ectopic systole - ορισμός. Τι είναι το ectopic systole
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Τι (ποιος) είναι ectopic systole - ορισμός

CARDIAC ARRHYTHMIA
Ectopic beats; Ventricular extra beat; Extra-beat; Ectopic heart beat; Cardiac ectopy; Ectopic heartbeat

Junctional ectopic tachycardia         
RARE SYNDROME WITH IRREGULAR BEATING OF THE HEART IN PATIENTS RECOVERING FROM HEART SURGERY
Junctional Ectopic Tachycardia; Tachycardia, ectopic junctional; His bundle tachycardia; Ectopic junctional tachycardia
Junctional ectopic tachycardia (JET) is a rare syndrome of the heart that manifests in patients recovering from heart surgery. It is characterized by cardiac arrhythmia, or irregular beating of the heart, caused by abnormal conduction from or through the atrioventricular node (AV node).
ectopic pregnancy         
FEMALE REPRODUCTIVE SYSTEM DISEASE CHARACTERIZED BY THE IMPLANTATION OF THE EMBRYO OUTSIDE THE UTERINE CAVITY
Ectopic Pregnancy; Tubal pregnancy; Fallopian pregnancy; Ectopic pregnancies; Tubal pregnancies; Extrauterine pregnancy; Pregnancy, ectopic; Extra-uterine pregnancy; Persistent ectopic pregnancy; Eccyesis; Tubal ab; Tubal abortion; Ectopic gestation; Pregnancy of unknown location; Pseudosac; Blob sign; Broad ligament pregnancy; Fimbrial pregnancy
¦ noun a pregnancy in which the fetus develops outside the womb, typically in a Fallopian tube.
systole         
PART OF THE CARDIAC CYCLE WHEN A HEART CHAMBER CONTRACTS
Systolic; Systole and Diastole; Systole (medicine); Sistolic; Hemisystole
['s?st(?)li]
¦ noun Physiology the phase of the heartbeat when the heart muscle contracts and pumps blood into the arteries. Often contrasted with diastole.
Derivatives
systolic -'st?l?k adjective
Origin
C16: via late L. from Gk sustole, from sustellein 'to contract'.

Βικιπαίδεια

Ectopic beat

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 or group of fibers outside the region in the heart muscle ordinarily responsible for impulse formation (i.e., the sinoatrial node). An ectopic beat can be further classified as either a premature ventricular contraction (PVC), or a premature atrial contraction (PAC).

Some patients describe this experience as a "flip" or a "jolt" in the chest, or a "heart hiccup", while others report dropped or missed beats. Ectopic beats are more common during periods of psychological stress, exercise or debility; they may also be triggered by consumption of some food like carbohydrates, strong cheese, or chocolate.

It is a form of cardiac arrhythmia in which ectopic foci within either ventricular or atrial myocardium, or from finer branches of the electric transduction system, cause additional beats of the heart. Some medications may worsen the phenomenon.

Ectopic beats are considered normal and are not indicative of cardiac pathology. Ectopic beats often remain undetected and occur as part of minor errors in the heart conduction system. They are rarely indicative of cardiac pathology, although may occur more frequently or be more noticeable in those with existing cardiac abnormalities. Ectopic beats are a type of cardiac arrhythmias, which is a variety of cardiac abnormalities relating to rate or rhythm of the cardiac cycle.

Ectopic beats may become more frequent during anxiety, panic attack, and the fight-or-flight response due to the increase in sympathetic nervous activity or due to parasympathetic failure, stimulating either more frequent or more vigorous contractions and increasing stroke volume. The consumption of nicotine, alcohol, epinephrine and caffeine may also increase the incidence of ectopic beats, due to their influence on the action of cardiomyocytes.