Ventricle in Medical News

Nuclear stress test can detect more than blockages

... flows into the heart's pumping chamber the left ventricle they can determine if a patient's left ventricle is having trouble. When the ventricle fails to properly fill with blood because it's ...

Biological marker for Alzheimer's holds promise for earlier diagnosis and treatment

... Previous research has shown the link between ventricle size and Alzheimer's over longer time intervals. ... at Robarts Research Institute shows that ventricle size increases with mild cognitive impairment ... imaging (MRI) to measure changes in brain ventricle size, we may be able to provide earlier and more ...

New Heart Ultrasound Research Shows Hope for Diagnosing and Treating Fatal Heart Conditions

... with a disproportionately smaller left ventricle than right ventricle (L-R/VD) in the fetus is a strong marker for ... Doppler restrictive filling of the left ventricle (LV) is an accurate predictor of survival ...

First Mosaic laureate to gain doctorate for work on heart function

... blood pressure in the lungs die because the right ventricle is not capable of pumping blood against this pressure. Further, the right ventricle needs a longer rest phase between each pumping ... the resting phase is also affected. The right ventricle of a patient with pulmonary hypertension needs a ...

VEGF neutralization can damage brain vessels, say Schepens Eye Research Institute scientists

... lining that prevents fluid from leaking from the ventricle into the brain. The ventricle is the structure in the brain that holds cerebral ... cells that create a seal between the brain and ventricle and thus prevent fluid from leaking into the ...

Artificial pump effectively backs up failing hearts

... the chest cavity near the heart and is connected to the heart's left ventricle (pumping chamber). It assists the patient's weakened or damaged ventricle in pumping blood through the body. By restoring a normal blood flow, the ...

New Surgery for Heart Failure Proves Ineffective

... has found. The hope was that by isolating the damaged part of the left ventricle -- the chamber of the heart that pumps blood to the body -- people would ... 19 percent less "end-systolic volume" -- the amount of blood left in the ventricle after contraction and before it starts filling again. This compared with 6 ...

Abnormal Heart Function Reduces Exercise Capacity

... diastolic function (when the heart is relaxed and expanded) in the left ventricle have a substantially lower maximum capacity for exercise. The left ventricle is one of the four chambers of the heart. The study included nearly ...

Northwestern Memorial trials implantable device to manage congestive heart failure symptoms

... which is the underlying cause. "The goal of the study is to return the ventricle to a normal shape, decrease heart failure symptoms and prevent the heart ... California, resembles an upside down parachute, is implanted in the left ventricle using a catheter which is inserted via a tube in the participant's leg ...

Serum sodium predicts mortality 10 times higher in PAH patients

... syndrome marked by narrowing of the arteries in the lungs. Thus, the right ventricle of the heart has to work increasingly hard to pump blood into the lungs for reoxygenation. "The ability of the right ventricle to adapt to this increasing workload is the single most important ...

Catheter repair of mitral valve improves heart size, symptoms

... valve is not only reducing the abnormal backflow of blood from the left ventricle to the left atrium, it is helping to shrink the enlarged, overworked heart ... opening that permits blood flow from the left atrium to the left ventricle during relaxation of the heart, and enables the valve flaps to close more ...

SEISMIC study issues glum report on cell therapy

... fractionor the portion of blood the heart is able to pump from the left ventricle with each contractionwas 41.5 percent. At six-month follow-up, the left ... to myoblast injection. Instead, at six months, the diameter of the left ventricle was larger in the cell-therapy group than the control group (54.5 mm vs. ...

VEGF Neutralization Can Damage Brain Vessels, Say Schepens Eye Research Institute Scientists

... that prevents fluid from leaking from the ventricle into the brain. The ventricle is the structure in the brain that holds cerebral spinal fluid after it is ... protects the specialized cells that create a seal between the brain and ventricle and thus prevent fluid from leaking into the brain. When VEGF was blocked ...

Percutaneous valve therapy: is it safe and effective?

... to the valve implant in this high-risk population. Successful left ventricle remodeling with new percutaneous valve device Mitral insufficiency (abnormal blood leakage from the left ventricle through the mitral valve into the left atrium), when severe, may lead to ...

