Ventricular Fibrillation
Articles tagged with Ventricular Fibrillation
University of Cincinnati works with local paramedics to advance sudden cardiac arrest research
A University of Cincinnati study proves the feasibility and scalability of collecting blood from patients in cardiac arrest during treatment. The approach, which involves paramedics delivering samples to a biorepository, showed significant variation among patients and underscores the need for further research.
Scar tissue in athletes’ hearts tied to higher risk of dangerous cardiac rhythms
A new study found that scar tissue in the heart of healthy male endurance athletes aged 50 or older may increase their risk of abnormal heart rhythms and sudden cardiac death. The research used magnetic resonance imaging and ECG recorders to track the participants' heart activity over two years.
More people can survive sports-related cardiac arrest
A University of Gothenburg thesis found that survival rates for sports-related cardiac arrest are significantly higher in facilities with CPR, defibrillation, and AEDs. Women fare worse due to delayed CPR starts.
Vigilant monitoring is needed to manage cardiac risks in patients using antipsychotics, doctors say
A new study published in Heart Rhythm found that over 10% of patients taking quetiapine or haloperidol developed heart rhythm disorders. The study highlights the need for vigilant monitoring of patients using these medications to minimize the risk of cardiac complications.
Injectable hydrogel electrodes open door to a novel painless treatment regimen for arrhythmia
Researchers develop injectable hydrogel electrodes for treating ventricular arrhythmia, providing a potential solution to painful defibrillation and improving quality of life. The novel pacing modality addresses the pathophysiology of re-entrant arrhythmia and offers a promising alternative to existing therapies.
Spanish scientists discover a promising therapeutic target for cardiac arrhythmias
Researchers at the CNIC in Madrid have discovered a connection between stress kinases and the development of ventricular fibrillation. The study found that activation of these enzymes alters the electrical properties of cardiomyocytes, triggering arrhythmias.
Commotio cordis is real and awareness can save lives, experts say
A unique case of commotio cordis in a Romanian basketball player highlights the condition's rarity and importance of prompt intervention. The case, validated by ECG and video evidence, underscores the need for awareness and education about this reversible cardiac phenomenon.
AI analysis finds younger AFib patients benefit from MRI-guided ablation treatments
A new study found that younger atrial fibrillation (AFib) patients who underwent MRI-guided ablation treatments had better outcomes. The treatment significantly improved arrhythmia recurrence rates by 50% for patients under 58 years old.
Simulations show weak electrical pulses could treat atrial and ventricular fibrillations
Researchers have developed a new way to time weak electrical pulses that can stop life-threatening arrhythmias like atrial and ventricular fibrillations. The approach, adaptive deceleration pacing, uses a series of weak pulses spaced farther apart over time.
Does Holiday Heart Syndrome, which affects the atria, extend to the ventricles?
An extensive study of over 400,000 individuals found no association between total alcohol consumption and ventricular arrhythmias, contradicting the traditional Holiday Heart Syndrome. Higher spirit intake was linked to an increased risk of ventricular arrhythmias, but not SCDs.
Calculating a dangerous heartbeat
A team of researchers from Flinders University has developed a single mathematical equation that can accurately model and predict the behavior of ventricular fibrillation, a life-threatening heart rhythm. The equation uses principles from renewal theory to predict the population dynamics of 'rotors' found in the heart during VF.
Pacemakers and other cardiac devices can help solve forensic cases
A study found that pacemakers and other cardiac devices can determine the time and cause of death in unclear cases where autopsy fails. The devices revealed this information in 76% of cases, with changes in lead impedance and pacing threshold used to assign the time of death.
Termination of lethal arrhythmia with light
Researchers at the University of Bonn and Johns Hopkins University have developed a new method to stop life-threatening cardiac arrhythmia using light stimuli. The technique shows promise as an alternative to painful electric defibrillation, with potential for implantable optical defibrillators in the future.
Instead of defibrillator's painful jolt, there may be a gentler way to prevent sudden death
Researchers at Johns Hopkins Medicine have found a way to halt life-threatening arrhythmia using lower amplitude, high-frequency alternating current. This approach may prove less painful for patients and could lead to a new device that replaces painful defibrillator shocks.
Research published in NEJM highlights potential benefits of Cameron Health's S-ICD System
The S-ICD System detected 100% of induced and spontaneous episodes of irregular heart rhythms, offering a viable alternative to traditional ICDs. The system's subcutaneous implantation eliminates the need for lead placement in or on the heart, reducing complications associated with current therapy.
Catheter ablation prior to defibrillator shock reduces risk of recurrence of life threatening rapid heartbeat in patients with stable ventricular tachycardia (VTACH study)
A randomized controlled trial shows that catheter ablation before ICD implantation reduces VT recurrence at two years, with a 40% lower risk of repeat VT or VF. Prophylactic catheter ablation may be considered for patients with stable VT and reduced left-ventricular function.
'Chain of survival' saves lives, lessens damage in out-of-hospital cardiac arrest patients in Japan
The 'chain of survival' improved out-of-hospital cardiac arrest survival rates in Japan by increasing bystander CPR, early defibrillator use, and advanced life support. The study found a significant decrease in delay times and an increase in neurologically intact survivors.
Study finds wide variability in survival after emergency treatment for cardiac arrest
A study of emergency medical services-treated cardiac arrest outcomes in 10 areas in North America found a five-fold difference in survival rates. The incidence and outcome of cardiac arrest varied significantly across geographic regions.
AEDs and CPR are equally helpful for sudden cardiac arrest in the home
Researchers found that survival rates were similar between households with an AED and those without, despite underuse of AEDs. The study suggests that both AEDs and CPR are crucial in responding to sudden cardiac arrests at home.
Defibrillators offer safe landing for cardiac arrest
The Chicago HeartSave Program successfully reduced sudden cardiac deaths at O'Hare and Midway Airports by placing AEDs one minute apart, making them easy to spot. The devices helped minimize critical response times to emergency care and improved survival rates for victims of ventricular fibrillation.
Viewing Ventricular Fibrillation: Detailed "Movies" Of Deadly Heart Irregularity May Lead To New Controls
Researchers create detailed 'movies' of deadly heart irregularity, discovering spiral waves that can be controlled using chaos techniques, offering a less energetic alternative to massive jolts.