A twenty year follow up of a selected, community population with complete right and left bundle branch block is reviewed by comparative mortality analysis. In this population, where cases and controls were free of hypertension and heart disease at entry, the presence of complete right bundle branch block does not have excess mortality. Complete left bundle branch block exhibits excess total and...

results three hundred patients were eligible for the study. after 1 month, 62% of patients (186 patients) reported good pain relief [95% confidence interval (ci) 0.53, 0.7]; 8.6% (26 patients) reported excellent pain relief (95% ci 0.07-0.09); 20. 4% (61 patients) reported poor pain relief (95% ci 0.18-0.22), and 9% (27 patients) reported no pain relief (95% ci 0.08-0.099). the average pain num...

INTRODUCTION AND OBJECTIVES Exercise-induced left bundle-branch block does not always denote the presence of underlying coronary artery disease. The aim of this study was to analyze the clinical characteristics and evolution of patients with rate-dependent left bundle-branch block. PATIENTS AND METHOD 9,318 consecutive exercise stress studies were reviewed. The clinical characteristics and ev...

Accurate branch prediction and instruction fetch prediction of a microprocessor are critical to achieve high performance. For a processor which fetches and executes multiple instructions per cycle, an accurate and high bandwidth instruction fetching mechanism becomes increasingly important to performance. Unfortunately, the relatively small basic block size exhibited in many general-purpose app...

The formation of the branches of the optic tract has been studied with the use of [3H]proline autoradiography, during development and during regeneration of the optic nerve in Xenopus with one compound ventral (VV) eye made by the embryonic fusion of two ventral eye fragments. The formation of the optic pathway was abnormal in that the lateral branch failed to develop, suggesting that fibres fr...

Alternating bundle branch block (ABBB) is a less commonly encountered phenomenon with the advent of re-perfusion therapy for acute myocardial infarction. ECGs simulating the appearance of an ABBB need to be carefully analysed. We present an ECG showing a baseline Left Bundle Branch Block(LBBB) progressing to a high grade AV block with escape complexes having a Right Bundle Branch Block (RBBB) m...

The present study was an attempt to identify the location of genioglossal respiratory and swallowing motoneuron cell bodies within the hypoglossal (XII) nucleus using both electrophysiological and morphological studies. The genioglossus muscle is innervated by the genioglossal branch of the medial XII nerve. At the entrance to the muscle, the genioglossal branch divides in the directions of the...

During the past five years 161 cases of bundlebranch block have been seen in the Cardiac Department of St. Vincent's Hospital. These patients have been evaluated clinically in an attempt to identify all possible associated and causative factors. This communication deals with these various factors and attempts to identify their relative importance in the genesis of both types of conduction defec...

Two patients who developed left bundle-branch block with increase in heart rate are presented. Atrial pacing during His bundle recording studies showed differing responses in the ventricular specialized conduction system of the two patients. In one, the onset of left bundle-branch block was associated with no change in the previously normal HVinterval (so msec), while in the second the HV inter...

BACKGROUND Definitive diagnosis of bilateral bundle-branch delay/block may be made when catheter-induced right bundle-branch block (RBBB) develops in patients with baseline left bundle-branch (LBB) block. We hypothesized that a RBBB pattern with absent S waves in leads I and aVL will identify bilateral bundle-branch delay/block. METHODS AND RESULTS Fifty patients developing transient RBBB pat...