title: Late Potential as a Predictor of re-Hospitalization after Percutaneous Coronary Intervention for Acute Coronary Syndrome.
abstract: OBJECTIVE
  The aim of this study was to investigate the significance of late potential (LP) after percutaneous coronary intervention (PCI) in acute coronary syndrome (ACS).
  
  
  METHODS
  We enrolled 135 consecutive patients with ACS admitted to Tokai University Hospital from February to December 2012. Twenty-four hour high-resolution ambulatory electrocardiogram was performed between post-PCI procedure and hospital discharge. The patients were divided into the LP-positive (33 patients) and LP-negative (102 patients) groups, and the relationship between LP and re-hospitalization was prospectively investigated.
  
  
  RESULTS
  The body mass index, serum creatinine, and creatine phosphokinase-MB were higher in the LP-positive group than in the LP-negative group (p < 0.05). The re-hospitalization rate was higher in the LP-positive group. (9 patients, 27.3% vs. 10 patients, 9.8%; p = 0.03). There were no significant differences in the occurrence of ventricular tachycardia or cardiac death between the groups. According to Kaplan-Maier analysis, proportion of re-hospitalization was significantly lower in the LP-positive group than in the LP-negative group (p = 0.01; average follow-up, 451.4 ± 25.9 days). The odds ratio of LP presence was 3.45 (highest among all variables; 95% confidence interval, 1.3-9.4; p < 0.01).
  
  
  CONCLUSIONS
  Positive LP in patients with ACS after PCI may predict re-hospitalization.
authors.forename: Mari
authors.initials: M
authors.lastname: Nakamura
authors.affiliation: Department of Cardiovascular Medicine, Tokai University School of Medicine, 143 Shimokasuya, Isehara, Kanagawa 259-1193, Japan. ko1@is.icc.u-tokai.ac.jp.
authors.forename: Koichiro
authors.initials: K
authors.lastname: Yoshioka
authors.forename: Mari
authors.initials: M
authors.lastname: Amino
authors.forename: Eiichi
authors.initials: E
authors.lastname: Watanabe
authors.forename: Toshiharu
authors.initials: T
authors.lastname: Fujii
authors.forename: Tadashi
authors.initials: T
authors.lastname: Hashida
authors.forename: Daisuke
authors.initials: D
authors.lastname: Fujibayashi
authors.forename: Shigetaka
authors.initials: S
authors.lastname: Kanda
authors.forename: Yoshinori
authors.initials: Y
authors.lastname: Kobayashi
authors.forename: Teruhisa
authors.initials: T
authors.lastname: Tanabe
authors.forename: Yuji
authors.initials: Y
authors.lastname: Ikari
mesh_terms: D054058:Acute Coronary Syndrome / Q000175:diagnosis* / Q000601:surgery*; D000368:Aged; D015716:Electrocardiography, Ambulatory; D005260:Female; D005544:Forecasting; D006801:Humans; D008297:Male; D008875:Middle Aged; D010359:Patient Readmission / Q000706:statistics & numerical data; D062645:Percutaneous Coronary Intervention; D011446:Prospective Studies