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.
Stem cells are heavily studied around the world with the hope to revive damaged body parts unable to regenerate itself. Injured heart muscles are one of these areas which remain impaired in adults who have experienced heart attacks.
How does measuring our sleep, exercise and heart rates using various apps and fitness watches affect us? Self-quantifying may better the understanding of our individual health, but according to a new study, it also gives rise to anxiety.
When people seek emergency care for shortness of breath, a routine electrocardiogram (ECG or EKG) enhanced by artificial intelligence (AI) is better than standard blood tests at determining if the cause is heart failure, according to new research published today in Circulation: Arrhythmia and Electrophysiology, an American Heart Association journal.
COVID-19 is shown to impact the heart and, in some cases, have long-lasting cardiac effects. To discover the extent to which COVID-19 affects the heart, cardiologists and researchers with the University of Miami Miller School of Medicine have begun multiple studies.
Autism spectrum disorder (ASD) is a heterogeneous disorder initiated early in development and characterized by abnormal social communication. Accumulating evidence supports the idea that specific mutations affect regulatory proteins that control arrays of cellular pathways.
The Faculty of Medicine has awarded 58 clinical research chairs to top clinician-scientists in a five-year, $40 million investment to drive clinical research excellence and enhance health and patient care.
According to new research, the use of hydroxychloroquine among outpatients in clinical trials, without high-risk factors for cardiac arrhythmia, is safe.
A compound commonly found in pickled capers has been shown to activate proteins required for normal human brain and heart activity, and may even lead to future therapies for the treatment of epilepsy and abnormal heart rhythms.
A person's sensitivity to external stimuli depends not only on the state of their nervous system, but also on their cardiac cycle.
Two new studies examine the health and outcomes of patients with COVID-19 who have undergone kidney transplantation or are receiving hemodialysis. The findings appear in an upcoming issue of CJASN.
A study conducted by German researchers has shown that the neurological symptoms observed in some patients with coronavirus disease 2019 (COVID-19) may be caused by autoantibodies targeting the brain.
Clinician scientists at RCSI University of Medicine and Health Sciences have begun a clinical trial of a promising therapy for critically ill COVID-19 patients in intensive care.
Long-term morbidity as well as a lower level of education and employment rate are common among adults who underwent congenital heart surgery during childhood, regardless of the severity of the defect.
Following the recent publication of a study in the New England Journal of Medicine that further confirms the elevated risk of in-hospital death amongst COVID-19 patients with concomitant cardiovascular disease;
A patient who met many of the published safety guidelines for chloroquine therapy against COVID-19 was observed to have a very abnormal ECG pattern after treatment began, leading to multiple episodes of torsade de pointes (TdP), a life-threatening arrhythmia in which the lower chambers of the heart beat out of sync with the upper chambers.
Nearly one out of every 10 African Americans has a genetic variant that puts them inherently at an increased risk for ventricular arrhythmias and sudden cardiac death.
Use the right tool for the job. Today experts outline the best way to identify people most likely to develop common and devastating heart rhythm disorders.
The malaria drug hydroxychloroquine, which has been promoted as a potential treatment for Covid-19, is known to have potentially serious effects on heart rhythms.
Status epilepticus (SE) is the most common neurologic emergency, with rates estimated between 1.3 and 81 cases per 100,000 people per year.
A large observational study suggests that treatment with the antimalarial drug chloroquine or its analog hydroxychloroquine (taken with or without the antibiotics azithromycin or clarithromycin) offers no benefit for patients with COVID-19.