title: [Cardiac output (echocardiographic determination) in patients with the VVI artificial cardiac pacemaker].
mesh_terms: D000368:Aged; D001281:Atrial Fibrillation / Q000503:physiopathology*; D002302:Cardiac Output; D004452:Echocardiography; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010138:Pacemaker, Artificial / Q000009:adverse effects*
vernacular_title: La portata cardiaca (determinazione ecocardiografica) nel soggetto con pacemaker cardiaco artificiale VVI.