occurring first. If heart failure, loss of consciousness, or heart related chest pain occurs due to AS the outcomes are worse. Loss of consciousness typically occurs with standing or exercise. Signs of heart failure include shortness of breath especially with lying down, at night, and with exercise as well as swelling of the legs. Thickening of the valve without narrowing is known as aortic sclerosis.Causes include being born with a bicuspid aortic valve and rheumatic fever. A bicuspid aortic valve affects about one to two percent of the population while rheumatic heart disease mostly occurring in the developing world. A normal valve, however, may also harden over the decades. Risk factors are similar to those of coronary artery disease and include smoking, high blood pressure, high cholesterol, diabetes, and being male. The aortic valve usually has three leaflets and is located between the left ventricle of the heart and the aorta. AS typically results in a heart murmur. Its severity can be divided into mild, moderate, severe, and very severe based on ultrasound of the heart findings.Aortic stenosis is typically followed using repeated ultrasounds. Once it has become severe treatment primarily involves valve replacement surgery with transcatheter aortic valve replacement (TAVR) being an option in some who are at high risk from surgery. Valves may either be mechanical or bioprosthetic with each having risks and benefits. Another less invasive procedure, balloon aortic valvuloplasty (BAV) may result in benefit but this is for only for a few months. Complications like heart failure may be treated as per normal in those with mild to moderate AS. In those with severe disease a number of medications should be avoided including ACE inhibitors, nitroglycerin, and some beta blockers. Nitroprusside or phenylephrine may be used in those with decompensated heart failure depending on the blood pressure.Aortic stenosis is the most common valvular heart disease in the developed world. It affects about 2% of people who are over 65 years of age. Estimated rates are not known in most of the developing world as of 2014. In those who have symptoms, without repair, the chance of death at five years is about 50% and at 10 years is about 90%. Aortic stenosis was first described by French physician Lazare Rivière in 1663.
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