Current Arrhythmia News and Events

Current Arrhythmia News and Events, Arrhythmia News Articles.
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Heartbeat secrets unlocked as cardiac rhythm gene role identified
Researchers have used the zebrafish (Danio rerio) to identify the role of a gene involved in cardiac rhythm, which could help explain the fundamentals of what it takes to make a human heartbeat. (2021-02-15)

Study finds alligator hearts keep beating no matter what
A new study reported by Georgia Tech researchers finds that an alligator heart will not fibrillate when exposed to drastic temperature changes, unlike a rabbit (mammal) heart, which is critically vulnerable to heart trauma under those conditions. The research could help better understand how the heart works and what can cause a deadly arrhythmia - which fundamentally happens when the heart doesn't pump blood correctly any longer. (2021-02-15)

Predictive value of blood pressure, heart rate, and blood pressure/heart rate ratio in a Chinese subpopulation with vasovagal syncope
In a new publication from Cardiovascular Innovations and Applications; DOI https://doi.org/10.15212/CVIA.2019.1266, Zhuzhi Wen, Jingying Hou, Zun Mai, Huifen Huang, Yangxin Chen, Dengfeng Geng and Jingfeng Wang from Sun Yat-sen University, Guangzhou, China and Guandong Province Key Laboratory of Arrhythmia and Electrophysiology, Guangzhou, China consider predictive value of blood pressure, heart rate, and blood pressure/heart rate ratio in a Chinese subpopulation with vasovagal syncope. (2021-01-22)

Breathing rate predicts therapeutic benefits for heart patients
Conditions causing arrhythmia are among the most common cardiac conditions. A study headed by Prof. Georg Schmidt of the Technical University of Munich (TUM) has demonstrated for the first time that the nocturnal respiratory rate can help with an important prediction: It is an indicator of whether a defibrillator will help to extend the life of patients with arrhythmia. (2020-12-21)

Implantation of an S-ICD in a patient with a DDD pacemaker and congenitally corrected transposition
Implantation of an S-ICD in a Patient with a DDD Pacemaker and Congenitally Corrected Transposition of the Great Arteries. In a new publication from Cardiovascular Innovations and Applications; DOI https://doi.org/10.15212/CVIA.2019.0597, Yu Zhang, Wen-Long Dai, Can-Can Lin, Qiao-Yuan Li and Cheng-Jun Guo from Beijing Anzhen Hospital, Capital Medical University, Beijing, China consider implantation of an S-ICD in a patient with a DDD pacemaker and congenitally corrected transposition of the great arteries. (2020-11-19)

Higher fitness levels linked to lower AFib risk in male, African American veterans
Higher fitness levels reduced the risk of developing an irregular heart rhythm, known as atrial fibrillation or AFib, by 30% to 50% in a study of male, African American veterans. Although only male, African American veterans were included in the study, researchers note the results suggest physical activity may reduce the risk of developing AFib among all adults. (2020-11-09)

Hydroxychloroquine not linked to longer heart rhythm intervals in RA or lupus patientsti
New research presented at ACR Convergence, the American College of Rheumatology's annual meeting, discovers that use of hydroxychloroquine, a generic drug, does not cause any significant differences in QTc length or prolonged QTc, key measures of heart rate, in people with rheumatoid arthritis (RA) or systemic lupus erythematosus. (2020-11-06)

Implantable device can monitor and treat heart disease
Cunjiang Yu, Bill D. Cook Associate Professor of Mechanical Engineering at UH, led a group of researchers that has reported developing a cardiac patch made from fully rubbery electronics that can be placed directly on the heart to collect electrophysiological activity, temperature, heartbeat and other indicators, all at the same time. (2020-11-03)

Machine learning helps pinpoint sources of the most common cardiac arrhythmia
Researchers have designed a new ML-based approach for detecting atrial fibrillation drivers, small patches of the heart muscle that are hypothesized to cause this most common type of cardiac arrhythmia. The team tested their approach on 11 explanted human hearts, all donated posthumously for research purposes. Turned out, that their ML model can indeed efficiently interpret data with an accuracy of up to 81%. (2020-10-29)

Shot of alcohol can help an irregular heartbeat
Research out in this week's issue of JAMA confirms the success of a treatment for persistent atrial fibrillation (AFib) that combines the standard treatment, catheter ablation, with a separate infusion of ethanol, or alcohol, to the vein of Marshall. (2020-10-28)

Journal series gives in-depth look at COVID-19's impact on the heart
Since the emergence of the COVID-19 pandemic, the impact of the virus on the heart has become more prevalent, with clinicians acting in real time to effectively help heart disease patients and those at higher risk who contract coronavirus. The Journal of the American College of Cardiology has issued a three-part focus seminar on COVID-19 in 2020 to address the complex relationship between COVID-19 and the heart. (2020-10-19)

