title: Indications for permanent cardiac pacing in first-degree AV block: class I, II, or III?
authors: S S
authors: SS
authors: Barold
mesh_terms: D016275:Atrial Function; D002304:Cardiac Pacing, Artificial / Q000009:adverse effects / Q000379:methods*; D006327:Heart Block / Q000145:classification / Q000628:therapy*; D006801:Humans; D008944:Mitral Valve Insufficiency / Q000209:etiology; D010138:Pacemaker, Artificial / Q000009:adverse effects; D013577:Syndrome; D013599:Systole; D018487:Ventricular Dysfunction, Left / Q000150:complications / Q000628:therapy; D016276:Ventricular Function; D016277:Ventricular Function, Left