CURRENT criteria for the electrocardiographic diagnosis of right ventricular hypertrophy -3 depend primarily upon abnormal axis deviation and changes in the right precordial leads (V1, V4.R7). The R/S ratio in these leads has proved to be of great value in the recognition of right ventricular hypertrophy. Various patterns (qR, rS, rsR', Rs) are encountered and many theories have been put forwar...

Letter by Kern Regarding Article, “High-Pressure Loculated Pericardial Effusion in Postpericardiotomy Syndrome” To the Editor: Drs Syros and Maysky1 present a remarkable case of pericardial effusion due to post pericardiotomy syndrome in an 81-year-old man. I am confused about the hemodynamics displayed in Figure 2, which shows a pericardial pressure that appears to be exactly like that of a ri...

CURRENT criteria for the electrocardiographic diagnosis of right ventricular hypertrophy -3 depend primarily upon abnormal axis deviation and changes in the right precordial leads (V1, V4.R7). The R/S ratio in these leads has proved to be of great value in the recognition of right ventricular hypertrophy. Various patterns (qR, rS, rsR', Rs) are encountered and many theories have been put forwar...

CURRENT criteria for the electrocardiographic diagnosis of right ventricular hypertrophy -3 depend primarily upon abnormal axis deviation and changes in the right precordial leads (V1, V4.R7). The R/S ratio in these leads has proved to be of great value in the recognition of right ventricular hypertrophy. Various patterns (qR, rS, rsR', Rs) are encountered and many theories have been put forwar...

CURRENT criteria for the electrocardiographic diagnosis of right ventricular hypertrophy -3 depend primarily upon abnormal axis deviation and changes in the right precordial leads (V1, V4.R7). The R/S ratio in these leads has proved to be of great value in the recognition of right ventricular hypertrophy. Various patterns (qR, rS, rsR', Rs) are encountered and many theories have been put forwar...

CURRENT criteria for the electrocardiographic diagnosis of right ventricular hypertrophy -3 depend primarily upon abnormal axis deviation and changes in the right precordial leads (V1, V4.R7). The R/S ratio in these leads has proved to be of great value in the recognition of right ventricular hypertrophy. Various patterns (qR, rS, rsR', Rs) are encountered and many theories have been put forwar...

CURRENT criteria for the electrocardiographic diagnosis of right ventricular hypertrophy -3 depend primarily upon abnormal axis deviation and changes in the right precordial leads (V1, V4.R7). The R/S ratio in these leads has proved to be of great value in the recognition of right ventricular hypertrophy. Various patterns (qR, rS, rsR', Rs) are encountered and many theories have been put forwar...

BACKGROUND Heart failure with preserved ejection fraction (HFpEF) is recognized as a major cause of cardiovascular morbidity and mortality. Thus, a profound understanding of the pathophysiologic changes in HFpEF is needed to identify risk factors and potential treatment targets in this specific patient population. Therefore, we aimed to comprehensively assess the impact of left- and right-ventr...

Enhanced AAIR7DDDR pacing (atrial-based Managed Ventricular Pacing [MVP]) is a novel pacing mode that facilitates intrinsic conduction whenever possible to mitigate the deleterious effects of prolonged duration right ventricular (RV) electric stimulation on left ventricular contractility. The following case illustrates uncommon ECG and hemodynamic consequences of this algorithm in a patient wit...

Ebstein's anomaly (EA) is a rare congenital malformation, characterized by an apical displacement and dysplasia of the septal leaflet of the tricuspid valve with a right ventricular atrialization compromising its function. This malformation includes electrical conduction abnormalities, and very rarely ventricular arrhythmias. We report the case of a 22-year-old male, presenting with dizziness a...