title: Phonocardiographic diagnosis of diaphragmatic flutter.
abstract: A 45-year-old man was reported who experienced rapid rhythmic nodding of his head and equally rapid contractions in his epigastrium, which participated by certain psychic situations. Auscultation and phonocardiography revealed a sound with "machine" rhythmicity at a rate of 333 per minute over the lower lateral thoracic region during all cardiac phases, and a diagnosis of "diaphragmatic flutter" was established. The symptoms and signs were controlled by diazepam.
authors.affiliation: Central Institute of Cardiovascular Research, Academy of Sciences of the German Democratic Republic, Berlin-Buch.
authors.forename: H R
authors.initials: HR
authors.lastname: Ruser
mesh_terms: D000328:Adult; D001282:Atrial Flutter / Q000175:diagnosis; D001314:Auscultation; D003937:Diagnosis, Differential; D003964:Diaphragm / Q000503:physiopathology*; D003975:Diazepam / Q000627:therapeutic use; D004562:Electrocardiography; D006801:Humans; D008297:Male; D010701:Phonocardiography; D010791:Phrenic Nerve / Q000502:physiology
chemical_list: D003975:Diazepam