Using 49 capacitive-coupled electrodes, mattress-type harness was developed to obtain posterior body surface potential map (P-BSPM) in dressed individuals. The aim of this study was to investigate how valuable information P-BSPM could provide, especially in discrimination of old myocardial infarction (OMI). P-BSPM of 59 individuals were analyzed; 23 normal control, 11 right bundle branch block ...

The left bundle-branch potential (LB), as well as His bundle (H) and atrioventricular nodal (N) potentials, were recorded in intact dogs by using a tripolar electrode catheter positioned in the left ventricle. Simultaneous recordings of H and right bundlebranch (RB) activity from the right endocardial surface were also made. The LB potential was less rapid than the RB potential, but both occurr...

Thirty cases in which transient left anterior hemiblock (LAHB) obscured the diagnosis of right bundle branch block (RBBB) appearing during the first days of an acute myocardial infarction (AMI) are presented. Twenty-eight of the patients with AMI had a clear septal wall involvement, while the remaining two had an anterolateral and lateral wall AMI, respectively. These intraventricular conductio...

Given the QRS width, the intraventricular conduction delay could not be explained solely by the left anterior hemiblock (LAHB). Placement of the rightward precordial leads V1–V2 one intercostal (IC) space above the conventional level uncovered a terminal R-wave suggestive of complete right bundle branch block (RBBB) (Fig. 1). Although there might be a contributing role for delayed activation of...

The Electrocardiogram (ECG) plays significant role in assessing patients with abnormal activity in their heart. ECG recordings of the patient taken to analyze abnormality and classify type of disorder present in the heart functionality. An Electrocardiogram is a bioelectrical signal that records the heart’s electrical activity versus time. It is used to measure the rate and regularity of heartb...

Brugada syndrome, an entity described in 1992,1 is characterized by episodes of syncope or unexpected sudden death in patients with a structurally normal heart, and a characteristic electrocardiogram consisting of a right bundlebranch block (RBBB) pattern and ST segment elevation in the unipolar precordial V1 through V3 leads. The electrocardiographic pattern may be present, intermittent, or oc...

Previous reports have indicated an incidence of right bundle branch block (RBBB) and left anterior hemiblock (LAH) pattern varying from 8-22% following corrective surgery in patients with tetralogy of Fallot. Among 207 patients with tetralogy of Fallot operated on at our institution, 8.7% developed an ECG pattern of RBBB and LAH. These patients were followed for 1-13 years (mean 6.2 years) for ...

everal investigators1-3 have recorded His bundle activity in patients with left axis deviation and right bundle branch block (RBBB), using the catheter method Scherlag et a1 described in 1969.4 According to the concepts of trifascicular conduct i ~ n , ~ conduction delay or block in the right bundle branch (RBB) and anterosuperior division of the left bundle branch (LBB) is responsible for this...

A phonocardiographic study in a medium frequency range was made over various areas of the precordium in 27 cases of right bundle branch block (RBBB), 28 cases of left bundle branch block (LBBB), and 30 normal subjects of the same age. The various components of the first heart sound plus the pulses at the suprasternal notch and the right carotid artery were studied in regard to timing, relations...

Heart is a vital organ of the human body which plays an important role in the circulation of the blood throughout the body and also serves as the power source of the electrical impulses that generate the rhythmicity of the heart thus resulting in the successful circulation of the blood. Now any disturbance in the proper functioning of the heart results in some type of diseases termed as cardiov...