An arrhythmia is a problem with the speed or rhythm of the heartbeat. During an arrhythmia, the heart can beat too fast, too slow, or with an irregular rhythm. A heartbeat that is too fast is called tachycardia. A heartbeat that is too slow is called bradycardia. Most arrhythmias are harmless, but some can be serious or even life threatening. When the heart rate is too slow, too fast, or irregular, the heart may not be able to pump enough blood to the body. Lack of blood flow can damage the brain, heart, and other organs.
Doctors now make more informed decisions on how to treat an electrical disorder of the heart - be it with drugs, an implanted device or nothing - thanks to a series of decades-long, Rochester-based studies.
A team of cardiologists at the University of Rochester Medical Center has won a four-year, $2.3 million grant from the National Institutes of Health (NIH) to continue its study of a cardiac condition that places teens at risk for sudden death. With the latest award, the team will have received continuous NIH funding for 23 years - one of the longest, continuous, investigator-initiated research projects at the University of Rochester.
The American Heart Association has named the editor of Circulation: Heart Failure, its second of the planned six-publication extension to the weekly flagship journal, Circulation: Journal of the American Heart Association. The journals will be published by Lippincott Williams & Wilkins, a part of Wolters Kluwer Health.
On the eve of the British Columbia inquiry into the death of Robert Dziekanski, a review of scientific data in CMAJ (Canadian Medical Association Journal) finds that in some cases, stun guns may stimulate the heart in experimental models. This evidence is contrary to current views that stun guns only affect skeletal muscles.
A study, led by University of Iowa researchers, reveals a new dimension for a key heart enzyme and sheds light on an important biological pathway involved in cell death in heart disease.
Nearly two out of three patients have one or more precipitating factors that may contribute to hospital admissions nationwide for heart failure, according to a new UCLA study. Pneumonia, irregular heart beats, and obstructed blood flow to the heart are the most frequent factors.
Dutch researchers at University Medical Center Utrecht and the Hubrecht Institute have succeeded in growing large numbers of stem cells from adult human hearts into new heart muscle cells.
A new nationwide clinician survey provides the first comprehensive look at what is community care or 'treatment as usual' for nonepileptic seizures (NES), laying the groundwork for clinical trials aimed at identifying effective treatments for this neuropsychiatric disorder.
About 40 percent of African-Americans have a genetic variant that can protect them after heart failure and prolong their lives, according to research conducted at Washington University School of Medicine in St. Louis and collaborating institutions.
A recently approved angina drug may also represent a powerful new treatment for a rare hereditary syndrome that places teens at risk for sudden cardiac death, according to research presented on April 1st at the 57th Annual Scientific Sessions of the American College of Cardiology (ACC) in Chicago.
A genetic disorder that can cause a fatal rise in body temperature in some patients undergoing general anesthesia may hold the key to a cure for heat stroke, according to research published in the April 4 edition of the journal Cell.
A recently approved angina drug may also represent a powerful new treatment for a rare hereditary syndrome that places teens at risk for sudden cardiac death, according to research presented at the 57th Annual Scientific Sessions of the American College of Cardiology (ACC) in Chicago.
Last May, a widely reported study concluded that errant electronic noise from iPods can cause implantable cardiac pacemakers to malfunction.
The PhD, defended by engineer Sofia Ruiz de Gauna Gutierrez at the University of the Basque Country (UPV/EHU) puts forward various methods for the elimination of interference caused by compressions and ventilations of cardiopulmonary resuscitation in the context of cardiac defibrillation.
Research funded by the Wellcome Trust has provided a number of promising new drug targets for Huntington's disease, a neurodegenerative disease.
Some medical devices such as implantable cardiac defibrillators and pacemakers are now equipped with wireless technology, allowing for remote device checks and freeing patients from repeated doctor visits.
A research team from the Cedars-Sinai Heart Institute, Johns Hopkins University and China Medical University and Hospital in Taiwan have described for the first time the mechanisms by which variants of a specific gene, CAPON or NOS1AP, can disrupt normal heart rhythm.
Less than one fourth of physicians specializing in geriatrics, internal or family medicine or cardiology believe they can accurately predict the whether patients with heart failure are at risk of dying, new Saint Louis University research found.
An enzyme released by mast cells in the lungs appears to play a key role in the tightening of airways that is a hallmark of asthma pointing to a potential new target for treatment against the illness.
An enzyme released by mast cells in the lungs appears to play a key role in the tightening of airways that is a hallmark of asthma pointing to a potential new target for treatment against the illness.
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