A cross-sectional study of cardiovascular devices found that most recalled devices did not undergo clinical testing before authorization and were not required to undergo postmarket surveillance studies. The study highlights the need for more rigorous testing and monitoring of these devices to ensure patient safety.
A dual-chamber wireless pacemaker demonstrates reliable performance over three months, synchronizing contraction of the upper and lower heart chambers 98% of the time. The device continues to work well even when patients engage in activities or have elevated heart rates.
Dr. Harish Manyam has developed a groundbreaking system that addresses potentially dangerous problems associated with traditional pacemakers and defibrillators. The leadless pacemaker, in combination with a novel subcutaneous defibrillator, eliminates the need for lead extraction procedures.
Researchers designed a hybrid metamaterial slab for cardiac pacemakers, achieving an efficiency of 62.39% at 20mm transmission distance. The structure also showed superior magnetic leakage shielding performance in finite element simulations.
Researchers found that the heart influences our sense of time, causing it to stretch or shrink with each heartbeat. The study used electrocardiography to measure heart activity and showed that temporal wrinkles in time perception are synchronized with heartbeats.
A preclinical study suggests that SARS-CoV-2 infection can cause ferroptosis in pacemaker cells, leading to cardiac arrhythmias. Researchers used animal models and human stem cell-derived pacemaker cells to demonstrate the virus's impact on these cells.
Researchers are working to detect malware in implanted medical devices, which can pose risks to patients. UA engineer Roman Lysecky is pioneering technologies to enable IMDs to detect malware and continue functioning properly despite security breaches.
A leadless cardiac pacemaker demonstrated good safety and reliable function in a six-month study. The device effectively captured heart rhythms and had a low rate of serious adverse device effects, suggesting it can be used as an alternative to conventional transvenous pacemakers.
The new pacemaker eliminates the need for battery replacement and leads, tackling two major disadvantages of traditional pacemakers. Researchers successfully tested the system in domestic pig experiments, allowing for batteryless overdrive-pacing at 130 beats per minute.
A research team from KAIST has developed a self-powered artificial cardiac pacemaker that operates semi-permanently using flexible piezoelectric nanogenerators. This technology prolongs the lifetime of pacemaker batteries, reducing the need for frequent replacements and minimizing surgical risks.
A study reveals that the acetylcholine-activated inward-rectifying potassium current (IKACh) plays a critical role in regulating cardiac pacemaker activity and heart rate. The research found that mice lacking IKACh displayed a moderate increase in resting heart rate and delayed recovery after stress or exercise.
A recent study led by Howard Bassen found no electromagnetic interference from iPods on pacemaker users. Researchers tested four different iPod models and measured magnetic fields and voltages within pacemakers, with all results showing no effects.