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.
The risk for hyperkalemia after succinylcholine use for urgent tracheal intubation increases the longer patients remain in the intensive care unit, research shows.
Study findings based on observations from a sleep clinic in Brazil indicate that obstructive sleep apnea may worsen during the winter months.
Avanir Pharmaceuticals, Inc. announced today that the United States Patent and Trademark Office (USPTO) has allowed a new patent that covers Avanir's product NUEDEXTA, further expanding the intellectual property portfolio for the company's lead commercial asset.
Spinal fusion does not significantly increase the risk for stroke in the 3 years following surgery, research from Taiwan suggests.
Daily omega 3 supplementation may not reduce risk for cardiovascular events in high-risk patients, show study findings.
A cutting-edge method developed at the University of Michigan Center for Arrhythmia Research successfully uses stem cells to create heart cells capable of mimicking the heart's crucial squeezing action.
Sustained ventricular fibrillation or tachycardia in patients admitted with non-ST-segment elevation acute coronary syndrome are uncommon but worsen patients’ prognosis markedly if they do develop, researchers report.
Atrial fibrillation (AF) is the most frequently sustained arrhythmia of the heart. It affects several million people in Europe. AF causes a loss of contraction in the atria and gives rise to heart failure. Moreover, it is associated with a high risk of stroke. One in five strokes is due to AF.
Endosense,a pioneer and leader in force-sensing technology focused on improving the efficacy and safety of catheter ablation for the treatment of cardiac arrhythmias, has announced enrollment completion in the TOCCASTAR clinical study.
eCardio Diagnostics, a leading provider of remote cardiac arrhythmia monitoring, was among eight corporate sponsors teaming up with the Heart Rhythm Society to raise the level of awareness for heart rhythm disorders, particularly Atrial Fibrillation (AF) and Sudden Cardiac Arrest.
Micah True, legendary ultra-marathoner, died suddenly while on a routine 12-mile training run March 27, 2012. The mythic Caballo Blanco in the best-selling book, Born to Run, True would run as far as 100 miles in a day. On autopsy his heart was enlarged and scarred; he died of a lethal arrhythmia (irregularity of the heart rhythm). Although speculative, the pathologic changes in the heart of this 58 year-old veteran extreme endurance athlete may have been manifestations of "Phidippides cardiomyopathy," a condition caused by chronic excessive endurance exercise.
Results observed from pre-specified interim analyses of the randomized, placebo-controlled Phase 3 study, COU-AA-302, demonstrated that patients with metastatic castration-resistant prostate cancer (mCRPC) treated with abiraterone acetate (ZYTIGA) plus prednisone showed a statistically significant improvement in radiographic progression-free survival (rPFS) and all secondary endpoints compared to patients treated with placebo plus prednisone.
The term "holiday heart syndrome" was coined in a 1978 study to describe patients with atrial fibrillation who experienced a common and potentially dangerous form of heart palpitation after excessive drinking, which can be common during the winter holiday season. The symptoms usually went away when the revelers stopped drinking. Now, research from UCSF builds on that finding, establishing a stronger causal link between alcohol consumption and serious palpitations in patients with atrial fibrillation, the most common form of arrhythmia.
Advanced Cardiac Therapeutics, Inc., a developer of innovative temperature-sensing cardiac ablation systems, today announced results of several studies related to the company's TEMPASURE cardiac ablation catheter.
Two studies that included adults with obstructive sleep apnea examined the effectiveness of reducing the risk of cardiovascular outcomes, including high blood pressure, by treatment with continuous positive airway pressure (CPAP), according to the articles in the May 23/30 issue of JAMA.
Use of inhaled anticholinergics (IACs) has been associated with an increased risk of potentially dangerous heart arrhythmias among young asthma patients, according to a study conducted by researchers at the University of Illinois at Chicago.
The American Association of Critical-Care Nurses (AACN) will present the Flame of Excellence Award to Carol Jacobson, RN, MN, for her efforts to educate progressive care and critical care nurses in the care of patients with cardiac disease.
Even though hundreds of thousands more people finished grueling 26.2 mile marathons in the United States in 2009 compared to a decade earlier, a runner's risk of dying during or soon after the race has remained very low — about .75 per 100,000, new Johns Hopkins research suggests. Men, however, were twice as likely to die as women.
Even though hundreds of thousands more people finished grueling 26.2 mile marathons in the United States in 2009 compared to a decade earlier, a runner’s risk of dying during or soon after the race has remained very low — about .75 per 100,000, new Johns Hopkins research suggests. Men, however, were twice as likely to die as women.
A large cohort study has found that the strongest risk factors for atrial fibrillation in both men and women were a history of palpitations and hypertension. While hypertension is a well known risk factor for AF, the investigators note that "the impact of self-reported palpitations on later occurrence of AF has not been documented earlier".
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