Articles tagged with Ventricular Fibrillation
A major international study has identified ways to detect patients with hypertrophic cardiomyopathy at serious risk of sudden death, heart failure or other dangerous outcomes. The findings will help save lives by improving the ability to determine who is at greatest risk and spare low-risk patients from unneeded heart implants.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.