Irregular coronary heart rhythms (arrhythmias) are sequences of heartbeats which are irregular. They’re too quick, too sluggish, or carried out by way of an irregular electrical pathway by way of the guts. Coronary heart rhythms differ from one individual to the opposite. Well being, age and health are sometimes key elements.

The guts is a muscular organ with 4 chambers, designed to work effectively, reliably, and constantly over a lifetime. The muscular partitions of every chamber contract in a regulated sequence, pumping blood as required by the physique whereas expending as little power as attainable throughout every heartbeat.

Contraction of the muscle fibers inside the coronary heart is managed by electrical energy. This flows by way of the guts in a exact method, alongside distinct pathways and at a managed velocity. The electrical present that begins every heartbeat, originates within the coronary heart’s pacemaker, situated within the prime of the higher proper coronary heart chamber (proper atrium). The speed at which the pacemaker discharges the electrical present determines the guts fee. This price is influenced by nerve impulses and ranges of sure hormones inside the bloodstream.

The guts fee is regulated mechanically by the autonomic nervous system, which consists of the sympathetic and parasympathetic divisions. The sympathetic division will increase the guts price via a community of nerves referred to as the sympathetic plexus. The parasympathetic division decreases the guts price by means of a single nerve, the vagus nerve.

In an grownup at relaxation, the guts fee is often between sixty and 100 beats per minute. Nevertheless, decrease charges could also be regular in younger adults, notably those that are bodily match. An individual’s coronary heart fee varies usually in response to train and such stimuli as ache and anger. Coronary heart rhythm is taken into account irregular solely when the guts price is inappropriately quick (referred to as tachycardia) or sluggish (generally known as bradycardia), or is irregular, or when electrical impulses journey alongside irregular pathways.

Abnormal Heart Rhythms (arrhythmias)
Abnormal Heart Rhythms (arrhythmias)
Abnormal Heart Rhythms (arrhythmias)
Abnormal Heart Rhythms (arrhythmias)

Abnormal Heart Rhythms (arrhythmias)

Related terms: Types of Irregular Heart Rhythms, Types of Arrhythmias, Heart Flutters in Women Over 50, What Causes Tachycardia in Women, Is an Extra Heartbeat Dangerous, Heart Rate Irregular Rhythm, What is a Heart Arrhythmia, Abnormal Low Resting Heart Rate