Exosome treatment improves recovery from heart attacks in a preclinical study
Research in pigs shows that using the exosomes naturally produced from a mixture of heart muscle cells, endothelial cells and smooth muscle cells -- which were all derived from human induced pluripotent stem cells -- yields regenerative benefits equivalent to the injected human induced pluripotent stem cell-cardiac cells. (2020-09-29)

Identifying, preventing and managing heart rhythm side effects of medicines
Arrhythmias are irregular heartbeats and can be caused by a variety of factors, such as genetics, heart disease, high blood pressure or electrolyte imbalances. Many commonly used medications, including over-the-counter medicines, can cause or worsen arrhythmias. Health care professionals should consider that a patient's arrhythmia may be caused or worsened by a medication. (2020-09-15)

Heart regeneration using stem cells: Why irregular heartbeats occur after transplantation
Increased predominance of the matured ventricular subtype in embryonic stem cell-derived cardiomyocytes in vivo elucidated why arrhythmia occurs post-transplant of hESC-CMs. (2020-08-05)

Arrhythmia-free survival is indeed survival of the fittest
In a new study, investigators report that patients undergoing atrial fibrillation (AF) ablation, who are physically fit before the procedure, have a much higher chance of benefiting from the procedure and remaining in normal sinus rhythm. Less fit patients are rehospitalized more often, continue to use antiarrhythmic therapies longer, and have higher death rates than fitter patients. Their results appear in Heart Rhythm. (2020-08-03)

Alcohol abuse may raise risk of death in patients with abnormal heart rhythms
Among patients hospitalized with abnormal heart rhythms, those with alcohol abuse were 72% more likely to die before being discharged. Strategies to reduce problematic alcohol use may improve the health of patients with irregular heart rhythms and other heart problems. (2020-07-27)

Machining the heart: New predictor for helping to beat chronic heart failure
Researchers from Kanazawa University have used machine learning to predict which classes of chronic heart failure patients are most likely to experience heart failure death, and which are most likely to develop an arrhythmic death or sudden cardiac death. If confirmed in a larger study, these results will help doctors extend the life of patients worldwide. (2020-07-16)

Feeling with the heart
A person's sensitivity to external stimuli depends not only on the state of their nervous system, but also on their cardiac cycle. Usually we do not notice our heartbeat, paying attention to it only in unusual situations, such as in moments of excitement before a performance or while experiencing arrhythmia. The brain actively suppresses the perception of our heartbeat, but as a result, our perception of other sensory stimuli may also be affected. (2020-07-09)

New algorithm for personalized models of human cardiac electrophysiology
Researchers from the Moscow Institute of Physics and Technology, Kazan Federal University, and George Washington University have proposed an algorithm for producing patient-specific mathematical models describing the electrical excitation of human heart cells. The study looks at two possible approaches -- one using experimental records of electrical activity and the other based on gene expression profiles. (2020-07-02)

Even minor heart defects are associated with long-term problems in adulthood
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. (2020-06-29)

Virginia Tech scientists confirm usually harmless virus attacks the heart's electrical system
Virginia Tech researchers studying how a usually benign virus attacks the human heart with sometimes fatal consequences determined that the virus disrupts the heart's electrical system -- and with dual impacts not previously recognized. (2020-06-22)

Who is at risk of heart rhythm disorders?
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 advice is published in EP Europace, a journal of the European Society of Cardiology (ESC) and presented on EHRA Essentials 4 You, a scientific platform of the ESC. (2020-06-15)

Use of unproven COVID-19 therapies by African American patients poses risks
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. Writing in the journal Heart Rhythm, the official publication of the Heart Rhythm Society and the Cardiac Electrophysiology Society, published by Elsevier, investigators observe that along with socioeconomic and cultural factors, this genetic risk factor may contribute to the racial health disparities that have been documented in victims of the COVID-19 pandemic. (2020-06-15)

Study shows hydroxychloroquine's harmful effects on heart rhythm
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. Now, a team of researchers has used an optical mapping system to observe exactly how the drug creates serious disturbances in the electrical signals that govern heartbeat. (2020-05-30)

No improvement in death rate for COVID-19 patients who received hydroxychloroquine
A research team led by investigators from Brigham and Women's Hospital has evaluated real-world evidence related to outcomes for COVID-19 patients who were treated with hydroxychloroquine or chloroquine analogues (with or without a macrolide). Investigators found no evidence that either drug regimen reduced the death rate among patients. (2020-05-22)

