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Medical condition
Premature heart beat
A premature ventricular contraction marked by the arrow
Specialty
Cardiology
Emma's irregular heartbeat
Heart sounds of a 15 year old girl experiencing premature heart beats. Recorded during recovery after running, with the stethoscope over her tricuspid valve. Her heart rhythm is very irregular, with many premature ventricular contractions heard.
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A premature heart beat or extrasystole[1] is a heart rhythm disorder corresponding to a premature contraction of one of the chambers of the heart. Premature heart beats come in two different types: premature atrial contractions and premature ventricular contractions. Often they cause no symptoms but may present with fluttering in the chest or a skipped beat. They typically have no long term complications.
They most often happen naturally but may be associated with caffeine, nicotine, or stress. Usually no treatment is needed. They are the most common arrhythmia.[2]
^"Premature ventricular contractions (PVCs)". Mayo Clinic. April 30, 2022. Retrieved June 1, 2022.
^"Types of Arrhythmia". nhlbi.nih.gov. July 1, 2011. Archived from the original on June 7, 2015. Retrieved March 7, 2015.
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Emma's irregular heartbeat Heart sounds of a 15 year old girl experiencing prematureheartbeats. Recorded during recovery after running, with the stethoscope...
Premature atrial contraction (PAC), also known as atrial premature complexes (APC) or atrial prematurebeats (APB), are a common cardiac dysrhythmia characterized...
perceived as a "skipped beat" or felt as palpitations in the chest. PVCs do not usually pose any danger. The electrical events of the heart detected by the electrocardiogram...
Ectopic beat is a disturbance of the cardiac rhythm frequently related to the electrical conduction system of the heart, in which beats arise from fibers...
and bradyarrhythmias. Extra beats include premature atrial contractions, premature ventricular contractions and premature junctional contractions. Supraventricular...
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ventricular bigeminy, a sinus beat is shortly followed by a premature ventricular contraction (PVC), a pause, another normal beat, and then another PVC. In...
Rs), and "heart period variability". Measurement of the RR interval is used to derive heart rate variability. Methods used to detect beats include ECG...
called tachyarrhythmia, is a heart rate that exceeds the normal resting rate. In general, a resting heart rate over 100 beats per minute is accepted as tachycardia...
node fails to do so. It can also occur following a premature ventricular contraction or blocked premature atrial contraction. Junctional rhythms (if a bradycardia)...
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occur in some arrhythmias, such as premature ventricular contraction or atrial fibrillation. Sustained apex beat, namely prolonged upward cardiac force...
Heart rate (or pulse rate) is the frequency of the heartbeat measured by the number of contractions of the heart per minute (beats per minute, or bpm)...
A prematurely reported obituary is an obituary of someone who was still alive at the time of publication. Examples include that of inventor and philanthropist...
the heart or "junction". This area is not the normal but only a secondary source of cardiac electrical impulse formation. These prematurebeats can be...
include a laterally displaced apex beat (which occurs when the heart is enlarged) and a gallop rhythm (additional heart sounds), which may be heard as a...
Heart rate turbulence (HRT) is a baroreflex-mediated adjustment of heart rate which acts as a counter-mechanism to premature ventricular contraction (PVC)...
uncomfortable awareness of the heartbeat (palpitations), as well as disruption of the electrical system running through the abnormal heart muscle, lightheadedness...
block) is a type of heart block that occurs when the electrical signal traveling from the atria, or the upper chambers of the heart, to ventricles, or...
abdomen to help control abnormal heart rhythms. They work by sending electric pulses to the heart to prompt it to beat at a rate that is considered to...
Bradycardia, also called bradyarrhythmia, is a resting heart rate under 60 beats per minute (BPM). While bradycardia can result from various pathologic...
congestive heart failure and very low blood pressure, and less commonly include blood clotting in the apex of the left ventricle, irregular heartbeat, and...
cardiac arrest. In ventricular tachycardia, the heart also beats faster than normal, which may prevent the heart chambers from properly filling with blood....
radial artery and auscultation at the PMI, near the heart apex. It may be present in case of prematurebeats or atrial fibrillation. Pulse velocity, pulse deficits...
escape beat is a self-generated electrical discharge initiated by, and causing contraction of the ventricles of the heart; normally the heart rhythm is...
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