title: Narrowed splitting of the second heart sound upon inspiration in patients with giant left atrium.
mesh_terms: D000328:Adult; D001281:Atrial Fibrillation / Q000175:diagnosis; D006328:Cardiac Catheterization; D006332:Cardiomegaly / Q000175:diagnosis* / Q000000981:diagnostic imaging; D004562:Electrocardiography; D005260:Female; D006326:Heart Auscultation; D006801:Humans; D008875:Middle Aged; D008944:Mitral Valve Insufficiency / Q000150:complications / Q000175:diagnosis; D008946:Mitral Valve Stenosis / Q000150:complications / Q000175:diagnosis; D010701:Phonocardiography; D011011:Pneumoencephalography; D012119:Respiration