palpitation (noun)

a rapid and irregular heart beat

shaking, shakiness, trembling, quiver, quivering, vibration, palpitation (noun)

a shaky motion

"the shaking of his fingers as he lit his pipe"

palpitation (Noun)

An abnormal awareness of the beating of the heart.

Palpitation

Palpitation is an abnormality of heartbeat that ranges from often unnoticed skipped beats or accelerated heartrate to very noticeable changes accompanied by dizziness or difficulty breathing. Palpitations are common and occur in most individuals with healthy hearts. Palpitations without underlying heart disease are generally considered benign. However, heart palpitations can be symptoms of illnesses such as coronary heart disease, asthma, or emphysema. Patients can notice palpitations through abnormal or normal awareness. The difference between an abnormal awareness and a normal awareness is that the former interrupts other thoughts, whereas the latter is almost always caused by a concentration on the beating of one's heart. In general, a palpitation can be one of two types of beats: premature atrial contraction, or a premature ventricular contraction. Palpitations may be brought on by overexertion, stress, anxiety, panic, adrenaline, alcohol, nicotine, caffeine, cocaine, amphetamines, and other drugs, disease or as a symptom of panic disorder and many other factors. It can also happen in mitral stenosis. Nearly everyone experiences an occasional awareness of their heart beating or weak chest, but when it occurs frequently, it can indicate a problem. Palpitations may be associated with heart problems, but also with kidney disease, electrolyte imbalances for magnesium and calcium, anemias, asthma, and thyroid malfunction.

palpitation

Palpitations are perceived abnormalities of the heartbeat characterized by awareness of cardiac muscle contractions in the chest, which is further characterized by the hard, fast and/or irregular beatings of the heart.Symptoms include a rapid pulsation, an abnormally rapid or irregular beating of the heart. Palpitations are a sensory symptom and are often described as a skipped beat, rapid fluttering in the chest, pounding sensation in the chest or neck, or a flip-flopping in the chest.Palpitation can be associated with anxiety and does not necessarily indicate a structural or functional abnormality of the heart, but it can be a symptom arising from an objectively rapid or irregular heartbeat. Palpitation can be intermittent and of variable frequency and duration, or continuous. Associated symptoms include dizziness, shortness of breath, sweating, headaches and chest pain. Palpitation may be associated with coronary heart disease, hyperthyroidism, diseases affecting cardiac muscle such as hypertrophic cardiomyopathy, diseases causing low blood oxygen such as asthma and emphysema; previous chest surgery; kidney disease; blood loss and pain; anemia; drugs such as antidepressants, statins, alcohol, nicotine, caffeine, cocaine and amphetamines; electrolyte imbalances of magnesium, potassium and calcium; and deficiencies of nutrients such as taurine, arginine, iron, vitamin B12.