title: [Paroxysmal atrioventricular block during coronary revascularization with ultrasound. A case report].
abstract: The authors report the case of advanced atrioventricular block during a procedure of right coronary revascularisation with ultrasound. The different possible physiopathological mechanisms are discussed. Although no formal conclusions can be drawn, certain features suggest a paroxysmal nodal conduction defect secondary to transient parasympathetic stimulation by the ultrasound, a stimulation triggered by a Bezold-Jarish type of cardiac reflex or by direct local excitation of vagal fibres of the atrioventricular node.
authors.affiliation: Département de médecine interne, hôpital universitaire de Genève, Suisse.
authors.forename: H
authors.initials: H
authors.lastname: Sunthorn
authors.forename: P
authors.initials: P
authors.lastname: Maury
authors.forename: P
authors.initials: P
authors.lastname: Chatelain
mesh_terms: D003327:Coronary Disease / Q000628:therapy*; D004562:Electrocardiography; D005260:Female; D006327:Heart Block / Q000209:etiology* / Q000503:physiopathology; D006801:Humans; D008875:Middle Aged; D014464:Ultrasonic Therapy / Q000009:adverse effects*