NYC-area 1st: Morgan Stanley Children's Hospital performs transcatheter pulmonary valve replacement

... tube with a valve inside) to open the connection between their right ventricle and pulmonary artery. But because the conduit's lifespan is limited by ... heart disease have defects disrupting the blood flow from the right ventricle to the pulmonary artery. For patients with this condition, their heart ...

Freshly crushed garlic better for the heart than processed

... of oxygen, but the fresh garlic group had a significantly greater effect on restoring good blood flow in the aorta and increased pressure in the left ventricle of the heart," Das said. ...

New strategies to improve treatment and ultimately prevent heart failure in children

... symposium focused on the growth of the ventricular wall in development and disease, and on the diagnosis and treatment of non-compaction of the left ventricle - an abnormality of the major pumping chamber of the heart which often leads to heart failure. Both are areas of ongoing study by the Riley Heart ...

Cell transplantation and cardiac repair

... artery vein (ICV). Researchers used radiolabeled cells to evaluate cell distribution patterns in the heart and their relationship with left ventricle function improvement. "BMMNC retention by damaged heart tissue was apparently higher when the anterograde approach was used, although further ...

New Heart Valve Repair System Tested for Safety

... (PTMA) system, which is installed via a catheter. In the heart, the mitral valve controls the flow of blood from the left atrium into the left ventricle (from the upper left chamber into the lower left chamber). A leaking mitral valve causes blood to flow back into the left atrium. This condition can ...

Atrial fibrillation in endurance athletes still poses problems for sports cardiologists

... introduced technique which identifies the signals causing the atrial fibrillation and isolates their source in the pulmonary veins from the left ventricle of the heart. The technique has been successfully used in routine patients with atrial fibrillation and, according to new data presented here in ...

AGH Joins Select Group of Medical Centers in Study of Promising New Technology for Treatment of Heart Failure

... automobile fuel pump regulates the flow of gasoline to the vehicle’s engine, an LVAD functions via a tube connected to the heart’s left ventricle that pulls blood into the pump, where it is then propelled through the aorta - the primary vessel that circulates blood throughout the body. The ...

First heart patients implanted with next-generation mechanical heart pump

... is the number one reason for hospitalization. Mechanical heart pumps like the DuraHeart are designed to help the heart pump blood from the left ventricle to the aorta, increasing flow throughout the body. Previous research has shown the approach can help alleviate symptoms and improve survival. The ...

Expert consensus on catheter ablation of ventricular arrhythmias

... inserting catheters (thin flexible wires) into blood vessels, usually in the groin, and threading them through the blood vessels into the heart ventricle under X-ray guidance. The next step is for the electrophysiologist to use the catheter to identify the source of the abnormal electrical activity ...

Estrogen May Help Men's Hearts

... heart failure and a left ventricular ejection fraction of 28 percent. Ejection fraction is a measure of how well the heart is pumping, and the left ventricle is the heart's main pumping chamber. A normal left ventricular ejection fraction would be between 55 percent and 70 percent, according to the ...

Device Offers Hope for Patients With Leaky Heart Valve

... device safely treated leaky mitral valves even in patients with moderate-to-severe heart failure and reduced the backward flow of blood from the left ventricle to the left atrium. After treatment, patients experienced less shortness of breath and reported a better quality of life, according to the study, ...

Smallest full support heart assist device on trial at Northwestern Memorial

... have been enrolled in the U.S to date. "The small size and unique configuration of this particular model allows us to place it adjacent to the ventricle itself, as opposed to implanting the device in the abdominal wall," commented Dr. McGee. "This is a major step forward, as it is intended to reduce ...

Siemens Demonstrates Workflow Efficiency in Echocardiography at ACC 2009

... for comprehensive cardiac assessment, such as syngo (R) Auto Left Heart with expert-like measurements of ejection fraction and volumes of the left ventricle and atrium. Improved Stress Echo capabilities as well as compatibility with ACUSON AcuNav(TM) intracardiac ultrasound catheters and transesophageal ...

