Premature contraction of the heart
When a single heartbeat occurs earlier than normal. This phenomenon can be within normal limits or represent a medically significant arrhythmia.

Medical dictionary. 2011.

Look at other dictionaries:

  • Frank-Starling law of the heart — The Frank Starling law of the heart (also known as Starling s law or the Frank Starling mechanism) states that the greater the volume of blood entering the heart during diastole (end diastolic volume), the greater the volume of blood ejected… …   Wikipedia

  • ICD-10 Chapter IX: Diseases of the circulatory system — International Statistical Classification of Diseases and Related Health Problems 10th Revision Chapter Blocks Title I A00–B99 Certain infectious and parasitic diseases II C00–D48 Neoplasms III D50–D89 Diseases of the blood and blood forming… …   Wikipedia

  • Premature ventricular contraction — Classification and external resources A premature ventricular contraction marked by the arrow. ICD 10 I …   Wikipedia

  • Heart failure — Classification and external resources The major signs and symptoms of heart failure. ICD 10 I5 …   Wikipedia

  • Heart rate turbulence — (HRT) is the return to equilibrium of heart rate after a premature ventricular contraction (PVC). It consists of a brief speed up in heart rate, followed by a slow decrease back to the baseline rate. An important feature of HRT is that PVCs occur …   Wikipedia

  • Heart block — Classification and external resources ICD 10 I44 I45 ICD 9 …   Wikipedia

  • Premature atrial contraction — Infobox Disease Name = PAGENAME Caption = DiseasesDB = ICD10 = ICD10|I|49|1|i|30 ICD9 = ICD9|427.61 ICDO = OMIM = MedlinePlus = eMedicineSubj = eMedicineTopic = MeshID = D018880 Premature atrial contractions (PACs) are a type of premature heart… …   Wikipedia

  • Premature ventricular contractions (PVCs) — Contractions of the lower chambers of the heart, the ventricles, which occur earlier than usual, because of abnormal electrical activity of the ventricles. The premature contraction is followed by a pause, as the heart electrical system… …   Medical dictionary

  • Contraction stress test — Oxytocin A contraction stress test (CST) is performed near the end of pregnancy to determine how well the fetus will cope with the contractions of childbirth. The aim is to induce contractions and monitor the fetus to check for heart rate… …   Wikipedia

  • contraction — 1. A shortening or increase in tension; denoting the normal function of muscle. 2. A shrinkage or reduction in size. 3. Heart beat, as in premature c..beat. [L. contractus, drawn together] after c …   Medical dictionary

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”