title: Spatial velocity electrocardiogram of the P wave in atrial overload.
mesh_terms: D000293:Adolescent; D000328:Adult; D006325:Heart Atria / Q000503:physiopathology; D006331:Heart Diseases / Q000503:physiopathology*; D006339:Heart Rate; D006344:Heart Septal Defects, Atrial / Q000503:physiopathology; D006801:Humans; D006976:Hypertension, Pulmonary / Q000503:physiopathology; D008297:Male; D008875:Middle Aged; D008946:Mitral Valve Stenosis / Q000503:physiopathology; D011666:Pulmonary Valve Stenosis / Q000503:physiopathology; D013771:Tetralogy of Fallot / Q000503:physiopathology; D014672:Vectorcardiography