Word: heartbeating
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...over the day, during which time he keeps a diary of his activities and symptoms. Doctors then analyze both sets of data. If previously unsuspected and potentially dangerous rhythms are detected they can then be treated with either drugs or pacemakers. Introduced in the late 1950s, pacemakers regulate the heartbeat through a steady stream of electrical impulses. Nearly a million people now rely on implanted devices, which last from six to twelve years...
...muscle loss can effectively pump blood. The real killer is disturbances in the heart's rhythm. These are most likely to occur in the first minutes or hours after the attack, caused by irregularities in the flow of electrical signals that control the beat of the heart. The heartbeat may develop abnormal rhythms and degenerate into a useless twitching or quivering. No longer is the heart able to drive blood through the body. Cardiac arrest ensues...
Prompt emergency procedures can help restore normal heartbeat. This may be done by electrical stimulation, drugs or, in the absence of any other medical aid, chest massage. Keeping a list of emergency phone numbers and knowing what hospitals are best equipped to treat coronary cases can save valuable time and perhaps a family member's life. Because every second counts, more and more Americans are learning the life-and-death skills of cardiopulmonary resuscitation...
Curiously, Young's and Crippen's heartbeat patterns reversed on takeoff and landing. Both are normally in the 60s. At launch Young's rose only to 85 beats a minute, while Crippen's soared to 135. Returning, Young's pulse rate zipped up to 130 as he flew the craft in. Crippen's stayed around...
...Examiner Larry Lewman in Portland, Ore., offers several possible explanations. The victims may have suffered from sleep apnea, a disorder characterized by halts, usually brief, in breathing during sleep. Or, as Lewman thinks is more likely, there may have been some disturbance in the electrical conduction system that governs heartbeat. He also notes a similarity to bangungut, or "nightmare" syndrome, a condition that strikes Philippine males and may be related to eating rice or special sauces for meat or fish. "The victims go to bed, thrash and cough and cannot be resuscitated," he says...