Flutter

Flutter: It is regular type of rapid beating.

Fibrosis

Fibrosis: An unnatural formation of fibrous tissue or connective tissue as a result of infection or injury.

Fibrillation

Fibrillation: It is irregular type of rapid beating.

Epimer

Epimer: It is one of the two molecules which have difference in the arrangement of atoms surrounding a chiral atom.

Ectopic

Ectopic: This is referred for those organs or parts of the body which occur not on their normal position. While denoting to heartbeat, this denotes to developing from other than the sinoatrial node.

Effective refractory period

Effective refractory period: The time period in which there is weak conduction of impulses.

Dyspnea

Dyspnea: It refers to difficulty in breathing which may be due to any heart disease.