title: [Diagnosis of endocardial electrode microdislocation at endocardial pacing].
abstract: Signs of microdislocation of an endocardial electrode (EE) were observed in 56 (14.4%) of 390 patients with an implantable pacemaker in the postoperative period. The microdislocation was diagnosed from electrocardiographic evidence for no response of a pacing pulse and from fluctuations in the pacing threshold, and from X-ray findings of the thickened and ill-defined outlines of a distal EE with preserving cardiac stimulation. The microdislocation preserves high parameters, as evidenced by a PM-20 M digital analyzer.
authors.affiliation: Russian Cardiology Research Production Center of MZ RF, Moscow.
authors.forename: V L
authors.initials: VL
authors.lastname: Kozlov
authors.forename: R S
authors.initials: RS
authors.lastname: Akchurin
authors.forename: I Z
authors.initials: IZ
authors.lastname: Korobkova
authors.forename: O I
authors.initials: OI
authors.lastname: Nenasheva
authors.forename: L V
authors.initials: LV
authors.lastname: Cheburkina
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001145:Arrhythmias, Cardiac / Q000628:therapy; D004562:Electrocardiography; D004566:Electrodes; D004699:Endocardium / Q000000981:diagnostic imaging*; D005260:Female; D005548:Foreign-Body Migration / Q000000981:diagnostic imaging* / Q000209:etiology / Q000503:physiopathology; D006801:Humans; D008297:Male; D008875:Middle Aged; D010138:Pacemaker, Artificial / Q000009:adverse effects*; D013902:Radiography, Thoracic