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Cardioversion is a medical procedure by which an abnormally fast heart rate (tachycardia) or other cardiac arrhythmia is converted to a normal rhythm using electricity or drugs. Synchronized electrical cardioversion uses a therapeutic dose of electric current to the heart at a specific moment in the cardiac cycle , restoring the activity of the ...
Commotio cordis (Latin, "agitation / disruption of the heart") is a rare disruption of heart rhythm that occurs as a result of a blow to the area directly over the heart (the precordial region) at a critical instant during the cycle of a heartbeat. [1] The condition is 97% fatal if not treated within three minutes. [2]
[1] [2] In the Wiggers diagram, the X-axis is used to plot time subdivided into the cardiac phases, while the Y-axis typically contains the following on a single grid: Blood pressure. Aortic pressure; Ventricular pressure; Atrial pressure; Ventricular volume; Electrocardiogram; Arterial flow (optional) Heart sounds (optional)
In a healthy heart all activities and rests during each individual cardiac cycle, or heartbeat, are initiated and orchestrated by signals of the heart's electrical conduction system, which is the "wiring" of the heart that carries electrical impulses throughout the body of cardiomyocytes, the specialized muscle cells of the heart.
Electrical cardioversion, on the other hand, uses an electrical pulse of energy delivered to the heart, that is synchronized with the fast rate to be delivered on the R-wave, which is the peak of the QRS complex; and this is done to try and avoid delivering it during a vulnerable period on the T wave, in which the electrical cardioversion could ...
The event’s timing, coinciding with his epic year, was too perfect to pass up. Thus, excitement bubbled after the NFL declared Lamar the 2025 Super Bowl halftime entertainment , a first for a ...
The heart is located in the middle of the abdomen with its tip slightly towards the left side of the abdomen. Disorders of the heart lead to heart disease and cardiovascular disease and can lead to a significant number of deaths: cardiovascular disease is the leading cause of death in the U.S. and caused 24.95% of total deaths in 2008. [19]
Today's spangram answer on Saturday, January 11, 2025, is TIMING. What Are Today’s NYT Strands Answers, Word List for Saturday, January 11? DAWN. NOON. DAYBREAK. MORNING. DUSK. TWILIGHT.