Computer model predicts how drugs affect heart rhythm
UC Davis Health researchers have developed a computer model to screen drugs for unintended cardiac side effects, especially arrhythmia risk. (2020-04-10)

Drugs considered for COVID-19 can raise risk for dangerous abnormal heart rhythms
As some consider treating coronavirus patients with a combination of the malaria drug hydroxychloroquine and the antibiotic azithromycin, cardiologists are advising caution because both medications can increase the risk for dangerous abnormal heart rhythms, which can in turn lead to cardiac arrest. (2020-04-02)

Ultrasound solves an important clinical problem in diagnosing arrhythmia
Columbia Engineering researchers have used an ultrasound technique they pioneered a decade ago -- electromechanical wave imaging (EWI) -- to accurately localize atrial and ventricular cardiac arrhythmias in adult patients in a double-blinded clinical study. They evaluated the accuracy of EWI for localization of various arrhythmias in all four chambers of the heart prior to catheter ablation: the results showed that EWI correctly predicted 96% of arrhythmia locations as compared with 71% for 12-lead ECGs. (2020-03-25)

Mayo Clinic outlines approach for patients at risk of drug-induced sudden cardiac death in COVID-19
SARS-CoV-2, the virus that causes COVID-19, continues to spread, leading to more than 20,000 deaths worldwide in less than four months. Efforts are progressing to develop a COVID-19 vaccine, but it's still likely 12 to 18 months away. (2020-03-25)

Inherited arrhythmia in young Finnish Leonbergers under investigation
Inherited malignant ventricular arrhythmia is a fairly common disorder among Finnish Leonbergers under three years of age, with the most severe cases potentially resulting in sudden death. Researchers are striving to identify the gene mutation underlying the disorder. (2020-03-10)

New gene mutation associated with Fabry cardiomyopathy
The A143T variant of the GLA gene is associated with an increased risk of Fabry cardiomyopathy, according to a new study. The variant plays a role in lipid metabolism. According to the researchers, patients carrying the mutation and manifesting changes in the heart should initiate treatment to prevent the disease from progressing. (2020-02-13)

Zebrafish teach researchers more about atrial fibrillation
Genetic research in zebrafish at the University of Copenhagen has surprised the researchers behind the study. The results have the potential to change the prevalent perception of the cardiac disorder atrial fibrillation. (2020-01-21)

New research could reduce the risk of sudden cardiac death
New research has shown that by changing the time course of voltage change early in action potential it is possible to both withhold a potentially lethal electrical disturbance and improve the strength of cardiac contraction in heart failure at the same time. (2020-01-20)

Prolonged ECG monitoring of ED patients with syncope is safe alternative to hospitalization
Prolonged cardiac rhythm monitoring will improve arrhythmia diagnostic yield among non-low-risk emergency department patients with syncope. (2020-01-13)

Burnout linked with irregular heartbeat
Feeling excessively tired, devoid of energy, demoralized, and irritable? You may have burnout, a syndrome associated with a potentially deadly heart rhythm disturbance. That's the conclusion of a large study published today in the European Journal of Preventive Cardiology, a journal of the European Society of Cardiology (ESC). (2020-01-13)

Personalized medicine for atrial fibrillation
The study, published in Europace, uses signals from implantable devices -- pacemakers and defibrillators -- to analyze electrical signals in the heart during episodes of atrial fibrillation. (2019-12-16)

Researchers say 30% of patients taking opioids experience adverse drug interactions
A new article outlines common drug-drug interactions that alter how the body metabolizes certain opioids, causing decreased efficacy that ultimately can lead to misuse and overdose. The authors estimate that around 30 percent of patients experience such interactions; however, very few are detected and reported. (2019-12-10)

Can obesity limit antiarrhythmic drug effectiveness?
New study shows that some antiarrhythmic medications used to treat AFib are less effective in patients who are obese. (2019-11-27)

Cannabis may be linked to strokes and heart rhythm disturbances in young people
Young people who reported using cannabis frequently had higher risk of having a stroke, according to a Virginia study. The risk of being hospitalized for arrhythmia was significantly greater among people diagnosed with cannabis use disorder, according to an Oklahoma study. (2019-11-11)

Study finds risk factors tied to drowning-related hospitalizations and death
Approximately 1 in 10 children admitted for injuries related to drowning end up dying despite comprehensive medical care after being admitted to a hospital, according to new research being presented at the American Academy of Pediatrics (AAP) 2019 National Conference & Exhibition. An abstract of the study, 'Predictors of In Hospital Mortality in Drowning and Submersion in Children and Adolescents in the United States: A national inpatient database analysis,' will be presented on Monday, Oct. 28, in the Ernest N. Morial Convention Center. (2019-10-25)

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