precordial lead


Also found in: Dictionary, Thesaurus, Legal, Financial, Encyclopedia.
Related to precordial lead: ECG, electrocardiograph, unipolar leads

precordial lead

precordial lead

A lead having one electrode placed over the precordium, the other over an indifferent region.
See also: lead
References in periodicals archive ?
Brugada syndrome is characterised by electrocardiographic changes demonstrating coved ST segment elevation in the right precordial leads.
The ECG shows ST segment elevation in the precordial leads V1 to V3, with morphology of the QRS complex resembling a right bundle branch block.
Six additional electrodes are placed at specific locations on the torso overlying the heart as the precordial leads (Wilson, Johnson, & Rosenbaum, 1944; Wilson, Macloed, & Barker, 1931).
007) enhanced occlusion-induced peak ST-segment elevation in precordial leads [V.
Brugada syndrome was first described in 1992 and is characterised by specific electrocardiogram (ECG) changes in the right precordial leads, a structurally normal heart and susceptibility to ventricular arrhythmias (1).
III] + largest R + S in any single precordial lead [greater than or equal to] 30 mm or [SV.
Precordial lead yields a positive deflection when facing positive charges and a negative deflection when facing negative charges.
An electrocardiogram (ECG) on presentation revealed sinus tachycardia with poor R wave progression in precordial leads and ST-segment elevation in leads V4 through V6, mimicking acute myocardial infarction [Figure 1].
of Cases % P pulmonale 17 34 QRS Right Axis Deviation 14 28 Right Bundle Branch Block 6 12 R/s > 1 in V1 4 8 r/s <1 in V6 3 6 Poor Progression of R 5 10 Wave in Right Precordial Leads [arrow down] T Wave Amplitude 2 4 in Right Precordial Leads Table 5.
It is characterized by persistent or transient ST elevation with successive negative T wave in the right precordial leads (V1, V2) with or without right bundle branch block in the absence of structural heart abnormalities.
Repolarization abnormalities * Inverted T-waves in the right * Inverted T-waves in leads precordial leads ([V.