Danon Disease Can Be Quickly Fatal, Study Finds

... heartbeat accompanied by irregular heartbeat. The final electrocardiograms examined by the researchers showed significant enlargement of the left ventricle in all seven, the study reported. "The clinical course of these seven patients with LAMP2 mutations provides important insights regarding ...

Defibrillator May Not Help Many With Heart Failure

... medications. That report, in the American Journal of Cardiology applied to people over 80 who have the form of heart failure in which the left ventricle fails to relax after a beat. Cardiologists from Cedars-Sinai Heart Institute in Los Angeles, who conducted the study, also urged doctors to be ...

Blacks, Hispanics Less Apt to Get Best Heart Failure Care

... (CRT), a newer approach that relies on a special pacemaker that realigns heartbeats whenever the normally simultaneous pulsing of the right and left ventricle falls out of sync. Farmer's team, which reports the finding in the March issue of Heart Rhythm Journal , noted that the combined treatment, known ...

Mount Sinai first in US to implant FDA-cleared ring for mitral valve repair

... quality of valve repair in patients suffering from mitral valve disease," said Dr. Adams. The mitral valve lies between the left atrium and left ventricle of the heart. It prevents blood from leaking back into the left atrium during ejection (systole). Mitral valve regurgitation occurs when the valve ...

Diagnosoft(R) Secures $4 Million in Financing and Appoints a New President and CEO

... Dr. Jerry Prince, Diagnosoft co-founder and colleague of Dr. Stuber at Johns Hopkins University , "There are many techniques for analyzing the left ventricle of the heart -- ECHO, nuclear medicine, CT, and so -- but we are focused on the emerging technology of MRI for the cardiac market. We are kind of a ...

Vitamin D Vital for the Heart

... America Heart Institute in Kansas City. "It is associated with major risk factors such as high blood pressure, diabetes and stiffening of the left ventricle of the heart and blood vessels. Inflammation is really important for heart disease, and people with vitamin D deficiency have increased ...

U of U researchers to use patient's own stem cells to treat heart failure

... of cells that will help the heart muscle and improve blood flow. Two weeks later, the patient's stem cells will be injected directly into the left ventricle of the heart during a minimally invasive surgery developed by Amit N. Patel, M.D., national principal investigator for the IMPACT-DCM trial and ...

Stem cell regeneration repairs congenital heart defect

... is typical of patients with heritable dilated cardiomyopathy. Researchers transplanted 200,000 embryonic stem cells into the wall of the left ventricle of the knockout mice. After one month the treatment improved heart performance, synchronized electrical impulses and stopped heart deterioration, ...

Patch Helps Mend Damaged Hearts

... heart failure." After a heart attack, he explained, there is abnormal enlargement of the left ventricle, which pumps blood to the body. The ventricle also works harder, which can ultimately lead to heart failure. Applying the patch to rats after a heart attack, "we were able to prevent the ...

LUMEDX Introduces Next Generation Cardiology PACS Solution

... SPECT -- at one workstation * Real-time access to images from any connected location, onsite or off * Advanced, integrated analysis tools: Left ventricle angiography analysis; quantitative coronary angiography analysis; cardiac and vascular ultrasound analysis; intravascular ultrasound analysis * ...

Gender differences and heart disease

... losartan and atenolol -- for the reduction of left-ventricular hypertrophy (LVH). The condition is a thickening and enlargement of muscle of the left ventricle of the heart and a marker for future heart disease. The observations were made despite results showing that blood pressure reduction was similar ...

Low Blood Sodium Predicts Mortality in PAH Patients

... in patients with pulmonary arterial hypertension (PAH). PAH, a syndrome marked by narrowing of the arteries in the lungs, causes the right ventricle of the heart to work harder to pump blood into the lungs for reoxygenation. "This is the first study to show the powerful prognostic ...

Evalve MitraClip: Clinical trial of nonsurgical repair for severe mitral valve regurgitation

... backward into the atrium (regurgitation), leaving the left ventricle, the heart's primary pumping chamber, with too little blood. To compensate, the ventricle stretches and overworks. Over time, it undergoes a process called remodeling, becoming enlarged, distorted and weak. The MitraClip procedure is ...