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Equipment used by doctors and dentists can affect pacemakers. [7] Magnetic resonance imaging (MRI) uses a powerful magnet to produce images of internal organs and their functions. Metal objects are attracted to the magnet and are normally not allowed near MRI machines. The magnet can interrupt the pacing and inhibit the output of pacemakers.
For some sports and physical activities, special pacemaker protection can be worn to prevent possible injuries, or damage to the pacemaker leads. Pacemakers may be affected by magnetic or electromagnetic fields, and ionising and acoustic radiation. However, a 2013 study found that "The overall risk of clinically significant adverse events ...
Hemopericardium can be diagnosed using echocardiography, a cardiac ultrasound. [6] Chest X-rays are also often taken when hemopericardium is suspected and would reveal an enlarged heart. [6] Other observable signs include rapid heart rate, jugular venous distension, low blood pressure, and pulsus paradoxus. [6]
An artificial cardiac pacemaker (or artificial pacemaker, so as not to be confused with the natural cardiac pacemaker) or just pacemaker is an implanted medical device that generates electrical impulses delivered by electrodes to the chambers of the heart either the upper atria, or lower ventricles to cause the targeted chambers to contract and ...
It can have many potential causes, including genetics, lifestyle habits, and underlying health issues. Some types of cardiovascular disease, such as some cardiomyopathies, develop due to factors ...
Contrast-enhanced ultrasound-using gas-filled microbubble contrast media can be used to improve velocity or other flow-related medical measurements. An advantage of Doppler echocardiography is that it can be used to measure blood flow within the heart without invasive procedures such as cardiac catheterization.
[17] [18] [19] The name pacemaker syndrome was first coined by Erbel in 1979. [18] [20] Since its first discovery, there have been many definitions of pacemaker syndrome, and the understanding of the cause of pacemaker syndrome is still under investigation. In a general sense, pacemaker syndrome can be defined as the symptoms associated with ...
Pacemakers are also sometimes used to regulate the heartbeats in people with congenital heart disease, a group of conditions that affect about 1% of people born in the U.S., according to the ...