title: [The pseudo-pacemaker syndrome].
abstract: We describe three cases of the pseudo-pacemaker syndrome. One of them due to selective fast pathway fulguration of atrioventricular nodal reentrant tachycardia and two others have occurred in spontaneous form. All cases were related with the presence of first-degree atrioventricular block and sinus node tachycardia. The treatment was done with complete atrioventricular block induction catheter ablation and permanent pacemaker implantation in two patients. In conclusion, the procedure of radiofrequency ablation to control AV nodal reentry tachycardia must preserve the fast nodal pathway in order to avoid the pseudo-pacemaker syndrome and this syndrome can spontaneously occur and must be considered during investigation of etiology of syncope.
authors.affiliation: Instituto do Coração, Hospital das Clínicas, FMUSP, San Paulo.
authors.forename: R
authors.initials: R
authors.lastname: Kuniyoshi
authors.forename: E
authors.initials: E
authors.lastname: Sosa
authors.forename: M
authors.initials: M
authors.lastname: Scanavacca
authors.forename: M
authors.initials: M
authors.lastname: Martinelli
authors.forename: L
authors.initials: L
authors.lastname: Magalhães
authors.forename: D
authors.initials: D
authors.lastname: Hachul
authors.forename: A
authors.initials: A
authors.lastname: Lewandowski
authors.forename: A
authors.initials: A
authors.lastname: Sarabanda
authors.forename: G
authors.initials: G
authors.lastname: Bellotti
authors.forename: F
authors.initials: F
authors.lastname: Pileggi
mesh_terms: D000328:Adult; D000368:Aged; D017115:Catheter Ablation / Q000009:adverse effects*; D002908:Chronic Disease; D004562:Electrocardiography; D005260:Female; D006327:Heart Block / Q000175:diagnosis / Q000209:etiology / Q000628:therapy; D006801:Humans; D008297:Male; D008875:Middle Aged; D010138:Pacemaker, Artificial; D011183:Postoperative Complications / Q000175:diagnosis / Q000209:etiology* / Q000628:therapy; D013575:Syncope / Q000175:diagnosis / Q000209:etiology / Q000628:therapy; D013577:Syndrome; D013611:Tachycardia, Atrioventricular Nodal Reentry / Q000150:complications / Q000601:surgery
vernacular_title: Pseudo-síndrome de marcapasso.