title: An unusual electrocardiogram artifact: what is its source?
abstract: A diabetic female presented with nausea and vomiting. Her electrocardiogram showed sinus rhythm with two artifactual spikes, not synchronized with the cardiac rhythm. The patient had an implanted gastric electrical stimulation system for treating her diabetic gastroparesis. Recent DC shock for ventricular fibrillation during coronary angiography caused malfunction of the gastric pacemaker.
authors.affiliation: Department of Neurology, The University of Texas Medical Branch, Galveston, TX 77555-0553, USA.
authors.forename: Nischita K
authors.initials: NK
authors.lastname: Reddy
authors.forename: Ramanna
authors.initials: R
authors.lastname: Merla
authors.forename: Nonko D
authors.initials: ND
authors.lastname: Pehlivanov
authors.forename: Pankaj J
authors.initials: PJ
authors.lastname: Pasricha
authors.forename: David L
authors.initials: DL
authors.lastname: Ware
authors.forename: Yochai
authors.initials: Y
authors.lastname: Birnbaum
mesh_terms: D016477:Artifacts; D003951:Diagnostic Errors / Q000517:prevention & control*; D004599:Electric Stimulation Therapy / Q000295:instrumentation*; D004562:Electrocardiography / Q000379:methods*; D004868:Equipment Failure; D005260:Female; D018589:Gastroparesis / Q000628:therapy*; D006801:Humans; D008875:Middle Aged