atrial depolarization

См. также в других словарях:

• atrial fibrillation — n very rapid uncoordinated contractions of the atria of the heart resulting in a lack of synchronism between heartbeat and pulse beat called also auricular fibrillation * * * see fibrillation * * * (AF) (AFib) an arrhythmia in which minute areas… …   Medical dictionary

• atrial capture — depolarization of the atria in response to a stimulus either originating elsewhere in the heart or pacemaker induced …   Medical dictionary

• atrial premature depolarization — (APD) see under complex …   Medical dictionary

• 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

• cardiovascular disease — Introduction       any of the diseases, whether congenital or acquired, of the heart and blood vessels (blood vessel). Among the most important are atherosclerosis, rheumatic heart disease, and vascular inflammation. Cardiovascular diseases are a …   Universalium

• Electrocardiogram — An electrocardiogram (ECG or EKG, abbreviated from the German Elektrokardiogramm ) is a noninvasive transthoracic graphic produced by an electrocardiograph, which records the electrical activity of the heart over time. Its name is made of… …   Wikipedia

• Electrocardiography — ECG redirects here. For other uses, see ECG (disambiguation). Not to be confused with echocardiogram, electromyogram, electroencephalogram, or EEG. Electrocardiography Intervention Image showing a patient connected to the 10 electrodes necessary …   Wikipedia

• beat — 1. To strike; to throb or pulsate. 2. A stroke, impulse, or pulsation, as of the heart or pulse. 3. Activity of a cardiac chamber produced by catching a stimulus generated elsewhere in the …   Medical dictionary

• Lewis lead — a modified EKG lead used to detect atrial flutter waves when atrial flutter is suspected clinically but not definitely demonstrated on the standard 12 lead EKG. In order to create the Lewis Lead, move the right arm electrode to the right, second… …   Wikipedia

• P–R interval — the portion of the electrocardiogram between the onset of the P wave (atrial depolarization) and the onset of the QRS complex (ventricular depolarization), lasting approximately 0.12 to 0.20 second in the adult. It is the time taken for an… …   Medical dictionary

• P–R segment — the baseline portion of the electrocardiogram from the end of the P wave (atrial depolarization) to the beginning of the QRS wave (ventricular depolarization); it is normally isoelectric. Cf. P–R interval …   Medical dictionary