UT Southwestern recruiting patients for heart-failure device studyOctober 18, 2006Physicians at UT Southwestern Medical Center are part of a multinational clinical trial evaluating a unique implantable device designed to treat a larger number of patients with heart failure. UT Southwestern is one of the top enrolling centers of the 50 sites in the United States. The Optimizer System is an implantable pulse generator that delivers electrical impulses to the heart for treatment of moderate to severe heart failure. Unlike other heart-failure devices, the Optimizer works by strengthening the pumping force of the heart. The Optimizer System modulates the strength of the heart's contractions rather than controls its rhythm. "The Optimizer could benefit up to two-thirds of advanced heart-failure patients who may not qualify for other kinds of therapy," said Dr. Jose Joglar, co-investigator of the study and associate professor of medicine in UT Southwestern's Heart, Lung and Vascular Center. Heart failure is a disease that afflicts more than five million Americans and an estimated 15 million patients worldwide and is one of the most common causes of hospitalization. In patients with heart failure, the heart muscle itself is too weak or damaged to pump enough blood through the body. Medications such as beta blockers and other device-based therapies are typically used to treat patients with heart failure. But not all patients respond to these initial therapies. "In spite of the advances made over the last 15 years, heart failure remains a common cause of death or disability," said Dr. Owen Obel, cardiologist and assistant professor of internal medicine. "This novel therapy stimulates the heart as it is beating. This makes each heart beat stronger for the time that the device is activated. It could really improve the quality of life for the many thousands of people worldwide who suffer from severe heart-failure symptoms." Dr. Obel, who heads the electrophysiology and pacing laboratory at the Dallas Veteran Affairs Medical Center, is co-investigator for the UT Southwestern trial and has implanted the devices in the five patients who were selected to the study group receiving the implant. Three additional patients are due to receive the device soon. The study will continue to enroll participants until the end of the year. Patients who qualify for the Optimizer System undergo a surgical procedure similar to putting in a pacemaker. Typically, the surgery takes about four to five hours and requires three leads to be implanted into the heart itself. "We've been enrolling patients for more than a year now and so far our experiences have been good," said Dr. Joglar. Potential study participants, or those who would like more information, should call 214-590-5015. The UT Southwestern Heart, Lung and Vascular Center is a collaborative effort between UT Southwestern faculty and community physicians who unite to bring their clinical and surgical expertise to patients needing cardiac, pulmonary or vascular care. Seamless, individualized care is available for adult congenital heart disease, cardiac imaging, cardiovascular and thoracic surgery, electrophysiology, general cardiology, heart failure, heart and lung transplant, interventional cardiology, interventional radiology, lung transplant pulmonology, mechanical circulatory assistance, preventive cardiology, pulmonary hypertension, and vascular and endovascular surgery. UT Southwestern Medical Center |
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| Related Heart Failure Current Events and Heart Failure News Articles Carvedilol shown to have unique characteristics among beta blockers In a new study, researchers report that a class of heart medications called beta-blockers can have a helpful, or harmful, effect on the heart, depending on their molecular activity. High Blood Pressure Easy to Miss in Children with Kidney Disease Spot blood pressure readings in children with chronic kidney disease often fail to detect hypertension - even during doctor's office visits - increasing a child's risk for serious heart problems, according to research from Johns Hopkins Children's Center and other institutions. A report of the findings appears online in the Journal of American Society of Nephrology. Inhibition of GRK2 is protective against acute cardiac stress injuries Inhibition of a protein known to contribute to heart failure also appears to be protective of the heart in more acute cardiac stress injury, namely ischemia reperfusion. Young athletes need dual screening tests for heart defects, study suggests To best detect early signs of life-threatening heart defects in young athletes, screening programs should include both popular diagnostic tests, not just one of them, according to new research from heart experts at Johns Hopkins. Protein changes in heart strengthen link between Alzheimer's disease and chronic heart failure A team of U.S., Canadian and Italian scientists led by researchers at Johns Hopkins report evidence from studies in animals and humans supporting a link between Alzheimer's disease and chronic heart failure, two of the 10 leading causes of death in the United States. Elevated biomarkers lead to diminished quality of life in heart attack patients post-discharge Many heart attack patients have high levels of cardiac biomarkers in the blood for several months after leaving the hospital, with more shortness of breath and chest pain, according to a Henry Ford Hospital study. Tiny particles can deliver antioxidant enzyme to injured heart cells Researchers at Emory University and the Georgia Institute of Technology have developed microscopic polymer beads that can deliver an antioxidant enzyme made naturally by the body into the heart. New study links vitamin D deficiency to cardiovascular disease and death While mothers have known that feeding their kids milk builds strong bones, a new study by researchers at the Heart Institute at Intermountain Medical Center in Salt Lake City suggests that Vitamin D contributes to a strong and healthy heart as well - and that inadequate levels of the vitamin may significantly increase a person's risk of stroke, heart disease, and death, even among people who've never had heart disease. When seconds count: Interventional radiology treatment for pulmonary embolism saves lives Catheter-directed therapy or catheter-directed thrombolysis-an interventional radiology treatment that uses targeted image-guided drug delivery with specially designed catheters to dissolve dangerous blood clots in the lungs-saves lives and should be considered a first-line treatment option for massive pulmonary embolism, note researchers in the November Journal of Vascular and Interventional Radiology. Texas Children's discharges first pediatric patient with implanted mechanical heart device Texas Children's Hospital is the nation's first pediatric hospital to discharge a child while on an intracorporeal ventricular assist device (VAD), a feat previously accomplished only at adult institutions. More Heart Failure Current Events and Heart Failure News Articles |
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