title: Detection of ventricular ectopy by a novel miniature electrocardiogram recorder.
abstract: BACKGROUND
  The ability of a miniaturized, skin-attached, 3-channel electrocardiogram (ECG) recorder prototype to detect ventricular ectopic beats (VEBs) and ventricular fibrillation (VF) was compared with that of standard Holter ECG.
  
  
  METHODS
  Concurrent 15-hour ECG recordings were made in 143 patients using an experimental device provided by Philips Healthcare (Seattle, WA) and a commercially available Holter recorder. In a consensus review process, 3 physicians (M.L., A.J., and A.G.), blinded for the recording device, analyzed 1804 seven-second strips for total number of VEBs, total number of their QRS configurations, and presence of VF. Agreement between the experimental and standard devices was calculated using Spearman correlation coefficients.
  
  
  RESULTS
  There was 100% agreement regarding VF recognition. Spearman correlation coefficients were 0.98 (P < .001) for the total number of VEBs and 0.91 (P < .001) for the total number of QRS configurations.
  
  
  CONCLUSIONS
  The accuracy of the experimental miniaturized ECG recorder for detecting ventricular activity was found to be high. This finding could be of clinical importance.
authors.affiliation: Department of Cardiology, Maastricht University Medical Center, The Netherlands. mlemmert@gmail.com
authors.forename: Miguel E
authors.initials: ME
authors.lastname: Lemmert
authors.forename: Andreas
authors.initials: A
authors.lastname: Janata
authors.forename: Petra
authors.initials: P
authors.lastname: Erkens
authors.forename: James K
authors.initials: JK
authors.lastname: Russell
authors.forename: Stacy
authors.initials: S
authors.lastname: Gehman
authors.forename: Krishnakant
authors.initials: K
authors.lastname: Nammi
authors.forename: Harry J G M
authors.initials: HJ
authors.lastname: Crijns
authors.forename: Fritz
authors.initials: F
authors.lastname: Sterz
authors.forename: Anton P M
authors.initials: AP
authors.lastname: Gorgels
mesh_terms: D000368:Aged; D015716:Electrocardiography, Ambulatory / Q000295:instrumentation*; D004867:Equipment Design; D019544:Equipment Failure Analysis; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D008904:Miniaturization; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D018879:Ventricular Premature Complexes / Q000175:diagnosis*